Productivity risk is pervasive in underdeveloped countries. This paper highlights a way in which underdevelopment exacerbates productivity risk. Productivity shocks cause larger changes in the wage when workers are poorer, less able to migrate, and more credit‐constrained because of such workers’ inelastic labor supply. This equilibrium wage effect hurts workers. In contrast, it acts as insurance for landowners. Agricultural wage data for 257 districts in India for 1956–87 are used to test the predictions, with rainfall as an instrument for agricultural productivity. In districts with fewer banks or higher migration costs, the wage is much more responsive to fluctuations in productivity.

Trade sanctions are often criticized as ineffective because they create incentives for evasion or as harmful to the target country's population. Loan sanctions, in contrast, could be self-enforcing and could protect the population from being saddled with “odious debt” run up by looting or repressive dictators. Governments could impose loan sanctions by instituting legal changes that prevent seizure of countries' assets for nonrepayment of debt incurred after sanctions were imposed. This would reduce creditors' incentives to lend to sanctioned regimes. Restricting sanctions to cover only loans made after the sanction was imposed would help avoid time-consistency problems.