government spending effects in low income countries abstract despite the voluminous literature on fiscal policy very few papers focus on low income countries lics this paper develops a new keynesian small open economy model to show analytically and numerically that several prevalent features of lics dependence on external financing public investment inefficiency and a low degree of home bias in public investment play important roles in government spending effects external financing increases the resource envelope mitigating the crowding out effects but it tends to appreciate the real exchange rate lowering traded output although capital scarcity in lics implies high returns to public capital low marginal investment efficiency can substantially dampen the output multiplier also public investment may not be effective in stimulating output in the short run as lics often rely on imports to a large extent to carry out public investment projects weakening its role as a short run demand stimulus

intertemporal labor supply and human capital accumulation we solve and estimate a dynamic model that allows agents to optimally choose their labor hours and consumption and that allows for both human capital accumulation and savings estimation results and simulation exercises indicate that the intertemporal elasticity of substitution is much higher than the conventional estimates and the downward bias comes from the omission of the human capital accumulation effect the human capital accumulation effect renders the life cycle path of the shadow wage relatively flat even though wages increase with age hence a rather flat life cycle labor supply path can be reconciled with a high intertemporal elasticity of substitution

output dynamics in real business cycles models the time series literature reports two stylized facts about output dynamics in the united states gnp growth is positively autocorrelated and gnp appears to have an important trend reverting component this paper investigates whether current real business cycle rbc models are consistent with these stylized facts many rbc models have weak internal propagation mechanisms and must rely on external sources of dynamics to replicate both facts models that incorporate labor adjustment costs are partially successful they endogenously generate positive autocorrelation in output growth but they need implausibly large transitory shocks to match the trend reverting component in output

trade wages and the political economy of trade protection evidence from the colombian trade reforms abstract worker industry affiliation plays a crucial role in how trade policy affects wages in many trade models yet most research has focused on how trade policy affects wages by altering the economy wide returns to a specific worker characteristic i e skill or education rather than through worker industry affiliation this paper exploits drastic trade liberalizations in colombia in the 1980s and 1990s to investigate the relationship between protection and industry wage premiums we relate wage premiums to trade policy in an empirical framework that accounts for the political economy of trade protection accounting for time invariant political economy factors is critical when we do not control for unobserved time invariant industry characteristics we find that workers in protected sectors earn less than workers with similar observable characteristics in unprotected sectors allowing for industry fixed effects reverses the result trade protection increases relative wages this positive relationship persists when we instrument for tariff changes our results are in line with short and medium run models of trade where labor is immobile across sectors or alternatively with the existence of industry rents that are reduced by trade liberalization in the context of the current debate on the rising income inequality in developing countries our findings point to a source of disparity beyond the well documented rise in the economy wide skill premium because tariff reductions were proportionately larger in sectors employing a high fraction of less skilled workers the decrease in the wage premiums in these sectors affected such workers disproportionately

decomposing learning by doing in new plants the paper examines learning by doing in the context of a production function in which the other arguments are labor human capital physical capital and vintage as a proxy for embodied technical c

organizational capital learning by doing and investment volatility this paper addresses the issue of plant level investment volatility in the context of a purely convex model where fluctuations are driven by technological shocks the aim is to assess the role of learning by doing in reproducing the well documented non smooth investment dynamics at the plant level instead of relying on typical non convexities fixed costs or indivisibilities used to account for lumpy investment behavior the concept of organizational capital is essential in the analysis and it provides the channel through which learning affects production our results indicate that learning by doing constitutes a potentially important source of investment volatility at the plant level and that one should not believe that convex models of investment necessarily deliver smooth dynamics

implicit contracts life cycle labor supply and intertemporal substitution the implicit contract model is a serious alternative to the spot market interpretation of the labor market however its usefulness has been limited because the wage is unobserved and hence it has not been possible to estimate an intertemporal frisch supply elasticity for the model using microdata in this article we show that one can estimate this elasticity from microdata within the context of the implicit contract model under relatively weak assumptions based on consumer theory we implement our approach on two micro data sets and for both obtain a reasonably precise elasticity estimate of approximately 1 0

the effect of work experience on female wages and labour supply this paper develops and implements a semiparametric estimator for investigating with panel data the importance of human capital and time nonseparable preferences to females when aggregate shocks are present it provides a set of conditions for making statistical inferences about agents expectations of their correlated future choices from a short panel under the assumption that observed allocations are pareto optimal a dynamic model of female labour supply and participation is estimated in which experience on the job raises future wages and time spent off the job in the past directly affects current utility or indirectly through productivity in the nonmarket sector

assessing policies to equalize opportunity using an equilibrium model of educational and occupational choices abstract the inter generational correlation of education in the u s is tremendous for instance in psid data from 1990 young males with college educated parents had a 70 chance of attending college but those with high school drop out parents had only a 15 chance in this paper we analyze the impact of college attendance bonus schemes designed to increase college attendance rates and pv of lifetime income of youth from disadvantaged backgrounds of course policies that increase the supply of skilled labor may reduce the college wage premium see heckman et al heckman james lochner lance and taber christopher explaining rising wage inequality explorations with a dynamic equilibrium model of labor earnings with heterogeneous agents review of economic dynamics 1 1998a 1 58 heckman james lochner lance and taber christopher general equilibrium treatment effects a study of tuition policy american economic review 88 2 1998b 381 386 this may have the unintended consequence of wiping out most of the gains to the targeted groups the strength of such equilibrium effects on wages depends on the substitutability between different types of labor thus it is important to evaluate education subsidies within an equilibrium framework that allows for flexible patterns of substitution across factor inputs this is exactly what we do here using an overlapping generations equilibrium model of the u s labor market fit to psid data from 1968 to 1996 the model allows for imperfect substitution among types of labor differentiated by education gender age and ten 1 digit level occupations a much finer differentiation than has been considered in prior work we find that very large college attendance bonuses are necessary to equate college attendance rates between youth whose parents had only high school degrees or were high school dropouts and youth whose parents attended at least some college the size of these bonuses far exceeds any reasonable measure of college costs suggesting the costs the bonuses overcome are primarily psychic or effort costs for example youth from disadvantaged backgrounds may be poorly prepared for college this suggests that bonuses targeted at college age youth are probably a very inefficient way to reduce inequality earlier intervention is likely called for

lag length selection and tests of granger causality between money and income one of the most widely accepred relationships in macroeconomics is the positive relationship between the rate of growth of the money supply and the rate of growth of income a diversity of opinion arises however with the attempt to identify a causal relationship between these variables while friedman and schwartz 1963 initiated the empirical investigation of money income causality sims 1972 made the most significant contribution to this literature with a practical application of the criterion developed by granger 1969 for identifying a causal relationship since the appearance of sims s approach and an alternative one advanced by sargent 1976 many researchers have applied these techniques to the investigation of the causal relationship between money and income l with two exceptions hsiao 1981 and mcmillin and fackler 1984 these researchers have arbitrarily chosen the lengths of their distributed lags the purpose of this paper is to test for granger causality between money and income this paper differs from previous work in that considerably more attention is focused on the effect of the lag specification on the test results in particular we investigate the extent to which rules of thumb arbitrary lag specifications and

imperfect mobility of labor across sectors a reappraisal of the balassa samuelson effect this paper investigates the relative price and relative wage effects of a higher productivity in the traded sector compared with the non traded sector in a two sector open economy model with imperfect substitutability in hours worked across sectors the balassa samuelson 1964 model predicts that a rise in the sectoral productivity ratio by 1 raises the relative price of non tradables by 1 while leaving the non traded wage traded wage ratio unchanged applying cointegration methods to a panel of fourteen oecd countries over the period 1970 2007 our estimates show that the relative price rises by only 0 78 and the relative wage falls by 0 27 while our first set of empirical findings cast doubt on the quantitative predictions of the balassa samuelson model our second set of evidence highlights the role of imperfect labor mobility the relative price responds more to a productivity differential between tradables and non tradables while the reaction of the relative wage is more muted in countries with higher intersectoral reallocation of labor we show that the ability of the two sector model to account for our evidence quantitatively relies upon two ingredients i imperfect mobility of labor across sectors and ii physical capital accumulation finally our numerical results reveal that the model predicts the relative price response fairly well and to a lesser extent the relative wage response

the hump shaped behavior of inflation and a dynamic externality we propose a general equilibrium model that explains the empirical evidence of the hump shaped response of inflation to a monetary policy shock the model replaces backward looking indexation a la christiano et al 2005 nominal rigidities and the dynamic effect of a shock to monetary policy journal of political economy 113 1 1 45 with a dynamic externality into the production function of firms the model armed with sticky wages and variable capital utilization has two offsetting effects on real marginal cost over the business cycle first increasing factor prices raise real marginal cost in response to an expansionary monetary policy shock in the intermediate run second a dynamic externality reduces real marginal cost in the short run because it raises productivity in response to an increase in output following the shock overall the resulting short run decrease and intermediate run increase in marginal cost replicate the hump shaped behavior of inflation under purely forward looking price and wage phillips curves

a comparison of lag length selection techniques in tests of granger causality between money growth and inflation evidence for the us 1959 86 this paper employs the granger test to examine the causal relationship between growth in the money supply and inflation for the us over the period 1959 to 1986 alternative procedures including bo

dynamic complementarities a quantitative analysis abstract this paper considers the importance of dynamic complementarities as an endogenous source of propagation in a dynamic stochastic economy dynamic complementarities link the stocks of human and organizational capital which are influenced by past levels of economic activity to current levels of productivity we supplement an otherwise standard dynamic business cycle model with both contemporaneous and dynamic complementarities the model is calibrated using estimates of these effects from both micro and aggregate data our quantitative analysis identifies empirically relevant dynamic complementarities as a source of propagation for both technology and taste shocks

unemployment insurance recall expectations and unemployment outcomes this paper empirically examines the importance of explicitly accounting for the layoff rehire process in the analysis of unemployment outcomes in the united states we find that the spells of individuals who initially expect to be recalled account for much more of the unemployment of unemployment insurance ui recipients than do spells actually ending in recall our results indicate that the recall and new job escape rates from unemployment have quite different time patterns and are often affected in opposite ways by explanatory variables we also find that the probability of leaving unemployment both through recalls and new job finding increases greatly around the time that ui benefits lapse over the past fifteen years many studies have empirically analyzed the determinants of individual unemployment spell durations in the united states much of this literature has used a job search framework in which the unemployed are viewed as permanently displaced workers who are unattached to jobs the possibility of recall to a former job a process not requiring search has been omitted from explicit consideration in the majority of these studies 2 an explicit treatment of the layoff rehire process is necessary for a proper understanding of the determinants of unemployment durations and of the impacts of unemployment policies in the united states for at least three reasons first temporary layoffs in which workers are often rehired by their original employers are a quantitatively quite important feature of the u s labor market 3 second expectations concerning the likelihood of recall are likely to affect the responses of employers and unemployed workers to labor market interventions such as reemployment bonuses and subsidies

current real business cycle theories and aggregate labor market fluctuations hours worked and the return to working are weakly correlated traditionally the ability to account for this fact has been a litmus test for macroeconomic models existing real business cycle models fail this test dramatically we modify prototypical real business cycle models by allowing government consumption shocks to influence labor market dynamics this modification can in principle bring the models into closer conformity with the data our empirical results indicate that it does

globalization and labour market adjustment how fast and at what cost in this paper we argue that the flexibility of an economy s labour market plays a role in determining the gains from trade liberalization the level of short run adjustment costs and the relative value of these two measures to do so we describe the model introduced in davidson and matusz 2000 which allows us to solve for adjustment costs when workers vary according to ability and jobs differ in terms of the skills that they require we then report results based on simulations of this model we find that economies with sluggish labour markets have the least to gain from liberalization the reason is that while the removal of trade barriers creates large benefits they are almost completely offset by large short run adjustment costs in contrast we find that with either very flexible or very slothful labour market gains from liberalization are always significantly larger than the short run adjustment costs copyright 2000 by oxford university press

macroeconomic fluctuations and the allocation of time what are the fundamental driving forces of macroeconomic fluctuations in particular why do people spend more time working in booms and less in recessions these are basic questions of macroeconomics recent thinking has emphasized technology shifts preference shifts and changes in government purchases as likely driving forces it is useful to distinguish atemporal and intertemporal effects of the driving forces under standard assumptions the technology shift has no effect through atemporal channels because income and substitution effects exactly offset a straightforward decomposition of movements of employment attributes most of them to the atemporal effects of preference shifts

monetary policy and inflation under the crawling peg some evidence from vars for colombia abstract this paper investigates the effects of monetary policy under the crawling peg in colombia utilizing granger causality tests variance decompositions and impulse response functions from vars several alternative lag selection criteria are used to specify the lag structures of the vars variations in domestic credit appear to affect the balance of payments but not the exchange rate in colombia suggesting that the crawling peg has functioned more like a fixed than a flexible exchange rate the size of the balance of payments offset is relatively large but the models differ on its size domestic credit appears to have a weak effect on national output neither domestic credit nor the exchange rate play much of a role in explaining variation in inflation in colombia inflation appears to be primarily inertial and the result of demand shocks the results are consistent with the recent difficulties encountered in maintaining monetary targets in colombia and the persistence of inflation under contractionary monetary policy

education s role in china s structural transformation abstract we explore education s role in improving the allocation of labor between china s agricultural and nonagricultural sectors and measure the portion of china s recent growth attributable to this channel using detailed micro level data and an empirical model that allows for the endogenous selection of education and sector of employment we estimate the relationship between an individual s educational attainment sector and income we find that about 11 of aggregate growth in output per worker from 1978 to 2004 is accounted for by increased education with 9 coming through the labor reallocation channel and 2 attributable to increased within sector human capital

sectoral shifts and cyclical unemployment a substantial fraction of cyclical unemployment is better characterized as fluctuations of the frictional or natural rate than as deviations from some relatively stable natural rate shifts of employment demand between sectors of the economy necessitate continuous labor reallocation since it takes time for workers to find new jobs some unemployment is unavoidable this paper presents evidence that most of the unemployment fluctuations of the seventies unlike those in the sixties were induced by unusual structural shifts within the u s economy simple time series models of layoffs and unemployment are constructed that include a measure of structural shifts within the labor market these models are estimated and a derived natural rate series is constructed

education policy and intergenerational transfers in equilibrium this paper compares partial and general equilibrium effects of alternative financial aid policies intended to promote college participation we build an overlapping generations life cycle heterogeneous agent incomplete markets model with education labor supply and consumption saving decisions altruistic parents make inter vivos transfers to their children labor supply during college government grants and loans as well as private loans complement parental transfers as sources of funding for college education we find that the current financial aid system in the u s improves welfare and removing it would reduce gdp by two percentage points in the long run any further relaxation of government sponsored loan limits would have no salient effects the short run partial equilibrium effects of expanding tuition grants especially their need based component are sizeable however long run general equilibrium effects are 3 4 times smaller every additional dollar of government grants crowds out 20 30 cents of parental transfers

an estimate of a sectoral model of labor mobility this paper develops a model of sectoral labor mobility and tests its main implications the model nests two distinct hypotheses on the origin of mobility a sectoral shocks and b worker employer mismatch we estimate the relative importance of each hypothesis and find that the bulk of labor mobility is caused by mismatch rather than by sectoral shift we then try to put a value on society s match specific information that is we ask to what extent the availability of the option to change jobs raises gnp we find that the mobility option raises expected earnings by roughly between 8 5 percent and 13 percent of labor earnings which translates to an increase in gnp of between 6 percent and 9 percent

learning by doing and aggregate fluctuations does the form of the accumulation technology matter abstract several authors have identified learning by doing as a mechanism capable of generating the endogenous propagation of shocks in rbc models it is shown that this endogenous propagation mechanism depends upon the dynamic structure associated with learning rather than any functional form assumptions on the accumulation technology

a dynamic analysis of educational attainment occupational choices and job search this article examines career choices using a dynamic structural model that nests a job search model within a human capital model of occupational and educational choices wage growth occurs in the model because workers move between firms and occupations as they search for suitable job matches and because workers endogenously accumulate firm and occupation specific human capital simulations performed using the estimated model reveal that both self selection in occupational choices and mobility between firms account for a much larger share of total earnings and utility than the combined effects of firm and occupation specific human capital

services outsourcing and innovation an empirical investigation we provide a comprehensive empirical analysis of the links between international services outsourcing domestic outsourcing profits and innovation using plant level data we find a positive effect of international outsourcing of services on innovative activity at the plant level such a positive effect can also be observed for domestic outsourcing of services but the magnitude is smaller this makes intuitive sense as international outsourcing allows more scope for exploiting international factor price differentials therefore giving the establishment higher profits and more scope to restructure production activities towards innovation we also find that international outsourcing has a positive effect on profitability as predicted by theory while this is not true for domestic sourcing the results are robust to various specifications and an instrumental variables analysis

autoregressive modelling and money income causality detection abstract a step wise procedure based on granger s concept of causality and abaike s final prediction error criterion is suggested as a practical means to identify the order of lags of each variable in a multivariate autoregressive process the model seems useful because it can serve as a reduced form formulation to avoid imposing often spurious or false restrictions of the model it also provides a reasonably powerful test of causality the idea is applied to u s postwar money and income data it is found that between m1 and gnp a bivariate feedback model fits the data best between m2 and gnp a one way causal model from money to income performs better diagnostic checks applied to our model seem to indicate the adequacy of our approach

foreign aid poverty reduction and democracy eradication of poverty is the most pervasive goal of donors foreign aid programmes as a result there has been much research on the degree of correlation between aid and poverty reduction however this work to date has shed little light on the direction of causation between the two variables using the method of granger causality and conditioning aid and poverty on the state of democracy in developing countries this study asks whether aid flows impact poverty whether poverty influences aid flows or whether causality proceeds in both directions simultaneously while the results identify no causal relationships in some of the sub samples they point to the existence of a multitude of relationships across others

a mapping of labor mobility costs in the developing world abstract estimates of labor mobility costs are needed to assess the responses of employment and wages to trade shocks when factor adjustment is costly available methods to estimate those costs rely on panel data which are seldom available in developing countries we propose a method to estimate mobility costs using readily obtainable data worldwide our estimator matches the changes in observed sectoral employment allocations with the predicted allocations from a model of costly labor adjustment we estimate a world map of labor mobility costs and we use those estimates to explore the response of labor markets to trade policy

imperfect mobility of labor across sectors and fiscal transmission abstract our paper investigates the sectoral effects of government spending shocks and highlights the role of labor mobility our var evidence for sixteen oecd countries reveals that a shock to government consumption by 1 of gdp increases non traded value added by 0 7 of gdp and generates a decline in traded value added the value added share of non tradables rises by 0 35 of gdp thus implying that the reallocation of resources accounts for 50 of the sectoral fiscal multiplier consistently our estimates show that the non traded sector is highly intensive in the government spending shock and experiences a labor inflow the shift of hours worked toward the non traded sector is however subject to mobility costs which vary across countries when we explore quantitatively the sectoral effects of a shock to government consumption that is highly intensive in non traded goods we find that the model can replicate the magnitude of the rise in the share of non tradables we document empirically once we allow for both labor mobility and capital installation costs financial openness also matters as it further biases the demand shock toward non tradables to account for the cross country dispersion in the responses of sectoral shares we estimate empirically we have to let the degree of labor mobility vary across countries

international trade and unemployment theory and cross national evidence abstract we present a model of trade and search induced unemployment where trade results from heckscher ohlin h o and or ricardian comparative advantage using cross country data on trade policy unemployment and various controls and controlling for endogeneity and measurement error problems we find fairly strong and robust evidence for the ricardian prediction that unemployment and trade openness are negatively related this effect dominates the positive h o effect of trade openness on unemployment for capital abundant countries which turns negative for labor abundant countries using panel data we find an unemployment increasing short run impact of trade liberalization followed by an unemployment reducing effect leading to the new steady state

an equilibrium model of sectoral reallocation this paper constructs a two period two sector model in which there are permanent sectoral shocks it analyzes the equilibrium path of individual labor supply sectoral employment and duration of unemployment in response to these shocks equilibrium allocations are shown to be easy to characterize and comparative statics results are provided

effects of permanent and transitory tax changes in a life cycle labor supply model with human capital i examine effects of labor income taxation in life cycle models with human capital accumulation in this case the opportunity cost of time equals the wage plus returns to work experience this has several interesting consequences first the data appear consistent with larger labor supply elasticities than prior work suggests second contrary to conventional wisdom permanent tax changes can have larger effects on current labor supply than temporary changes third human capital dampens responses of young workers to transitory tax changes fourth labor supply elasticities increase with age fifth human capital amplifies the effect of permanent tax changes in the long run

dynamic female labor supply the increase in female employment and participation rates is one of the most dramatic changes to have taken place in the economy during the last century however while the employment rate of married women more than doubled during the last 50 years that of unmarried women remained almost constant to empirically analyze these trends we estimate a female dynamic labor supply model using an extended version of eckstein and wolpin 1989 to compare the various explanations in the literature for the observed trends this dynamic model provides a much better fit to the life cycle employment pattern than a static version of the model and a standard static reduced form model heckman 1979 the main finding using the dynamic model is that the rise in education levels accounts for about 33 percent of the increase in female employment and the rise in wages and narrowing of the gender wage gap account for another 20 percent while about 40 percent remains unexplained by observed household characteristics we show that this unexplained portion can be empirically attributed to cohort specific changes in preferences or the costs of child rearing and household maintenance finally the decline in fertility and the increase in divorce rates account for only a small share of the increase in female employment rates

household impacts of tariffs data and results from agricultural trade protection how do trade reforms impact households in different parts of the income distribution this paper presents a new database the household impacts of tariffs data set which contains harmonized household survey and tariff data for 54 low and lower middle income countries the data cover highly disaggregated information on household budget and income shares for 53 agricultural products wage labor income nonfarm enterprise sales and transfers as well as spending on manufacturing and services using a stylized model of the first order impacts of import tariffs on household real income this paper quantifies the welfare implications of agricultural trade protection on average unilateral elimination of agricultural tariffs would increase household incomes by 2 50 percentage points import tariffs have highly heterogeneous effects across countries and within countries across households consumers and income earners the average standard deviation of the gains from trade within a country is 1 01 percentage points

income and wealth heterogeneity in the macroeconomy how do movements in the distribution of income and wealth affect the macroeconomy we analyze this question using a calibrated version of the stochastic growth model with partially uninsurable idiosyncratic risk and movements in aggregate productivity our main finding is that in the stationary stochastic equilibrium the behavior of the macroeconomic aggregates can be almost perfectly described using only the mean of the wealth distribution this result is robust to substantial changes in both parameter values and model specification our benchmark model whose only difference from the representative agent framework is the existence of uninsurable idiosyncratic risk displays far less cross sectional dispersion and skewness in wealth than u s data however an extension that relies on a small amount of heterogeneity in thrift does succeed in replicating the key features of the wealth data furthermore this extension features aggregate time series that depart significantly from permanent income behavior

inside the perpetual motion machine cross country comparable evidence on job and worker flows at the industry and firm level many studies suggest that idiosyncratic firm level characteristics shape both job and worker flows in a similar way in all countries others argue that cross country differences in terms of gross job flows are minor however these statements are usually based on the comparison of national estimates typically collected on the basis of different definitions and collection protocols in contrast in this article we use cross country comparable data on both job and worker flows to examine key determinants of these flows and of their cross country differences we find that idiosyncratic firm characteristics industry age and size play an important role for both gross job and worker flows in all countries nevertheless in contrast with part of the literature we find that even controlling for these idiosyncratic factors cross country differences concerning both gross job and worker flows appear large and of a similar magnitude both job and worker flows in countries such as the usa and the uk exceed those in certain continental european countries by a factor of two moreover the variation of worker flows across different dimensions is well explained by the variation of job flows consistently churning flows that is flows originating by firms churning workers and employees quitting and being replaced display much less variation across countries copyright 2010 the author 2010 published by oxford university press on behalf of associazione icc all rights reserved oxford university press

testing for linear and nonlinear granger causality in the stock price volume relation linear and nonlinear granger causality tests are used to examine the dynamic relation between daily dow jones stock returns and percentage changes in new york stock exchange trading volume we find evidence of significant bidirectional nonlinear causality between returns and volume we also examine whether the nonlinear causality from volume to returns can be explained by volume serving as a proxy for information flow in the stochastic process generating stock return variance as suggested by clark s 1973 latent common factor model after controlling for volatility persistence in returns we continue to find evidence of nonlinear causality from volume to returns

persistent real exchange rates abstract three well known facts that characterize exchange rate data are a the high correlation between bilateral nominal and real exchange rates b the high degree of persistence in real exchange rate movements and c the high volatility of real exchange rates this paper attempts a joint albeit partial rationalization of these facts in an environment with no staggered contracts and where prices are preset for only one quarter there are two key innovations in the paper first we augment a standard two country open economy model with learning by doing in production at the firm level this induces monopolistically competitive firms to endogeneize the productivity effect of their price setting behavior specifically firms endogenously choose not to adjust prices by the full proportion of a positive monetary shock in order to take advantage of the productivity benefits of higher production second we introduce habits in leisure this makes the labor supply decision dynamic and adds an additional source of propagation we show that the calibrated model can quantitatively reproduce significant fractions of the aforementioned facts moreover as in the data the model also produces a positive correlation between the terms of trade and the nominal exchange rate

real business cycle models and the forecastable movements in output hours and consumption the authors study the movements in output consumption and hours that are forecastable from a vector autoregression and analyze how they differ from those predicted by standard real business cycle models they show that actual forecastable movements in output have a variance about one hundred times larger than those predicted by the model the authors also find that forecastable changes in the three series are strongly positively correlated with each other on the other hand for parameters whose implications are plausible in other respects the model implies that output consumption and hours should not all be expected to move in the same direction copyright 1996 by american economic association

labor hoarding and the business cycle this paper investigates the sensitivity of solow residual based measures of technology shocks to labor hoarding behavior using a structural model of labor hoarding and the identifying restriction that innovations to technology shocks are orthogonal to innovations in government consumption we estimate the fraction of the variability of the solow residual that is due to technology shocks our results support the view that a significant proportion of movements in the solow residual are artifacts of labor hoarding behavior specifically we estimate that the variance of innovations to technology is roughly 50 percent less than that implied by standard real business cycle models in addition our results suggest that existing real business cycle studies substantially overstate the extent to which technology shocks account for the variability of postwar aggregate u s output

does unmeasured ability explain inter industry wage differentials this paper provides empirical assessments of the two leading explanations of measured inter industry wage differentials 1 true wage differentials exist across industries and 2 the measured differentials simply reflect unmeasured differences in workers productive abilities first we summarize the existing evidence on the unmeasured ability explanation second we construct a simple model which shows that if matching is important then endogenous job change decisions can create important self selection biases even in first differenced estimates of industry wage differentials third we analyze a sample that approximates the experiment of exogenous job loss we find that i the wage change experienced by a typical industry switcher closely resembles the difference in the relevant industry differentials estimated in a cross section and ii pre displacement industry affiliation plays an important role in post displacement wage determination

labor supply estimation biases from disregarding nonwage benefits labor supply models and research underpinned by labor supply decisions typically assume the agents choices are functions of wage and wage offers however there is evidence that these selections are not only wage driven but at least in part depend on non wage benefits encompassed in jobs and occupations in this paper i develop and estimate a stochastic dynamic model of occupational and job choice where non wage benefits are directly incorporated into the decision alongside wages a nested model within this is a wage model representing common practice in the literature where non wage benefits are disregarded i separately estimate the full model and the nested wage model in order to compare the implications of omitting non wage benefits three analyses are compared elasticities economy wide structural changes in occupations and inequality reduction intervention policies i find that while disregarding non wage benefits generally causes biases there are cases when the two models predict very similar outcomes and have close estimates such as in occupational specific elasticities and job transition elasticities however i demonstrate that these special cases are products of canceling biases and that the same estimates on subpopulations are biased these results suggest that in most cases ignoring non wage benefits will bias estimates by overestimating the importance of wage in the selection process and so any intervention or change in wages will be over emphasized and by disregarding changes in relative prices between wage and non wage benefits such as happens through changes in wage taxes or in non wage benefits these biases can be severe the results suggest that ignoring non wage benefits in labor supply decisions is appropriate only in the special case in which subpopulation biases negate each other which is atypical i would like to thank moshe buchinsky and maria casanova for their invaluable and continual help in this project as well as rosa matzkin arturo harker seth kerstein dan ben moshe peter bergman anonymous referees at review of economics and statistics and seminar participants at ucla rand syracuse university the bureau of labor statistics and the census bureau for numerous helpful comments and suggestions

economic growth and tax components an analysis of tax changes in oecd the paper examines empirically the changes in the tax mix of the oecd countries in response to economic growth from 1980 to 1999 it is found that economic growth measured by gdp per capita has had a significant effect on the tax mix of the oecd countries analysis reveals that different taxes respond differently to the growth of gdp per capita it is shown that while the shares of personal and property taxes have responded positively to economic growth shares of the payroll and goods and services taxes have shown a relative decline

the use of structural models in econometrics costas meghir has been supported by the cowles foundation and the institution for social and policy studies isps at yale university

is rising rts a figment of poor data abstract while using detailed firm level data from the private business sector this study identifies two empirical puzzles i returns to scale rts parameter estimates rise at higher levels of data aggregation and ii estimates from the firm level suggest decreasing returns to scale the analysis shows that although consistent with rising estimates neither entry exit nor the basu fernald returns to scale in u s production estimates and implications journal of political economy 105 249 283 aggregation bias effect drives this result rather rising and too low rts estimates seem to reflect a mixture of random errors in factor inputs at the firm level it turns out in fact that a 7 5 10 percent error in labor hours worked can explain both puzzles

lost in transition the costs and consequences of sectoral labour adjustment this paper uses an equilibrium search and matching model to study canada s sectoral labour adjustment in 2002 2006 during an increase in global commodity prices and exchange rate appreciation i estimate economically significant adjustment costs for the aggregate economy in this episode and demonstrate that difficulty in transferring skills between jobs for individual workers can be an important contributor to these aggregate costs the analysis also demonstrates that the level of unemployment benefits impacts the economy s sectoral composition its aggregate productivity and the speed of its adjustment to shocks ce texte utilise un modele d equilibre de la recherche et de l arrimage pour etudier les ajustements sectoriels du travail au canada dans la periode 2002 2006 une periode d appreciation des prix globaux des produits de base et du taux de change j estime que les couts d ajustement sont economiquement significatifs pour l economie agregee au cours de cet episode et que la difficultea transferer les competences entre emplois pour les travailleurs individuels peut etre une source importante de ces couts agreges les analyses montrent aussi que le niveau des prestations d assurance emploi a un impact sur la composition sectorielle de l economie sur la productivite et sur la vitesse des ajustements aux chocs

what do residuals from first order conditions reveal about dge models the first order condition foc associated with labour in many dynamic general equilibrium models involves only current period variables residuals constructed from this foc are inconsistent with aggregate us data in that they are very large and highly persistent the persistence suggests that models which introduce dynamic terms in the labour foc may be more consistent with the data three such models one with learning by doing one with habit formation and one with labour adjustment costs confirm that they can reduce the persistence in the residuals making the models more consistent with the joint dynamics of consumption output and hours

economic growth export and external debt causality the case of african countries empirical investigation of the export driven economic growth hypothesis has provided mixed results in a bivariate causality framework the problem with such bivariate causality analysis is that there can be an omitted variable which could adversely affect the results this paper looks at the trivariate causality analysis of african countries by introducing external deby servicing as a third variable in the export economic growth analysis the results indicate that there is a feedback or bidirectional causality between external debt servicing economic growth and exports evidence of the 1983 90 subperiod is consistent with the argument that the structural adjustment programmes which were designed to remove economic distortions promote exports and encourage external debt management increased growth in the countries involved

learning by doing and aggregate fluctuations abstract an unresolved issue in business cycle theory is the endogenous propagation of shocks yielding allocations that exhibit the persistence displayed in the data this paper explores the quantitative implications of one propagation mechanism learning by doing whose parameters are estimated using sectoral and plant level observations in the u s which are then integrated into a stochastic growth model with technology shocks we conclude that learning by doing can be a powerful mechanism for generating endogenous persistence moreover learning by doing implies that the employment decision of the representative agent is dynamic which allows a re interpretation of taste shocks or cyclical labor utilization as endogenous labor supply shifts

cyclical fluctuations and sectoral reallocation evidence from the psid abstract this paper documents the correlation between permanent sectoral reallocation and the business cycle using data from the michigan panel study of income dynamics we find that the outflow of workers from goods to services accelerates during recessions the flow from services to stable employment in surables accelerates during booms we also document the contribution of sectoral reallocation to total unemployment permanent switchers account for about a quarter of the total weeks of unemployment during booms this proportion rises to nearly 40 duing recessions

an estimable dynamic general equilibrium model of work schooling and occupational choice this paper develops and estimates a dynamic general equilibrium overlapping generations model of career decisions the model is fit to data on life cycle employment schooling and occupation decisions and on life cycle labor earnings within and between cohorts observed in the us between 1968 and 1993 based on the estimates of the model the impact of cohort size on skill prices and consequently on career decisions is assessed compared to a baseline case in which cohort size increased at a steady average rate and the fertility process was stationary it is found that the male baby bust generations born in the 1930s and 1940s faced higher skill prices by as much as 2 0 completed college at a higher rate by as much as 0 3 percentage points and worked more over the lifetime by as much as 0 1 years in contrast the males from the baby boom generations born in the 1950s and 1960s faced lower skill prices by as much as 1 5 completed college at a lower rate by as much as 1 0 percentage points and worked less over the lifetime by as much as 0 1 years the impact of cohort size is found to differ across gender due to the differential impact of fertility on the value of home production unlike males the female baby bust generations completed college at a lower rate by as much as 1 5 percentage points and worked less over the lifetime by as much as 0 5 years while the female baby boom generations completed college at a lower rate by as much as 1 5 percentage points and worked more over the lifetime by as much as 0 2 years a tuition subsidy experiment is also performed both in a general equilibrium setting in which skill prices are endogenous and in a partial equilibrium setting with fixed skill prices based on the estimated model a 1 increase in tuition is predicted to reduce college enrollment rates by 1 27 in partial equilibrium consistent with previous estimates and by 1 05 in the general equilibrium case thus for this policy experiment the partial equilibrium analysis of schooling choice would not differ significantly from the general equilibrium analysis

intersectoral labor mobility and the growth of the service sector one of the most striking changes in the u s economy over the past 50 years has been the growth in the service sector between 1950 and 2000 service sector employment grew from 57 to 75 percent of total employment however over this time the real hourly wage in the service sector grew only slightly faster than in the goods sector in this paper we assess whether or not the essential constancy of the relative wage implies that individuals face small costs of switching sectors and we quantify the relative importance of labor supply and demand factors in the growth of the service sector we specify and estimate a two sector labor market equilibrium model that allows us to address these empirical issues in a unified framework our estimates imply that there are large mobility costs output in both sectors would have been double their current levels if these mobility costs had been zero in addition we find that demand side factors that is technological change and movements in product and capital prices were responsible for the growth of the service sector

export expansion and economic growth testing for cointegration and causality this paper develops a multivariate error correction model to test the causality between exports and growth in 15 asian countries 1967 91 the underlying series are tested as non stationary in levels but stationary in first differences the causal factors are cointegrated in five of these countries only causality test results indicate that export expansion causes growth in two third of these countries corrected for simultaneity between the causal factors a country with a large public sector higher level of economic development and which is less vulnerable to external economic shocks is more likely to reap the benefits of export promotion strategies the causal inferences are fairly stable over the sample period

individual heterogeneity and interindustry wage differentials estimates of interindustry wage differentials are obtained using a fixed effects estimator on a long panel the national longitudinal survey of young men nls after controlling for observable worker characteristics 84 percent of the residual variance of log wages across industries is explained by individual fixedeffects only 16 percent of the residual variance is explained by industry dummies since no controls for specific job characteristics are used job characteristics that vary across industries could potentially explain this rather small residual across industry log wage variance that is not attributable to individual effects clearly then these data do not force us to resort to noncompetitive explanations of interindustry wage differentials such as efficiency wage theory furthermore efficiency wage theories predict that wages in efficiency wage paying or primary industries should be relatively rigid therefore industry wage differentials should widen in recessions however no such tendency is found in the data

returns to talent and the finance wage premium to study the role of talent in finance workers pay we exploit a special feature of the french higher education system wage returns to talent have been significantly higher and have risen faster since the 1980s in finance than in other sectors both wage returns to project size and the elasticity of project size to talent are also higher in this industry last the share of performance pay varies more for talent in finance these findings are supportive of finance wages reflecting the competitive assignment of talent in an industry that exhibits a high complementarity between talent and scale received october 11 2017 editorial decision september 4 2018 by editor stijn van nieuwerburgh authors have furnished an internet appendix which is available on the oxford university press web site next to the link to the final published paper online

long term wage fluctuations with industry specific human capital exploiting long term interindustry demand shifts this article provides evidence that 1 industry level wages do not respond to industry demand conditions 2 at the industry level the employment of young workers responds more to demand shifts than does the employment of experienced workers and 3 the postdisplacement wages of displaced workers are strongly affected by demand in their predisplacement industries these findings are consistent with a model in which worker s investments in industry specific skills pose a barrier to interindustry labor mobility and wages do not respond to spot labor market conditions

monetary vs credit aggregates an evaluation of monetary policy targets the past decade was characterized by increased emphasis upon monetary aggregates as intermediate targets for monetary policy although growth rate ranges were specified for both narrow and broad monetary aggegates as well as for bank credit the primary focus of the federal reserve was on the growth rate of narrow money however some policy makers 19 have recently expressed doubt about the viability of using narrow money as an intermediate target in particular it has been argued that recent financial innovations such as the introduction of the various now accounts the proliferation of money market mutual funds and the adoption of cash management techniques by both firms and consumers to name a few have distorted the ml1 gnp relationship thereby raising the question of whether broader monetary aggegates or even credit aggregates might bear a closer relationship to income furthermore the federal reserve has recently announced growth rate target ranges for a broad credit aggregate in addition to growth rate ranges for ml and m2 2 friedman 7 8 provides a general discussion of these issues while modiglianipapademos 18 provide a theoretical analysis of the conditions under which a credit aggregate is preferred to a monetary aggregate as an intermediate target however nothing conclusive can be said at the theoretical level since the choice between money and credit aggregates depends upon the true underlying structure of the macroeconomy hence the choice among money and credit aggregates is an empirical issue the aim of this paper is to provide evidence on the issue of credit aggregates versus monetary aggregates as intermediate targets for monetary policy the paper evaluates the characteristics of several monetary and credit aggregates in terms of two attributes of a

fiscal policy and occupational employment dynamics we document substantial heterogeneity in occupational employment dynamics in response to government spending shocks in the united states employment rises most strongly in service sales and office pink collar occupations by contrast employment in blue collar occupations is hardly affected by fiscal policy we provide evidence that occupation specific changes in labor demand are key for understanding these findings we develop a business cycle model that explains the heterogeneous occupational employment dynamics as a consequence of composition effects due to heterogeneous employment changes across industries and occupation specific within industry employment shifts due to differences in the short run substitutability between labor and capital services across occupations

mobility constraints productivity trends and extended crises abstract in this paper we propose an interpretation of the current global financial crisis which emphasizes sectoral dislocation following localized technical change in the presence of barriers to labor mobility this tale is reminiscent of a similar tale concerning the great depression in the 30s technical change was localized in agriculture where income fell because rising productivity could not be offset by a shrinking labor force due to the costs of moving out of agriculture for unemployed workers inelastic demand for agricultural output meant that as output increased income declined as individual incomes fell below the level necessary to finance the transition to manufacturing excess labor became trapped in agriculture reducing wages and exacerbating the rise in output shrinking incomes in agriculture reverberated on the other sectors mainly manufacturing causing a large depression nowadays it is manufacturing that plays the role of epicenter of technical change falling incomes in manufacturing yield a lack of demand for goods produced in the rest of the economy namely the service sector this may be the deep rooted cause of the long lasting slump and the painfully slow recovery

sectoral shifts and interindustry wage differentials the observed differences in wages across industries may arise from a lack of worker mobility particularly among experienced workers allowing the effects of industry shocks to persist for some time although young workers arbitrage wage shocks they will have little effect on the dispersion of experienced workers wages if young and old workers are poor substitutes in production this explanation is investigated using the five censuses of population between 1940 and 1980 the evidence strongly suggests that differences in pay are not temporary phenomena the data provide some support for the role of human capital and ability