Unemployment and Economic Integration for Developing Countries

While financial or trade integration between countries may increase the size of the market and aid the adoption of more advanced technologies, will it also increase the level of urban unemployment for a developing country? In this model, there is unemployment in the urban sector. Manufacturing firms engage in oligopolistic competition and choose increasing returns technologies to maximize profits. Financial firms provide capital to manufacturing firms and they also engage in oligopolistic competition. We show that an increase in the wage rate in the manufacturing sector changes neither the level of technology nor the level of employment in the manufacturing sector. While financial or trade integration between developing countries leads manufacturing firms to adopt more advanced technologies, the level and rate of employment in the manufacturing sector will not deteriorate.     

A Dynamic Model of the Choice of Technology in Economic Development

In this overlapping-generations model, there is unemployment in the manufacturing sector. Manufacturing firms engage in oligopolistic competition and choose technologies to maximize profits. With capital as a fixed cost of production, increasing returns in the manufacturing sector exist. In the unique steady state, first, when individuals become more patient, the savings rate increases while the level of an individual’s income decreases. Second, an increase in population or percentage of income spent on manufactured goods does not change steady-state technology while the level of an individual’s income decreases. Third, an increase in the wage rate leads manufacturing firms to choose more advanced technologies and the steady-state capital stock increases. Finally, an increase in the level of subsidies to technology adoption does not change steady-state technology.     

Impact of international trade under dual labor markets

A country's unemployment rate can be affected by technology choice and the opening of international trade. This general equilibrium model examines the impact of international trade with the presence of dual labor markets in which manufacturing firms engage in oligopolistic competition and choose technologies with different marginal and fixed costs to maximize profits. In a closed economy, it is shown that an increase in labor market efficiency or a population increase induces manufacturing firms to adopt more advanced technologies and the wage rate in the manufacturing sector increases. With the existence of a continuum of technologies, technology choice is not a source of firm heterogeneity. The opening of international trade leads to an increase in the wage rate in the manufacturing sector and the price of the agricultural good. When countries are identical, international trade always increases national welfare.     

The Choice of Technology and Rural-Urban Migration in Economic Development

This paper studies a general equilibrium model of rural-urban migration in which manufacturing firms engage in oligopolistic competition and choose increasing returns technologies to maximize profits. Urban residents incur commuting costs to work in the Central Business District. Surprisingly a change in the size of the population or an increase in the exogenously given wage rate will not affect a manufacturing firm’s choice of technology. This helps to explain why firms in developing countries may not adopt labor intensive technologies even under abundant labor supply. An increase in the number of manufacturing firms increases both the employment rate and the level of employment in the manufacturing sector. However, manufacturing firms choose less advanced technologies. Capital accumulation leads manufacturing firms to choose more advanced technologies, but may not increase employment in the manufacturing sector.     

International Trade with Increasing Returns in the Transportation Sector

In this general equilibrium framework, the transportation sector is modeled as a distinct sector with increasing returns. A more advanced technology has a higher fixed cost but a lower marginal cost of production. Even with both manufacturing finns and transportation firms engaged in oligopolistic competition and optimally choosing their technologies, the model is tractable and results are derived analytically. Technology adoptions in the manufacturing sector and transportation sector are reinforcing, and multiple equilibria may exist. Firms choose more advanced technologies and the prices decrease when the size of the population is larger.     

Public firms' merger,employment, and welfare in developing countries: A general equilibrium analysis

This paper examines the effect of a merger of state‐owned firms on wage gap, employment, and social welfare in a general equilibrium setting. For a developing economy with state‐owned firms in the urban sector, a merger via a reduction in the number of the urban state‐owned firms can reduce the cost of capital. It then lowers the skilled wage rate through the factor‐substitution effect, while it raises the unskilled wage by the inflow of capital to the rural sector and hence lowers urban unemployment. In addition, the reduction in the number of the urban state‐owned firms can yield a scale effect to the firms. The beneficial effects on higher urban output and less urban unemployment can improve social welfare of the developing economy.     

Imported technologies,urban unemployment and the North-South dialogue

This paper extends the Harris-Todaro model with intersectoral capital mobility to include sector specific imported technologies. Technologies are assumed to be embodied in imported capital goods. The small economy in the South, for which the model is defined, can import any amount of these technologies from the North at given royalty rates. We find that if the North agrees to reduce the royalty rate on the industrial technology, both the level and the rate of urban unemployment would rise and the income distribution change against the wage earners, whereas such a reduction for the agricultural technology would have just the opposite effects. A decrease in either royalty rate would increase the national income in the South, although the magnitude of the increase in income would be larger with reduced royalty rate for agricultural rather than industrial technology. The policy implication is that the South should emphasize the import of agricultural technology over the industrial technology.     

The Choice of Technology and Equilibrium Wage Rigidity

In this general equilibrium model, firms engage in oligopolistic competition and choose increasing returns technologies to maximize profits. Capital and labor are the two factors of production. The existence of efficiency wages leads to unemployment. The model is able to explain some interesting observations of the labor market. First, even though there is neither long-term labor contract nor costs of wage adjustment, wage rigidity is an equilibrium phenomenon: an increase in the exogenous job separation rate, the size of the population, the cost of exerting effort, and the probability that shirking is detected will not change the equilibrium wage rate. Second, the equilibrium wage rate increases with the level of capital stock. Third, a higher level of capital stock does not necessarily reduce the unemployment rate. That is, there is no monotonic relationship between capital accumulation and the unemployment rate.     

Resource abundance,market size,and the choice of technology

How resource abundance and market size affect the choice of increasing returns technologies is studied in an overlapping‐generations general equilibrium model in which manufacturing firms engage in oligopolistic competition. The model is surprisingly tractable. First, for the steady state, the wage rate, the level of technology, and capital stock are not affected by the amount of natural resources. An increase in the share of agricultural revenue going to natural resources leads to a lower wage rate and firms choose less advanced technologies. Second, an increase in market size increases the equilibrium wage rate, level of technology, and capital stock. Finally, other things equal, a country with a lower endowment of natural resources or a higher market size has a comparative advantage in producing the manufactured good.     

The Optimal Environmental Tax and Urban Unemployment in an Open Economy

This paper investigates how a rise in the urban pollution tax rate may affect urban unemployment and welfare in a small open Harris–Todaro (HT) model with intersectoral capital mobility. First, by formulating urban pollution as a dirty input in manufacturing, we find that an increase in the urban pollution tax rate can increase the level of urban unemployment even with intersectoral capital mobility. That is, the optimistic finding by Rapanos (2007 ) that environmental protection policy reduces urban unemployment in the long run does not always hold. Second, the (sub)optimal pollution tax rate under urban unemployment is higher than the Pigouvian tax rate (the marginal damage of pollution). This result opposes those of Beladi and Chao (2006 ) for a closed HT economy and that of Tsakiris et al. (2008 ) for an open HT economy with sector‐specific capital.     

Employment,output and the choice of techniques: The trade-off revisited

In this paper we explore the choice of techniques issue in a dual economy model with unemployment in the urban sector. Conventional wisdom suggests that developing societies attempting to modernize and transform backward sectors into advanced ones do so by choosing labor-intensive technologies to avoid rising unemployment. We analyze the effect of labor-intensive technology on (a) the level of urban unemployment, and (b) the relationship between the levels of urban employment and unemployment. We show under quite reasonable conditions that choosing a labor-intensive technology will actually aggravate the unemployment problem. We also show that the nature and pattern of the trade-off between modernization and employment are crucially dependent on the existing agricultural technology.     

Urban job creation and unemployment in LDCs: Todaro vs. Harris and Todaro

Overwhelming urban migration occurred so rapidly in many developing countries that widespread unemployment and squalid living conditions are commonplace. For many of these countries, stopping urban migration has become a major policy. Two models propose 2 different theories of urban unemployment. Todaro's short-term effects model concludes that job creation actually causes unemployment. Todaro and Harris formulated a long-term effects model in which welfare subsidies create more employment and stimulate the economy. A real solution to urban job creation would include optimal allocation of investment between the rural and labor sectors. A once and for all hiring tax would reduce replacement hiring. It is impossible to design an optimal tax subsidy package for urban unemployment unless it includes knowledge of the dynamic response of migration and unemployment to the rate of net and gross hiring of labor. If subsidy taxes are levied on the agricultural sector, the net result may be a higher rate of capital formation in the (low social return) manufacturing sector and a lower one in the agricultural sector.     

Job-search and foreign capital inflow — A three-sector general equilibrium analysis

The purpose of this paper is to extend the Fields' (1989) multi-sector job-search model in a three-sector general equilibrium framework by introducing international trade and capital as input. The three sectors are the rural sector, the urban informal sector and the urban formal sector. The rural sector and the urban informal sector use one type of mobile capital while the urban formal sector uses a sector-specific capital. We find that the effects of an inflow of foreign capital in the urban formal sector on unemployment and social welfare crucially hinge on the relative factor intensities of the rural sector and the urban informal sector. We show that there is a possibility of trade-off between the government's twin objectives of improvement in social welfare and mitigation of the urban unemployment problem. These results are extremely crucial from the view point of policymaking in an unemployment plagued, low-income developing economy.     

Appropriation,migration, and unemployment

This article builds general equilibrium models to explore the relationship among appropriation, rural–urban migration, the minimum wage and unemployment. We find that the proportion of appropriated capital plays a key role in the effects of appropriation on unemployment and rural–urban migration. When the proportion of appropriated capital is large, a stronger control on appropriation by the government results in a lower unemployment rate and more rural–urban migrants, and vice versa. In the extended models, the conclusion may be different when the plundered factor changes from capital to land. In the situation with the agricultural sector employing unskilled labour and capital, appropriation has no impact on unemployment, and the effect on migration remains the same. We also discuss the implications of the minimum wage, and find that under plausible conditions, the rise of the minimum wage can alleviate appropriation and reduce unemployment. The situation of migration is ambiguous due to the impacts of two opposite factors.     

Job-search and foreign capital inflow — A two sector general equilibrium analysis

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.     

Market Integration,Choice of Technology,and Welfare

This paper develops an international trade model where firms in a duopoly may diversify their technologies for strategic reasons. The firms face the same set of technologies given by a tradeoff between marginal costs and fixed costs, but depending on trade costs firms may choose different technologies. Market integration may induce a technological restructuring where firms either diversify their technologies or switch to a homogeneous technology. In general, market integration improves welfare. However, a small decrease of trade costs which induces a switch from heterogeneous technologies to a homogeneous technology may locally reduce global welfare. The model also shows that productivity differences lead to intra‐industry firm heterogeneity in size and exports similar to the “new–new” trade models with monopolistic competition.     

Job Creation, Job Destruction, and the International Division of Labor

The authors incorporate equilibrium unemployment due to imperfect matching into a model of trade in intermediate inputs. Firms are assumed to be price‐takers and their size is given by technology. Firms enter the market as long as expected profits cover the search cost they incur initially; jobs are endogenously destroyed by random shocks that affect firms’ price–cost margins. Trade increases productivity in the final good and then demand for each intermediate input. Steady‐state unemployment is reduced after trade integration because the rate of job destruction is reduced, which in turn induces an indirect positive effect on job creation. A more volatile environment faced by firms does not necessarily increase unemployment. However, the rate of job destruction unambiguously rises, and rises more under free trade.     

Low level equilibrium trap,unemployment, efficiency of education system,child labour and human capital formation

This paper builds an overlapping generations household economy model to examine the impact of adult unemployment on the human capital formation of a child and on child labour, as viewed through the lens of the adult’s expectations of future employability. The model indicates that the higher the adult unemployment rate in the skilled sector, the lesser is the time allocated by an unskilled adult towards schooling of her child. We also find that an increase in the unskilled adult’s wage may or may not decrease child labour in the presence of unemployment. The model predicts that an increase in child wage increases schooling and human capital growth rate only if the adults in the unskilled sector earn less than subsistence consumption expenditure. As the responsiveness of skilled wage to human capital increases, schooling and human capital growth rates increase. The model dynamics bring out the importance of education efficiency and parental human capital in human capital formation of the child. In the case of an inefficient education system, generations will be trapped into low level equilibrium. Only in the presence of an efficient education system, steady growth of human capital is possible. Suitable policies that may be framed to escape the child labour trap are discussed as well.     

Equity Control of Multinational Firms: Effects on Resource Allocation and National Welfare

In this paper, we re-examine the effects of equity control of multinational firms on resource allocation and national welfare in a model with rural–urban migration and urban unemployment. A large number of recipient (host) countries are developing countries with dual economies. We indicate, among other things, that a restriction on multinational investment may lower the unemployment rate and increase the total employment in the host country. Furthermore, we find that the restriction on multinational investment raises the national welfare in the host economy if the tariff imposed on imports is sufficiently large and the difference between domestic and foreign capital rental is sufficiently small.     

Unemployment,Wage Inequality and International Factor Movement in the Presence of Agricultural Dualism

This paper investigates how the international factor movements affect the unemployment and skilled–unskilled wage inequality with the existence of a modern agricultural sector. Our research has the new feature that we not only consider that the rural labor migrates to the urban sector but also to the modern agricultural sector. The main conclusions are that the unskilled labor outflow certainly decreases the wage inequality and unemployment rate and the influences that skilled labor movement and capital inflow have on wage inequality and unemployment rate are dependent on the factor intensity between the urban and modern agricultural sectors.