This article studies the importance of stock market literacy and trust for stock ownership decisions. We find that these two distinct channels simultaneously explain not only the probability of participation, but, conditional on participation, also explain the share of investment in stocks. Once we account for stock market literacy, sociability is no longer significant for participation; what matters is literacy rather than sociability. Further, we observe that economic shocks and future expectations are key behavioral characteristics that explain a household’s decision to invest in stocks. However, upon participation, a larger set of behavioral characteristics explains the level of stock investment.

This paper establishes a sizeable negative effect of poor mental health on individuals’ net worth. In a representative panel of U.S. households, we find that a one standard deviation (or four unit) increase in Kessler’s K6 psychological distress level decreases net worth by 13.2 percent and increases by 5 percent the baseline risk of being in deficit net worth, where levels of debt outstrip the value of assets. Survival analyses further show that psychological distress accelerates the entry into and prolongs the stay in deficit net worth states, as well as increasing the probability of re-entry into deficit. Using a Blinder-Oaxaca decomposition, we find that differences in level of savings, medical debt and labor income predominantly explain the lower net worth and higher likelihood of deficit net worth of individuals with high psychological distress. Our findings highlight the significant longer-term implications of mental health on the net worth of individuals.