Our simple model features agents heterogeneous in skill and risk aversion, incomplete financial markets, and redistributive taxation. In equilibrium, agents become entrepreneurs if their skill is sufficiently high or risk aversion sufficiently low. Under heavier taxation, entrepreneurs are more...

This paper investigates the joint determination of two dimensions of a security: trading volume and return. In much of the existing literature, volume is modeled as being exogenously related to security returns. Our analysis evaluates the extent to which trading activity also depends on security...