This paper shows that the inverse image of the natural projection defines a ramified covering with finite layers. Finiteness of equilibria for regular two period production economies with uncertainty follows from this property.

Building on a class of transcendental preferences for luxury, explicit solutions for price taking behavior and exchange equilibrium are discussed, which share the analytical tractability of Cobb-Douglas models and display positive relevance, along the lines discussed by Freixas and Mas-Colell...

The relationship between our general equilibrium model with multi- member households and club models with multiple private goods is investigated. The main distinction in the definitions consists of the equilibrium concepts. As a rule, competitive equilibria among house- holds where no group of...

Since the beginnings of modern economics, economists sought to emulate the revolution in physics initiated by Newton's 'Principia' (1687). Concepts from mechanics have influenced economic models both in terms of methodology and content. The aim of this theoretical paper is to put forward a novel...

This paper explores the formation of cities through labour specialization, gains to trade, a fixed cost for the transportation network, imperfect competition between firms, and the commuting costs of consumers. The model uses a very general setting, allowing a multidimensional location space and...

In this paper we compare the classical general equilibrium framework of Smith and Marx with the neoclassical one of Arrow and Debreu, and find that these competing paradigms of equilibrium clash on a number of critical issues--efficiency, power, the role of markets, time, the nature of...

We construct a generalized model of finite change whereby exogenous shocks such as international trade or technological change, not only contract, but totally shut down production in some sectors. In such cases even in a competitive structure and in absolute contrast to the conventional wisdom,...

This paper attempts to give an idea about the upshot of a recessionary phase on the intermediation activity which is required for the survival of the informal fragment of a society. Informal part of the economy covers a large chunk of the total economic activities in any developing economy....

Este trabajo desarrolla un modelo en donde se endogenizan las actividades delictivas para estudiar los efectos de la desigualdad de oportunidadesy la movilidad social sobre la incidencia de dichas actividades. En particular, se plantea un modelo de equilibrio general derivado de la...

The relationship between our general equilibrium model with multi- member households and club models with multiple private goods is investigated. The main distinction in the definitions consists of the equilibrium concepts. As a rule, competitive equilibria among house- holds where no group of...