In this paper I study the optimal control path for a (capital or pollution) stock which accumulates time with a lag to its control. It is shown that the optimal control path is non-monotonic and cyclical in general, but it is monotonic if the objective function is additively separable in the...

This paper studies Krugman's (1991) core-periphery model and extends it to include environmental pollution. We present the first analytic proof that only an even spreading of the firms over both of the two regions or a complete agglomeration of all manufacturing firms in one region are possible...

We introduce a generalized theoretical approach to study imitation and subject it to rigorous experimental testing. In our theoretical analysis we find that the different predictions of previous imitation models are due to different informational assumptions, not to different behavioral rules....

This article shows how to construct a likelihood for a general class of censoring problems. This likelihood is proven to be valid, i.e. its maximiser is consistent and the respective root-n estimator is asymptotically efficient and normally distributed under regularity conditions. The method...

We analyze a dynamic and stochastic ecological-economic model of grazing management in semi-arid range lands. The non-equilibrium ecosystem is driven by stochastic precipitation. A risk averse farmer chooses a grazing management strategy under uncertainty such as to maximize expected utility...

Diese Schrift behandelt ordnungs- und institutionenökonomische Aspekte des Systemwandels im allgemeinen sowie die monetäre Transformation im besonderen. Das auf dem Washington Consensus beruhende wirtschaftspolitische Standardkonzept und dessen Theoriedefizite werden hinterfragt und um...

In this paper we present a two-period model where a left-wing and a right-wing political party are solely interested in the politics they pursue. We assume that voters are fully rational but show reciprocal behavior. By contrast, political parties are not motivated by reciprocity. We show that...

Our aim in this essay is to identify and analyze some of the difficulties with interdisciplinary integration of economic and ecological contributions to the study of biodiversity loss. We develop our analysis from a widely accepted definition of economics which is based on the concept of...

In this paper we consider the effect of ambiguity on the private provision of public goods. Equilibrium is shown to exist and be unique. We examine how provision of the public good changes as the size of the population increases. We show that when there is uncertainty there may be less...

The performance of market based environmental regulation is affected by patents and vice versa. This interaction is studied for a new type of innovation where new technologies reduce emissions of a specific pollutant but at the same time cause a new type of damage. A robust finding is that the...