How well do people share risk? Standard risk-sharing regressions assume that any variation in households’ risk preferences is uncorrelated with variation in the cyclicality of income. I combine administrative and survey data to show that this assumption is questionable: Risk-tolerant workers hold jobs in which earnings carry more aggregate risk. The correlation makes risk-sharing regressions in the previous literature too pessimistic. I derive techniques that eliminate the bias, apply them to U.S. data, and find that the effect of idiosyncratic income shocks on consumption is practically small and statistically difficult to distinguish from zero.

We assess changing patterns of migration and their association with labor outcomes for the 1979 and 1997 cohorts of the NLSY. Although the long-distance migration rate is lower in the 1997 cohort, we find that migration fell mostly because return migration fell. We uncover little difference in patterns of selection into migration in the two cohorts, little difference in correlation between migration and labor market outcomes, and little evidence in either cohort of a positive labor market return to migration. Our findings suggest that reductions in geographic mobility do not explain the poor recent labor market performance of young adults.

The magnitude of and heterogeneity in systematic earnings risk has important implications for various theories in macro, labor, and financial economics. Using administrative data, we document how the aggregate risk exposure of individual earnings to GDP and stock returns varies across gender, age, the worker's earnings level, and industry. Aggregate risk exposure is U-shaped with respect to the earnings level. In the middle of the earnings distribution, aggregate risk exposure is higher for males, younger workers, and construction and durable manufacturing. At the top of the earnings distribution, aggregate risk exposure is higher for older workers and finance.