Trade-off models commonly invoke financial transaction costs in order to explain observed leverage fluctuations. This paper offers an alternative explanation based on real options. The model is frictionless on the financing side but incorporates irreversibility and fixed costs of investment....

We analyze debt choice in light of taxes and moral hazard. The model features an infinite sequence of nonzero-sum stochastic differential games between equity and debt. Closed-form expressions are derived for all contingent-claims. If equity can increase volatility without reducing asset drift,...