Demand and consumer surplus in the payday-loan market: Evidence from British Columbia

Tim Zhang and Amity Quinn

Papers from arXiv.org

Abstract: This study examines how interest rate caps affect the demand for payday loans, using aggregate data from British Columbia (2012--2019) during which the province's maximum fee was reduced from \$23 to \$17 and then to \$15 per \$100 borrowed. Estimating a linear demand function via OLS, we find that lowering interest rate caps significantly increases loan demand. We estimate that the \$8 decrease, from \$23 to \$15 per \$100, raised annual consumer surplus by roughly \$28.6 million (2012 CAD). A further reduction to \$14, starting in January 2025, would add another \$3.9 million per year. These results suggest that stricter interest rate caps can yield substantial consumer welfare gains.

Date: 2025-09, Revised 2025-09
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