This paper develops a subordinated stochastic process model for the asset price, where the directing process is identified as information. Motivated by recent empirical and theoretical work, we make use of the under-used market statistic of transaction count as a suitable proxy for the...

This paper links real investment policy to corporate risk management, endogenizing the costs of external financing. Previous literature finds investment efficiency linked to full hedging. In this model, a firm with proprietary information when deciding its investment in a valuable project, may...

We examine the relation between firm value and managerial incentives in a sample of 1,487 U.S. firms in 1992-1997, for which the separation of ownership and control is complete. Unlike previous studies, we employ a measure of relative performance which compares a firm’s actual...

In this paper we model the value of a firm based on its current earnings and cash balances. The value is modelled on the assumption that earnings follow a mean-reverting process. The effect of advertising on earnings is modelled, and the condition for optimal advertising derived. The value of...

This paper proves that the optimal exercise time for the holder of an American option depends upon the physical drift of the underlying asset and the utility of the option holder. We illustrate our results by applying them to several families of utility functions, namely the CARA, the HARA, and...

If the Black-Scholes model and its extensions were the discoveries of the 70s and 80s, then Value-at-risk (VaR) models are the darlings of the 90s. These models have many uses within an organisation; for example, a risk manager may use VaR to allocate trading limits, senior management for asset...

This paper uses clinical evidence to show how the German system of corporate control and governance is both more active and more hostile than has previously been suggested. It provides a complete breakdown of ownership and takeover defence patterns in German listed companies and finds highly...

In this paper we consider the problem of hedging options in the presence of costs in trading the underlying asset. This work is an asymptotic analysis of a stochastic control problem, as in Hodges & Neuberger (1989) and Davis, Panas & Zariphopoulou (1993) . We derive a simple expression for the...

In this paper we model the value to a firm of undertaking market research into a particular product opportunity. The way in which information about the potential of the project arrives and knowledge evolves during the life of the project is modeled using the theory of optimal filtering. The...

This paper evaluates relations between industrial activity and the structure of countries’ financial, ownership and legal systems. Using data on 27 industries in 14 OECD countries over the period 1970 to 1995, we evaluate whether the structure of countries’ systems is associated...