In the recent work of Dempster, Evstigneev and Taksar (2006) it has been shown that the von Neumann-Gale model of economic dynamics can serve as a convenient and natural framework for the analysis of questions of asset pricing and hedging under transaction costs. The present article focuses on a...

The paper examines a class of random dynamical systems related to the classical von Neumann and Gale models of economic dynamics. Such systems are defined in terms of multivalued operators in spaces of random vectors, possessing certain properties of convexity and homogeneity. We establish a...

This paper analyzes the independence of boards of directors as an optimally chosen, non-contractible behavior. A board behaves loyally to a CEO when it agrees to a negative NPV-pro ject, giving the CEO private benefits. While the CEO benefitsfrom competent directors because they help him make...

Modern portfolio theory regards the return of an asset as its upside, while volatilityis seen as its downside. This view is shared by the majority of investors who dislikevolatile markets. Recent results in financial mathematics, however, show thatvolatility is actually good, rather than bad,...

An agent shows loyalty to his manager by bearing personal costs to the superiors benefit. In return, the manager may offer various forms of rewards. If this exchange is not contractible, typically repeated interaction will be required to sustain it. Beyond loyalty, the manager is interested in...

Recent organizational theories suggest that there is a tradeoff between loyalty and competence. This paper tests several such theories in the context of public agencies. Prime ministers, chancellors, and kings alike need to secure the (efficient or inefficient) loyalty of their agencies, such as...

In recent years, tradeable permits (TP) have become widespread in use. One noteworthy point is that the international experience is rather small. Europe has only relatively recently begun to develop such programs. There is a wealth of resources available that comment on the rise of these...

We show that the volatility of a price process, which is usuallyregarded as an impediment to financial growth, can serve as an en-dogenous factor in its acceleration.

The paper examines a dynamic model of a financial market with endogenous asset prices determined by short run equilibrium of supply and demand. Assets pay dividends that are partially consumed and partially reinvested. The traders use fixed-mix investment strategies (portfolio rules),...

Von Neumann’s [60] model of an expanding economy, generalized by Gale [30],was one of the first models in Mathematical Economics that served as thebasis for a rich and interesting theory. This theory was developed for the mostpart in the 1950s and 1960s. Substantial contributions to it were...