This paper develops a two-sector model for a renewable natural resource based economy. Pareto efficient results show the optimal harvesting rate that allows for sustained long-run optimal growth, which is upper-bounded by the biological rate of reproduction. Regulation prevents from resource...

This paper examines the stationary equilibrium situation and the dynamic behavior of the main control variables of an economy where investment is subject to adjustment costs and the maintenance of deteriorated capital goods is considered expensive. The optimal intertemporal resources allocation...

This paper presents the private capital stock estimates for the 17 Spanish regions, for the 1964-1989 period and for the agriculture, industry, building and service sectors. The Perpetual Inventory Method, used in nearly all OCDE countries, is applied to this estimation, entailing a previous...

In this article we propose a method for solving a general class of four-dimension nonlinear modified Hamiltonian dynamic systems in closed form. This method may be used to study several intertemporal optimization problems sharing a common structure, which involves unbounded technological...

This paper provides the complete closed-form solution to the Lucas two-sector model of endogenous growth. We study the issues of existence, unique-ness, multiplicity, positivity, transitional dynamics and long-run growth, re-lated to the competitive equilibrium paths. We identify the parameter...

In this paper we propose a method for solving in closed form a general class of non-linear modified Hamiltonian dynamic systems (MHDS). This method may be used to analyze some intertemporal optimization problems With a predetermined structure involving unbounded technological constraints. The...

In this paper I propose a method for solving in closed form a general class of four-dimension non-linear modified Hamiltonian dynamic systems. This method may be used to study several intertemporal optimization problems with a predetermined structure, involving unbounded technological...

In this paper we revisit the dual approach to comparative statics in competitive markets, allowing for the essential results to arise from a comprehensive and unified framework. We study, for both the long-run and the short-run, the response of all the endogenous variables to price factor...

The competitive equilibrium in an endogenous growth model is not Pareto-optimal nor environmentally sustainable in presence of pollution externalities, even if costly abatement activities are allowed to be endogenously decided. In this paper we introduce the possibility of an ecological...

We examine the dimension reduction method and prove that it could be isleading if we try to get some insight tinto the dynamics of the original system from the dynamics of the transformed system alone. The reduced system seemingly may give rise to a continuum multiplicity of steady states when,...