Using a large panel data set containing detailed information on educational attainments as well as financial and socioeconomic variables for individual investors, we show that economists are more likely to hold stocks than otherwise identical investors. First, we consider the change in stockholdings associated with (i) completing an economics education and (ii) an economist moving into the household. Second, we model stock market participation using a probit model with unobserved individual heterogeneity. Third, instrumental variables estimation allows us to identify the causal effect of an economics education on stock market participation. Throughout, we focus explicitly on the effect of a change in educational status on the likelihood of holding stocks.