We explicitly solve the pricing problem for perpetual American puts and calls, and provide an efficient semi-explicit pricing procedure for options with finite time horizon. Contrary to the standard approach, which uses the price process as a primitive, we model the price process as the expected...

The classical Quadratic Programming (QP) formulation of the well-known portfolio selection problem has traditionally been regarded as cumbersome and time consuming. This paper formulates two additional models, (i) maximin, and (ii) minimization of mean absolute deviation. Data from 67 securities...

It has been viewed as an unsolved puzzle that only for a small number of firms a significant impact of foreign exchange rate risk on firm value could be detected empirically. This paper investigates whether the results of previous studies can be explained by the fact that only the linear...

With constrained portfolios, contingent claims do not generally have a unique price, for which there are no arbitrage opportunities. We generalize earlier results of El Karoui and Quenez (1995) and Cvitanic and Karatzas (1993) by showing that there is an interval of no-arbitrage prices, when...

Many questions about institutional trading behavior can only be answered if one can track institutional equity ownership continuously, yet institutional ownership data are only available on quarterly reporting dates. We infer institutional trading behavior from the “tape”, the Transactions...

We analyze investments in gas fired power plants under stochastic electricity and gas prices. We use a real options approach, taking into account the economic information in futures and forward prices. A simple but realistic two-factor model is used for price process, enabling analysis of the...

With a constant new stream of financial services coming to the market, each often more exotic and complicated than the last, the financial services industry, which includes commodity derivatives exchanges, brokerage houses and banks providing price risk reduction services (the so-called hedging...

In practice, all option strategies are decided in advance, given the investor’s belief of the stock price. In this paper, instead of deciding in advance the most appropriate hedging option strategy, an LP problem is formulated, by considering all significant Greek parameters of the...

We present a new method, inspired by the bootstrap, whose goal it is to determine the quality and reliability of a neural network predictor. Our method leads to more robust forecasting along with a large amount of statistical information on forecast performance that we exploit. We exhibit the...

Using annual and quarterly data since 1952, we estimate a fundamentals- based empirical model for the earning-price ratio of US stocks. The key fundamental-variable is a time-varying discount rate, decomposed into a time-varying measure for the real interest rate and the equity risk premium....