Sezzle诉Shopify：Shopify被认定具有垄断权力 案件进入实质审理

This article tracks the latest developments in a major new antitrust case involving the U.S. e-commerce sector, with key takeaways summarized below:

1. Case background: U.S.-based buy now, pay later (BNPL) platform Sezzle has filed a lawsuit against leading independent e-commerce site builder Shopify alleging anticompetitive monopolistic conduct. After Shopify launched its own in-house BNPL service, it imposed a series of barriers to block third-party BNPL providers.

2. Latest update: A U.S. court has ruled in favor of Sezzle on its core antitrust allegations, confirming that Shopify holds monopoly power in the relevant market. The case will now proceed to a full trial on the merits.

3. The court has upheld Sezzle’s claims that two specific Shopify practices—redirecting users away from third-party services and charging extra fees on third-party BNPL transactions—qualify as plausible anticompetitive conduct. Only a small subset of Sezzle’s tying claims were dismissed. The ongoing case’s final ruling is expected to reshape the global independent site payment industry.

This case offers key takeaways for brands that operate cross-border independent stores and use BNPL payment solutions:

1. Channel cost considerations: As the leading independent site platform, Shopify currently charges brands an extra 1-2% fee per transaction for using third-party BNPL services, which directly increases operational costs. Brands should factor this additional cost into their budgeting when planning their payment channel strategy.

2. Impact on conversion: By hiding third-party payment options and forcing users to redirect to its own payment service, Shopify reduces conversion rates for third-party BNPL options, dragging down a brand’s overall checkout conversion.

3. Future outlook: BNPL has become a mainstream conversion-driving payment method for e-commerce in Europe and North America. If Sezzle ultimately prevails, brands will gain access to a wider range of payment options, and payment costs are likely to decline over the long term. Brands should monitor the case’s progress closely to adjust their strategies accordingly.

This case provides clear risk warnings and opportunity insights for sellers who operate independent stores on Shopify:

1. Current operational risks: Sellers who use third-party BNPL tools like Sezzle not only pay an extra 1-2% fee per transaction, but also face issues including hidden payment options, missing order numbers that complicate reconciliation, and restricted core functionality. All of these directly raise operating costs and lower payment conversion.

2. Future opportunities: The court has already confirmed Shopify’s monopoly power in the relevant market, and the core anticompetitive claims will proceed to a full trial. If Sezzle wins, Shopify’s current unfair rules will likely be revised, giving sellers fairer access to more payment options and potentially reducing their payment costs.

3. Recommended actions: Sellers should proactively evaluate the costs and conversion performance of different BNPL tools, prepare alternative payment options in advance, and adjust their payment strategy as the case develops.

This case offers important insights for factories building cross-border e-commerce businesses and developing their own independent store channels, particularly amid their digital transformation:

1. Independent store risk warning: Many export-focused factories currently rely on Shopify to build their independent stores. This case confirms that Shopify holds a dominant monopoly position in the U.S. drag-and-drop e-commerce platform market, with a market share between 70% and 95%. The platform prioritizes its own in-house services and suppresses third-party providers, so factories should be alert to the extra costs and operational risks created by the platform’s biased rules.

2. New business opportunities: BNPL is an effective tool to boost conversion among European and American consumers, helping factories increase checkout rates on their independent stores. If the case ultimately breaks the platform’s monopoly, third-party BNPL providers will operate in a far fairer competitive environment. This will allow factories to access lower-cost, better user-experience payment services, supporting the overseas growth of their owned brands.

3. Transformation takeaway: Factories should avoid over-reliance on a single large platform when building out their digital e-commerce presence, and prepare alternative strategies in advance to mitigate risks from unexpected platform rule changes.

This case clarifies the current industry landscape, core pain points and future opportunities for third-party e-commerce service providers, especially BNPL payment providers:

1. Current industry reality: Leading e-commerce site building platforms have already achieved absolute monopoly, with market shares as high as 95%. Once a platform launches its own competing service, it systematically suppresses third-party providers using its platform rule-making power. This is the core pain point for any third-party provider seeking to access major platform ecosystems.

2. Positive industry development: The recent court ruling has upheld the core antitrust claims of third-party service providers, confirming that Shopify’s practices—forcing user redirection and imposing extra punitive fees—qualify as plausible anticompetitive conduct. If Sezzle prevails, the entire industry will gain access to a far fairer competitive environment.

3. Strategic business direction: Merchants currently on the platform already face challenges including higher extra costs and cumbersome reconciliation. Third-party providers can develop targeted solutions to address these merchant pain points—such as dedicated reconciliation tools or cost subsidies—to improve their value proposition for merchants.

This case offers important warnings for all platform businesses regarding operations management and antitrust risk mitigation:

1. Clear antitrust red lines: The court has made clear that conduct enabled by monopoly power—including hiding competing payment options, forcing users to redirect to in-house services, charging extra punitive fees to third-party competitors, and disabling core functions of competing services—can be ruled anticompetitive and expose platforms to antitrust litigation risk.

2. Guidance for ecosystem operations adjustment: When platforms develop their own in-house services within their ecosystems, they must maintain neutrality toward third-party providers. Platforms cannot use their rule-making power to suppress competitors, as this crosses the antitrust line.

3. Risk mitigation guidance: The court has confirmed that a market share above 70% is sufficient to support a finding of monopoly power. Leading platforms therefore need to strictly regulate their competitive conduct, balance the relationship between their in-house business and third-party providers, and avoid anticompetitive behavior enabled by market power to mitigate legal risk.

This case is a representative new example of antitrust enforcement in the global platform economy, offering high value for both industrial and antitrust research:

1. New industrial trends: Platforms leveraging their ecosystem advantages to expand into in-house services and squeeze the living space of third-party providers has become a common new issue in supposedly open platform ecosystems, and this case is a typical example of this problem.

2. New material for antitrust research: This case provides clear reference for monopoly认定. The court ruled Shopify holds monopoly power based on its 70%-95% market share, and confirmed that practices including hiding competitor options, forced redirection, and extra fees can be classified as anticompetitive conduct. This provides a new precedent for judicial and industrial research on platform economy antitrust.

3. New research topics for business model studies: The case also raises new research questions: how to balance a platform’s own business growth with fair competition within its open ecosystem, and how to regulate platform competitive conduct. This opens up new directions for future research on business models and industrial regulation.