Agricultural producer service subsidies and agricultural pollution: An approach based on endogenous agricultural pollution

Agricultural producer service is an indispensable link in promoting agricultural modernization in developing countries, while agricultural pollution has become the largest source of pollution in many developing countries. Given that agricultural pollution is different from industrial pollution due to its endogenous characteristics, we linked agricultural pollution with the human capital level of labor and propose an endogenous model that reflects the agricultural pollution path, which is different from the traditional path. We studied the effects of government price subsidy, interest subsidy, and wage subsidy to agricultural producer service on agricultural pollution and other economic indicators by constructing a three-sector general equilibrium model including agricultural producer service. We found that the rise of price subsidy for the agricultural producer service and the wage subsidy of the agricultural producer service sector would increase the output of agricultural sector and reduce the output of agricultural producer service under certain conditions, but aggravate agricultural pollution; at the same time, the rise of interest subsidy of the agricultural producer service sector would decrease the output of the agricultural sector, enhance the output of agricultural producer service conditionally, and decrease agricultural pollution. Preconditions of the three subsidies to improve national welfare have been obtained.     

刘易斯模型适用性考察

文章考察刘易斯经典模型的适用性,主要结论是:(1)刘易斯经典模型具有简单而又精巧的博弈结构,它大致适用于地主所有制且劳动力过剩的经济.(2)刘易斯经典模型不适用于自耕农制度且劳动力过剩的经济.在流动者与家庭脱离经济关系情形下(刘易斯曾考虑过),两部门工资大于或等于生存工资并在此基础上上升;在流动者与家庭不脱离经济关系情形下,农业部门工资上升而资本主义部门工资波动.(3)在多种农业土地制度并存情形下,经济发展不具备刘易斯经典模型的特征.由于劳动力流动次序由保留工资决定,其结果就是:在劳动力过剩阶段,资本主义部门工资先维持在生存水平上,此后逐步上升.(4)市场化改革以来,中国农业土地制度类似于自耕农制度,城乡分割的户籍制度使非农工作者与家庭很少脱离经济关系,劳动力流动特征与刘易斯经典模型结论也不一致.     

Nutritional efficiency wages and child labor

This paper formally analyzes the incidence of child labor by employing an overlapping-generations general-equilibrium model of a small open economy. An individual's ability determines whether or not he/she becomes a skilled worker. The supply side of the economy is composed of two sectors: a modern sector that produces a homogeneous good using skilled labor and physical capital; and an agrarian sector that produces a traditional good using unskilled adult labor, child labor, and land. An increase in foreign direct investment and improvements in education reduce the incidence of child labor. Emigration of skilled (unskilled) workers reduces (raises) the supply of child labor, while trade sanctions reduce the demand for child labor. Child wage subsidies have an ambiguous effect on the incidence of child labor while education subsidies are effective in reducing the incidence of child labor. Simulation analysis is used to investigate the welfare effects of the aforementioned policies.     

Green technological progress,agricultural modernization,and wage inequality: Lessons from China

Green technological progress (GTP) is crucial for environmental protection and economic growth in China. Over the past decades, China made huge GTP which exerts a far-reaching consequence on economic and social development. However, a paucity of research investigates the distributional effect of GTP. Meanwhile, we incorporate agricultural producer service sector into a three-sector general equilibrium model to reflect the modernization of small-scale agriculture. The agricultural producer service sector that acts as an intermediate sector can facilitate the utilization of intermediate inputs indirectly. To desalinate this process, a two-layer vertical production structure is established: parts of manufacturing goods are utilized by the service sector, outputs of which are intermediate inputs that could substitute labor in agriculture. Theoretical analysis shows that GTP increases both wage of skilled labor and unskilled labor. Nevertheless, GTP generates a greater impact on the wage of skilled labor than unskilled labor, leading to widening income disparity. Then, we examine the impact of GTP on wage inequality using a balanced panel data covering 30 provincial units in China during 2000–2019. In line with our theoretical conjecture, we find strong supportive evidences that GTP significantly widens the wage inequality.     

Urban unemployment, informal sector and development policies

We analyze the effects of wage subsidy policies on unemployment and welfare in the model that is characterized by the existence of both open unemployment and the informal sector that producesfinal goods. Our main findings are as follows. Wage subsidies to the agricultural and informal sectors increase welfare and decrease urban unemployment. The effects of a wage subsidy to manufacturing sector on welfare and unemployment are conditional. We identify some sufficient conditions for the definite results and interpret them.     

Biological conservation in dynamic agricultural landscapes: Effectiveness of public policies and trade-offs with agricultural production

Land use change and land management intensification are major drivers of biodiversity loss, especially in agricultural landscapes, that cover a large and increasing share of the world's surface. Incentive-based agri-environmental policies are designed to influence farmers' land-use decisions in order to mitigate environmental degradation. This paper evaluates the effectiveness of agri-environmental schemes for biological conservation in a dynamic agricultural landscape under economic uncertainty. We develop a dynamic ecological economic model of agricultural land-use and spatially explicit population dynamics. We then relate policies (subsidies to grassland, taxation of agricultural intensity) to the ecological outcome (probability of persistence of a species of interest). We also analyze the associated trade-offs between agricultural production (in value) and biological conservation (in probability of persistence) at the landscape scale.     

Can Growth Ease Class Conflict?

This paper proposes a theory that links labor supply to wage growth and economic growth, and the conflict of interest between capital and labor. During the early stages of industrialization of a country, "surplus" labor drawn from the traditional sector of the economy is available to the modern capitalist sector at a constant or only slowly rising wage. As industrialization proceeds, this labor surplus vanishes, leading to wages rising in tandem with the growth of output. As long as there is surplus labor, workers in the modern capitalist sector, who are organized, have little interest in growth as it does not raise wages. The effect of growth is external to them, simply drawing more workers into the capitalist sector and enabling the entrants to receive rents. So capitalist-sector workers would like to redistribute income regardless of the adverse effect on growth. Once the economy grows enough for the subsistence sector to vanish, further growth raises wages. Hence, this change in the structure of the economy leads to a reduction in the intensity of the labor–capital conflict.
The dual economy model implies that growth rates rise over time and fall after the exhaustion of the labor surplus which is consistent with the stylized fact of economic growth.     

Non-scale endogenous growth effects of subsidies for exporters

We built a general equilibrium endogenous growth model in which final goods are produced either in the relatively skilled-labour intensive exports sector or in the relatively unskilled-labour intensive domestic sector. We show that, by affecting the technological-knowledge bias, subsidies explain the simultaneous rise in the exports sector, the skill wage premium and the economic growth rate. Then, to shed light upon the causal nexus between production-related subsidies and exports, we use a Portuguese longitudinal database (1996–2003) and implement a propensity score matching approach. Empirical results seem to prove the theoretical predictions: subsidies generate the rise in the wage premium of exporters and the increase in the relative size of export sector, even if no impact of subsidies is found in the capacity of transforming domestic firms into new exporters.     

Advantages of backwardness and forwardness with shifting comparative advantage

This paper develops a multi-sector endogenous innovation model that is able to account for the dynamics of comparative advantage of each sector within the economy. The model in this paper assumes that two kinds of learning effects exist in R&D: advantages of backwardness and forwardness. It is shown that if the economy is divided into advanced and backward sectors, in the latter sectors, the advantage of backwardness dominates, leading to cyclic repetition of comparative advantage. However, in the former sectors, the advantage of forwardness becomes more significant, so comparative advantage among these sectors stabilizes. Thus, the direction of learning spillovers has a critical effect on the dynamics of comparative advantage. Given this result, it is shown that only R&D policies for the marginal sector are effective in facilitating economic growth. If a decision is made to facilitate R&D investment within advanced sectors, R&D taxes, rather than subsidies, should be imposed on this marginal sector. Moreover, it is shown that trade liberalization does not affect the intrinsic dynamics of comparative advantage among surviving sectors in the economy if the locus of this marginal sector does not change significantly after trade liberalization.     

A welfare economic analysis of labor market policies in the Harris–Todaro model

This paper presents a welfare economic analysis of the benefits of various labor market policies in the Harris–Todaro labor market model. The policies considered are a policy of modern sector job creation, which I call modern sector enlargement (MSENL); a policy of rural development, which I call traditional sector enrichment (TSENR); and a policy of wage limitation in the urban economy, which I call modern sector wage restraint (MSWR). First, I analyze the inequality effects of these policies. I then perform two welfare economic analyses, the first based on summary measures of labor market conditions (total labor earnings, unemployment, inequality of labor incomes, and poverty rates) and the second based on dominance analysis in the labor market, in both cases assuming that the costs are borne elsewhere. The results of the welfare analyses are compared, and it is shown that TSENR unambiguously increases welfare in the labor market using both approaches, the other policies yield ambiguous results, and no policy is unambiguously welfare-decreasing.     

Rethinking Land Reform in East Asia: Egalitarian or Inegalitarian?

Taking a historical and comparative view, we explore the long debated cause of the spectacular economic successes of East Asia using land reforms in China and Japan during the 1940-50s. Examining the approach to land reform embodied by technocrats such as Liu Shaoqi in China and Wada Hiroo in Japan in addition to the implementation mechanisms of the policies they adopted, we show that the land reforms developed characteristics of dynamic factor endowment according to the Engerman-Sokoloff hypothesis. Fairly equal land redistribution led to political power equality and improved agricultural productivity and income equality, which is conducive to long-term economic development and the prevention of the Kuznets effect ex ante. Nevertheless, factors such as initial exogenous shocks, insufficient scale of family farming, persistent government support and consequential interest groups obstruct sustainable development of the agricultural sector as well as the generalization of East Asian experiences. Equality or inequality is essentially a policy choice in addition to being a long-term ex post evaluation of the reforms.     

A general equilibrium analysis of production subsidy in a Harris-Todaro developing economy: an application to India

Since 1950s India has advocated import substituting industrialization policies to promote its manufacturing sector. The end result was creation of a dual economy: highly favored manufacturing sector with high and rigid wages and neglected agricultural sector with low wages and poverty. Because of the higher wages in the manufacturing sector, the rural laborers migrate to the urban sector, a typical characteristic of the Harris-Todaro developing economy. Realizing this crisis, the Indian government recently initiated policies to boost agricultural production to curb the labor migration and improve the welfare of the rural population. In this study, we develop a computable general equilibrium (CGE) model for India by incorporating Harris-Todaro economic characteristics of unemployment, labor migration, farm dependant population, and labor-intensive agriculture. We use the model to analyze the effects of agricultural production subsidy policies on employment, factor price, output price, output levels, and welfare in agricultural and manufacturing sectors. Our findings show that agricultural production subsidy increases agricultural production, reduces unemployment, raises the wage rate in the agriculture sector, augments the consumption among the rural and urban households, and increases the rental rate for capital in agricultural sector.     

International Trade,Migration and Unemployment – The Role of Informal Sector

This paper provides an elaborate general equilibrium framework by including informal economic activities in a model of trade, migration and unemployment. Existence of informal activities is critical in generating positive employment effects of liberal trade policies. Following a tariff cut informal wage increases and rate of unemployment goes down under reasonable conditions. Next we generalize the benchmark model to capture the phenomenon of sequential migration: from agriculture to urban informal sector, and then to urban formal sector. Positive employment effect of reformatory trade policy partly owes to the fact that the presence of informal sector directly reduces the cost of migration and, hence, further induces the process of outmigration from agricultural sector. The paper also extends the benchmark model to include both informal intermediate and final good.     

India's New Economic Policy of 1991 and its Impact on Women's Poverty and AIDS

This paper examines the effects of current policies intended to liberalize the Indian economy and facilitate globalization on women close to poverty. The New Economic Policy of 1991 included standard structural adjustment measures including the devaluation of the rupee, increase in interest rates, reduction in public investment and expenditure, reduction in public sector food and fertilizer subsidies, increase in imports and foreign investment in capital-intensive and high-tech activities, and abolition of the cash compensatory support for exports. These policies have resulted in increased urbanization, and fewer job opportunities for women in the formal sector. Such conditions increase poverty for women in particular. As a result, many women flow into cities looking for work in the informal sector. This may have increased numbers of women in sex work, for lack of better economic opportunity. Sufficient data are not available to confirm whether HIV infection rates have risen as a result; however, the evidence suggests there may be a relationship between macroeconomic policies and health outcomes.     

Economic liberalization and wage inequality in the presence of labour market imperfection

This paper is purported to analyze the consequences of liberalized economic policies on the skilled–unskilled wage inequality in the developing countries using a three sector general equilibrium model reasonable for at least a few developing economies. The analysis of the paper has found that the wage inequality rises unambiguously due to a reduction of import tariff from the low-skill manufacturing sector. However, an inflow of foreign capital produces a favourable effect on the wage inequality under a reasonable factor intensity condition. Interestingly, contrary to the common wisdom, a policy of labour market reform may raise the competitive unskilled wage and improve wage inequality under reasonable condition.     

边际工资补贴对区域经济的影响

The main research of this paper is the regional effects of marginal wage subsidies. Some regional economic issues are discussed such as production scales, operating profits, industry distribution, and expenditure distribution across the rich and poor regions. It is proven that, marginal wage subsidies improve the employment and raise the industrial share of the poor region, but meanwhile the expenditure share in the rich region increases for marginal wage subsidies. It is also showed that, the relationship between the effectiveness of marginal wage subsidies and the level of openness to trade is ambiguous when the wage level is very high, however, if the wage level is low enough thus marginal wage subsidies can cause relatively large employment increase, marginal wage subsidies cooperating with freer trade policy would be more effective.      

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.     

Is growth of services an obstacle to productivity growth? A comparative analysis

The relationship between economic structure and productivity growth has been a subject of increasing interest over recent decades. The innovative focus of this paper concerns the role of the service sector in this relationship. Services play a core role in advanced economies, both from a quantitative and a strategic point of view. However, empirical research in this area lies considerably behind the research into the agricultural and manufacturing sectors. This paper focuses on the impact of tertiarisation on overall productivity growth, using a sample of 37 OECD countries in the period between 1980 and 2005. The results partially refute traditional knowledge on the productivity of services. Contrary to what conventional theories suggest, this research demonstrates that several tertiary activities have shown dynamic productivity growth rates, while their contribution to overall productivity growth plays a more important role than was historically believed.     

The sequencing of reform policies in China's agricultural transition*

This paper provides evidence regarding gains due to agricultural market liberalization in China. We empirically identify the different effects that incentive and farm restructuring reforms and gradual market liberalization have on China's agricultural economy during its transition period. We find that average gains within the agricultural sector due to reforms that improved incentives and increased decision‐making authority of producers exceed gains due to market liberalization by a large margin. Our method of analyzing the effects of transition policies on economic performance can be generalized to other reform paths in other transition economies.     

产业政策对企业间工资差距的影响—来自中国工业企业的经验证据

中国产业政策的执行对企业间工资差距有何影响?文章首先考虑加入了产业政策因素的异质性企业模型,从理论上将产业政策对企业工资影响分解为补贴转移效应与竞争效应两种机制,并提出如下假说:企业将部分政策补助用于生产,此时支付的更多工资等同于财政的直接补贴;同时,企业工资水平也取决于企业的生产效率,产业政策通过促进或抑制行业竞争改变企业效率,从而对企业的工资水平产生一种间接影响,即竞争效应.使用1998?2007年中国工业规模以上企业数据对理论假说进行实证检验,可以发现:"中国式"产业政策抑制企业效率带来的负向竞争效应超过了正向的补贴转移效应,最终造成了企业工资水平下降;然而,一旦产业政策的施行促进了行业竞争,竞争效应则为正,那么企业的工资水平也会随之提高.文章研究的结论有助于理解经济改革过程中产业政策对企业工资的影响,对推进企业工资体制改革也具有启示意义.