This episode discusses lending platforms on blockchains. Thomas Rivera (McGill University) and Quentin Vandeweyer (University of Chicago) explain that lending platforms generate sub-optimal welfare due to under-utilization of funds that are lent to the platform. To provide more context, lending platforms are specified in such a way that the level of borrowing (relative to lending) necessarily fluctuates with market conditions, resulting in instances where borrowing is significantly below lending. Importantly, when borrowing is significantly below lending, the total interest accrued from borrowers (relative to lending volume) is necessarily low, yielding low interest rates for lenders and thereby discouraging lending. Potential improvements for lending platforms are discussed.

Paper: Equilibrium in a DeFi Lending Market