FOREIGN ENCLAVES, INFORMAL SECTOR AND URBAN UNEMPLOYMENT-A THEORETICAL ANALYSIS

:- 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 assumed in different sections of this paper. We also analyse the effects of expansion of foreign enclave on urban unemployment and on domestic factor income. In many cases, we get the results opposite to that obtained in the young-Miyagiwa model.FOREIGN-ENCLAVES,INFORMAL SECTOR,URBAN UNEMPLOYMENT

ON-THE-JOB SEARCH, URBAN INFORMAL SECTOR AND THE DEVELOPMENT POLICIES-A GENERAL EQUILIBRIUM ANALYSIS

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 more efficient on-the-job search from the rural sector raises equilibrium urban unemployment rate whereas increased job search efficiency from the urban informal sector lowers this rate. Again urban subsidy policy lowers the equilibrium urban unemployment rate and rural subsidy policy raises this rate. Urban formal sector enlargement leads to a change in ex-ante and ex-post labour force in the rural sector even if urban informal sector wage rate is constant. All the results are obtained both in the case of perfect and imperfect capital mobility.job search, informal sector,development policy

Should informal sector be subsidised?

This paper explains the impact of output subsidy to the informal sector on urban unemployment and domestic factor income in a mobile capital model where urban formal wage is endogenous and the informal sector has global exposure.Informal sector; Subsidy

Foreign enclaves, informal sector and urban unemployment: A theoretical analysis

ABSTRACT :- 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 assumed in different sections of this paper. We also analyse the effects of expansion of foreign enclave on urban unemployment and on domestic factor income. In many cases, we get the results opposite to that obtained in the young-Miyagiwa model.FOREIGN ENCLAVES; INFORMAL SECTOR ; URBAN UNEMPLOYMENT

Trade Reform, Capital Mobility, and Efficiency Wage in a Harris-Todaro Economy

The main purpose of this paper is to analyse the impact of trade reform on unemployment and social welfare in a Harris-Todaro (1970) economy with efficiency wage and capital mobility. The analysis shows that capital mobility plays an important role to influence the impact of trade reform on unemployment and social welfare. We find that trade reform raises urban unemployment and produces an ambiguous effect on social welfare when capital is perfectly mobile among the three sectors. However, such policy lowers unemployment and raises social welfare when capital is imperfectly mobile.Trade Reform, Capital Mobility, Efficiency Wage

Skill acquisition and economic development — some comments

Deme, Franck and Naqvi(2005) showed that the increased government expenditure on education, training and skill acquisition leads to lower unemployment rate, expansion of the urban formal sector and the contraction of the urban informal sector. This was observed to be the case in Lesotho. The result is based on the two vital assumptions: public expenditure on education ,training and skill acquisition should be very large; and the skill acquisition function is a rising step function. We present a general equilibrium model with perfect capital mobility to analyse the impact of government expenditure on skill acquisition on urban unemployment, the urban formal sector and the urban informal sector.We find that it is possible to derive the Deme, Frank and Naqvi(2005) result independent of the level of government expenditure and the nature of the skill function.skill acquisition; economic development

Anderson orthogonality catastrophe in realistic quantum dots

We study Anderson orthogonality catastrophe (AOC) for an parabolic quantum dot (PQD), one of the experimentally realizable few-electron systems. The finite number of electrons in PQD causes AOC to be incomplete, with a broad distribution of many-body overlaps. This is a signature of mesoscopic fluctuations and is in agreement with earlier results obtained for chaotic quantum dots. Here, we focus on the effects of degeneracies in PQDs, realized through their inherent shell structures, on AOC. We find rich and interesting behaviours as a function of the strength and position of the perturbation, the system size, and the applied magnetic field. In particular, even for weak perturbations, we observe a pronounced AOC which is related to the degeneracy of energy levels. Most importantly, the power law decay of the many-body overlap as a function of increasing number of particles is modified in comparison to the metallic case due to rearrangements of energy levels in different shells.Comment: 14 pages, 15 figure

Phase delay time and superluminal propagation in barrier tunneling

In this work we study the behaviour of Wigner phase delay time for tunneling in the reflection mode. Our system consists of a circular loop connected to a single wire of semi-infinite length in the presence of Aharonov-Bohm flux. We calculate the analytical expression for the saturated delay time. This saturated delay time is independent of Aharonov- Bohm flux and the width of the opaque barrier thereby generalizing the Hartman effect. This effect implies superluminal group velocities as a consequence. We also briefly discuss the concept called "space collapse or space destroyer".Comment: 5 pages, 5 figure

Job-search and FDI in a two-sector general equilibrium model

The purpose of this paper is to extend the Fields’ (1989) multi sector job-search model by introducing international trade and capital. Two types of capital are considered: fixed capital and mobile capital. The effects of search intensity and the inflow of foreign capital on the volume and the rate of urban unemployment and on the social welfare are also examined in both of the two cases. The main finding is: more efficient on-the-job search from the rural sector raises unemployment rate when capital is mobile between the two sectors. This is counterproductive to the standard result