We consider a stochastic volatility model of the mean-reverting type to describe the evolution of a firm’s values instead of the classical approach by Merton with geometric Brownian motions. We develop an analytical expression for the default probability. Our simulation results indicate that...

We develop a firm valuation model with repeated expansion and contraction options to show operating profitability is a proxy for time-varying systematic risk. Relative to riskier assets, the proportionate value of contraction options increase as profitability falls, lowering the firm beta....

This study investigates the extent of surplus cash holdings and their influence on abnormal returns in initial public offerings of stock in Tehran Stock Exchange. The 101 companies during the period 2003 to 2012 were selected. Selective approach to testing hypotheses, examining cross-sectional...

We propose a risk-based firm-type explanation on why stocks of firms with high relative short interest (RSI) have lower future returns. We argue that these firms have negative alphas because they are a hedge against expected aggregate volatility risk. Consistent with this argument, we show that...

The paper explains why firms with high dispersion of analyst forecasts earn low future returns. These firms beat the CAPM in periods of increasing aggregate volatility and thereby provide a hedge against aggregate volatility risk. The aggregate volatility risk factor can explain the abnormal...

Because levered equity is an option on the firm, variations in asset idiosyncratic risk (ivol) induces a negative relationship between equity ivol and expected returns. We show that the effect is caused by the nonlinear payoff of equity and the law of one price, and is present in all but...

This study uses a unique natural experiment to contribute to the long-running debate as to whether the demand curves for stocks slope downward. The U.S. Treasury sold 5.27 billion shares of Citigroup's common stock during trading hours in April 26, 2010, to December 6, 2010. Using a geometric...

Currency total return swaps (CTRS) are hybrid derivatives instruments that allow to simultaneously hedge against credit and currency risks. We develop a structural credit risk model to evaluate CTRS premia. Empirical test on a sample of 23,005 price observations from 59 underlying issuers yields...

The relationships between crude and product prices are crucial throughout oil markets and especially so within the refining industry, where they define the refinery margin between cost of inputs (crudes) and value of outputs (products). The oil market is global but regional factors are also...

Let us consider a portfolio made by a risky asset and cash. Any (individual) investor in such a portfolio is faced with two problems. She may ask about the possible returns whenever the asset relative change is expected to vary inside a given interval. Conversely, she might lead to determine the...