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.     

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.     

Capital tax,minimum wage,and labor market outcomes

Often an increase in the minimum wage is accompanied by a reduction in the capital tax. This paper analyzes the effects of interactions between the minimum wage and the capital tax in the general equilibrium framework. The analysis is conducted in an inter-temporal search model in which firms post wages. A (binding) minimum wage provides a lower support for the distribution of wages. The paper finds that the interaction of these two policy instruments significantly modify labor market outcomes and welfare cost. In the presence of a binding minimum wage, a decrease in the capital tax leads to an increase in wage dispersion. In contrast, when it is not binding, a lower capital tax may reduce the dispersion in wages. A binding minimum wage magnifies the positive effects of a lower capital tax on labor supply, employment, and output. It also enhances the welfare cost of capital tax. A policy change which involves an increase in the minimum wage and a fall in the capital tax such that employment level remains constant increases welfare and output.     

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.     

The choice of technology in economic development

The impact of capital accumulation on job creation is an important and interesting issue in economic development. This model provides a general-equilibrium framework for studying technology choice with unemployment in a developing economy based on micro-foundations. Unemployment in the urban sector results from the existence of efficiency wages. Manufacturing firms engage in oligopolistic competition and choose technologies to maximise profits. A more advanced technology uses more capital and less labour. In the steady state, an increase in the amount of capital induces firms to choose more advanced technologies and the wage rate increases. While a higher capital stock always induces firms to choose more advanced technologies, urban unemployment rate may decrease and agricultural sector employment may increase.     

一个古典经济周期波动模型——对Goodwin古典周期模型的重构

基于古典主义思想对于劳动与资本这一经济运行核心关系的论述,本文对Goodwin周期模型进行了重构,构建一个由工资份额与资本存量组成的二维古典经济周期波动模型.稳定性分析结果表明,模型的均衡状态为非稳定焦点均衡,一旦脱离均衡点,经济将在工资份额与资本存量相互作用的驱动下围绕均衡点做周期性波动,且波动的幅度逐步加大.产生这一现象的根本原因在于工资性收入与资本性收入即资本存量之间比例结构的波动.     

Exhaustible resources,technology choice and industrialization of developing countries

How should the world economy adapt to the increased demand for exhaustible resources from countries like China and India? To address that issue, this paper presents a dynamic model of the world economy with two technologies for production; a resource technology, which uses an exhaustible resource as an input and an alternative technology, which does not. I find that both the time path of resource extraction and the adoption of the alternative technology depend on the optimal allocation of capital across the technologies, and on the size of the capital stock in relation to the resource stock. In particular, if the capital stock is low, only the resource technology is used initially and the alternative technology is adopted with a delay. Next, I use the model to analyze the effects of industrialization of developing countries on the extraction of oil and technology choice for energy production. As a result of industrialization, the alternative technology for energy production is adopted earlier.     

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.     

Corporate Tournaments, Human Capital Acquisition, and the Firm Size–Wage Relation

This paper provides a possible explanation for the empirically observed size–wage effect and inter-industry wage differences. It develops a model in which incentives for workers to accumulate general human capital are provided by corporate tournaments, where workers with the highest level of general human capital win promotions. Given that the prizes in such tournaments are determined by outside market conditions, the investment and the equilibrium wages depend on firm and industry characteristics. The model implies that workers in bigger firms and in more technology intensive and profitable firms and industries acquire more human capital and receive higher wages and benefits.     

Institutions,capital stock and wage setting in Spain

This article confronts two distinct perspectives of the labour market: the institutionalist view?–?highlighting equilibrium and labour market institutions?–?and the Chain Reaction Theory?–?emphasizing dynamics and the growth drivers’ role in labour market performance. We consider the ratio of public to private capital stock as a growth driver relevant to the labour market; provide different economic rationales for this ratio to exert a negative influence in wage setting; and explore its empirical relevance in the context of a wage setting curve for Spain comprising the standard variables. There are two main results. First, several institutional variables taken to be critical to explain unemployment in the mainstream literature are not relevant for the Spanish wage setting curve. Second, there is a negative and significant influence of the ratio of public to private capital stock, which is robust to different specifications of the wage setting equation.     

Time consuming resource extraction in an overlapping generations economy with capital

For worldwide fisheries production, two major trends emerge for the next decades: a significantly larger role for aquaculture and reduced output due to climate change impacts. While the former leads to an increase in cost, the latter affects natural regeneration. To address both impacts, we investigate the relevance of resource extraction costs for a private property fishery in an intertemporal general equilibrium model with capital accumulation, commodity production and a labor market. We show how the extraction cost parameter—in addition to time preference, technology and natural regeneration—matters for the existence (and stability) of an economically feasible, nontrivial stationary state. Higher extraction costs increase the equilibrium resource stock, while a reduced regeneration rate (e.g. due to climate change) decreases the stock. Moreover, resource extraction overshoots its new equilibrium value after the cost shock while after a regeneration shock extraction levels adjust monotonically towards the new equilibrium.     

Renewable resource and capital with a joy-of-giving resource bequest motive

In this article we ask whether a privately owned natural renewable resource can be conserved and managed efficiently when households have a joy-of-giving resource bequest motive. We model an overlapping generations economy in which firms have access to a CES production technology combining the natural resource, physical capital and labor. Our results shed light on the interplay between the resource bequest motive and the substitutability/complementarity relationship between capital and the natural resource in the determination of the equilibrium propensity to use the resource. The mere existence of the bequest motive does not guarantee that the resource will be conserved in the long run. When the resource is highly substitutable with capital, the equilibrium actually never exhausts the resource stock whatever the intensity of the bequest motive. When the resource is a poor substitute for capital, the equilibrium preserves the resource only if the taste for bequeathing is strong enough. Be the economy in over-accumulation or in under-accumulation of the natural resource, it always increases aggregate consumption to run the stock of capital at a level lower than the efficiency level.     

PUBLIC INVESTMENT,TAXATION AND TRANSFER OF TECHNOLOGY

A low‐wage developing economy (South) is interested in accessing and attracting superior technology from a high‐wage developed economy (North) with firms having heterogeneous quality of technology. To improve upon the initial market equilibrium, which shows that relatively inefficient technologies will move to the South, the host government invests in infrastructure financed through taxing the foreign firms. We discuss the problem of existence of such a tax‐transfer mechanism within a balanced budget framework. We argue that such a policy can increase tax revenue as well as instigate the transfer of better quality technology. It turns out that this policy is more likely to be successful when the production concerns high‐value, high‐price products in low‐wage economies. Our results improve upon the conventional strategy of a tax break.     

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.     

International Trade and Growth Miracles: the Implications of Nonhomothetic Preferences

If the rate of saving increases with income then a low per capita level of the capital stock may be self‐sustaining. In these circumstances international trade may allow an economy to quickly increase its per capita capital stock in a self‐reinforcing “growth miracle” process. A labor‐abundant economy trading with a capital‐abundant economy will see its wage rate rise relative to autarky. This rise in the wage rate also increases the savings rate and so raises the following period’s per capita capital stock. In this way a low‐income economy may exhibit large and permanent increases in its level of GDP per capita after opening its markets to international trade.     

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.     

The NAIRU reconsidered: why labour market deregulation may raise unemployment

According to the mainstream theory of equilibrium unemployment, persistent unemployment is caused mainly by ‘excessive’ labour market regulation, whereas aggregate demand, capital accumulation and technological progress have no lasting effect on unemployment. We show that the mainstream non‐accelerating inflation rate of unemployment (NAIRU) model is a special case of a general model of equilibrium unemployment, in which aggregate demand, investment and endogenous technological progress do have long‐term effects. It follows that labour market deregulation does not necessarily reduce steady‐inflation unemployment. Theoretically, if the decline in real wage growth claims owing to deregulation is smaller than the ensuing decline in labour productivity growth and in the warranted real wage growth, then in that case steady‐inflation unemployment may increase. Empirical evidence for 20 Organisation for Economic Cooperation and Development (OECD) countries (1984–1997) indicates that the impact of labour market deregulation on OECD unemployment is zero, and possibly negative (causing a higher rate of unemployment).     

Skilled–unskilled wage inequality,product variety,public input and increasing returns: A static general equilibrium analysis

The paper develops a four sector small open economy model with two traded final good sectors, a public intermediate good producing sector and a nontraded good sector producing varieties of intermediate goods. There are three primary factors: capital, skilled labour and unskilled labour. Industrial sector producing a traded good uses capital, intermediate goods and skilled labour as inputs. Intermediate goods producing sector also uses capital and skilled labour. Public input producing sector and the agricultural sector producing the other traded good use capital and unskilled labour as inputs. It is shown that, if production technologies are the same for the agricultural sector and the public input producing sector and if the scale elasticity of output is very low, then an increase in capital stock (unskilled labour endowment) raises (lowers) the skilled–unskilled wage ratio. However, an increase in skilled labour endowment does not produce any unambiguous effect. On the other hand, an increase in the tax rate on industrial output and/or an increase in the price of the agricultural product, armed with the same set of assumptions, lowers the skilled–unskilled wage ratio.     

Coordination Costs,Market Size,and the Choice of Technology

Impact of coordination costs and market size on a firm's choice of technology is studied in a general equilibrium model in which finns engage in oligopolistic competition. A firm establishes an organizational hierarchy to coordinate its production. First, it is shown that an increase in market size leads a firm to choose a more specialized technology. Second, surprisingly, a robust result is that an increase in the level of coordination efficiency leads a firm to choose a less specialized technology.     

不完全劳动市场、政府干预与失业率

本文针对我国不完全的劳动市场,建立了一个短视一搜寻模型,目的是要说明,第一,虽然政府直接干预下的就业率高于无政府干预的劳动市场的均衡就业率,但是后者的社会总福利水平高于前者,而且,无政府干预情形下失业者的福利水平不会低于政府干预时在低工资岗位上的就业者的福利水平.这说明政府直接干预劳动市场虽然有可能降低失业率,但可能导致整个社会福利损失,也不利于提高低收入人群的福利水平.第二,我国现行的社会保障制度、户籍制度以及地方保护政策妨碍城乡劳动力自由流动,造成城市居民一般占据了工资较高的岗位,农村居民一般只能找到工资较低的岗位.这种匹配过程达到的劳动市场均衡,虽然有可能最大限度降低城镇失业率,但不是使得全国总失业率最低的均衡.