PRIVILEGED AND CONFIDENTIAL — ATTORNEY WORK PRODUCT
CALDERWOOD & HARKNESS LLP Antitrust & Competition Practice Group
MEMORANDUM
TO: Elaine Forsythe, Responsible Partner, Antitrust & Competition, Calderwood & Harkness LLP
FROM: Aaron Liu, Lead Associate, and Monica Reyes, Working Associate, Antitrust & Competition, Calderwood & Harkness LLP
DATE: December 9, 2022
RE: Preliminary Analysis of Opinions of Plaintiff's Expert Dr. Leonard Kuo — Ridgepoint Communications Inc. v. Northgate Networks America Inc. et al., Case No. 1:22-cv-01487-CMW (E.D. Va.); FCC Docket No. WC-23-0042
ENGAGEMENT REFERENCE: C&H-2022-ATR-00419
PRIVILEGE DESIGNATION: This memorandum is prepared in anticipation of litigation and constitutes attorney work product. It also contains information protected by the attorney-client privilege. Do not distribute outside the engagement team without prior authorization from the Responsible Partner.
I. Executive Summary
The purpose of this memorandum is to provide a preliminary analysis of the opinions of Dr. Leonard Kuo, Professor of Economics at Cavendish University, who has been retained by Hargrove, Winslow & Burke LLP ("HWB") on behalf of the plaintiff, Ridgepoint Communications Inc. ("Ridgepoint"), in connection with the above-captioned litigation and related FCC proceeding. Dr. Kuo's opinions, as disclosed in the complaint filed on September 19, 2022, the supporting exhibits attached thereto, and Dr. Kuo's publicly available academic writings, address three core topics: (1) relevant market definition, encompassing both the product and geographic dimensions; (2) Northgate Networks America Inc.'s ("Northgate") alleged monopoly power and market share within the proposed relevant market; and (3) an estimate of damages, specifically lost profits, allegedly suffered by Ridgepoint as a consequence of Northgate's purported anticompetitive conduct.
Our analysis, which is necessarily preliminary given that full expert discovery has not yet commenced, reveals that Dr. Kuo's opinions are vulnerable on multiple fronts. His proposed product market definition—limited to "last-mile enterprise fiber-optic transport services (lit and dark fiber) with speeds of 1 Gbps and above, sold to enterprise and government customers"—is artificially narrow. It excludes cable broadband services operating on DOCSIS 3.1 and DOCSIS 4.0 platforms, fixed wireless access ("FWA") services (including 5G-based enterprise broadband), and wholesale ethernet transport services, all of which constitute competitive alternatives available to enterprise customers in the relevant corridor. His geographic market definition—the "Philadelphia–Baltimore–Washington, D.C. metropolitan corridor"—appears gerrymandered to maximize Northgate's apparent market share by selectively encompassing only those areas where Northgate has significant last-mile infrastructure while excluding adjacent regions where competitive alternatives are densely deployed. His assertion that Northgate holds a 68% market share rests on a flawed denominator that reflects the artificially narrow product market. Under a properly defined market incorporating cable, fixed wireless, and wholesale ethernet alternatives, Northgate's share falls to approximately 31%, a figure that is insufficient, standing alone, to support an inference of monopoly power under Section 2 of the Sherman Act. Finally, Dr. Kuo's damages model—which projects $127 million in lost profits over a five-year period (2022–2027), yielding $381 million when trebled under Section 4 of the Clayton Act—is speculative and inflated, relying on demand projections that are untethered from Ridgepoint's demonstrated commercial capacity and that fail to account for alternative infrastructure available to Ridgepoint for serving enterprise customers.
Based on this preliminary analysis, we recommend that Dr. Kuo's testimony be challenged under Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579 (1993), on both reliability and fit grounds. We further recommend that the engagement team coordinate with Dr. Priya Narasimhan at Ellsworth Economic Consulting LLC to develop a comprehensive rebuttal expert report addressing all three areas of Dr. Kuo's opinions—market definition, monopoly power, and damages—and to prepare a Daubert motion in draft form for deployment when the current stay in Case No. 1:22-cv-01487-CMW is lifted. The investment in this expert rebuttal work is well justified given the magnitude of the potential damages exposure and the centrality of Dr. Kuo's opinions to Ridgepoint's case theory.
II. Background on Dr. Leonard Kuo
A. Qualifications and Academic Background
Dr. Leonard Kuo is a Professor of Economics at Cavendish University, where he holds a tenured appointment in the Department of Economics. His academic specialization, as reflected in his publicly available academic writings and faculty biography, centers on telecommunications market definition and industrial organization economics, with a particular focus on the application of antitrust principles to network industries. Dr. Kuo has published in several peer-reviewed journals, including articles addressing market concentration in telecommunications and the competitive dynamics of broadband deployment. He has also contributed chapters to edited volumes on antitrust economics and network regulation.
Based on publicly available information, Dr. Kuo has served as a retained expert witness in at least four prior antitrust matters involving telecommunications companies, though the full details of these engagements—including the identities of retaining counsel, the nature of his opinions, and whether his testimony was subject to any judicial criticism or exclusion—remain unknown at this stage. A comprehensive accounting of his prior engagements, his complete curriculum vitae, and his full publication list should be obtained through discovery when the current stay is lifted. These materials will be essential in evaluating the consistency of his methodology across engagements and in identifying any prior instances in which his opinions were challenged or excluded under Daubert.
It is noteworthy that Dr. Kuo has not, to our knowledge, served as an expert for the Federal Communications Commission ("FCC") or held any government regulatory position in the telecommunications sector. This is a potentially significant limitation on his credibility, particularly with respect to the regulatory overlap questions that are central to this case. The intersection of antitrust law and FCC regulatory authority under Sections 251 and 252 of the Telecommunications Act of 1996 is a critical dimension of Northgate's defense under the Harborview Holdings Inc. v. Law Offices of Curtis V. Trinko, LLP, 540 U.S. 398 (2004), framework. Dr. Kuo's purely academic background may limit his ability to speak authoritatively to the regulatory context in which the alleged conduct occurred, particularly when contrasted with the regulatory experience of Northgate's retained experts.
B. Retention and Fee Arrangement
Dr. Kuo was retained by Hargrove, Winslow & Burke LLP, the law firm representing Ridgepoint in both the federal court litigation and the related FCC proceeding. The lead partner on the Ridgepoint engagement at HWB is Victoria Hargrove, with Daniel Stoyanov serving as the senior associate responsible for day-to-day case management. It is relevant to note that HWB is engaged on a partial contingency basis, under an arrangement that reportedly provides for a reduced hourly rate combined with a success fee equal to 20% of any recovery obtained on Ridgepoint's behalf. This fee structure creates a financial incentive for HWB to maximize the recovery, and it raises questions regarding whether Dr. Kuo's own compensation arrangement is structured in a manner that aligns his financial interests with the outcome of the case.
Dr. Kuo's specific fee arrangement with HWB—including his hourly rate, any cap on total compensation, and whether any component of his fees is contingent on the outcome—is unknown at this stage. Discovery requests should be tailored to obtain the complete terms of Dr. Kuo's engagement, including his engagement letter, any amendments thereto, invoices submitted to date, and the total amount of compensation received or expected. This information will be critical both for assessing potential bias and for use in cross-examination at deposition and, potentially, at trial.
C. Scope of Opinions as Disclosed
Dr. Kuo's opinions, as currently known to us, are embedded in Ridgepoint's complaint (filed September 19, 2022) and the supporting materials referenced therein, including exhibits attached to the complaint and certain publicly available writings by Dr. Kuo that are cited in the complaint's factual allegations. The complaint references a "preliminary expert analysis" prepared by Dr. Kuo, but the full expert report has not yet been served, as all discovery in Case No. 1:22-cv-01487-CMW has been stayed since March 14, 2023, by order of Judge Charles M. Wentworth.
The three principal areas of Dr. Kuo's anticipated expert opinions are: (1) the definition of the relevant product and geographic markets for purposes of Ridgepoint's monopolization claim under Section 2 of the Sherman Act; (2) an assessment of Northgate's monopoly power and market share within the proposed relevant market; and (3) a quantification of damages, specifically Ridgepoint's alleged lost profits attributable to Northgate's refusal to provide interconnection access at the 14 disputed facilities under the terms sought by Ridgepoint. Because the full expert report has not been served, this analysis is necessarily preliminary and is based on the information currently available. We will update this memorandum upon receipt of Dr. Kuo's complete expert report and supporting materials when discovery resumes.
III. Analysis of Dr. Kuo's Relevant Product Market Definition
A. Dr. Kuo's Proposed Product Market
As disclosed in the complaint and referenced exhibits, Dr. Kuo defines the relevant product market as "last-mile enterprise fiber-optic transport services (lit and dark fiber) with speeds of 1 Gbps and above, sold to enterprise and government customers." This definition is significant for its deliberate narrowness across several dimensions. First, it limits the product market to fiber-optic technology exclusively, excluding all other transmission media that deliver comparable speeds to enterprise customers. Second, it imposes a speed floor of 1 Gbps, excluding lower-speed services that may be substitutable for certain enterprise applications. Third, it restricts the customer class to enterprise and government end-users, excluding residential customers and, more importantly, wholesale customers who may purchase the same underlying infrastructure services.
The rationale attributed to Dr. Kuo for this narrow definition is that enterprise customers requiring connectivity at speeds of 1 Gbps and above have no practical substitute for fiber-optic transport due to the superior reliability, lower latency, and higher bandwidth capacity of fiber-optic infrastructure as compared to alternative transmission technologies. In Dr. Kuo's apparent view, the technical characteristics of fiber optics create a distinct product market because enterprise customers cannot "switch" to alternative technologies without unacceptable degradation in performance quality. This rationale, while superficially plausible, is economically unsound and fails to withstand scrutiny under accepted antitrust market definition methodologies, as discussed below.
B. Critique: Artificially Narrow Product Market
We have identified four principal deficiencies in Dr. Kuo's proposed product market definition, each of which independently undermines its reliability and each of which, taken together, demonstrates that the definition is designed to maximize Northgate's apparent market share rather than to identify the economically meaningful competitive constraints facing Northgate.
Exclusion of Cable Broadband Services. Dr. Kuo's product market definition excludes cable broadband services, which represent a significant and growing competitive alternative for enterprise customers requiring 1 Gbps+ connectivity. Modern cable infrastructure operating on DOCSIS 3.1 and DOCSIS 4.0 platforms is capable of delivering speeds well above 1 Gbps to enterprise customers, with DOCSIS 4.0 specifications supporting downstream speeds of up to 10 Gbps. Multiple cable operators serve enterprise customers in the Philadelphia–Baltimore–Washington, D.C. corridor, including operators with extensive hybrid fiber-coaxial ("HFC") networks that are increasingly being deployed for enterprise applications. The performance characteristics of modern cable services—including speed, reliability, and uptime guarantees—are increasingly convergent with those of dedicated fiber services for a substantial proportion of enterprise applications. The exclusion of cable broadband services is not supported by a standard SSNIP (Small but Significant Non-transitory Increase in Price) analysis, because a hypothetical monopolist controlling all last-mile enterprise fiber services would lose a significant number of customers to cable alternatives if it attempted to impose a 5–10% price increase. Until and unless Dr. Kuo can demonstrate through rigorous empirical analysis that enterprise customers would not switch to cable in response to such a price increase, the exclusion of cable is methodologically indefensible.
Exclusion of Fixed Wireless Access (FWA). Dr. Kuo's definition also excludes fixed wireless access services, including 5G-based enterprise broadband offerings. FWA providers are increasingly serving enterprise customers at speeds of 1 Gbps and above, with deployment timelines that are substantially shorter than those for new fiber construction. FWA deployments have accelerated significantly in the Mid-Atlantic region over the past three years, driven by the availability of mid-band and millimeter-wave spectrum, the buildout of 5G infrastructure by major wireless carriers, and the entry of specialized fixed wireless providers targeting enterprise customers. Dr. Kuo's exclusion of FWA ignores demand-side substitutability—that is, the willingness and ability of enterprise customers to switch from fiber to fixed wireless services in response to a relative price increase for fiber. It also ignores supply-side substitutability, as FWA providers can deploy service to new enterprise locations relatively quickly and at significantly lower capital cost than new fiber construction. The exclusion of FWA from the relevant product market is particularly vulnerable given the rapid pace of technological change in the fixed wireless sector, which calls into question the durability of any performance advantages that fiber may currently enjoy over wireless alternatives.
Exclusion of Wholesale Ethernet Services. Dr. Kuo's definition further excludes wholesale ethernet transport services provided by competitive local exchange carriers ("CLECs"), incumbent local exchange carriers ("ILECs"), and other providers. Wholesale ethernet services are functionally interchangeable with lit fiber for many enterprise applications, as they deliver equivalent connectivity over the same or similar underlying infrastructure. Enterprise customers routinely evaluate wholesale ethernet offerings alongside dedicated fiber services when procuring last-mile connectivity, and the pricing of these services is influenced by competition from ethernet alternatives. By excluding wholesale ethernet from the product market, Dr. Kuo artificially inflates Northgate's market share by eliminating a significant category of competitive supply from the denominator. This exclusion is especially problematic because several competitive carriers operating in the corridor offer wholesale ethernet services that directly compete with Northgate's enterprise fiber offerings.
Failure to Perform or Disclose a Rigorous SSNIP Test. Perhaps the most fundamental methodological deficiency in Dr. Kuo's product market definition is the apparent failure to perform—or at least to disclose—a rigorous SSNIP test, also known as the hypothetical monopolist test. The SSNIP test is the standard methodology for defining relevant antitrust markets, as recognized by the FTC/DOJ Horizontal Merger Guidelines, the leading antitrust treatises, and the overwhelming weight of judicial authority. The test asks whether a hypothetical monopolist controlling all products in the proposed market could profitably impose a small but significant non-transitory increase in price (typically 5–10%) without losing sufficient sales to substitutes outside the market to make the price increase unprofitable. If such a price increase would be unprofitable because customers would switch to products outside the proposed market, then the market is too narrowly defined and must be expanded to include the next-closest substitutes.
The complaint references Dr. Kuo's market definition but does not indicate whether a SSNIP test was applied. The referenced exhibits do not contain the results of any such test. If Dr. Kuo's market definition rests entirely on qualitative assessments of product characteristics—such as the assertion that fiber provides superior reliability and latency—rather than on a quantitative analysis of customer switching behavior in response to price changes, this represents a significant methodological deficiency that goes directly to the reliability of his opinions under Daubert. Qualitative assessments of product features, without empirical verification through a SSNIP or equivalent test, are insufficient to define an antitrust market because they conflate product differentiation with the absence of competitive constraint. The fact that fiber may offer certain performance advantages over cable, FWA, or wholesale ethernet does not mean that these alternatives do not exert competitive pricing pressure on fiber services.
Cross-Reference with Northgate's Position. Northgate's position, which we have developed in consultation with Dr. Priya Narasimhan at Ellsworth Economic Consulting LLC, is that the properly defined product market includes cable broadband services, fixed wireless access services, and wholesale ethernet transport services, in addition to dedicated fiber-optic transport services. Under this broader and more economically defensible market definition, Northgate's market share is approximately 31%—well below the 68% figure asserted by Dr. Kuo and well below the threshold at which courts have typically inferred monopoly power. Dr. Narasimhan should be tasked with performing a full SSNIP analysis demonstrating that a hypothetical monopolist in last-mile enterprise fiber alone could not profitably impose a 5–10% price increase without losing a sufficient number of customers to cable, FWA, and wholesale ethernet substitutes to make the price increase unprofitable. This analysis will provide the empirical foundation for our challenge to Dr. Kuo's market definition and will be a centerpiece of both our Daubert motion and our summary judgment briefing.
C. Preliminary Daubert Vulnerability — Product Market
Dr. Kuo's failure to apply accepted economic methodology—specifically, the SSNIP/hypothetical monopolist test—goes directly to the reliability of his product market definition under Daubert. The Supreme Court's decision in Daubert v. Merrell Dow Pharmaceuticals, Inc., 509 U.S. 579 (1993), and its progeny require that expert testimony be based on sufficient facts or data, be the product of reliable principles and methods, and reflect a reliable application of those principles and methods to the facts of the case. Fed. R. Evid. 702. A product market definition that is not grounded in a SSNIP analysis—or at a minimum, a rigorous alternative methodology that tests customer substitution patterns—fails the reliability prong of this inquiry.
If Dr. Kuo cannot demonstrate, through empirical analysis, that enterprise customers in the Philadelphia–Baltimore–Washington, D.C. corridor would not switch to cable, FWA, or wholesale ethernet services in response to a 5–10% price increase for dedicated fiber services, his product market definition fails the hypothetical monopolist test and should be excluded as unreliable. Courts have repeatedly rejected narrow product market definitions in telecommunications cases where the proffering expert failed to account for competitive alternatives that are available to customers. We are developing the relevant precedent, including the FTC and DOJ Horizontal Merger Guidelines' approach to market definition and case law specifically addressing the rejection of narrow telecom market definitions, for inclusion in our Daubert motion.
IV. Analysis of Dr. Kuo's Relevant Geographic Market Definition
A. Dr. Kuo's Proposed Geographic Market
Dr. Kuo defines the relevant geographic market as the "Philadelphia–Baltimore–Washington, D.C. metropolitan corridor," a multi-state region covering portions of Pennsylvania, New Jersey, Delaware, Maryland, Virginia, and the District of Columbia. This corridor-based geographic market is anchored to the 14 specific Northgate facilities at which Ridgepoint seeks interconnection access, as follows:
1. 401 N. Broad Street, Philadelphia, PA 19108
2. 1500 Spring Garden Street, Philadelphia, PA 19130
3. 100 Delancey Place, Cherry Hill, NJ 08034
4. 220 S. Warren Street, Trenton, NJ 08608
5. 700 E. Pratt Street, Baltimore, MD 21202
6. 1 W. Fayette Street, Baltimore, MD 21201
7. 33 S. Gay Street, Baltimore, MD 21202
8. 9221 Corporate Boulevard, Rockville, MD 20850
9. 1200 New Hampshire Avenue NW, Washington, D.C. 20036
10. 600 New Jersey Avenue NW, Washington, D.C. 20001
11. 44755 Prentice Drive, Ashburn, VA 20147
12. 21571 Beaumeade Circle, Ashburn, VA 20147
13. 1807 Michael Faraday Court, Reston, VA 20190
14. 8100 Boone Boulevard, Tysons Corner, VA 22182
The geographic market thus spans from Philadelphia in the north through the New Jersey suburbs, across Delaware, through Baltimore, and down to the greater Washington, D.C. metropolitan area, including the Northern Virginia technology corridor. Dr. Kuo appears to treat this entire corridor as a single integrated geographic market in which competitive conditions are sufficiently homogeneous to warrant unified treatment for purposes of the market share and monopoly power analysis.
B. Critique: Gerrymandered Geographic Market
Dr. Kuo's corridor-based geographic market definition suffers from several critical deficiencies that suggest the corridor was drawn not to identify a meaningful economic market but rather to maximize Northgate's apparent dominance.
First, the corridor definition appears tailored to encompass only those areas where Northgate has significant last-mile fiber infrastructure while excluding adjacent regions where competitive alternatives are densely deployed. Northgate operates approximately 42,000 route-miles of fiber-optic infrastructure across 18 states on the eastern seaboard of the United States. The corridor identified by Dr. Kuo represents a carefully selected subset of Northgate's overall service territory—a subset chosen, it appears, to capture the areas where Northgate has the highest concentration of enterprise fiber connections while omitting nearby areas (such as portions of upstate New York, Connecticut, or central Pennsylvania) where Northgate's presence is more modest relative to competitors.
Second, the choice of a single corridor spanning from Philadelphia to Washington, D.C. obscures significant variations in competitive conditions among the component metropolitan areas. The competitive landscape for enterprise fiber services in Philadelphia differs materially from the competitive landscape in Baltimore, which in turn differs from that in the Washington, D.C. metropolitan area (including Northern Virginia). In Philadelphia, for example, several cable operators and CLECs maintain extensive enterprise-serving infrastructure, while in Northern Virginia, the concentration of data center operators creates a distinct competitive dynamic. By combining these disparate local markets into a single corridor, Dr. Kuo conceals pockets of robust competition that would reduce Northgate's apparent share in specific localities.
Third, Ridgepoint itself operates approximately 6,200 route-miles of fiber-optic infrastructure across Pennsylvania, New Jersey, Delaware, Maryland, and Virginia. Ridgepoint's own service footprint overlaps substantially with the corridor identified by Dr. Kuo, demonstrating that competitive alternatives to Northgate exist within the corridor itself. The fact that the plaintiff—the party claiming exclusion from the market—already operates an extensive fiber network within the very geographic area defined by its own expert raises serious questions about the competitive significance of the alleged exclusionary conduct.
Fourth, the geographic market should be subjected to a rigorous geographic SSNIP analysis—or, alternatively, an Elzinga-Hogarty test examining shipments into and out of the proposed geographic area—to determine whether the corridor constitutes a meaningful economic market. Such an analysis would examine whether customers located within any sub-area of the corridor could turn to providers based outside Dr. Kuo's proposed boundaries in response to a price increase by a hypothetical monopolist within the corridor. Given the interconnected nature of telecommunications infrastructure and the ability of providers to extend service into adjacent areas, it is highly likely that such an analysis would show significant competitive constraint from providers operating outside the corridor boundaries.
Fifth, a strong argument exists that individual metropolitan statistical areas ("MSAs")—Philadelphia, Baltimore, and Washington, D.C.—may constitute separate geographic markets for purposes of antitrust analysis. If the relevant geographic market is defined at the MSA level rather than the corridor level, Northgate's market share in some of these individual areas may be significantly lower than the 68% figure Dr. Kuo asserts for the corridor as a whole. This is particularly likely to be the case in the Washington, D.C. metropolitan area, where the density of competitive fiber providers in Northern Virginia (particularly in the Ashburn and Reston data center corridor) is among the highest in the nation.
C. Preliminary Daubert Vulnerability — Geographic Market
Dr. Kuo's geographic market definition is vulnerable under Daubert for reasons analogous to those identified with respect to his product market definition. If Dr. Kuo cannot justify the Philadelphia–Baltimore–Washington, D.C. corridor as a single integrated geographic market—rather than a collection of distinct local markets that have been aggregated for the purpose of maximizing Northgate's apparent share—his geographic market definition may be excluded as unreliable. The burden is on Dr. Kuo to demonstrate, through accepted economic methodology, that the corridor constitutes a meaningful economic market within which competitive conditions are sufficiently uniform to permit aggregation.
A critical question for discovery is whether Dr. Kuo performed any Elzinga-Hogarty test or similar geographic market delineation analysis. The Elzinga-Hogarty test, which examines the flow of products or services into and out of a proposed geographic area, is one of the standard methodologies for defining geographic markets in antitrust analysis. If Dr. Kuo did not perform such a test—or any equivalent quantitative analysis of geographic competitive constraints—the absence of such analysis constitutes an additional methodological deficiency that supports exclusion under Daubert. This issue should be a focus of both our discovery requests and the deposition of Dr. Kuo.
V. Analysis of Dr. Kuo's Market Share and Monopoly Power Opinions
A. Dr. Kuo's Market Share Estimate
Dr. Kuo asserts, as referenced in the complaint and supporting exhibits, that Northgate holds a 68% share of enterprise fiber-optic last-mile connections in the Philadelphia–Baltimore–Washington, D.C. corridor. This market share figure is based on Dr. Kuo's preliminary analysis, which was referenced in the complaint but not served as a full expert report. The numerator of his calculation consists of Northgate's enterprise fiber connections (lit and dark fiber at 1 Gbps and above) within the corridor, while the denominator consists of total enterprise fiber-optic last-mile connections at 1 Gbps and above within the corridor, as defined by his narrow product and geographic market.
This 68% figure is the linchpin of Ridgepoint's monopoly power argument. Under Section 2 of the Sherman Act, Ridgepoint must establish that Northgate possesses monopoly power in a relevant market, which in turn requires demonstrating that Northgate has the ability to control prices or exclude competition. While market share is not the sole indicator of monopoly power, it is typically the starting point of the analysis, and courts have generally required shares well above 50% to support an inference of monopoly power. Dr. Kuo's 68% figure, if accepted, would place Northgate in the range where courts have found market share alone sufficient to create an inference of monopoly power, subject to consideration of other structural market features.
B. Critique: Inflated Market Share
Dr. Kuo's 68% market share estimate is inflated by the cumulative effect of the deficiencies in his product and geographic market definitions discussed in Sections III and IV above. The principal critiques are as follows.
Denominator Problem. Because Dr. Kuo's product market excludes cable broadband services, fixed wireless access services, and wholesale ethernet transport services, the denominator of his market share calculation is artificially small. The denominator captures only enterprise fiber-optic last-mile connections at 1 Gbps and above, excluding from the competitive baseline all non-fiber alternatives that exert real-world competitive pressure on Northgate's pricing and market position. Including cable, FWA, and wholesale ethernet services in the denominator—consistent with a properly defined product market that accounts for demand-side and supply-side substitutability—would dramatically increase the total number of competitive connections counted in the denominator and correspondingly reduce Northgate's calculated share.
Northgate's Corrected Share. Under a properly defined market that includes cable, fixed wireless, and wholesale ethernet services, Northgate's market share is approximately 31%. This is Northgate's position, and it is consistent with the preliminary estimate prepared by Dr. Priya Narasimhan at Ellsworth Economic Consulting LLC. Dr. Narasimhan's estimate is based on publicly available data regarding competitive deployments in the corridor, supplemented by Northgate's internal data on its own connections and revenues. This estimate will be refined as additional data become available through discovery.
31% Share Insufficient for Monopoly Power. A 31% market share is insufficient, standing alone, to support an inference of monopoly power under Section 2 of the Sherman Act. Courts have consistently held that market shares below 50% are generally insufficient to establish monopoly power, absent extraordinary circumstances not present here. See, e.g., Calderon Industries v. Image Technical Services, Inc., 504 U.S. 451 (1992); United States v. Grinnell Corp., 384 U.S. 563, 571 (1966) (monopoly power typically inferred from market shares of 70% or more). Even at Dr. Kuo's asserted 68%, Ridgepoint would need to demonstrate significant barriers to entry and other structural features to sustain a monopoly power finding. At 31%, the claim fails as a matter of law.
Data Sources. A critical discovery priority is determining exactly what data Dr. Kuo relied upon for his market share calculation. Potential data sources include FCC Form 477 data (which reports broadband deployment and subscription data at the census-block level), proprietary databases maintained by industry research firms, customer surveys, or other sources. The reliability and comprehensiveness of Dr. Kuo's data are essential to evaluating the robustness of his share estimate. FCC Form 477 data, for example, are known to have significant limitations, including the reporting of deployment capability rather than actual subscriptions and the use of census blocks rather than precise addresses. If Dr. Kuo relied on FCC Form 477 data without adjusting for these known limitations, his share estimate may be based on unreliable inputs.
C. Barriers to Entry Analysis
Even if Dr. Kuo's 68% market share figure were accepted, Ridgepoint would need to demonstrate the existence of significant barriers to entry to sustain a finding of monopoly power. Dr. Kuo will presumably offer opinions on barriers to entry as part of his full expert report, and we anticipate that his arguments will focus on three principal categories of barriers: (1) the high capital costs associated with new fiber-optic deployment, including the costs of physical construction, equipment, and installation; (2) the difficulty and expense of acquiring rights-of-way from governmental authorities and private property owners for new fiber construction; and (3) the long deployment timelines required to plan, permit, and construct new fiber-optic routes.
These arguments, while not frivolous, are subject to significant counter-arguments. First, cable operators already have extensive physical infrastructure in place throughout the corridor—including conduit, distribution hubs, and customer premises equipment—that can be leveraged to serve enterprise customers without the need for greenfield fiber construction. The incremental capital cost of serving an additional enterprise customer over existing cable infrastructure is substantially lower than the cost of new fiber construction. Second, fixed wireless access providers can deploy service to new enterprise locations rapidly and at a fraction of the capital cost of fiber construction. FWA deployment does not require rights-of-way for physical construction and can be completed in weeks rather than the months or years required for new fiber builds. Third, and perhaps most fundamentally, the FCC's regulatory framework under Sections 251 and 252 of the Telecommunications Act of 1996 is specifically designed to facilitate competitive entry by requiring incumbent local exchange carriers to provide interconnection, unbundled network elements, and resale at regulated rates. The existence of this regulatory framework—which provides a specific, detailed mechanism for competitive entry—undermines the very "essential facility" theory that Ridgepoint implicitly advances and supports Northgate's position under the Trinko framework.
Dr. Narasimhan should address barriers to entry comprehensively in her rebuttal report, drawing on her extensive regulatory experience to demonstrate that the barriers cited by Dr. Kuo are significantly lower than he suggests and that the FCC's regulatory framework provides a meaningful pathway for competitive entry that is inconsistent with a finding of durable monopoly power.
VI. Analysis of Dr. Kuo's Damages Opinions
A. Dr. Kuo's Damages Theory
Dr. Kuo's damages opinion, as disclosed in the complaint and referenced materials, asserts that Ridgepoint suffered total lost profits of $127 million over a five-year projected period spanning 2022 through 2027. Under Section 4 of the Clayton Act, 15 U.S.C. § 15, this figure is subject to mandatory trebling, yielding a total damages claim of $381 million. Dr. Kuo's methodology employs a "but-for" analysis that compares Ridgepoint's projected revenues and profits assuming access to the 14 disputed Northgate facilities against Ridgepoint's actual revenues and profits without such access. The differential between the "but-for" scenario and the actual scenario constitutes Dr. Kuo's estimate of lost profits.
The premise underlying this damages theory is that, but for Northgate's refusal to provide Ridgepoint with interconnection access at the 14 facilities on commercially reasonable terms, Ridgepoint would have been able to serve a substantial volume of additional enterprise customers in the corridor by utilizing Northgate's last-mile fiber infrastructure to reach customer premises. The lost-profits estimate is thus a function of the number of additional customers Ridgepoint would have obtained, the revenue per customer, the profit margin on that revenue, and the time period over which these profits would have accrued.
B. Critique: Speculative and Inflated Damages
Dr. Kuo's damages estimate of $127 million in pre-trebling lost profits is both speculative and grossly inflated. We have identified five principal deficiencies in his damages methodology.
Speculative Demand Projections. Ridgepoint's total revenue for fiscal year 2022 was approximately $387 million. Dr. Kuo's damages estimate of $127 million in lost profits implies that Ridgepoint would have captured an enormous incremental share of the enterprise fiber market in the corridor through access to the 14 disputed facilities alone. This implication is implausible on its face. Ridgepoint currently operates approximately 6,200 route-miles of fiber infrastructure and employs approximately 1,450 personnel. Generating $127 million in incremental lost profits from 14 additional interconnection points—in a corridor where Ridgepoint already has a significant physical presence—would require demand projections that are wholly disproportionate to Ridgepoint's demonstrated scale of operations and commercial capacity. Dr. Kuo's demand projections appear to assume that access to the 14 facilities would transform Ridgepoint's competitive position in the corridor far beyond what its existing infrastructure, workforce, and sales capacity could realistically support.
Failure to Account for Alternative Infrastructure. A proper lost-profits damages model must account for the mitigation opportunities available to the plaintiff. Ridgepoint had multiple alternative means of serving enterprise customers in the corridor without access to the 14 Northgate facilities. These alternatives include: (a) building its own last-mile fiber facilities, which Ridgepoint has the capital and operational capacity to do given its existing 6,200 route-mile network; (b) leasing capacity from other providers, including cable operators, other CLECs, and ILECs, all of which offer enterprise-grade connectivity in the corridor; and (c) utilizing fixed wireless solutions to reach enterprise customer premises, which can be deployed rapidly and at lower cost than new fiber construction. Dr. Kuo's damages model apparently does not account for these available alternatives. By assuming that Ridgepoint's only path to serving additional enterprise customers was through interconnection at the 14 Northgate facilities, Dr. Kuo overstates the incremental profits that Ridgepoint lost as a result of Northgate's conduct. The correct "but-for" world must account for the realistic steps Ridgepoint would have taken to mitigate its losses by utilizing alternative infrastructure, and the damages calculation must be reduced by the profits Ridgepoint could have earned through such mitigation.
Disproportionality to Existing Commercial Relationship. Ridgepoint's annual spend with Northgate was only approximately $1.8 million in fiscal year 2021. This figure was below the $5 million Wholesale Access Program ("WAP") threshold that Northgate applies as a minimum annual revenue commitment for participation in its wholesale interconnection program. The modest scale of Ridgepoint's existing commercial relationship with Northgate—$1.8 million per year, below the WAP threshold—stands in stark contrast to the $127 million lost-profits claim. Projecting $127 million in lost profits from access to 14 additional facilities, when Ridgepoint's entire commercial relationship with Northgate generated only $1.8 million in annual revenue, represents an increase of approximately two orders of magnitude that is not credibly supported by the available evidence. This disproportionality further suggests that Dr. Kuo's demand projections are untethered from the actual scale and trajectory of Ridgepoint's business with Northgate.
Projection Period Concerns. Dr. Kuo's damages model projects lost profits over a five-year period from 2022 through 2027. While five-year projection periods are not inherently unreasonable in commercial damages cases, the application of such a period to the telecommunications industry introduces substantial uncertainty. The telecommunications sector is characterized by rapid technological change, including the ongoing deployment of 5G, the expansion of FWA, the evolution of cable broadband platforms, and the emergence of new competitive alternatives. Competitive conditions in the enterprise fiber market in 2027 may differ dramatically from conditions in 2022. A responsible damages model must account for these technology shifts, the anticipated competitive responses of existing and potential rivals, and macroeconomic factors (including the potential for economic downturn, changes in enterprise IT spending patterns, and interest rate fluctuations) that could affect the demand for enterprise fiber services over the projection period. The extent to which Dr. Kuo's model accounts for these factors is unknown and must be explored in discovery.
No Apparent discounting for Risk. A lost-profits damages calculation must discount projected future profits to present value using an appropriate discount rate that reflects the risk inherent in the projected cash flows. A higher discount rate reflects greater uncertainty in the projected profits, while a lower rate implies greater certainty. We need to determine through discovery whether Dr. Kuo properly discounted his projected lost profits for business risk, and if so, what discount rate he employed and what methodology he used to derive that rate. If Dr. Kuo used an inappropriately low discount rate—for example, a risk-free rate or a rate that does not adequately account for the speculative nature of the projected demand—his present-value calculation will be inflated and unreliable. The choice of discount rate is a frequent subject of Daubert challenges in antitrust damages cases, and it should be a focus of both discovery and cross-examination.
C. Dr. Narasimhan's Preliminary Rebuttal
Dr. Priya Narasimhan of Ellsworth Economic Consulting LLC has prepared a preliminary rebuttal analysis estimating Ridgepoint's provable lost profits at no more than $18 million to $24 million before trebling, yielding a range of $54 million to $72 million after mandatory trebling under Section 4 of the Clayton Act. Dr. Narasimhan's rebuttal estimate reflects three principal corrections to Dr. Kuo's methodology.
First, Dr. Narasimhan corrects for the availability of alternative infrastructure by modeling the "but-for" world in a manner that accounts for Ridgepoint's ability to serve enterprise customers through means other than interconnection at the 14 Northgate facilities, including self-build, third-party leasing, and fixed wireless alternatives. This correction significantly reduces the incremental profits attributable to Northgate's alleged conduct.
Second, Dr. Narasimhan employs more realistic demand projections that are calibrated to Ridgepoint's actual capacity and market position—including its existing 6,200 route-mile network, its workforce of approximately 1,450 employees, and its historical revenue growth trajectory—rather than the speculative demand assumptions that appear to underlie Dr. Kuo's model.
Third, Dr. Narasimhan applies an appropriate discount rate that reflects the business risk inherent in the projected cash flows, including the technological and competitive uncertainties characteristic of the enterprise telecommunications market.
Even at the high end of Dr. Narasimhan's range—$24 million pre-trebling, or $72 million trebled—the damages exposure remains well within the coverage provided by Northgate's directors' and officers' / entity liability insurance tower. The primary policy, issued by Clarendon Mutual Insurance Ltd., provides a per-occurrence limit of $50 million with a $10 million self-insured retention ("SIR"). The excess tower consists of $30 million from Avalon Specialty Underwriters and $20 million from Pinnacle Re Ltd., in addition to the $50 million Clarendon primary layer, for a total tower of $150 million. At $72 million trebled (the high end of the realistic range), the exposure would be manageable within the insurance program, subject to the coverage issues discussed in Section IX.B below.
D. Preliminary Daubert Vulnerability — Damages
Dr. Kuo's damages opinion presents a strong candidate for exclusion under Daubert on reliability grounds. If Dr. Kuo cannot tie his demand projections to reliable data—including historical data on Ridgepoint's actual sales trajectory, its competitive win rates, and its capacity to serve incremental customers—his damages opinion may fail the reliability prong of Daubert as speculative and untethered from the facts of the case. Courts have excluded lost-profits models in antitrust cases where the expert's projections were based on unsupported assumptions about market capture, customer acquisition, or revenue growth, rather than on empirical evidence.
Particular focus should be placed on the following issues in challenging the reliability of Dr. Kuo's damages model: (a) whether Dr. Kuo's demand projections account for Ridgepoint's own capacity constraints, including its workforce, its existing infrastructure, and its capital availability for incremental deployment; (b) whether the model accounts for competitive alternatives available to Ridgepoint, including self-build, third-party leasing, and fixed wireless; and (c) whether the model properly treats the holdover arrangement at the three existing northern Virginia colocation spaces. With respect to the holdover arrangement, Ridgepoint currently occupies three colocation spaces in Northern Virginia under a month-to-month holdover at 120% of the prior rate under the expired Master Interconnection Agreement ("MIA"), i.e., $14,400 per month per facility (up from the prior $12,000 per month MIA rate), yielding an aggregate holdover premium of approximately $86,400 per year across the three facilities. The existence of this holdover arrangement—which provides Ridgepoint with continued, albeit more expensive, access to a portion of Northgate's infrastructure—must be accounted for in any honest damages model and tends to reduce the incremental profits lost as a result of Northgate's alleged conduct.
VII. Coordination with Defendant's Experts
A. Dr. Priya Narasimhan / Ellsworth Economic Consulting LLC
Address: 1455 Pennsylvania Avenue NW, Suite 850, Washington, D.C. 20004
Role: Dr. Narasimhan has been retained to provide expert testimony and consulting support on market definition analysis, competitive effects modeling, and damages rebuttal in connection with Ridgepoint's antitrust claims. She is Northgate's principal economics expert and will serve as the primary rebuttal witness to Dr. Kuo.
Fees to Date: As of the date of this memorandum, Ellsworth Economic Consulting LLC has invoiced $412,000 in fees and expenses for work performed in connection with this engagement.
Next Steps: Dr. Narasimhan should be tasked with developing a full rebuttal to Dr. Kuo's market definition and damages opinions once discovery resumes following the lifting of the stay. Specifically, she should: (1) perform a rigorous SSNIP analysis demonstrating that a hypothetical monopolist controlling only last-mile enterprise fiber-optic transport services at 1 Gbps and above could not profitably impose a 5–10% price increase without losing sufficient customers to cable, FWA, and wholesale ethernet substitutes to make the increase unprofitable; (2) calculate corrected market shares under a broader product market definition, targeting an approximately 31% share for Northgate; (3) prepare a detailed lost-profits rebuttal calculating Ridgepoint's provable damages in the range of $18–$24 million pre-trebling, incorporating corrections for available alternative infrastructure, realistic demand projections, and an appropriate discount rate; and (4) address barriers to entry, demonstrating that the barriers cited by Ridgepoint are lower than Dr. Kuo suggests and that the FCC's regulatory framework provides meaningful pathways for competitive entry.
Dr. Narasimhan's background as the former Chief Economist of the FCC's Wireline Competition Bureau gives her particular credibility on telecommunications market definition issues. Her first-hand experience with the FCC's analysis of competitive conditions in broadband markets, including the FCC's periodic reports on broadband deployment and competition, provides a foundation of institutional knowledge that is directly relevant to the market definition questions at issue in this case. This regulatory experience contrasts favorably with Dr. Kuo's purely academic background and gives Dr. Narasimhan a significant credibility advantage on questions relating to the competitive dynamics of the telecommunications industry and the interaction between antitrust enforcement and FCC regulation. We should be prepared to highlight this contrast in our expert disclosure, in any Daubert briefing, and at trial.
We should also provide Dr. Narasimhan with all available data on competitive alternatives—cable, FWA, and wholesale ethernet—in the corridor, including publicly available deployment data, FCC Form 477 filings, and any data obtainable from Northgate's own records regarding competitive conditions in its service territory.
B. Dr. Anton Berger / Torrence Policy Group LLC
Address: 7925 Jones Branch Drive, Suite 510, McLean, VA 22102
Role: Dr. Berger has been retained as Northgate's regulatory expert for the FCC proceeding (Docket No. WC-23-0042, presided over by Administrative Law Judge Robert Fenwick). Dr. Berger is a former Deputy Bureau Chief of the FCC's Wireline Competition Bureau and brings extensive experience with the regulatory framework governing interconnection obligations under Sections 251 and 252 of the Telecommunications Act of 1996.
Fees to Date: As of the date of this memorandum, Torrence Policy Group LLC has invoiced $187,500 in fees and expenses for work performed in connection with this engagement.
Relevance to Dr. Kuo Analysis: Although Dr. Berger's primary role is as the regulatory expert in the FCC proceeding, his opinions are directly relevant to the analysis of Dr. Kuo's market definition and monopoly power opinions in the antitrust litigation. Specifically, Dr. Berger can opine on the regulatory framework governing interconnection under Sections 251 and 252, including the obligations of incumbent carriers to provide interconnection and the remedies available to competitive carriers through the FCC's regulatory processes. This testimony is relevant because the existence of a comprehensive regulatory remedy for the alleged conduct undermines the premise of Ridgepoint's antitrust claim under the Trinko framework. If the FCC's regulatory regime provides an adequate mechanism for addressing Northgate's interconnection practices, then the refusal to extend interconnection access beyond the terms of the WAP does not constitute an antitrust injury cognizable under Section 2 of the Sherman Act. Dr. Berger's regulatory expertise thus complements Dr. Narasimhan's economic analysis by providing the institutional and legal context that supports Northgate's defense that this matter belongs in the FCC rather than in federal court.
We should coordinate closely with Dr. Berger to ensure that his regulatory analysis is consistent with and complementary to Dr. Narasimhan's economic analysis, particularly on questions relating to barriers to entry, the availability of regulatory remedies, and the competitive significance of Sections 251 and 252 in the enterprise fiber market.
VIII. Discovery Priorities and Daubert Strategy
A. Discovery Requests Targeting Dr. Kuo
Upon the lifting of the current stay, we should promptly serve discovery requests tailored to obtain the full factual and methodological basis for Dr. Kuo's opinions. The following categories of discovery should be prioritized:
1. Documents relied upon for opinions. All documents, data, and other materials relied upon by Dr. Kuo in forming his opinions, including the data sources for his market share calculations (FCC Form 477 data, proprietary databases, customer surveys, industry reports, or any other sources).
2. Prior expert reports, depositions, and testimony. Copies of all expert reports, deposition transcripts, and trial testimony provided by Dr. Kuo in prior matters, in any jurisdiction, over the preceding ten years. These materials are essential for evaluating the consistency of his methodology across engagements and for identifying any instances in which his opinions were subject to judicial criticism, limitation, or exclusion.
3. Complete CV and publications. Dr. Kuo's complete and current curriculum vitae, including a list of all publications (peer-reviewed and otherwise), all speaking engagements, and all consulting engagements for the preceding ten years.
4. Compensation history. A complete accounting of Dr. Kuo's compensation for expert work over the preceding five years, including hourly rates, total fees earned per engagement, and any fee arrangements that are contingent in whole or in part on the outcome of the matter.
5. Communications with retaining counsel. All communications between Dr. Kuo and Hargrove, Winslow & Burke LLP and/or Ridgepoint Communications Inc. regarding the scope of his engagement, the opinions he was asked to provide, and any guidance or direction he received regarding the definition of the relevant market or the methodology for calculating damages. While we recognize that certain attorney-client communications may be privileged, communications that go to the assumptions, data, or methodology underlying Dr. Kuo's opinions are discoverable under Federal Rule of Civil Procedure 26(b)(4) as amended.
6. Workpapers, models, and spreadsheets. All workpapers, economic models, spreadsheets, databases, and other electronic files underlying the $127 million damages figure, the 68% market share calculation, and the product and geographic market definitions. These materials should include all inputs, assumptions, intermediate calculations, and sensitivity analyses, as well as any drafts of Dr. Kuo's expert report or preliminary analysis.
We note that discovery is currently stayed pursuant to Judge Wentworth's March 14, 2023 order. These discovery requests should be prepared in final draft form so that they may be served immediately upon the lifting of the stay, without delay.
B. Daubert Motion Strategy
Based on our preliminary analysis, we believe there are strong grounds for a Daubert challenge to Dr. Kuo's opinions on both the market definition and damages fronts. The Daubert motion should advance three principal arguments:
1. Product market definition is unreliable. Dr. Kuo's product market definition should be excluded because it fails to apply the SSNIP/hypothetical monopolist test—the accepted standard methodology for defining relevant antitrust markets—and because it arbitrarily excludes competitive alternatives (cable, FWA, and wholesale ethernet) that exert real-world competitive pressure on Northgate's enterprise fiber services. An expert opinion on market definition that is not grounded in a rigorous application of the hypothetical monopolist test does not satisfy the reliability requirements of Daubert and Federal Rule of Evidence 702.
2. Market share calculation rests on a flawed denominator and unreliable data. Dr. Kuo's 68% market share figure is the product of an artificially narrow product market that excludes competitive alternatives from the denominator. Because the denominator is unreliable—as it reflects the deficient product market definition—the resulting market share figure is also unreliable. Additionally, to the extent Dr. Kuo's data sources are incomplete, outdated, or otherwise unreliable, the market share calculation fails on independent grounds.
3. Damages model is speculative and untethered. Dr. Kuo's $127 million lost-profits estimate relies on demand projections that are speculative and unsupported by Ridgepoint's actual commercial capacity and historical performance. The model fails to account for available mitigation opportunities and alternative infrastructure, employs a projection period that introduces substantial uncertainty in a rapidly evolving technology market, and may utilize an inappropriately low discount rate. Speculative and untethered lost-profits models have been excluded by courts in antitrust cases, and Dr. Kuo's model appears to fall squarely within this category.
Timeline. The Daubert motion should be filed after expert discovery closes, which will occur following the lifting of the stay and the completion of expert depositions. We should coordinate the timing of the Daubert motion with our renewed motion to dismiss (which was denied without prejudice on March 14, 2023) and any potential motion for summary judgment, to maximize the strategic impact of each motion and to create multiple paths to resolution of the liability and damages issues.
Pre-Trial vs. In Limine. We should also consider whether to file a pre-trial Daubert motion—seeking exclusion of Dr. Kuo's testimony before trial—or to reserve our Daubert challenges for cross-examination at deposition and a motion in limine filed closer to trial. In general, a pre-trial Daubert motion is preferable because, if successful, it may effectively eliminate Ridgepoint's ability to prove one or more essential elements of its claim, potentially setting the stage for summary judgment. However, if the court denies the pre-trial motion or defers ruling to trial, we must be prepared to pursue the same challenges through in limine motions and vigorous cross-examination. We recommend pursuing both tracks: filing a pre-trial Daubert motion while simultaneously preparing for the possibility that the challenges will need to be renewed at the in limine and trial stages.
C. Deposition Preparation
The deposition of Dr. Kuo will be a critical event in this litigation and should be carefully planned and executed. We propose the following deposition topics, which are designed to develop the factual record needed to support our Daubert motion and to test the reliability and credibility of Dr. Kuo's opinions:
• Market definition methodology. The specific methodology Dr. Kuo employed to define the product and geographic markets, including whether he performed a SSNIP/hypothetical monopolist test and, if so, the data, assumptions, parameters, and results of that test.
• SSNIP test specifics. If a SSNIP test was performed, the details of the test—including the price increase modeled, the time horizon, the data sources used to estimate customer switching behavior, and the sensitivity of the results to changes in key assumptions. If a SSNIP test was not performed, the reasons for its omission and the alternative methodology employed.
• Data sources for market share. The specific data sources relied upon for the 68% market share figure, including whether Dr. Kuo relied on FCC Form 477 data, proprietary databases, customer surveys, or other sources; the time period covered by the data; and any adjustments or correcti