References of "Zou, Benteng 50003367"
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See detailThe Migration of Medical Workers in Sub-Saharan Africa and Substitution Policy
Bourgain, Arnaud UL; Pieretti, Patrice UL; Zou, Benteng UL

in Revue Economique (2010), 61(6), 1011-1022

Substitution policies are strategies sometimes chosen in Sub-Saharan Africa for curtailing the shortage of health professionals especially caused by the outflow of medical personnel. The aim of our ... [more ▼]

Substitution policies are strategies sometimes chosen in Sub-Saharan Africa for curtailing the shortage of health professionals especially caused by the outflow of medical personnel. The aim of our contribution is to propose a way to assess the merits and drawbacks of substitution policies by developing a simple growth model of healthcare productivity with medical brain drain. Within this framework, we use a medical care production function of the ces type which aggregates low and high specialized health workers. We then run simulations which compare scenarios with and without substitution strategies by using data from the Ghana’s medical sector. [less ▲]

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See detailBridging the gap between growth theory and the new economic geo-graphy : The spatial Ramsey model
Boucckine, Raouf; Camacho, Carmen; Zou, Benteng UL

in Macroeconomic Dynamics (2009), 13(1), 20-45

We study a Ramsey problem in in¯nite and continuous time and space. The problem is discounted both temporally and spatially. Capital flows to locations with higher marginal return. We show that the ... [more ▼]

We study a Ramsey problem in in¯nite and continuous time and space. The problem is discounted both temporally and spatially. Capital flows to locations with higher marginal return. We show that the problem amounts to optimal control of parabolic partial differential equations (PDEs). We rely on the existing related mathematical literature to derive the Pontryagin conditions. Using explicit representations of the solutions to the PDEs, we first show that the resulting dynamic system gives rise to an ill-posed problem in the sense of Hadamard (1923). We then turn to the spatial Ramsey problem with linear utility. The obtained properties are significantly different from those of the non-spatial linear Ramsey model due to the spatial dynamics induced by capital mobility. [less ▲]

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See detailBrain Drain and Factor Complementarity
Pieretti, Patrice UL; Zou, Benteng UL

in Economic Modelling (2009), 26(2), 285-548

In this paper we develop an extended Solow growth model with emigration which aggregates different types of labor skills from strict complementarity to perfect substitution. The derivation of balanced ... [more ▼]

In this paper we develop an extended Solow growth model with emigration which aggregates different types of labor skills from strict complementarity to perfect substitution. The derivation of balanced growth paths shows that the most relevant cases for studying the impact of emigration are those where these paths can only be attained asymptotically. This requires and justifies the need for using transitional dynamics. We therefore derive a complete characterization of the transitional dynamics of output and wages in the sending country for all possible values taken by the elasticity of substitution between skilled and unskilled workers. The model then serves to qualitatively study the effect of brain drain on per capita income and wages of the sending country. [less ▲]

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See detailEconomic Development and Environmental Quality: A Reassessment in Light of Nature's Self-Regeneration Capacity
Bertinelli, Luisito UL; Strobl, Eric; Zou, Benteng UL

in Ecological Economics (2008), 66(2-3), 371-378

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See detailDoes Urbanization Always Foster Human Capital Accumulation
Bertinelli, Luisito UL; Zou, Benteng UL

in Journal of Developing Areas (2008), 41(2), 171-184

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See detailPollution Perception: A Challenge for Intergenerational Equity
Schumacher, Ingmar; Zou, Benteng UL

in Journal of Environmental Economics and Management [= JEEM] (2008), 55

In this article we extend the recent literature on overlapping generations and pollution by allowing generations to perceive the level of pollution differently than the actual level of pollution. We call ... [more ▼]

In this article we extend the recent literature on overlapping generations and pollution by allowing generations to perceive the level of pollution differently than the actual level of pollution. We call this pollution perception. Pollution perception can visualize itself as either a concern for the °ow of pollution only, or for the stock, or a combination of both. We derive this extension based on empirical evidence from recent advances in behavioral economics. Pollution perception has not only signifficant consequences for the steady state levels of pollution and capital, but we also and a qualitative change in the dynamics from similar models without pollution perception [23]. Specifically, we derive optimal non-linear dynamics through complex eigenvalues and Hopf or Flip bifurcations for a large set of parameters. This leads to violations of two standard criteria of sustainability, suggesting that pollution perception can be another source of intergenerational inequity. [less ▲]

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See detailBrain Drain, Remittances, and Fertility
Marchiori, Luca; Pieretti, Patrice UL; Zou, Benteng UL

in Journal of International Economics (2008)

This paper analyzes the effects of skilled migration and remittances on fertility decisions at origin. We develop an overlapping generations model which accounts for endogenous fertility and education ... [more ▼]

This paper analyzes the effects of skilled migration and remittances on fertility decisions at origin. We develop an overlapping generations model which accounts for endogenous fertility and education. Parents choose the number of children they want to raise and decide upon how many children obtain higher education. Only high skilled individuals migrate with a certain probability and remit to their parents. We find that an increase in the probability to emigrate leads both high and low skilled parents to send more children to obtain higher education. However the effect on the number of children is ambiguous. In a further analysis, we calibrate the model to match different characteristics of a developing economy. When the destination country relaxes the immigration restrictions, more high skilled individuals leave the origin country. The result is that, at origin, increased high skilled emigration reduces fertility and fosters human capital accumulation. [less ▲]

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See detailOn the dynamics of capital accumulation across space
Camacho, Carmen; Zou, Benteng UL; Briani, Maya

in European Journal of Operational Research (2008), 186(2), 451-465

We solve an optimal growth model in continuous space, continuous and bounded time. The optimizer chooses the optimal trajectories of capital and consumption across space and time by maximizing an ... [more ▼]

We solve an optimal growth model in continuous space, continuous and bounded time. The optimizer chooses the optimal trajectories of capital and consumption across space and time by maximizing an objective function with both space and time discounting. We extract the corresponding Pontryagin conditions and prove their sufficiency. We end up with a system of two parabolic differential equations with the corresponding boundary conditions. We propose a simple numerical set-up to simulate PDE systems which we employ to study the roles of initial capital and technology distributions over space in various scenarios. [less ▲]

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See detailAn Extended Solow Growth Model with Emigration: Transitional Dynamics and Skills Complementarity
Pieretti, Patrice UL; Zou, Benteng UL

in Economics Bulletin (2007), 6(35), 1-11

In this paper we develop an extended Solow growth model with skilled labor emigration which aggregates different labor types from strict complementarity to perfect substitution. Except in two particular ... [more ▼]

In this paper we develop an extended Solow growth model with skilled labor emigration which aggregates different labor types from strict complementarity to perfect substitution. Except in two particular cases, balanced growth paths can only be attained asymptotically. We therefore derive an analytical characterization of the transitional dynamics of the model. We are thus able to study the impact of labor elasticity of substitution on the time pattern of per capita income in the country that experiences brain drain. Simulations show that the shape of per capita trajectory depends crucially on the degree of complementarity (substitutability) between labor skills. Given that no income trajectory dominates the others, there is room for policy issues by influencing the elasticity of substitution (Klump and Preissler, 2000). [less ▲]

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See detailA comparative study of energy saving technical progress in a vintage capital model
Perez-Barahona, Agustin; Zou, Benteng UL

in Resource and Energy Economics (2006)

We analyze the hypothesis about the effectiveness of energy saving technologies to reduce the trade-off between economic growth and energy preservation. In a general equilibrium vintage capital model with ... [more ▼]

We analyze the hypothesis about the effectiveness of energy saving technologies to reduce the trade-off between economic growth and energy preservation. In a general equilibrium vintage capital model with embodied energy saving technical progress, we show that positive growth is only possible if the growth rate of the energy saving technical progress exceeds the decreasing rate of the energy supply. [less ▲]

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See detailVintage technology, optimal investment and 2 technology adoption
Zou, Benteng UL

in Economic Modelling (2006)

In this paper, we study a vintage technology model under a market equilibrium setting. In this model, firms can invest not only on new vintage technology, but also on existing ones. We first generalize ... [more ▼]

In this paper, we study a vintage technology model under a market equilibrium setting. In this model, firms can invest not only on new vintage technology, but also on existing ones. We first generalize previous partial equilibrium settings and, second, incorporate the adoption problem into a vintage framework. [less ▲]

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See detailThe spatial Solow model
Camacho, Camen; Zou, Benteng UL

in Economics Bulletin (2004)

In this paper, we solve a Solow model in continuous time and space. We prove the existence of a solution to the problem and its convergence to a stationary solution. The simulations of various scenario in ... [more ▼]

In this paper, we solve a Solow model in continuous time and space. We prove the existence of a solution to the problem and its convergence to a stationary solution. The simulations of various scenario in the last section of the paper illustrates the convergence issue. [less ▲]

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See detailInitial-irregular oblique derivative problems for nonlinear parabolic complex equations of second order with measurable coefficients
Wen, Guochun; Zou, Benteng UL

in Nonlinear Analysis: Theory, Methods & Applications (2000)

In this paper, initial-irregular oblique derivative boundary value problems for nonlinear and non-divergence parabolic complex equations of second order in multiply connected domains are discussed, where ... [more ▼]

In this paper, initial-irregular oblique derivative boundary value problems for nonlinear and non-divergence parabolic complex equations of second order in multiply connected domains are discussed, where coefficients of equations are measurable. Firstly, the uniqueness of solutions for the above problems is verified, and then a priori estimates of solutions for the problems are given. Finally, by using the above estimates and the Leray-Schauder theorem, the existence of solutions of the initial-boundary value problems is proved. [less ▲]

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