efficient search on the job and the business cycle the paper develops a model of directed search on the job in which transitions of workers between unemployment and employment and across employers are driven by heterogeneity in the quality of firm worker matches the equilibrium is such that the agents value and policy functions are independent of the endogenous distribution of workers across employment states hence the model can be solved outside of the steady state and used to measure the effect of cyclical productivity shocks on the labor market productivity shocks are found to generate large fluctuations in workers transitions unemployment and vacancies when matches are experience goods but not when matches are inspection goods

structural change in an open economy we study the importance of international trade in structural change our framework has both productivity and trade cost shocks and allows for non unitary income and substitution elasticities we calibrate our model to investigate south korea s structural change between 1971 and 2005 we nd that the shock processes propagated through the model s two main transmission mechanisms non homothetic preferences and the open economy explain virtually all of the evolution of agriculture and services labor shares and the rising part of the hump shape in manufacturing counterfactual exercises show that the role of the open economy is quantitatively important for explaining south korea s structural change

the drivers of structural change the main goal of this paper is to provide an integrated survey of the literature devoted to identifying the drivers of structural change broadly defined as the process of reallocation of economic activity across the three broad sectors agriculture manufacturing and services using the ggdc 10 sector database this paper first presents the empirical facts associated with structural change in different regions of the world that is europe and the usa asia latin america and africa then reviews four determinants of structural change i changes in income ii changes in relative sectoral prices iii changes in input output linkages and iv changes in comparative advantage s via globalization and trade

the informal sector and tax on employment a dynamic general equilibrium investigation abstract this paper elaborates on the evolution of the informal sector vis a vis the evolution of agricultural and formal sectors in a developing country economy in process of growth the analytical contribution of this essay extends the ramsey theory of growth into a framework that includes an informal sector and household preferences that display engel effects in agricultural and in informally produced goods besides showing that the informal sector s importance diminishes over time as the country s economy grows the results from the model demonstrate that a country can successfully reduce its informal employment by reducing tax on employment in the formal sector

the sullying effect of recessions previous work has established that recessions involve a cleansing effect so that in downturns only high productivity jobs remain but empirical evidence suggests job quality is procyclical jobs created in recessions are likely to be low paying and temporary this paper modifies previous models by adding on the job search which leads to an additional sullying effect calibration of the model suggests this offsetting sullying effect is likely to be much larger than the cleansing effect and can account for the procyclical match quality we observe in the data

agricultural distortions structural change and economic growth a cross country analysis taxing agriculture to mobilize resources for industrialization has been a widely used development strategy using novel cross country time series data sets with direct measures of agricultural taxation we examine how a policy bias against agriculture affects the speed of convergence in income per capita structural change and economic growth we find that distortionary agricultural policies in poor economies can account for the emergence of convergence clubs in our sample by significantly retarding their structural transformation and economic growth overall we find no evidence suggesting that policies that discriminate against agriculture have been beneficial for long term economic growth

structural transformation and the deterioration of european labor market outcomes this paper examines hours worked in continental europe and the united states from 1956 to 2003 the empirical work establishes two results first hours worked in europe decline by almost 45 percent compared to the united states over this period second this decline is almost entirely accounted for by the fact that europe develops a much smaller market service sector than the united states a simple model of time allocation is used to understand these patterns i find that relative increases in taxes and technological catch up can account for most of the differences between the european and american time allocations over this period

transportation costs agricultural productivity and cross country income differences i document large difierences in domestic transport costs and transportation infrastructure across nations the richest countries have 5 times lower transport costs and 32 times more infrastructure per capita than the poorest countries of the world are these difierences a source of aggregate labor productivity difierences across nations using a three sector two region general equilibrium model i show that high transport costs can distort the allocation of resources not only across geographically dispersed production units within sectors but also between agriculture and non agriculture taking as given the observed difierences in transportation costs and transportation infrastructure per capita i quantify the role of transportation for cross country income difierences the calibrated model produces an income disparity of 7 5 between the 5 rich and 5 poor countries this corresponds to an improvement of 50 relative to the disparity predicted by a two sector model of agriculture and non agriculture furthermore the efiects of advancements in transportation are non linear the elasticity of aggregate labor productivity with respect to transport labor productivity in the poorest nations is 6 times higher than in the richest ones the efiects of transport frictions are even more pronounced when restrictions to regional migration are introduced

matching workers and jobs cyclical fluctuations in match quality using national longitudinal survey of youth data on tenure and wages this article analyzes the extent to which the level of job mismatching varies over the business cycle and how it is dealt with by the labor market i find significant cyclical variation in job match quality and an internalization of the variation by the labor market through wages mismatching occurs more during recessions but is primarily captured in starting wages the evidence suggests the cyclical phenomenon is one of general mismatching rather than an increased number of stopgap jobs during recessions

the cyclicality of the user cost of labor abstract the user cost of labor is the expected difference between the present discounted value of wages paid to a worker hired in the current period and that paid to a worker hired in the next period analogous to the price of any long term asset the user cost not wage is the relevant price for a firm that is considering adding a worker i construct its counterpart in the data and estimate that it is substantially more procyclical than average wages or wages of newly hired workers i demonstrate an application of the finding using the textbook search and matching model

the food problem and the evolution of international income levels in most poor countries large fractions of land labor and other productive resources are devoted to producing food for subsistence needs we show that a model incorporating the food problem can provide new and useful insights into the evolution of international income levels in particular we find that the food problem can explain why some countries started to realize increases in per capita output more than 250 years later in history than others we also show that the food problem has important implications for growth miracles and the speed at which a country converges to its balanced growth path

on the heterogeneity of sectoral growth and structural dynamics evidence from austrian manufacturing industries this article studies the factors driving structural dynamics across austrian manufacturing industries using a structural vector autoregressive model svar framework we identify sectoral labour productivity and demand shocks that are orthogonal to aggregate shocks we analyse the sectoral impulse response patterns and find that the effect of industry labour productivity shocks on industry output growth is quite heterogeneous we devise a taxonomy that allows us to classify industries according to the effect productivity and demand shocks have on output growth we also show that productivity shocks are quite heterogeneous not just across industries but also over time whereas shocks to sectoral demand growth are more systematic we test the taxonomy in a panel regression and are able to confirm our sector specific findings industry demand shocks and aggregate productivity and demand shocks lead always to an increase in industry output and industry employment

the role of product market regulations in the process of structural change abstract the sectoral allocation of labor differs considerably across developed economies even in the presence of similar patterns of structural change a general equilibrium model that captures the stylized facts of structural change is presented in this framework economy wide product market regulations hinder the development of dynamic sectors such as service industries this is consistent with the negative cross country relationship between product market regulations and the service employment share discussed in the paper additionally the model suggests that higher service prices and rents in regulated economies reduce labor supply providing a rationale for the negative association between product market regulations and the employment rate previously found in the literature

global population growth technology and malthusian constraints a quantitative growth theoretic perspective we structurally estimate a two sector schumpeterian growth model with endogenous population and finite land reserves to study the long run evolution of global population technological progress and the demand for food the estimated model closely replicates trajectories for world population gdp sectoral productivity growth and crop land area from 1960 to 2010 projections from 2010 onwards show a slowdown of technological progress and because it is a key determinant of fertility costs significant population growth by 2100 global population reaches 12 4 billion and agricultural production doubles but the land constraint does not bind because of capital investment and technological progress

structural transformation marketization and household production around the world we provide evidence on household and market production in 36 countries since 1960 on average the household sector accounts for almost half of total hours worked as gdp per capita increases the employment share of household production in total hours worked initially declines and then hardly changes while the employment shares of market goods and services decrease and increase estimating the value added of household production yields similar patterns labor productivity of household production is lower than and positively correlated with that in the market these findings can be used as an input into quantitative work involving household production

cashier or consultant entry labor market conditions field of study and career success we measure impacts of entry conditions on labor market outcomes for the us college graduating classes of 1974 2011 a large recession reduces initial earnings by 10 through full time work and wag

conformism and structural change using a simple multisector model of endogenous growth we show that commodity specific consumption externalities can be a source of structural change when the degrees of consumption externalities are different between goods each sector grows at a different rate however the aggregate economy exhibits balanced growth in that capital stock and expenditure grow at the same constant rate a three sector version of our model may reconcile kaldor s stylized facts with empirically plausible profiles of industrial structure transformation

job duration over the business cycle evidence from the national longitudinal survey of youth nlsy suggests that the cyclicality of job duration depends on the worker s prior and future employment status for example among matches formed with previously nonemployed workers those that end with the worker returning to nonemployment display procyclical duration in contrast matches that end because the worker switches to another job have countercyclical duration moreover differences in starting wages do not account for these patterns

economic growth size of the agricultural sector and urbanization in africa this paper uses variations in international commodity prices and rainfall to construct instrumental variables estimates of the within country effect that changes in the size of the agricultural sector and gdp per capita growth have on the urbanization rate for a panel of 41 african countries during the period 1960 2007 the paper s three main findings are that i decreases in the share of agricultural value added lead to a significant increase in the urbanization rate ii conditional on changes in the share of agricultural value added gdp per capita growth does not significantly affect the urbanization rate iii increases in the urbanization rate had a significant negative average effect on gdp per capita growth

trading down and the business cycle abstract we document two facts first during the great recession consumers traded down in the quality of the goods and services they consumed second the production of low quality goods is less labor intensive than that of high quality goods when households traded down labor demand fell increasing the recession s severity we find that the trading down phenomenon accounts for a substantial fraction of the decline in u s employment in the recent recession we show that embedding quality choice in a business cycle model improves the model s amplification and comovement properties

structural transformation and comparative advantage implications for small open economies data from the last half century show that revealed comparative advantage in agriculture manufacturing is negatively positively associated with the rate of decline in labour share in agriculture motivated by this finding the author constructs and calibrates a simple open economy model where there is learning by doing in manufacturing and industry supplied inputs to agricultural production this paper focuses on the effects of comparative advantage and learning by doing on structural transformation and calibrate the model to the us and the uk data to estimate key parameters of the model quantitative experiments show that holding constant other factors a small difference in a country s comparative advantage can account for a large variation in structural transformation for open economies which does not require nearly as much differential productivity growth as in closed economy models

growth sectoral composition and the evolution of income levels abstract we assert that the endowments of production factors cause cross country differences in gdp by generating disparities in the sectoral composition we characterize the dynamic equilibrium of a two sector endogenous growth model with several consumption goods that are subject to minimum consumption requirements in this model economies with the same fundamentals but different endowments of capitals will end up growing at a common rate although the long run sectoral composition of gdp will be different because the total factor productivity tfp in multisector models depends on sectoral structure these differences in capital endowments will also generate sustained differences in tfps

structural change in a multisector model of growth we study a multi sector model of growth with differences in tfp growth rates across sectors and derive sufficient conditions for the coexistence of structural change characterized by sectoral labour reallocation and constant aggregate growth path the conditions are weak restrictions on the utility and production functions commonly applied by macroeconomists we present evidence from us two digit industries that is consistent with our predictions about structural change and successfully calibrate the historical shift from agriculture to manufacturing and services we show quantitatively that reasonable deviations from our conditions do not have a big impact on the properties of the model

interpreting panel data on job tenure tenure responses in the panel study of income dynamics psid and the national longitudinal surveys are often inconsistent with calendar time these inconsistencies pose special problems in the psid because job changes cannot be identified directly so researchers must infer them from error ridden tenure data we use alternative rules for partitioning psid data into jobs and then estimate several wage and mobility models to assess the sensitivity of parameter estimates to the partitioning method we also assess the importance of replacing raw tenure data with imputed measures that are internally consistent

is physical investment the key to china s growth miracle i introduction unprecedented high rates of economic growth in china over the past decades have stimulated a wide interest among researchers and policymakers in establishing whether rapid physical capital accumulation is the main driving force behind such outstanding growth performance and whether it suffices to sustain china s rapid economic growth in the next decades by exploiting the different implications that the relation between investment and growth has according to the neoclassical paradigm pioneered by solow 1956 and cass 1965 and endogenous growth models of the ak type this paper will attempt to test the empirical validity of the ak model for the chinese economy the main difference between the ak model and the solow model is that the former allows for the existence of constant returns to a sufficiently broad definition of capital which in turn enables investment to have a long run impact on growth in contrast under the neoclassical paradigm diminishing returns to reproducible capital leads inevitably to only temporary growth effects along the transitional path and long run growth depends on exogenous technological progress constant returns to reproducible capital characterizing linear accumulation driven models may stem from different sources like 1 positive externalities as in the models of frankel 1962 lucas 1988 and romer 1986 2 bounding the marginal product of reproducible factors away from zero jones and manuelli 1990 or 3 the existence of constant returns to all accumulable factors characterizing the different sectors of the economy barro 1990 rebelo 1991 according to standard linear accumulation driven models steady state output growth directly depends on the total investment rate in physical capital hence the dynamics of output growth should behave similarly to the dynamics of the investment rate as noted by jones 1995a a hallmark of the endogenous growth literature implies that any large permanent change in total investment should translate into a permanent change in long run growth in the same direction jones 1995a constitutes the first attempt at testing the ak type growth models using a time series framework his sample includes 15 organization for economic co operation and development oecd countries with data spanning over the period 1950 1988 he shows that the investment share in producer durables and to a lesser extent the total investment rate presents an upward deterministic trend and is generally found nonstationary when augmented dickey fuller adf 1979 tests are applied in contrast rates of economic growth remain fairly stable jones then claims that the fact that output growth rates exhibit no large permanent movements imposes a strong and testable restriction on endogenous growth models if an endogenous growth model predicts that permanent movements in some variable x have permanent effects on growth then either a x must exhibit no large persistent movements or b some other variable or variables must also have persistent effects on growth that offset the movements of x in a way that is determined by the endogenous growth model jones 1995a 502 despite the considerable effort using this framework to try to test the empirical validity of ak type growth models for the oecd countries jones 1995a li 2002 romero avila 2006 no work has been conducted along these lines for the chinese economy this is surprising because this issue should be particularly important for a country like china which is expected to become the leading economy in the coming decades with a population more than 1 3 billion which is more than four times the population of the united states this paper tries to fill this gap in the literature by applying jones test to the chinese economy over the past five decades the chinese economy has shown spectacular growth performance with an average annual growth rate of real per capita gross domestic product gdp equal to 6

changes in sectoral composition associated with economic growth in this paper the author uses dynamic general equilibrium methods to examine the interrelationship between sectoral composition and growth she shows that growth is affected by sectoral composition and vice versa the model is basically a solow model of sustained growth with multiple consumption goods and nonhomothetic preferences each consumption good is produced using different factor intensities the rate of exogenous technological change is different in each sector nonhomotheticity of preferences drives the result that sectoral composition affects growth rates copyright 1997 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

the unemployment volatility puzzle is wage stickiness the answer i discuss the failure of the canonical search and matching model to match the cyclical volatility in the job finding rate i show that job creation in the model is influenced by wages in new matches i summarize microeconometric evidence and find that wages in new matches are volatile and consistent with the model s key predictions therefore explanations of the unemployment volatility puzzle have to preserve the cyclical volatility of wages i discuss a modification of the model based on fixed matching costs that can increase cyclical unemployment volatility and is consistent with wage flexibility in new matches

evidence of the empirical relevance of the infant industry argument for the protection of brazilian ethanol production abstract the infant industry argument for protection of import competing industries has a long and almost entirely theoretical history in the literature in this paper the empirical evidence of infant industry dynamics in the brazilian ethanol industry is investigated in brazil ethanol has developed into a primary automotive fuel over the past 18 years this import substitute is attractive because it allows decreased dependence on international oil supplies while at the same time it addresses environmental concerns because it is a clean burning renewable fuel while ethanol was initially a high cost alternative to imported oil observed cost reductions have led to an increased belief that this industry may in fact warrant the subsidization it has received because of infant industry reasons the results of this study suggest that there is no empirical evidence of economies of scale and very little technical change there appears to be no empirical validity to the infant industry argument for subsidization of the brazilian ethanol industry

the environmental kuznets curve and the structural change hypothesis we provide a very simple macroeconomic investigation of the role that structural changes might play in generating inverted u shaped income pollution relationships differently from previous research which mainly focuses on empirical static or general equilibrium models we develop a standard balanced growth path bgp analysis we show that along the bgp equilibrium an inverted u shaped income pollution relationship may occur as a response to structural changes but whether this is the case or not it will crucially depend upon the magnitude of a production externality parameter moreover we show that the negative relationship between income and pollution can only be a transitory phenomenon and in the long run pollution will increase as income rises generating overall an n shaped pattern

global economic growth and agricultural land conversion under uncertain productivity improvements in agriculture we study how stochasticity in the evolution of agricultural productivity interacts with economic and population growth at the global level we use a two sector schumpeterian model of growth in which a manufacturing sector produces the traditional consumption good and an agricultural sector produces food to sustain contemporaneous population agriculture demands land as an input itself treated as a scarce form of capital in our model both population and sectoral technological progress are endogenously determined and key technological parameters of the model are structurally estimated using 1960 2010 data on world gdp population cropland and technological progress introducing random shocks to the evolution of total factor productivity in agriculture we show that uncertainty optimally requires more land to be converted into agricultural use as a hedge against production shortages and that it significantly affects both optimal consumption and population trajectories

the u s demographic transition between 1800 and 1940 the u s went through a dramatic demographic transition in 1800 the average woman had 7 children and 94 percent of the population lived in rural areas by 1940 the average woman birthed just 2 kids and only 43 percent of populace lived in the country the question is what accounted for this shift in the demographic landscape the answer given here is that technological progress in agriculture and manufacturing explains these facts

services sector and economic growth in india this study examines the long run equilibrium and short run dynamic relationship between services sector and gross domestic product gdp and between services and nonservices sectors in india the model is estimated using the optimal single equation and the maximum likelihood system estimators all the estimators consistently suggest the cointegrating relationship between services sector and gdp as well as between services and nonservices sectors the estimates of long run elasticity parameters are statistically significant and dimensionally consistent across the estimators the conventional cumulative sum cusum and the new cusum and moving sum mosum tests suggest the stability of the equilibrium residuals and reinforce the cointegrating relationship between the model series the error correction model provides some support for unidirectional granger causality from services sector to gdp the impulse response and variance decomposition analyses instead suggest the bidirectional causality between servic

can total factor productivity explain value added growth in services abstract this paper examines the factors responsible for generating the services led growth witnessed in the indian economy during 1980 2005 a sectoral growth accounting exercise shows that total factor productivity tfp growth was the fastest for services moreover this tfp increase was significant in accounting for service sector value added growth a growth model with agriculture industry and services as three principal sectors is calibrated to indian data using sectoral tfp growth rates the baseline model performs well in accounting for the evolution of value added shares and their growth rates but is unable to capture sectoral employment share trends the performance of the model with respect to value added shares improves when the post 1991 increase in service sector tfp growth following the inception of market based liberalization reforms is accounted for a modified version of the model with public capital can better track trends in sectoral employment shares

unemployment fluctuations match quality and the wage cyclicality of new hires we revisit the issue of the high cyclicality of wages of new hires we show that after controlling for composition effects likely involving procyclical upgrading of job match quality the wages of new hires are no more cyclical than those of existing workers the key implication is that the sluggish behaviour of wages for existing workers is a better guide to the cyclicality of the marginal cost of labour than is the high measured cyclicality of new hires wages unadjusted for composition effects key to our identification is distinguishing between new hires from unemployment versus those who are job changers we argue that to a reasonable approximation the wages of the former provide a composition free estimate of the wage flexibility while the same is not true for the latter we then develop a quantitative general equilibrium model with sticky wages via staggered contracting on the job search and heterogeneous match quality and show that it can account for both the panel data evidence and aggregate evidence on labour market volatility

modernization of agriculture and long term growth abstract this paper develops a two sector model that illuminates the role played by agricultural modernization in the transition from stagnation to growth when agriculture relies on traditional technology industrial development reduces the relative price of industrial products but has a limited effect on per capita income because most labor has to remain in farming growth is not sustainable until this relative price drops below a certain threshold thus inducing farmers to adopt modern technology that employs industry supplied inputs once agricultural modernization begins per capita income emerges from stasis and accelerates toward modern growth our calibrated model is largely consistent with the set of historical data we have compiled on the english economy accounting well for the growth experience of england encompassing the industrial revolution