Score contribution per author:
α: calibrated so average coauthorship-adjusted count equals average raw count
Individuals’ stock market participation depends on the risk-return trade-off they expect to achieve. We find that the expected economic benefits of investing are highly heterogeneous. We define the personal equity risk premium (PERP) as the difference between an individual's expectation of returns and personal opportunity cost of capital. Higher PERP is associated with greater stock market participation. Our results hold after we control for known factors, such as financial literacy, trust, and loss aversion, and are stronger for the level of stock investment. Disentangling PERP shows that both components help explain both stock market participation and the level of participation.