Estimation of relative risk aversion across time

This article examines relative risk aversion in the framework of a three-moment asset pricing model that accounts for skewness. Accounting for skewness in calculating risk aversion gives a more accurate series of estimates of risk aversion and helps to reconcile the wide disparity in risk coefficients found in past literature. Risk aversion coefficients are calculated from 1926 to 2014 using stock market returns. This procedure results in a time series of data that can be related to other variables such as real interest rates and changes in demand for various asset classes.     

TEXTBOOK INCONSISTENCIES IN GRAPHING VALUATION EQUATIONS: A FURTHER NOTE

In this note, the authors demonstrate that if a firm's leverage ratio is measured by debt-to-total value (debt-to-equity) in the pure capital structure rearrangement framework implicit in research reported by Modigliani and Miller (e.g., debt-to-equity exchanges), the market value of levered equity will be a concave (convex) function, and the market value of debt will be a convex (concave) function. These nonlinearities exist even without bankruptcy costs.     

REGULATORY INFLUENCES ON PORTFOLIO PERFORMANCE: SHORT SELLING AND REGULATION T

Several models are developed to examine the portfolio effect of short selling. Three things are demonstrated in this study. First, that for many assets, short selling is a useful strategy for reducing risk when constructing mean-variance efficient portfolios. Second, Regulation T can be used in combination with short selling to further improve expected portfolio performance. Third, the performance of the suggested models is superior to previously suggested allocation models. Ex ante and ex post tests are conducted to arrive at the above conclusions.     

Real Options Analysis for “Green Trading”: The Case of Greenhouse Gases

To address the issue of reducing emissions of greenhouse gases, organizations are involved with emergent markets for trading emission permits. Investment in equipment that reduces emissions may generate emission credits for sale in the market. This article applies real options analysis to actual case study information from British Petroleum-Amoco of a particular project that would generate emissions credits. We conclude that unless permits have a faster price rise than is generally anticipated, certain projects are not economically feasible. The policy implication is that planners may need to set more stringent regulations to bring about their desired result. Additionally, real options analysis in this market based regulatory policy is an especially important tool for the energy industry, which is disproportionately impacted by greenhouse gases policies.