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FINTECH ADOPTION AND MARKET EFFICIENCY: AN EMPIRICAL ANALYSIS OF INDIAN STOCK MARKET RESPONSES TO DIGITAL PAYMENT INNOVATIONS
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Published in July - December 2026 (Vol. 1, Issue 1, 2026)

Abstract
This study explores the connection between adoption of FinTech in the Indian Stock Markets and the efficiency of these markets using secondary data from the National Stock Exchange (NSE) and the Bombay Stock Exchange (BSE) for the period 2010-2025. It uses an event study approach and GARCH-MIDAS modelling to capture the reactions of the market in response to key policy announcements and digital payment adoption milestones from the FinTech industry. The findings show that there is a considerable positive abnormal return after the policy announcement of FinTech for all market capitalizations and sectors, but with varying impacts. The study builds on the existing body of literature regarding the relationship between FinTech and Financial Markets in Emerging Economies and provides empirical evidence of the impact of technological innovations on the efficiency of the financial market and investors' decision making in such markets in the Indian context.
References
- [1]Arner, D. W., Barberis, J., & Buckley, R. P. (2015). The evolution of Fintech: A new post-crisis paradigm? Georgetown Journal of International Law, 47(4), 1271-1319.
- [2]Barber, B. M., & Odean, T. (2013). The behavior of individual investors. In Handbook of the Economics of Finance, Elsevier, 2, 1533-1570).
- [3]Biais, B., & Foucault, T. (2014). HFT and market quality. Journal of Financial Economics, 112(3), 329-346.
- [4]Boehmer, E., Fong, K. Y. L., & Wu, J. (2018). International evidence on algorithmic trading and market quality. Journal of Financial Markets, 38, 1-23.
- [5]Chordia, T., Goyal, A., Lehmann, B. N., & Saar, G. (2014). High-frequency trading. Journal of Financial Markets, 17, 1-15.
- [6]Fama, E. F. (1970). Efficient capital markets: A review of theory and empirical work. Journal of Finance, 25(2), 383-417.
- [7]Frydman, C., & Saks, R. E. (2010). Executive compensation: A new view from a long-term perspective. Journal of Financial Economics, 96(2), 225-252.
- [8]Glosten, L. R., & Milgrom, P. R. (1985). Bid, ask and transaction prices in a specialist market with heterogeneously informed traders. Journal of Financial Economics, 14(1), 71-100.
- [9]Goldstein, I., Jiang, W., & Karolyi, G. A. (2019). To FinTech and beyond. Review of Financial Studies, 32(5), 1647-1661.
- [10]Grossman, S. J., & Stiglitz, J. E. (1980). On the impossibility of informationally efficient markets. American Economic Review, 70(3), 393-408.
- [11]Hendershott, T., Jones, C. M., & Menkveld, A. J. (2011). Does algorithmic trading improve liquidity? Journal of Finance, 66(1), 1-33.
- [12]Kahneman, D., & Tversky, A. (1979). Prospect theory: An analysis of decision under risk. Econometrica, 47(2), 263-291.
- [13]Kirilenko, A., Kyle, A. S., Samadi, M., & Tuzun, T. (2017). The flash crash: High-frequency trading in an electronic market. Journal of Finance, 72(3), 967-998.
- [14]Kyle, A. S. (1985). Continuous auctions and insider trading. Econometrica, 53(6), 1315-1335.
- [15]Liu, J., Wang, Y., & Zhao, X. (2021). Fintech innovation and stock market reactions: Evidence from China. Pacific-Basin Finance Journal, 67, 101557.
- [16]Lo, A. W. (2004). The adaptive markets hypothesis: Market efficiency from an evolutionary perspective. Journal of Portfolio Management, 30(5), 15-29.
- [17]Lo, A. W., & MacKinlay, A. C. (1988). Stock market prices do not follow random walks: Evidence from a simple specification test. Review of Financial Studies, 1(1), 41-66.
- [18]Madhavan, A. (2000). Market microstructure: A survey. Journal of Financial Markets, 3(3), 205-258.
- [19]NPCI. (2019). Unified Payments Interface (UPI) - Vision Document. National Payments Corporation of India.
- [20]PWC. (2020). India FinTech Report 2020. PricewaterhouseCoopers.
- [21]Schueffel, P. (2016). Taming the beast: A scientific definition of Fintech. Journal of Innovation Management, 4(4), 32-54.
- [22]Shiller, R. J. (2003). From efficient markets theory to behavioral finance. Journal of Economic Perspectives, 17(1), 83-104.
- [23]Venkatesh, V., Morris, M. G., Davis, G. B., & Davis, F. D. (2003). User acceptance of information technology: Toward a unified view. MIS Quarterly, 27(3), 425-478.
- [24]Wang, X., Zhang, C., & Zhang, L. (2022). Digital payments and stock market reactions: Evidence from partnership announcements. International Review of Economics & Finance, 81, 180-195.
Authors (2)
Puja Mondal
Adamas UniversityAdamas UniversityAdamas UniversityAdamas University
View all publications →Mainak Chakraborty
Adamas UniversityAdamas UniversityAdamas UniversityAdamas University
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How to Cite
Mondal, P., & Chakraborty, M. (2026). FINTECH ADOPTION AND MARKET EFFICIENCY: AN EMPIRICAL ANALYSIS OF INDIAN STOCK MARKET RESPONSES TO DIGITAL PAYMENT INNOVATIONS. ISB&M Journal of Business Issues & Research, 1(1), 28-41. https://isbmjbir.isbmk.ac.in/articles/ISBMJBIR110005
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