In this paper we make use of option pricing theory to infer about historical equity premiums. This we do by comparing the prices of an American perpetual put option computed using two different models: The first is the standard one with continuous, zero expectation, Gaussian noise, the second is...

We examine asset prices in a representative-agent model of general equilibrium. Assuming only that individuals are risk averse, we determine conditions on the changes in asset risk that are both necessary and sufficient for the asset price to fall. We show that these conditions neither imply,...

This paper builds a real-options model of the firm with stochastic volatility to shed new light on the value premium, financial distress, and credit spread puzzles. Since the equity of growth firms and financially distressed firms have embedded options, such securities hedge against volatility...

Share prices fluctuate far more than dividends. In contemporary lit- erature, this excess volatility is usually discussed involving the Camp- bell-Shiller present value identity. In our view, it is more appropriate to model future dividends and prices explicitly as random variables. We refer to...