The aim of this paper is to analyse the role of uncertainty in shaping the decisions of firms in the underground economy. Following the option value approach, we present a dynamic model which captures (i) the irreversibility of riallocation decisions from the underground sector to the legal...

We explore commons problems when agents have access to capital markets. The commons has a high intrinsic rate of return but its fruits cannot be secured by individual agents. Resources transferred to the capital market earn lower returns, but are secure. In a two period model, we assess the...

We study extinction in a commons problem in which agents have access to capital markets. When the commons grows more quickly than the interest rate, multiple equilibria are found for intermediate commons endowments. In one of these, extinction is hastened and welfare decreases in the endowment,...

We consider a small open Harris-Todaro (1970) economy complementing global exposure, informal labour training and the urban unemployment. Workers acquire skills through apprenticeship training in the urban informal sector. The informal employers are motivated to train the apprentices by the...

The purpose of this paper is to examine the Fields (1989) proposition1 in a multi sector general equilibrium model with perfect and imperfect capital mobility2. The effects of different fiscal policies on the equilibrium rate of urban unemployment are also examined here3. The main findings are...

We consider a three sector model of informal sector which assumes efficiency wage hypothesis and explains the simultaneous existence of informal sector and urban unemployment. We also study the effects of subsidy policies given to different sectors and the effects of change in capital stock on...

:- We consider a small open Harris-Todaro economy with a rural foreign enclave and urban informal sector. We introduce consumption- efficiency relation to explain the simultaneous existence of informal sector and urban unemployment. Different types of immobility and mobility of capital are...

This paper considers a two-country world where the population in one country grows faster than the other, and investigates the implications of the addition of non-stationary population dynamics to a simple 2- commodity, 2-factor model of international trade within an overlapping- generations...

The equalization of profit rates across a multisector production economy subject to Nash bargaining over wages supports an industry wage structure like those that account for a large fraction of actual wage dispersion and a wage-wage-...-wage-profit surface on which the general profit rate can...