Effective environmental policy should consider how the financiers of polluting firms behave. In our theoretical model describing the periods before and after policy implementation, loan spreads for firms participating in cap-and-trade programs are a function of the costs of compliance, the...

We show that financial risk-taking originates in preindustrial ancestral population diversity. We use data on immigrants residing in the United States and show that controlling for all known determinants of portfolio decisions, diversity positively affects stock market participation and asset...