Common problems researchers identify · 01Mobile Payments Adoption Barriers
184 papers20.6% of this theme group
Researchers examine why users and merchants hesitate to adopt mobile payment solutions.
Mobile payment (125) · Payment (101) · Cash (23) · Mobile phone (16)
Determinants of Mobile Payments: An Empirical Analysis
Mobile Payments at the Retail Point of Sale in the United States: Prospects for Adoption
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Common problems researchers identify · 02Financial Crime Detection Challenges
169 papers18.9% of this theme group
Papers highlight difficulties in spotting money laundering and fraud with current analytic tools.
Money laundering (27) · Audit (15) · Compliance (17) · Financial fraud (8)
Graph Computing for Financial Crime and Fraud Detection: Trends, Challenges and Outlook
A Systematic Review of Machine Learning in Credit Card Fraud Detection Under Original Class Imbalance
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Common problems researchers identify · 03Inclusion and Regulation Tensions
158 papers17.7% of this theme group
Studies discuss how fintech expansion clashes with existing financial regulations and inclusion goals.
Financial services (95) · FinTech (57) · Financial inclusion (33) · Financial regulation (9)
FINANCIAL INCLUSION THROUGH TECHNOLOGY: A REVIEW OF TRENDS IN EMERGING MARKETS
Digital Banking and Fintech Disruption: A Systematic Review of Financial Innovation
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Common problems researchers identify · 04High‑Frequency Trading Market Impact
129 papers14.4% of this theme group
Works focus on the disruptive effects of algorithmic trading on market stability and fairness.
Algorithmic trading (55) · High-frequency trading (48) · Trading strategy (25) · Electronic trading (13)
High-Frequency Trading and Its Impact on Markets
High-Frequency Trading: <i>Implications for Markets,</i><i>Regulators, and Efficiency</i>
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Common problems researchers identify · 05Payment System Reform in Healthcare
114 papers12.8% of this theme group
Analyses address inefficiencies and policy gaps in healthcare reimbursement and payment structures.
Payment (111) · Payment system (52) · Health care (26) · Reimbursement (19)
Reforming the Primary Care Physician Payment System
Payment and Delivery-System Reform — The Next Phase
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Common problems researchers identify · 06Portfolio Optimization Uncertainty
96 papers10.8% of this theme group
Researchers question the reliability of modern portfolio theory under real‑world forecasting limits.
Portfolio (94) · Portfolio optimization (37) · Modern portfolio theory (26) · Diversification (17)
In Defense of Portfolio Optimization: What If We Can Forecast?
Risk minimization and portfolio diversification
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Common problems researchers identify · 07Insider Trading Legal Complexities
43 papers4.8% of this theme group
Papers explore the nuanced legal and ethical issues surrounding insider information misuse.
Insider trading (42) · Insider (17) · Alternative trading system (23) · Securities Exchange Act of 1934 (8)
Information, Privilege, Opportunity, and Insider Trading
The Law of Insider Trading: Legal Theories, Common Defenses, and Best Practices for Ensuring Compliance
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