What determined the value of South African assets after the unbanning of the African National Congress (ANC) and the release of Nelson Mandela? Economic or political events? This paper employs a dynamic version of the APT model for the period from 1991 to 1998 to determine whether the increase...

Recognizing the problems of estimation error in computing risk premia via arbitrage pricing, this paper provides a Bayesian methodology for estimating factor risk premia and hence equity risk premia for both traded and non-traded factors. Some illustrative calculations based on UK equity are...

Taking a portfolio perspective on option pricing and hedging, we show that within the standard Black-Scholes-Merton framework large portfolios of options can be hedged without risk in discrete time. The nature of the hedge portfolio in the limit of large portfolio size is substantially different...