Constantinides, George M.; Jackwerth, Jens Carsten; … - Fachbereich Wirtschaftswissenschaften, Universität Konstanz - 2011
We document that the leverage-adjusted returns on S&P 500 index call and put portfolios are decreasing in their strike-to-price ratio over 1986-2009, contrary to the prediction of the Black-Scholes-Merton model. We test a large number of plausible factor models in order to learn what drives the...