This article uses various micro data sets to study entrepreneurship. Consistent with the existence of capital constraints on potential entrepreneurs, the estimates imply that the probability of self-employment depends positively upon whether the individual ever received an inheritance or gift. When directly questioned in interview surveys, potential entrepreneurs say that raising capital is their principal problem. Consistent with our theoretical model's predictions, the self-employed report higher levels of job and life satisfaction than employees. Childhood psychological test scores, however, are not strongly correlated with later self-employment.

The paper develops an efficiency-wage model in which input prices affect the equilibrium rate of unemployment. We show that a simple framework based on only two prices (the real price of oil and the real rate of interest) is able to explain the main postwar movements in the rate of U.S. joblessness. The equations do well in forecasting unemployment many years out of sample, and provide evidence that the oil-price spike associated with Iraq's invasion of Kuwait appears to be a component of the “mystery” recession that followed.