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Global Multidisciplinary Journal

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From Payment Rails to Market Access: Low-Latency Digital Infrastructures and Retail Equity Participation

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Jeroen Willem de Vries 1 ,
4 University of Cologne, Germany

Abstract

The accelerated convergence of digital payment infrastructures and retail-oriented financial markets represents one of the most consequential transformations in contemporary financial systems. Over the past decade, innovations in low-latency web application programming interfaces, real-time payment rails, cloud-native backend architectures, and asynchronous processing paradigms have fundamentally altered how retail investors access, perceive, and participate in stock markets. These technological shifts intersect with behavioral finance, regulatory frameworks, and market microstructure dynamics, producing complex outcomes that extend far beyond transactional convenience. This research article develops a comprehensive theoretical and empirical synthesis of how low-latency digital payment systems shape retail stock market participation, liquidity, and investor confidence, with particular emphasis on high-transaction environments. Drawing strictly on the provided scholarly and technical literature, the study integrates insights from financial inclusion research, fintech adoption studies, backend systems engineering, and AI-driven observability and security frameworks. The article positions low-latency web APIs as a foundational but under-theorized infrastructural layer that mediates the relationship between digital payments and market engagement, building on recent benchmarking and design analyses of high-transaction systems (Valiveti, 2025). Methodologically, the study adopts a qualitative-analytical synthesis approach, interpreting findings across heterogeneous domains to construct a unified explanatory framework. The results indicate that payment system latency, reliability, and architectural scalability exert indirect yet powerful effects on investor behavior by influencing perceived transaction costs, temporal risk, trust, and platform usability. The discussion extends these findings by situating them within broader debates on financial democratization, regulatory asymmetry, and technological determinism, while also addressing limitations inherent in cross-domain synthesis. Ultimately, the article contributes a holistic perspective that bridges software architecture and financial economics, arguing that low-latency payment infrastructures are not merely technical optimizations but socio-technical enablers of modern equity market participation.

 

Keywords

Digital payment systems, Low-latency web APIs, Retail investor behavior, Stock market participation

References

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How to Cite

Jeroen Willem de Vries. (2026). From Payment Rails to Market Access: Low-Latency Digital Infrastructures and Retail Equity Participation. Global Multidisciplinary Journal, 5(01), 62-68. https://www.grpublishing.org/journals/index.php/gmj/article/view/298

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