a review of the recent empirical literature on displaced workers this article reviews the empirical literature on job displacement job displacement is widespread and strongly countercyclical tending to peak during economic downturns but concentrated in indus

policy watch infrastructure investment and economic growth in the late 1980s david aschauer 1989 triggered a long overdue dialogue among economists and political leaders when he published a study arguing that much of the decline in u s productivity that occurred in the 1970s was precipitated by declining rates of public capital investment my own work confirmed these results munnell 1990a spending advocates seized on these findings as support for increased public investment the enthusiasm among policymakers for the early aschauer results was matched if not surpassed by skepticism on the part of many economists critics of these studies charged that the methodology was flawed that the direction of causation between public investment and output growth is unclear and that even if the historical empirical relationships were estimated correctly they provide no clear indications for current policy who s right what do we know and not know about the link between public infrastructure and productivity and what are the implications of these results for policy

relative price determination in the medium run the influence of wages productivity and international prices this work explores three critical assumptions of the balassa samuelson productivity differential model for the short and medium run wage equalization competitive labor markets and purchasing power parity the data reveal violations in these assumptions for france germany japan the u k and the u s significant wage and unit labor cost differentials exist across industries and traded and nontraded sectors and these differentials do not diminish over time the findings are consistent with the presence of industry and or sectoral specific human capital

the effect of public capital in state level production functions reconsidered using a panel data set for the forty eight contiguous states from 1970 to 1983 several estimates are provided of a cobb douglas production function with three types of public capital as inputs various specification tests are systematically applied to test for both random and fixed state effects nonstationarity endogeneity of the private inputs and measurement error in the preferred specification which is first differences with fixed state effects the public capital variables are not significant while the fixed state effects and private input variables are significant copyright 1996 by mit press

convergence in oecd countries technical change efficiency and productivity the aim of this study is to analyse labour productivity convergence in the oecd countries over the period 1975 90 a nonparametric frontier approach is used to calculate the malmquist productivity index by breaking it down the contribution in the growth of labour productivity of technical progress of changes in efficiency and of the accumulation of inputs per worker are quantified unlike other studies the results obtained show that technical change has worked against labour productivity convergence since it has always been greater in the countries with higher labour productivity

the role of public capital in production the impact of the stock of public capital on costs of production in the private sector is examined using annual data over the period 1958 89 a translog cost function is estimated and public capital is found to be a significant input the estimates indicate that public capital has positive marginal product and that private and public capital are complements in production rather than substitutes copyright 1992 by mit press

industry specific human capital occupation and firm size evidence from taiwan this paper investigates the importance of various types of human capital and highlights the role played by industry tenure in determining wages in taiwan it also aims to offer possible explanations as to why industry specific human capital is much less significant than it is in the united states empirically it is found that other things being equal accumulating industry tenure decreases earnings for both the least skilled workers and those employed in mid sized firms industry specific skills are not yet deeply implemented in most occupations and firms of all sizes this might also account for the remarkable level of labor reallocation among industries that is observed in taiwan furthermore the capital stock accumulated through education is found to be the most crucial in determining wages in all estimations and a factor considered the engine of growth during the miraculous development of taiwan s economy however the importance of other types of human capital on earnings namely general labor market experience and firm specific human capital varies substantially across groups

the effects of public capital on the productivity of the italian regions this article investigates the role played by public capital in increasing the productivity levels in italy for construction of the regional series for the public capital stock over the period 1996 to 2003 the study benefits from the use of the rich dataset on public expenditure recently published by the italian ministry of economy we have estimated panel production functions with the inclusion of traditional factors and also intangible inputs like research and development r d expenditure human capital hk and social capital sk the results point out that public capital has a positive and significant effect on production moreover the effects of all production factors vary considerably between the two macro areas of the country namely centre north and mezzogiorno more specifically while private capital is more effective in the south labour exhibits an elasticity much higher in the centre north with respect to the mezzogiorno the disaggregation of the public capital stock into functional cat

secular labor reallocation and business cycles we study the eect of mean preserving idiosyncratic industry shocks on business cycle outcomes we develop an empirical methodology using a local area s exposure to industry reallocation based on the area s initial industry composition and employment trends in the rest of the country over a full employment cycle using confidential employment data by local area and industry over the period 1980 2014 we find sharp evidence of reallocation contributing to worse employment outcomes during national recessions but not during national expansions we repeat our empirical exercise in a multi area multi sector search and matching model of the labor market the model reproduces the empirical results subject to inclusion of two key empirically plausible frictions imperfect mobility across industries and downward nominal wage rigidity combining the empirical and model results we conclude that reallocation can generate substantial amplification and persistence of business cycles at both the local and the aggregate level

infrastructures and productivity in the spanish regions mas m maudos j perez f and uriel e 1996 infrastructures and productivity in the spanish regions reg studies 30 641 649 the aim of this paper is to analyse the role of public capital the types of infrastructures in which it is invested and their territorial distribution in the gains in productivity of the private sector in the spanish regions in the period 1964 91 using panel data techniques to control for unobserved state specific characteristics the results obtained show how the infrastructures most directly linked to the productive process present a significant and positive effect on productivity they also show the importance of the network effect of the infrastructures of a productive nature as well as a decrease in the elasticity associated with such infrastructures as development progresses mas m maudos j perez f et uriel e 1996 les infrastructures et la productivite aux regions espagnoles reg studies 30 641 649 cet article cherche a analyser le role du capital public les

sectoral transformation and labour market flows in this chapter we examine the dynamics of adjustment in the labour market and in particular the movement of workers between industries it is often assumed that the speed with which the labour market must adjust has increased due to globalisation and or technological change if this is the case then these forces may be responsible for greater instability in the workplace the displacement of growing numbers of especially unskilled workers from declining sectors longer periods of unemployment and wage losses

the determinants of earnings a behavioral approach we survey the determinants of earnings and propose a framework for understanding labor market success we suggest that the advantages of the children of successful parents go considerably beyond the benefits of superior education the inheritance of wealth or the genetic inheritance of cognitive ability we suggest that noncognitive personality variables such as attitudes towards risk ability to adapt to new economic conditions hard work and the rate of time preference affect both earning and the transmission of economic status across generations

measuring and forecasting regional environmental and economic efficiency in italy abstractenvironmental and economic efficiency has being receiving growing attention among researchers in general terms this concept is related to the capability of the economic systems to employ natural resources efficiently so as to increase economic and human wealth this clearly implies that both the economic and ecological aspects of decisions ought to be considered bearing this in mind this article considers economic and ecological performance together by applying data envelopment analysis and the malmquist productivity index to investigate the efficiency of the 20 italian regions from 2004 to 2011 the results reveal that the northern regions have been more efficient than the southern ones highlighting the strong geographical differences between the two furthermore this article uses the grey system theory to forecast regional economic and environmental efficiency the results of the forecasting analysis show that the north south duality remains strong and will possibly increase since the r

state infrastructure and productive performance recent research on productivity growth has focused on public infrastructure and its impact on economic growth and productivity the authors construct a model of firms technology and behavior taking advantage of the analytical framework provided in the cost function based applied production theory literature and apply it to state level data for u s manufacturing they find that infrastructure investment provides a significant return to manufacturing firms and augments productivity growth the net benefits of infrastructure investment may or may not be positive depending upon the social costs of infrastructure investment and the relative growth rates of output and infrastructure copyright 1996 by american economic association

wages and employment in a segmented labor market this paper analyzes the impact of business cycle fluctuations on a labor market segmented into a unionized primary sector and a competitive secondary sector either permanent or temporary changes in real aggregate demand are shown to widen the intersectoral wage differential in recession and under reasonable specifications of key parameters to cause greater fluctuations of primary sector employment than secondary sector employment this pattern agrees with the stylized facts of the u s economy

infrastructure investment a review essay economists try not to be faddists but they often cannot help themselves while work on a topic should mirror the prospective importance of the topic that situation seems to occur with disappointing frequency instead the usual pattern is that some reasonably important topic will be totally ignored for the longest time then recognized and then the subject of a flurry of work all out of proportion to its likely long run importance nowhere has this speculative bubble of economic research been more clearly illustrated than with infrastructure investment macroeconomists havelong felt that the stock of public capital is an important factor input in the production of total output macroeconomists have known that u s productivity growth slowed dramatically in about 1973 and macroeconomists should have known that united states investment in public capital has been down since the late 1960s yet analysis of the u s productivity slowdown completely ignored infrastructure investment for the first fifteen years of this slowdown concentrating instead on energy prices social regulation the composition of the work force research and development different rates of obsolescence of the private capital stock and any number of other matters the public capital stock was hardly ever even mentioned as a potential factor in the productivity slowdown aschauer changed all that he wrote a series of papers 1989a 1989b 1989c that put these two movements together econometrically infrastructure investment turned down and aggregate productivity turned down slightly later both in the united states and in some other developed countries his work hit the magic button those who had worried about the productivity puzzle for fifteen years welcomed a new suspect those who were worried about low rates of u s national saving welcomed a new way to make their argument even more forcefully than with official figures on saving and investment which do not count infrastructure investment as investment political liberals and liberal politicians saw a way to rescue government spending and projects from the assaults of reaganism and even a way to avoid oth

international effects of stock market dispersion we study the extent to which stock market dispersion is related to unemployment and output growth for 16 countries over 20 years using panel vector auto regressions and panel dynamic regressions we find increases in stock market dispersion across industries to induce future increases in unemployment and future decreases in industrial production ip growth moreover the responses of unemployment and ip growth following a positive shock to stock market dispersion are persistent and are robust to various controls sample periods and estimation methods our article provides cross country evidence in support of the hypothesis that shifts in demand across industries negatively affect employment

cyclical variation in the interindustry wage structure this paper presents an analysis of cyclical variation in the interindustry wage structure the study is therefore concerned with changes in relative wages among industries and not directly with the determination of the absolute wage level or changes in the absolute wage level the theory of the wage structure presented here is based on two hypotheses tihe first introduced initially as a maintained hypothesis is that differences among industries in the competitive structure of their product and labor markets result in wage inequalities for given skill levels the second hypothesis and the major finding of the paper is that the size of the wage differentials is a function not only of the extent and nature of the noncompetitive elements but also of the excess demand conditions in the labor market this result is derived from the proposition that under competitive supply conditions labor allocation is based on relative wages to support the theory a wage structure equation is estimated with the coefficient of variation of straight time average hourly earnings in the two digit manufacturing industries as the dependent variable the implications of the study for aggregate and industry wage equations are then discussed

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

atheoretical macroeconometrics a critique abstract the spurious nature of the restrictions used to identify many macroeconometric models has led some researchers to advocate a style of econometric inquiry that is less dependent on prior theoretical restrictions of the sort that were central to the approach of the cowles commission this development which we call atheoretical macroeconometrics is summarized and evaluated in the current paper it is contrasted with an updated version of the cowles commission approach we conclude that while some of the exercises of atheoretical macroeconometrics are valid those that have attracted the most attention and appear the most innovative exogeneity testing impulse response analysis and policy analysis using estimated vector autoregressions are based on incorrect analysis

survival duration of plants evidence from the us petroleum refining industry abstract this paper presents a duration analysis on the survival of us petroleum refining plants for the 1981 1986 period when the industry as a whole declines in response to the decontrol of crude oil markets the purpose is to examine the duration dependence and determinants of post deregulation plant lifetimes the weibull model with the correction for unobserved individual heterogeneity provides a better fit to the data empirical results show that plant size age regulatory subsidies technology use and multiplant coordination are key determinants of refinery life duration after deregulation in addition major integrated oil companies tend to make timely restructuring via refinery closures and sales the interactive effects of size and technology use and of multiplant coordination and integrated organization are also important to the refinery survival

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

decentralization and the composition of public expenditure in spain gonzalez alegre j decentralization and the composition of public expenditure in spain regional studies this paper examines the effects of fiscal decentralization on the economic distribution of public expenditures using panel data from the seventeen spanish regions 1984 2003 it is shown that fiscal decentralization is a crucial determinant of the share of the public budget devoted to capital the estimation run is based on a model in which the utility of the representative agent from the current public expenditure depends on the distance to the level of the administration that provides it that could be the cause why decentralized economies experience a higher share of current expenditure in the budget of the public administrations gonzalez alegre j la decentralisation et la structure des depenses publiques en espagne regional studies cet article cherche a examiner l impact de la fiscalite decentralisee sur la distribution economique des depenses publiques a partir des donnees provenant d une

scar effects of unemployment an assessment of institutional complementarities this article uses panel data from the survey of income and program participation sipp and the european community household panel echp for a comparative analysis of workers post unemployment earnings trajectories in the united states and 12 western european countries across the study sample of industrialized countries results of difference in difference propensity score matching show post unemployment earnings losses to be largely permanent and particularly significant for high wage and older workers as well as for women the analyses also show that negative effects of unemployment on workers subsequent earnings are mitigated through either generous unemployment benefit systems or strict labor market regulation these effects stem partly from favorable behavioral responses that prevent downward occupational and industrial mobility and partly from changes in the overall structure of labor markets favoring the transferability of worker skills between jobs these positive effects materialize despite t

indivisible labor and the business cycle abstract a growth model with shocks to technology is studied labor is indivisible so all variability in hours worked is due to fluctuations in the number employed we find that unlike previous equilibrium models of the business cycle this economy displays large fluctuations in hours worked and relatively small fluctuations in productivity this finding is independent of individuals willingness to substitute leisure across time this and other findings are the result of studying and comparing summary statistics describing this economy an economy with divisible labor and post war u s time series

technological change technological catch up and capital deepening relative contributions to growth and convergence we decompose labor productivity growth into components attributable to 1 technological change shifts in the world production frontier 2 technological catch up movements toward or away from the frontier and 3 capital accumulation movement along the frontier the world production frontier is constructed using deterministic methods requiring no specification of functional form for the technology nor any assumption about market structure or the absence of market imperfections we analyze the evolution of the cross country distribution of labor productivity in terms of the tripartite decomposition finding that technological change is decidedly nonneutral and that both growth and bipolar international divergence are driven primarily by capital deepening jel o30 o47 d24

the industrial mobility of displaced workers this article uses a two industry model of unemployment duration and job search to estimate rates of transition of displaced workers from unemployment to employment distinguishing between employment in a worker s previous industry and in other industries the competing risks model allows inferences about search strategies to be drawn from data concerning employment outcomes and allows tests of some fundamental implications of search theory there is evidence that improvements in the prospects for employment in their previous industry induce displaced workers to reduce search intensity or increase reservation wages in other industries

is all public capital created equal this paper uses a var approach to investigate the effects of public investment on private sector performance in the united states this approach is consistent with the argument that the analysis of

sectoral shifts and cyclical unemployment reconsidered this paper develops a new measure of reallocation shocks based on the variance of industry stock market excess returns to assess the contribution of sectoral reallocation to unemployment in the postwar u s economy the beveridge curve relationship is used to establish that this series isolates reallocation shocks reallocation shocks are found to explain only a moderate share of the fluctuations in aggregate unemployment on average over the period however reallocation accounted for a substantial share of increases in unemployment in several episodes particularly the mid 1970s reallocation shocks also account for a larger share of fluctuations in unemployment of longer durations than of shorter durations

public investment in infrastructure in a simple growth model abstract in this paper we examine the implications for capital accumulation when infrastructure enters as an external input into private production functions in our model infrastructure is nonexclusive but may exhibit varying degrees of nonrivalry revenues from uniform taxes on capital and labor income are used to finance public investment in infrastructure we show that the optimal tax rate is independent of the degree of nonrivalry when production exhibits constant returns to augmentable factors the equilibrium displays constant growth for most parameters the growth rate depends on the population size under decreasing returns the optimal trajectory exhibits monotonic convergence to a steady state level

switching costs and sectoral adjustments in general equilibrium with uninsured risk abstract consider a two sector economy subject to recurring technological shocks these affect earnings in the two sectors differently creating incentives for workers to switch occupation switching costs are sunk individuals are risk averse and cannot diversify their income risk we characterize the rational expectations equilibrium of the economy and illustrate the extent to which uncertainty and switching costs increase labor immobility the resulting equilibrium is not even second best optimal even a government that cannot transfer income to achieve insurance can improve matters by speeding up the reallocation of labor across sectors because that reduces relative price variability journal of economic literature classification numbers d52 d62 j62

risk of labor displacement and cross industry labor mobility a well supported conclusion of previous research is that displacement entails large and persistent costs for workers it therefore seems reasonable to expect workers to try to anticipate and respond to the risk of displacement using 1983 93 data from the panel survey of income dynamics and the displaced workers supplement to the current population survey the author investigates whether industry specific measures of job loss risk are correlated with workers propensity to cross industry lines for new jobs she finds that a one standard deviation increase in the risk of job loss an 86 increase from the mean level increased the probability of inter sectoral mobility by 10 5 in a sample of white men three factors that appreciably increased the likelihood of inter sectoral mobility in response to job insecurity were voluntary separation from the previous job high educational attainment and being currently employed as opposed to temporarily laid off

escaping nash inflation an ordinary differential equation ode gives the mean dynamics that govern the convergence to self confirming equilibria of self referential systems under discounted least squares learning another ode governs escape dynamics that recurrently propel away from a self confirming equilibrium in a model with a unique self confirming equilibrium the escape dynamics make the government discover too strong a version of the natural rate hypothesis the escape route dynamics cause recurrent outcomes close to the ramsey commitment inflation rate in a model with an adaptive government

capital reallocation and liquidity this paper studies the cyclical properties of capital reallocation and the frictions which inhibit such reallocation we show that the amount of capital reallocation and the benefits to reallocation vary at the business cycle frequency the amount of capital reallocation is procyclical in contrast the benefits to capital reallocation appear countercyclical we measure the amount of reallocation using data on flows of capital across firms and the benefits to capital reallocation using several measures of the cross sectional dispersion of the productivity of capital we then study a calibrated model of an economy where capital reallocation is costly and impute the cost of reallocation which is consistent with the amount of and benefits to reallocation in the data we find that the cost of reallocation needs to be substantially countercyclical to be consistent with the observed joint cyclical properties of reallocation and productivity dispersion the cyclical variation in this cost is interpreted as variation in the liquidity of capital broadly defined since physical costs are unlikely to vary countercyclically

public capital and total factor productivity new evidence from the italian regions 1970 98 destefanis s and sena v 2005 public capital and total factor productivity new evidence from the italian regions 1970 98 regional studies 39 603 618 this paper analyses the relationship between industrial total factor productivity and public capital across the 20 italian administrative regions it adds upon the existing literature in a number of ways it analyses a longer period 1970 98 it allows for the role of human capital accumulation it tests for the existence of a long run relationship between total factor productivity and public capital through previously suggested panel techniques and for weak exogeneity of public capital and it assesses the significance of public capital within a non parametric set up based on the free disposal hull the results confirm that public capital has a significant impact on the evolution of total factor productivity particularly in the southern regions this impact is mainly ascribed to the core infrastructures road and airports harbours railroads w

inequality and convergence in europe s regions reconsidering european regional policies europe s regions income disparities and regional policies in this paper we take a critical look at current european regional policies first we document the motivation for such policies that is the large income disparities across the regions of the eu15 large disparities are certainly present second we illustrate the various instruments adopted and discuss their underpinnings in established economic theories next we look at available data searching for three kinds of evidence 1 if disparities are either growing or decreasing we conclude they are neither 2 which are the major factors explaining such disparities and in particular if they are the factors predicted by the economic models adopted by the commission to justify current policies we conclude this is most certainly not the case 3 if there are clear signs that eu policies as opposed to other social and economic factors are actually reducing such disparities we cannot find any clear sign of such desired impact our conclusion is that regional and structural policies serve mostly a redistributional purpose motivated by the nature of the political equilibria upon which the european union is built they have little relationship with fostering economic growth this casts a serious doubt on their social value and furthermore strongly questions extending such policies to future members of the european union a successful eu enlargement in our view calls for an immediate and drastic revision of regional economic policies michele boldrin and fabio canova

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

convergence and productive efficiency in fourteen oecd countries a non parametric frontier approach abstract this paper explores the use of a non parametric frontier approach to analyse multi factor productivity across time and countries we argue that conventional measures of total factor productivity involve some restrictive assumptions that might bias the results a non parametric approach avoids these assumptions the model uses linear programming techniques to examine the productivity catching up in 14 oecd countries over the 1970 1990 period under the assumption of variable returns to scale we find evidence of convergence even if at quite different speeds for total industry for manufacturing and for services

a neoclassical model of unemployment and the business cycle this paper investigates a general equilibrium model of unemployment and the business cycle in which specialization of labor plays a key role a rational expectations equilibrium with fully flexible wages and prices can exhibit unemployment in which the marginal product of employed workers exceeds the reservation wage of those who are without jobs workers are unemployed either because they are in the process of relocating for a better job or because they are waiting for conditions in the depressed sector to improve moreover seemingly small disruptions in the supplies of primary commodities such as energy could be the source of fluctuations in aggregate employment and can exert surprisingly large effects on real output

stock market dispersion and unemployment abstract the sectoral shifts hypothesis advanced by lilien 1982 and davis 1987 suggests that unemployment is in part the result of resources being reallocated from declining to expanding sectors of the economy using u s data from 1931 to 1987 we test this hypothesis by constructing an index measuring the dispersion among stock prices from different industries we find that lagged values of this index significantly affect unemployment we show that the stock market dispersion index is less contaminated by aggregate demand influences than lilien s employment dispersion index which makes our test less vulnerable to the abraham and katz 1986 critique

public sector capital and the productivity puzzle a number of studies have suggested a quantitatively important relationship between public sector capital accumulation and private sector productivity with the most compelling evidence derived from analyses of state level data estimates herein of production functions that use standard techniques to control for unobserved state specific characteristics however reveal essentially no role for public sector capital in affecting private sector productivity only estimates of state production functions that do not include such controls find substantial productivity impacts this result reconciles existing econometric estimates with the findings of hulten and schwab based on growth accounting techniques as such techniques effectively control for state specific effects region level estimates are essentially identical to those from state data suggesting no quantitatively important spillover effects across states copyright 1994 by mit press

a theory of dual labor markets with application to industrial policy discrimination and keynesian unemployment this paper develops a model of dual labor markets based on employers need to motivate workers in order to elicit effort from their workers employers may find it optimal to pay more than the going wage this changes fundamentally the character of labor markets the model is applied to a wide range of labor market phenomena it provides a coherent framework for understanding the claims of industrial policy advocates it also can provide the basis for a theory of occupational segregation and discrimination that will not be eroded by market forces finally the model provides the basis for a theory of involuntary unemployment

electricity consumption and metropolitan economic performance in guangzhou 1950 2013 abstract this study analyzes the relationship between electricity consumption and metropolitan economic growth for guangzhou china using 64 years of annual frequency data the capital stock is used as a control variable because of its role in mediating the relationship between energy utilization and economic output empirical results indicate unidirectional granger causality from electricity consumption to metropolitan economic performance in the short run this is consistent with the argument that dependable electricity infrastructure and service can play a vital role in facilitating economic growth implications for conservation efforts and regional development are discussed

unemployment and vacancies with sectoral shifts recent analyses of unemployment vacancy series suggest that aggregate shocks rather than sectoral shocks are the primary factors responsible for unemployment fluctuations this inference follows from two widely held beliefs sectoral shocks induce only positive unemployment vacancy comovements while negative comovements are necessarily the result of aggregate demand shocks this paper describes an equilibrium matching model that identifies plausible circumstances in which neither assumption is correct thus suggesting that unemployment vacancy data are inconclusive interestingly this model s novel results are due to standard features in the contracting literature firms experience relative price shocks and negotiate contracts that prescribe temporary layoffs copyright 1994 by american economic association

self confirming equilibrium rium path of play thus if a self confirming equilibrium occurs repeatedly no player ever observes play that contradicts his beliefs even though beliefs about play at off path information sets need not be correct we characterize the ways in which self confirming equilibria and nash equilibria can differ and provide conditions under which self con firming equilibria correspond to standard solution concepts nash equilibrium and its refinements describe a situation in which i each player s strategy is a best response to his beliefs about the play of his opponents and ii each player s beliefs about the opponents play are exactly correct we propose a new equilibrium concept self confirming equilibrium that weakens condition ii by requiring only that players beliefs are correct along the equilibrium path of play thus each player may have incorrect beliefs about how his opponents would play in contingencies that do not arise when play follows the equilibrium and moreover the beliefs of different players may be wrong in different ways the concept of self confirming equilibrium is motivated by the idea that noncooperative equilibria should be interpreted as the outcome of a learning process in which players revise their beliefs using their observations of previous play suppose that each time the game is played the players observe the actions chosen by their opponents but that players do not observe the actions their opponents would have played at the information sets that were not reached along the path of play then if a self confirming equilibrium occurs repeatedly no player ever observes play that contradicts his beliefs so the equilibrium is self confirming in the weak sense of not being inconsistent with the evidence by analogy with the literature on the bandit problem e g rothschild 1974 one might expect that a non nash self confirming equilibrium can be the outcome of plausible learning processes this point was made by fudenberg and

public investment congestion and private capital accumulation this paper analyses the impact of public investment on the dynamics of private capital formation in an intertemporal optimising market clearing framework the key feature characterising the analysis is that the public good is treated as a durable capital good subject to congestion we show how in the presence of congestion the effect of government investment on private capital formation involves a tradeoff between the degree of substitution between private and public capital in production and the degree of congestion both lump sum and distortionary tax financing are considered with this tradeoff being tightened in the latter case

the short run relationship between sectoral shifts and u s labor market fluctuations monthly data for the aggregate u s economy are used to assess competing hypotheses concerning the relationship between sectoral employment shifts and fluctuations in the unemployment rate it is shown that sectoral shifts are caused by major work stoppages aggregate fluctuations unrelated to permanent sectoral shifts a reallocation timing effect and allocative shocks at the sectoral level larger employment shifts are associated with higher unemployment during slow growth periods and lower unemployment during above average growth periods models are presented which demonstrate that both aggregate and allocative shocks are causes of cyclical increases in unemployment

international differences in growth rates market globalization and economic areas part 1 human capital and growth how robust is the growth machinery nexus j b de long l h summers the role of human capital and political instability in economic development j benhabib m m spiegel allocation of time human capital and endogenous growth m baldassarri p de santis g moscarini part 2 explaining growth infrastructure and growth d canning m fay r perotti part 3 the importance of economic areas on the importance of joining the ec s single market the perspective efta members r e baldwin growth and specialization in an enlarged europe is a virtuous circle possible c a bollino p c padoan part 4 lessons from latin america latin america s economic growth v corbo p rojas inflation fall financial recovery and endogenous growth in latin american countries m bagella m lo cascio

practical policy evaluation abstract in the wake of the lucas 1976 the study of appropriate macroeconomic policy has largely focused on the comparison of different regimes rules in practice few policymakers are faced with making those kinds of choices i examine the problem of a policymaker making but one in a sequence of similar decisions my main result is that the policymaker s optimal response to the current state can be found by applying regression methods to past macroeconomic data i argue that macroeconomic policy evaluation intended to be of practical value should rely less on putatively structural macroeconomic models and more on regression based approaches

where to go workers reasons to quit and intra vs interindustry job mobility we show that workers reasons for quitting their job affect their decision to stay in or leave their industry using survey data among public sector employees in the netherlands workers quitting for e g pay work pressure or job duties move relatively often to another industry in contrast to workers quitting for commuting time or the atmosphere at work this suggests that workers use their experience in the initial job to update their expectations on other jobs in the industry as the first set of job aspects is more likely to be related among jobs within an industry than the latter furthermore it is shown that workers reasons to quit fully explain the differences in wage growth between intra and interindustry job movers lastly we find that workers who quit for pay or management often leave the public sector altogether the data used in this article are proprietary

is public expenditure productive abstract this paper considers the relationship between aggregate productivity and stock and flow government spending variables the empirical results indicate that i the nonmilitary public capital stock is dramatically more important in determining productivity than is either the flow of nonmilitary or military spending ii military capital bears little relation to productivity and iii a core infrastructure of streets highways airports mass transit sewers water systems etc has most explanatory power for productivity the paper also suggests an important role for the net public capital stock in the productivity slowdown of the last fifteen years

public capital accumulation and private sector performance abstract this paper analyzes the effects of public capital on private sector variables in a vector auto regressive framework empirical results suggest first that public capital follows a policy rule that relates public capital positively with lagged output and negatively with lagged employment second public capital crowds in private capital while the long term effects on employment are only marginally positive finally a one dollar increase in public capital increases private output in the long term by 65 cents accordingly while public capital is productive its effects on output are much lower than claimed in the previous literature

the craft of labormetrics using a wide array of examples from the literature and from original estimates the author examines the pitfalls that make good empirical research in labor economics at least as much craft as statistical technique among the subjects discussed are the appropriateness and cleanliness of data problems of extreme observations the validity of attempts to produce exogeneity using instrumental variables natural experiments and structural models and the treatment of selectivity and unobservable individual effects the author stresses the importance of testing empirical results to ensure that they make sense and of presenting them clearly and economically

excess worker reallocation workers face a trade off between macroeconomic and individual incentives to work in different occupations industries namely between search frictions and personal comparative advantages workers endowed with heterogeneous multi dimensional skills search for jobs that require different skill combinations in equilibrium specialized individuals contact few selected types of vacancies where they are likely to be hired those with weak comparative advantages are seldom chosen among competing applicants thus seek any job type in a tight labour market comparative advantages dominate waiting costs offsetting labour mobility across industries occupations excess worker reallocation is lower and matches are more successful consistently with direct and indirect evidence

the influence of traded and nontraded wages on relative prices and real exchange rates abstract this work demonstrates for fourteen oecd economies that wage differentials between traded and nontraded goods significantly affect the relative price of nontradeables and the real exchange rate in the short and medium run 1997 elsevier science s a

unemployment fluctuations in the united states further tests of the sectoral shifts hypothesis this paper presents further evidence on the importance of sectoral shifts by examining unemployment fluctuations in the united states over the period 1960 to 1991 extending previous research in three directions first by using a thirty industry decomposition of quarterly nonagricultural employment second by employing modern time series econometric techniques and third by using dispersion measures purged of both monetary and aggregate demand influences the authors findings support the view that sectoral shifts have been an important element of fluctuations in u s employment and also indicate that a given amount of dispersion has been associated with more unemployment during downturns than upturns copyright 1995 by mit press

human capital and convergence a production frontier approach using nonparametric production frontier methods we decompose labor productivity growth into components attributable to technological change shifts in the world production frontier technological catch up movements toward or away from the frontier and physical and human capital accumulation movements along the frontier we find that 1 technological change is decidedly nonneutral 2 productivity growth is driven primarily by physical and human capital accumulation 3 the increased international dispersion of productivity is explained primarily by physical capital accumulation and 4 international polarization the shift from a unimodal to a bimodal distribution is brought about primarily by efficiency changes technological catch up

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

occupational mobility and wage inequality in this article we argue that wage inequality and occupational mobility are intimately related we are motivated by our empirical findings that human capital is occupation specific and that the fraction of workers switching occupations in the u s was as high as 16 a year in the early 1970 s and had increased to 21 by the mid 1990 s we develop a general equilibrium model with occupation specific human capital and heterogeneous experience levels within occupations we find that the model calibrated to match the level of occupational mobility in the 1970 s accounts quite well for the level of within group wage inequality in that period next we find that the model calibrated to match the increase in occupational mobility accounts for over 90 of the increase in wage inequality between the 1970 s and the 1990 s the theory is also quantitatively consistent with the level and increase in the short term variability of earnings copyright wiley blackwell

inter and intrasectoral shocks effects on the unemployment rate intersectoral shocks require resource reallocation across sectors while intrasectoral shocks require resource reallocation within sectors a crucial difference between these shocks is that the former require much higher adjustment costs than the latter using accounting data to calculate returns on capital in manufacturing industries i generate proxies for these shocks i find that the magnitude of intrasectoral shocks is much greater than that of intersectoral shocks but intersectoral shocks explain the aggregate unemployment rate better than intrasectoral shocks i also find that intersectoral shocks are more closely related to the unemployment rate in the later part of the sample considered

declining us output volatility and its effect on labour flow volatility an mgarch analysis this article analyses flow rates of us workers between employment and unemployment using new quarterly data for the period 1967 to 2002 multivariate garch models are used to investigate links between flow rate volatilities the results suggest that links changed substantially in the mid 1980s coinciding with the documented decline in output volatility these changes in adjustment dynamics are consistent with a move to greater use of hours rather than worker adjustment

seniority sectoral decline and employee retention an analysis of layoff unemployment spells we investigate the effect of tenure on employee retention under varying labor market conditions using a competing risks analysis of recall and new job acceptance applied to layoff unemployment spell data from waves 15 and 16 1982 83 of the panel study of income dynamics we find that adverse conditions sectoral employment decline significantly reduce the positive tenure effect on recall probabilities this result is consistent with firm default on delayed payment contracts and does not appear to reflect the effect of technological change on the value of firm specific investments

the role of selective job search in uk unemployment selective search where unemployed job losers confine their job seeking efforts to matches in the pre separation sector has attracted consid erable attention as a possible source of high and persistent unemployment however this idea is questionable those opting for selection may do so because this strategy is more effective at gener ating an acceptable offer using uk microdata i find evidence in support of the latter view selective searchers cannot account for the persistence of high unemployment since the early 1980s

the role of nontraded and traded wages in the productivity differential model purchasing power parity ppp remains the benchmark model for long run nominal exchange rate determination since cassel s pioneering work 3 despite weak empirical support 6 7 12 14 seminal work by balassa 1 and samuelson 15 explains that movements in real exchange rates are due to changing real factors in the economy balassa and samuelson show that differing productivity rates between traded and nontraded sectors can explain deviations in ppp hsieh 10 has empirically supported the importance of productivity differentials in explaining real exchange rate movements although the balassa samuelson productivity differential model is commonly cited by international textbooks as an explanation of ppp failure 4 11 several assumptions have not been explicitly tested this paper examines four critical assumptions of the balassa model for fourteen oecd economies and demonstrates that some are weak and deserve additional study real exchange rate movements affect the competitiveness of a nation s tradable goods sector and represent deviations from purchasing power parity seminal work by balassa on real exchange rates and ppp violations relies on several underlying premises 1 the traded sector possesses higher productivity growth and larger intercountry differences than the nontraded sector 2 intracountry wage rates are equalized between traded and nontraded sectors due to labor mobility 3 wages in the traded good sector are linked to productivity in that sector 4 innovations in unit labor cost wage compensation adjusted for productivity cause corresponding movements in the relative price of nontraded goods this paper examines general patterns and interrelationships among traded and nontraded productivity real wages and relative prices for 14 oecd economies and extends the work of strauss and ferris 16 we construct gdp price indices productivity measures and real wage compensation rates for the traded and nontraded sectors for the years 1970 1990 the key finding is that differences in intersectoral wage growth appear to influence the relative price of nontradables more than differences in productivity growth the results support the proposition that produc

real wages and the business cycle the objectives of this review are threefold 1 to characterize the empirical literature on the cyclical behavior of real wages 2 to identify the sources of the differences in results across studies and 3 to enumerate key factors that determine the cyclicality of real wages given a host of measurement and methodological issues drawing firm conclusions is difficult but several generalizations can be made the estimated cyclicality of real wages depends crucially on the time period of analysis and the choice of whether to examine the production or the consumption wage composition effects play an important but complicated role as well

sectoral shifts and the mobility of displaced workers when are microdata useful we show that reallocation shocks that change sectoral job offer probabilities can induce negative sectoral mobility unemployment co movements this challenges murphy and topel s nber macroeconomics annual 1987 2 11 58 interpretation that such patterns in us microdata constitute evidence against sectoral shifts in driving unemployment

intra industry wage differences over the business cycle abstract recent empirical studies find that the wage rate differences across industries are not so countercyclical as widely believed we consider intra industry wage differences which refer to wage differences across more narrowly defined industries and find stronger evidence of countercyclicality

efficiency and technical progress sources of convergence in the spanish regions the paper analyses the contribution of efficiency as a mechanism of labour productivity convergence taking as the unit of analysis the spanish regions in the period 1964 1993 using the stochastic frontier approach a translogarithmic production function is estimated for the different sectors of the spanish regional economy demonstrating on this basis the existence of substantial differences in efficiency between sectors as well as between regions with regard to convergence the results obtained indicate that at aggregate level the convergence observed in labour productivity is explained by the faster growth of the capital labour ratio of the initially poorer regions and the contribution of technical change and the efficiency hence by the convergence of tfp however the information by sectors shows different results thus on the one hand the importance of the convergence in production per employee is seen in all sectors except agriculture and on the other it is observed that technical change is a

sectoral shocks and movement costs effects on employment and welfare abstract in this paper we provide a general equilibrium model of a two sector economy which accounts for low employment due to the incomplete responses of workers to sectoral shocks this model is used to reconcile the seemingly contradictory results of macro and micro evidence namely that sectoral shocks explain fluctuations of employment even though we do not observe cyclical movements of labor across sectors we further find that increasing the frequency of sectoral shocks holding the magnitude of the shocks fixed decreases total employment this allows us to account for the phenomena that the unemployment rate itself has been higher since 1970 a period characterized by an increased frequency of sectoral shocks we also study the theoretical implications of two opposite policies one which subsidizes mobility and the other which eliminates the partial insurance provided in the model the former increases employment and welfare while the latter increases employment but reduces welfare

sectoral shifts labor market sorting and aggregate fluctuations a model of sectoral reallocation is constructed where intersectoral friction is not caused by search or mobility costs instead a sectoral disturbance has a negative effect on production possibilities because it reduces the value of previous sorting in the labor market in equilibrium a measure of sectoral dispersion is positively correlated with the unemployment rate an increase in the incidence of sectoral disturbances increases unemployment at cyclical peaks and at cyclical troughs copyright 1990 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

international real business cycles we ask whether a two country real business cycle model can account simultaneously for domestic and international aspects of business cycles with this question in mind we document a number of discrepancies between theory and data the most striking discrepancy concerns the correlations of consumption and output across countries in the data outputs are generally more highly correlated across countries than consumptions in the model we see the opposite

sectoral shifts stock market dispersion and unemployment in canada considerable attention has been given in the last ten years to estimation of the importance of sectoral shifts in explaining short term fluctuations in unemployment recent studies have used us stock prices data to develop indexes of sectoral shocks less affected by cyclical influence than lilien s employment dispersion index two indexes of sectoral shifts for canada based on the sectoral dispersion of stock prices growth rates are calculated these indexes are then used in unemployment equations incorporating variables measuring aggregate demand shocks and structural changes in order to assess the importance of sectoral and cyclical shocks in the determination of the canadian unemployment rate the estimation leads to the conclusion that the major recessions of 1981 82 and 1990 91 have been caused by aggregate demand shocks however both types of shocks contributed to the 1974 75 recession while the mild recession of 1980 was accompanied by an important sectoral shock estimations also show that the mo