This paper studies the conditions under which new equipment may endogenously occur. To this end, we construct an endogenous growth multisectoral model with a preeminent new equipment sector. Technological progress is embodied: New machines can only be run on the most recent generations of...

This paper presents techniques to solve for optimal simple monetary policy rules in rational expectations models. Both pre-commitment and discretionary solutions are considered. The techniques described are notable for the flexibility they provide over the structure of the policy rule being...

We consider optimal fishery management under the assumption of increasing returns that is supported by previous empirical evidence. We improve the tractability and realism of the previous approaches by introducing flow adjustment costs on changes in harvest rate. Our framework is the first to...

Long-term observers of urban communities know that the housing quality distributions of communities and the changes of these distributions over time encompass not one but a variety of patterns. The equilibrium outcome derived from the housing market literature explains one pattern of change....

In this paper we study a capital accumulation model in an optimal control theoretic framework, where the capital stock and the investment rate are modeled as state variables and the change in the investment rate as control. Adjustment costs are introduced for both investment rate and the change...

A wealth of literature, reviewed in the first section of this paper, is concerned with the occurence of multiple equilibria in economic optimization models and with the resulting history dependence of optimal solutions. Typically, the existence of multiple equilibria is associated with market...

We discuss two optimization problems from economics. The first is a model of optimal investment and the second is a model of resource management. In both cases the time horizon is infinite and the optimal control variables are continuous. Typically, in these optimal control problems multiple...

In this paper, we examine techniques for the analytical and numerical solution of statedependent differential-difference equations. Such equations occur in the continuous time modelling of vintage capital growth models, which form a particularly important class of models in modern economic...

I ask whether differences in labor market performance between the US and Europe can be attributed to an interaction between employment protection legislation (EPL) and an acceleration in the rate of capital-embodied technical change associated with the advent of information technologies. I find...