, consumption/savings, and portfolio selection. For a lump-sum investment payoff and an agent with a sufficiently strong … precautionary savings motive, an increase in volatility can accelerate investment, contrary to the standard real options analysis …. When the agent can trade the market portfolio to partially hedge against investment risk, the systematic volatility is …

We study how investors' preferences for robustness influence corporate investment, financing, and compensation … ambiguity aversion lowers Tobin's q; the average investment, and investment volatility. The entrepreneur values the project at …

the model, firms are heterogeneous in productivity and make investment and financing decisions subject to capital … are unexpected and permanent, dividend payments, equity issuance, and aggregate investment rise immediately. By contrast …, when these tax cuts are unexpected and temporary, aggregate investment falls in the short run. This fall allows firms to …