will business cycles in the euro area converge a critical survey of empirical research this survey of business cycle synchronization in the european monetary union focuses on two issues have business cycles become more similar and which factors drive business cycle synchronization we conclude that business cycles in the euro area have gone through periods of both convergence and divergence still there is quite some evidence that during the 1990s business cycle synchronization in the euro area has increased higher trade intensity is found to lead to more synchronization but the point estimates vary widely the evidence for other factors affecting business cycle synchronization is very mixed

revisiting wage earnings and hours profiles abstract for the youngest cohorts whose entire working life can be observed hours start falling much earlier than wages wages do not fall if they fall at all until one s late 60s the data suggest that many workers start a smooth transition into retirement by working progressively fewer hours while still facing an upward sloping wage profile this pattern is not an artifact of staggered abrupt retirement or selection this evidence imposes restrictions on dynamic models of the aggregate economy and provide updated numerical profiles that can be readily used in quantitative macroeconomic analysis to incorporate this new pattern into aggregate models

the individual life cycle annuity market imperfections and economic growth we study the effects of an annuity market imperfection on individual agents life cycle decisions and on the macroeconomic growth rate in an overlapping generations model with single sector endogenous growth our model features both age dependent mortality and labour productivity we model imperfect annuities by introducing a load factor on the annuity rate faced by finitely lived agents our main finding is that annuity market imperfections decrease economic growth because less assets are necessary for consumption late in life in addition we find that both the quantitative and qualitative effects of annuity market imperfections are grossly overestimated in a partial equilibrium analysis because it disregards general equilibrium repercussions

world business cycles under fixed and flexible exchange rates this paper studies the behavior of monthly industrial production indices during the recent periods of fixed and flexible exchange rate s the central conclusions are as follows industrial production indices are subject to stochastic trend growth the variances of the monthly growth rates are higher in the flexible exchange rate period than in the fixed exchange rate period and are related to the degree of openness and to national income more open economies tend to experience more variability while richer more diversified economies experience less and output movements have been correlated across countries under both exchange rate regimes and there is evidence of a world business cycle copyright 1988 by ohio state university press

business cycle transmission from the us to germany a structural factor approach abstract this paper investigates the transmission of us macroeconomic shocks to germany using a large dimensional structural dynamic factor model this framework allows us to investigate many transmission channels simultaneously including new channels such as stock markets foreign direct investment bank lending and the confidence channel we find that us shocks affect the us and germany largely symmetrically trade seems to be the most relevant transmission channel monetary policy reactions to strong price movements seem to play a role as well no clear conclusion can be drawn yet on the role of financial markets and the confidence channel negative domestic influences apparently more than offset positive us influences in the german economy between 1995 and 2000 but the us recession in 2001 appeared to be the main culprit in the german slump

why have aggregate skilled hours become so cyclical since the mid 1980 s this paper documents and discusses a dramatic change in the cyclical behavior of aggregate hours worked by individuals with a college degree skilled workers since the mid 1980 s using the cps outgoing rotation data set for the period 1979 1 2003 4 we find that the volatility of aggregate skilled hours relative to the volatility of gdp has nearly tripled since 1984 in contrast the cyclical properties of unskilled hours have remained essentially unchanged we evaluate the extent to which a simple supply demand model for skilled and unskilled labor with capital skill complementarity in production can help explain this stylized fact within this framework we identify three effects which would lead to an increase in the relative volatility of skilled hours i a reduction in the degree of capital skill complementarity ii a reduction in the absolute volatility of gdp and unskilled hours and iii an increase in the level of capital equipment relative to skilled labor we provide empirical evidence in support of each of these effects our conclusion is that these three mechanisms can jointly explain about sixty percent of the observed increase in the relative volatility of skilled labor the reduction in the degree of capital skill complementarity contributes the most to this result

business cycles and the exchange rate system some international evidence this paper investigates the differences in time series behavior of key economic aggregates under alternative exchange rate systems we use a postwar sample of 49 countries to compare the behavior of output consumption trade flows government consumption spending and real exchange rates under alternative exchange rate systems pegged floating and cooperative systems such as the ems we then examine evidence from two particular episodes involving canada and ireland of changes in the exchange rate system aside from greater variability of real exchange rates under flexible than under pegged nominal exchange rate systems we find little evidence of systematic differences in the behavior of macroeconomic aggregates or international trade flows under alternative exchange rate systems these results are of interest because a large class of theoretical models implies that the nominal exchange rate system has important effects on a number of macroeconomic quantities

comovements and heterogeneity in the euro area analyzed in a non stationary dynamic factor model this paper establishes stylized facts on comovements and heterogeneity of individual euro area countries output and price developments in the past two decades for this purpose a non stationary structural dynamic factor model is fitted to a large dataset of euro area macroeconomic variables the main results are as follows both common factors and idiosyncratic components are important in explaining individual countries output and price developments in the euro area and are also both very persistent idiosyncratic shocks and adjustments to these shocks are mainly responsible for cross country heterogeneity the asymmetric transmission of common shocks plays a minor role finally there is no strong evidence that some common shocks lead to greater heterogeneity than others copyright 2009 john wiley sons ltd

the trend in retirement a model with leisure production and endogenous retirement is used to explain declining labor force participation rates of elderly males the model is calibrated to cross sectional data on labor force participation rates of u s males by age their drop in consumption and leisure good expenditure share in 2000 running the calibrated model for the period 1850 2000 a prediction of the evolution of the cross section is obtained the model accounts for more than 87 of the increase in retirement of men over 65 the increase in retirement is driven by rising wages and falling prices of leisure goods

exchange rate volatility and the time varying effects of aggregate shocks abstract this paper investigates the dynamics of the real exchange rate and relative output among the us and five of its top six trading partners since the collapse of bretton woods it employs long run restrictions to identify the usual suspect macroeconomic shocks and their relative importance for exchange rate fluctuations an improvement of the econometric application is that it allows for the contribution of each shock to the real exchange rate and relative output to vary over time while the volatility of us output both total and relative to that of the uk or canada is estimated to have substantially reduced since the mid 1980s consistent with the great moderation findings of many others the volatility of real exchange rates has experienced a gradual and continuous increase over the same period monetary shocks account for only a small fraction of these dynamics although they do track well the increase in volatility of us output during the great inflation period it is supply type shocks that seem to be more important for the relative output volatility reductions of the mid 1980s conversely demand shocks seem to account for the largest portion of the volatility increases in the real exchange rate perhaps unsurprisingly both volatilities increase during the 2007 financial crisis and the ensuing 2008 2009 great recession periods associated with higher economic uncertainty

the political feasibility of pension reform options the case of switzerland this paper investigates the political feasibility of different hypothetical reform options of an unsustainable pay as you go public pension system in calibrating the model to the swiss economy we find that low internal rates of return and high distortions can reduce political support for an increase in earmarked taxes up to a point where a reduction in the size of the social security program receives a majority of votes our simulations show that the consideration of non social security taxes is crucial in welfare analysis this is especially true for countries in which the public pension system is explicitly or implicitly subsidized

identifying the common component of international economic fluctuations a new approach in this paper we develop an aggregation procedure using time varying weights for constructing the common component of international economic fluctuations the methodology for deriving time varying weights is based on some stylised features of the data documented in the paper the model allows for a unified treatment of cyclical and seasonal fluctuations and also accommodates the dynamic propagation of shocks across countries we find evidence for a world business cycle as well as evidence for a distinct european common component we also find some evidence that macroeconomic fluctuations have become more closely linked across industrial economies in the period after 1973 the world economy has become more closely integrated in recent years due to increasing trade and financial flows across countries this has spurred interest in the question of how the ongoing phenomenon of globalisation has affected the transmission and propagation of business cycle fluctuations across national borders an important question in this context is whether a substantial fraction of economic fluctuations are country specific or if there exists a world business cycle which might be defined as fluctuations that are common across all countries more generally the comovement of macroeconomic aggregates across different countries has become a topic of increasing interest in both academic and policy circles these issues have implications in a number of dimensions an empirical analysis of the relative importance of country specific versus common international fluctuations is of relevance for determining the structure of certain classes of international business cycle models from a policy perspective strong comovement of output across countries at business cycle frequencies implies that external trade would be unlikely to play a significant role in dampening fluctuations domestic policies aimed at affecting the real exchange rate and thereby attempting to boost net exports in the short run would then tend to have limited impact the degree of synchronisation of business cycles across countries also has important implications for short run international policy coordination and for assessing the feasibility of monetary unions therefore identifying and analysing the common component of international economic fluctuations is relevant from a number of different perspectives

population aging health care and fiscal policy reform the challenges for japan we construct a transition analysis based on a general equilibrium life cycle model to investigate the effects of aging and we evaluate various policy alternatives designed to lessen the negative influence of aging in particular we analyze reforms of insurance benefits and tax financing tools that were recently the focus of a great amount of attention and debate in japan because of the tense financial situation there we show that although the potential reforms improve the welfare of future generations the political implementation of such reforms is difficult because of the large welfare costs for the current population our analysis suggests that a gradual reform with an intergenerational redistribution will be more politically implementable than an immediate reform

price level convergence and regional phillips curves in the us and emu abstract we use panel estimates of regional phillips curves of the hybrid new keynesian type to study price level convergence within the us and emu regional inflation rates tend to eliminate ppp deviations in both monetary unions with average half lives around 3 years the start of emu did not greatly affect ppp reversion in the euro area where changes in nominal exchange rates accounted for the bulk of the adjustment process before 1999 this role was largely taken over by regional inflation differences since notwithstanding clear evidence of forward lookingness in the us inflation persistence is substantial in both monetary unions

social security and retirement across the oecd abstract employment to population ratios differ markedly across organization for economic cooperation and development oecd countries especially for people aged over 55 years in addition social security features differ markedly across the oecd particularly with respect to features such as generosity entitlement ages and implicit taxes on social security benefits this study postulates that differences in social security features explain many differences in employment to population ratios at older ages this conjecture is assessed quantitatively with a life cycle general equilibrium model of retirement at ages 60 64 years the correlation between the simulations of this study s model and observed data is 0 67 generosity and implicit taxes are key features to explain the cross country variation whereas entitlement age is not

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

bond market and stock market integration in europe a smooth transition approach this article investigates whether there has been a structural increase in financial market integration in nine european countries and the us in the period 1980 to 2003 we employ a garch model with a smoothly time varying correlation to estimate the date of change and the speed of the transition between the low and high correlation regimes our test produces strong evidence of greater comovement across the board for both stock markets and government bond markets dates of change and speeds of adjustment vary widely across country linkages stock market integration is a more gradual process than bond market integration the impact of european monetary union emu is rather limited as it has mainly affected the timing of bond market correlation gains but hardly their size and has had little discernible effect on stock market integration

interconnections between eurozone and us booms and busts using a bayesian panel markov switching var model summary the proposed panel markov switching var model accommodates changes in low and high data frequencies and incorporates endogenous time varying transition matrices of country specific markov chains allowing for interconnections an efficient multi move sampling algorithm draws time varying markov switching chains using industrial production growth and credit spread data several important data features are obtained three regimes appear with slow growth becoming persistent in the eurozone turning point analysis indicates the usa leading the eurozone cycle amplification effects influence recession probabilities for eurozone countries a credit shock results in temporary negative industrial production growth in germany spain and the usa core and peripheral countries exist in the eurozone copyright 2016 john wiley sons ltd

the determinants of uk business cycles this paper considers the causes of post war uk business cycles using an extended stochastic growth model we construct estimates of productivity and preference shocks both of which are highly persistent volatile and potentially capable of explaining uk business cycles we find the productivity term is the dominant explanation of uk output fluctuations but our estimated preference shift is crucial in understanding employment movements a variety of granger causality tests establish whether these productivity and preference terms are unpredictable and so can be potentially considered as the cause of uk business cycles or whether they are themselves granger caused by other variables the aim of business cycle theory is to identify the causes of business cycles and outline the various propagation mechanisms through which these produce cyclical fluctuations the purpose of this paper is to study the former using uk data we investigate the main sources of uk post war business cycles our aim in doing so is to discriminate between competing theories of the business cycle as well as to increase our understanding of particular episodes of uk post war economic history to achieve this aim we focus on two fundamental sources of business cycle fluctuations productivity shocks and a preference shift or more generally a supply and demand shock we choose these because i they can be easily calculated using only published data avoiding the need for any econometric identification assumptions ii they represent the simplest extension to the neoclassical stochastic growth model which can explain observed uk business cycle patterns they therefore form a natural benchmark with which to assess prescott s 1986 claim that this model can account for both growth and business cycles however while our main focus is on these two shocks our methodology is broad enough to allow for a wide range of potential causes of uk business cycles in section 1 of the paper we outline some stylised facts of the uk business cycle and motivate more rigorously our focus on productivity and preference shocks in section 2 we provide estimates of these shocks discuss their univariate properties and examine their correlation with key business cycle variables we find both shocks to be very volatile and persistent with the productivity variable accounting for a large proportion of output fluctuations and preference shifts more important in explaining employment movements simulations show that in combination with a neoclassical growth model these shocks are capable of matching uk business cycles however if

country size aggregate fluctuations and international risk sharing country size measured by either population or gross domestic product gdp is shown to be negatively related to the variances of aggregate output consumption and in vestment and positively related to the contemporaneous correlations of consumption and investment with output in a sample of fifty six countries these results however hold pri marily for the high income countries of the sample a subsample consisting of the twenty countries with the lowest per capita gdp exhibits a significant negative relationship only between investment volatility and country size these empirical regularities are shown to be consistent with the implications of international risk sharing among countries of asymmetric sizes in an international real business cycle model shocks in relatively large countries con stitute world wide risk to a greater extent than do similar shocks in smaller countries thus foreign shocks have a greater impact on small countries causing their aggregates to fluc tuate more and their consumption and investment to be less highly correlated with domestic output

business cycles synchronicity and income levels has globalisation brought us closer than ever research on business cycle linkages shows a tendency to model countries of relatively the same income levels jointly however the issue of whether these countries move along the same business cycles has not been formally investigated in the literature in this paper we take this approach and investigate whether each group of countries follows its own dynamics and is therefore subjected to the same business cycle and whether these cycles are independent of each other across income groups results indicate that high income per capita countries hics tend to be guided by stronger similarity in business cycles than countries in the middle mics and low income lics groups in search for an explanation of the business cycles synchronicity observed panel data analysis was explored the results from the robust fixed effects estimation show neither trade openness nor shocks to consumption underlie international business cycle synchronization but rather shocks to oil prices

seasonal cycles business cycles and monetary policy abstract this paper presents a dynamic general equilibrium model that is consistent with both seasonal and business cycle facts in the u s economy the model features consumption durability and a transaction technology both crucial in accounting for seasonal patterns of nominal variables a calibrated version of the model is used to quantitatively evaluate welfare consequences of three alternative monetary policy rules 1 the fed s historical policy that smooths nominal interest rates at the seasonal frequency but not at the business cycle frequency 2 a constant money growth rule and 3 a constant interest rate rule we find that the historical policy is associated with higher welfare than both alternatives

flat tax reform a quantitative exploration abstract this paper explores quantitatively the general equilibrium implications of a revenue neutral tax reform in which the current income and capital income tax structure in the u s is replaced by a flat tax as proposed by hall and rabushka 1995 the flat tax 2nd ed hoover the central aspects of such reform the impact of tax reform on capital accumulation and labor supply as well as its distributional consequences are analyzed in a dynamic general equilibrium model main results are that i the elimination of the actual taxation of capital income has an important and positive effect on capital accumulation ii mean labor hours are relatively constant across tax systems but aggregate labor in efficiency units increases iii in all circumstances analyzed the distributions of earnings income and especially wealth become more concentrated

determinants of business cycle comovement a robust analysis abstract this paper investigates the determinants of business cycle comovement between countries our dataset includes over 100 countries both developed and developing we search for variables that are robust in explaining comovement using the approach of leamer amer econom rev 73 1983 31 variables considered are i bilateral trade between countries ii total trade in each country iii sectoral structure iv similarity in export and import baskets v factor endowments and vi gravity variables we find that bilateral trade is robust however two variables that the literature has argued are important for business cycles industrial structure and currency unions are found not to be robust

intergenerational policy and the measurement of tax incidence we evaluate the ability of generational accounting to assess the potential welfare implications of policy reforms in an intergenerational context policy reforms usually have redistributive efficiency and general equilibrium implications our analysis shows that when the policy reform implies changes in economic efficiency generational accounts can be misleading not only about the magnitude of welfare changes but also about the identity of who wins and who losses in contrast the generational accounts correctly identify welfare changes when the policy reform has only a pure intergenerational redistribution component we illustrate and quantify this issue in the context of widely considered policy reforms substitution of consumption for labor taxation and the increase of retirement age and in a more general context of optimal policy

income risk macroeconomic and demographic change and economic inequality in japan abstract using an olg model with heterogeneous households we investigate the relationship among income risk macroeconomic and demographic changes and economic inequality between 1980 and 2000 in japan by decomposing the primary factors in earnings and consumption inequality into macroeconomic variables and the demographic variable we find that our model replicates the evolution of economic inequality in japan by performing counterfactual simulations we demonstrate that two factors changes in time varying macroeconomic factors and the unexpected decline in the total factor productivity growth rate played important roles in the increase in earnings and consumption inequality in the 1990s

why do countries and industries with large seasonal cycles also have large business cycles we show that there is a strong positive correlation across countries and industries between the standard deviation of the seasonal component and the standard deviation of the nonseasonal component of aggregate variables after documenting this stylized fact we discuss possible explanations and develop a model that generates our empirical finding the main feature of the model is that firms endogenously choose their degree of technological flexibility as a function of the amounts of seasonal and nonseasonal variation in demand although this model is intended to be illustrative we find evidence supporting one of its key empirical implications

a cross country comparison of seasonal cycles and business cycles in a recent paper barsky and miron 1989 examine the seasonal fluctuations in the u s economy they show that the key stylized facts about the business cycle characterize the seasonal cycle as well and they suggest that the interpretation of many of these stylized facts over the seasonal cycle is easier than interpretation over the business cycle the reason is that the ultimate sources of seasonal cycles are more readily identifiable than those of business cycles this paper uses the cross country variation in seasonal patterns to pin down the ultimate sources of seasonal variation more precisely than is possible from examination of u s data alone we conclude that a christmas shift in preferences and synergies across agents are the key determinants of the seasonal patterns around the world the paper also establishes that across developed countries the key observations about aggregate variables that characterize the business cycle also characterize the seasonal cycle thus the similarity of the seasonal cycle and the business cycle demonstrated by barsky and miron 1989 for the united states is a robust stylized fact this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item this abstract was borrowed from another version of this item

changes in seasonal patterns are they cyclical this paper explores the hypothesis that the seasonal patterns of macroeconomic variables vary with expansions and contractions graphical techniques and generalized predictive tests for structural stability are used to identify and test patterns of changing seasonality a monte carlo exercise shows the power of the tests against interesting alternatives the empirical results suggest that seasonal patterns are unstable and that in many cases changes are linked to the stages of the business cycle the forecasting costs incurred by treating seasonality as constant are discussed and evaluated

the age specific burdens of short run fluctuations in government spending abstract we study the impact of government spending shocks on the distribution of income and wealth between cohorts and the associated welfare effects in a dynamic stochastic overlapping generations model with two types of households ricardian households and rule of thumb consumers we demonstrate that an unexpected increase in government spending decreases income and wealth inequality in contrast to the conventional wisdom that the financing of government expenditures by debt rather than taxes especially burdens young generations we find that debt financing also harms ricardian households during retirement the crucial element in our analysis is a wealth effect that results from the decline in the price of capital due to higher government debt

individual retirement accounts saving and labor supply abstract this paper builds a general equilibrium model of overlapping generations and studies the effects of tax deferred saving and alternative retirement saving policies on life cycle saving and labor supply of households and on the aggregate economy

a cross country financial accelerator evidence from north america and europe a growing literature has examined the importance of credit market imperfections for macroeconomic fluctuations the so called financial accelerator a related literature has provided evidence of international and regional co movements in macroeconomic fluctuations we tie together these strands of the literature in that we investigate the importance of both cross country and country specific credit cycles in explaining output fluctuations using data for four major economies and two world regions from 1973 to 2001 we find that both regional and country specific components of indicators of credit availability are powerful in explaining output movements this research provides the first empirical evidence of a cross country financial accelerator

interaction between the seasonal and business cycles in this paper shows that in several u s manufacturing industries the seasonal variability of production and inventories varied with the state of the business cycle the authors present a simple model which implies that if firms reduce the seasonal variability of their production as the economy strengthens and they either hold constant or increase the stock of inventories they bring into the high production seasons of the year then they must be facing upward sloping and convex marginal cost curves the authors conclude that firms in a number of industries face upward sloping and convex marginal production cost curves copyright 1997 by american economic association

on the optimal progressivity of the income tax code this paper computes the optimal progressivity of the income tax code in a dynamic general equilibrium model with household heterogeneity in which uninsurable labor pro ductivity risk gives rise to a nontrivial income and wealth distribution a progressive tax system serves as a partial substitute for missing insurance markets and enhances an equal distribution of economic welfare these bene cial eects of a progressive tax system have to be traded oagainst the e ciency loss arising from distorting endoge nous labor supply and capital accumulation decisions a determination of the optimal progressivity of the income tax code therefore calls for a quantitative exploration using a utilitarian steady state social welfare criterion we nd that the optimal us income tax is well approximated by a at tax rate of19 5 and a xed deduction of about 3 700 the steady state welfare gains from a fundamental tax reform towards this tax system are equivalent to 0 4 higher consumption in each state of the world an explicit computation of the transition path induced by a reform of the current towards the optimal tax system indicates however that a majority of the population currently alive would suer welfare losses calling into question the political feasibility of such

common and uncommon trends and cycles abstract the paper discusses the concepts of co movements of macro variables in the short run and the long run when different trend cycle decompositions are considered moreover it specifies a model for the trend where identification is achieved by imposing restrictions on the shape of the impulse response function to the permanent shock this is a multivariate generalization of lippi and reichlin 1994 where the trend and the cyclical components are easily derived from the estimation of a var model an empirical section illustrates differences in implications between our suggested decomposition and other decompositions widely used in the literature for a bivariate case of cointegrated variables

optimal retirement with increasing longevity we develop an optimizing life cycle model of retirement with perfect capital markets we show that longer healthy life expectancy usually leads to later retirement but with an elasticity less than unity we calibrate our model using data from the us and find that over the last century the effect of rising incomes which promote early retirement has dominated the effect of rising lifespans our model predicts continuing declines in the optimal retirement age despite rising life expectancy provided the rate of real wage growth remains as high as in the last century

are european business cycles close enough to be just one abstract we propose a comprehensive methodology to characterize the business cycle comovements across european economies and some industrialized countries without imposing any given model but trying to leave the data speak we develop a novel method to show that there is no evidence of a european economy that acts as an attractor to the other economies of the area we show that the establishment of the monetary union has not significantly increased the level of comovements across euro area economies finally we are able to explain an important proportion of the distances across their business cycles using macrovariables related to the structure of the economy to the directions of trade and to the size of the public sector

paradoxical effects of increasing the normal retirement age a prospective evaluation abstract a life cycle model that incorporates both disability insurance di and old age insurance oai is developed to study social security reforms and is compared to an alternative model without di the model with di predicts that increasing the normal retirement age nra causes a decrease in employment and an increase in di receipt and that the decrease of payroll tax revenue and the increase of di expenses combined offset about 40 of the decrease of oai expenses these paradoxical effects of increasing the nra are absent from the model without di i employ both models to search for reforms that will balance the government budget in an economy with an aging population which has the demographics for the year 2100 and find that the required change in tax and benefit rules differ substantially across the two models

business cycle models aggregation and real wage cyclicality a substantial literature has developed to estimate the true cyclicality of real wages that is composition bias free two major issues are addressed in this article aggregation of heterogeneous workers and potential bias in the measurement of the labor input a general analysis of the biases is presented and alternative approaches in the literature are nested in a single framework estimates based on an efficiency units concept that avoids the usual aggregation problems are presented composition bias underestimates the usual parameters of interest unless both the price and the quantity of the labor input are adjusted appropriately

the cyclical and secular behaviour of the labour input comparing efficiency units and hours worked summary a monthly labour input series designed to correct for the fact that all hours worked are not of the same quality is constructed and its properties compared with unadjusted hours worked this efficiency units series is constructed from bls data on hours worked and earnings by age and sex the cyclical fluctuations displayed by the efficiency units series are smaller on average than those displayed by hours worked although the difference is not large however the secular behaviour of the series is quite different hours worked per capita displays a significant positive trend while efficiency units per capita does not

measuring world business cycles using kalman filtering and dynamic factor analysis the authors decompose aggregate output consumption and investment for the g7 countries into factors that are 1 common across all countries and aggregates 2 common across aggregates within a country and 3 specific to each individual aggregate in quarterly data for the period 1970 through 1993 fluctuations in all aggregates contain world and country specific common components that are both statistically significant and quantitatively important the authors find that the world and country specific common components play different roles in different business cycle episodes for each of the seven countries and that either may be dominant during a particular episode copyright 1997 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

international evidence on the historical properties of business cycles we contrast properties of real quantities with those of price levels and stocks of money for ten countries over the last century although the magnitude of output fluctuations has varied across countries and periods relations among real quantities have been remarkably uniform properties of price levels however exhibit striking differences between periods inflation rates are more persistent after world war ii than before and price level fluctuations are typically procyclical before world war ii and countercyclical afterward fluctuations in money are less highly correlated with output in the postwar period but are no more persistent than in earlier periods jel e32 e31

the role of asset testing in public health insurance reform abstract starting slowly with the 1996 welfare reform act and culminating in the 2010 affordable care act means tested public health insurance eligibility expanded to include adults in low income families regardless of their asset holdings this paper quantifies the effects of these eligibility expansions within the context of the 2010 affordable care act i construct a dynamic stochastic general equilibrium model with indivisible labor supply expanded to include an endogenous household choice of health insurance coverage and calibrate it to u s data i establish that changes in the distribution of labor and welfare associated with removal of asset testing are driven by exit of high productivity and high wealth households from the labor market i then expand my analysis to the 2010 affordable care act to demonstrate that removal of asset testing is critical to the obtained results even when combined with other provisions of the act finally i find that a simple asset test for eligibility of health insurance transfers undoes the distortion to the household labor supply decision among high productivity types these results are robust to the introduction of employer premium contributions an independent health insurance market and idiosyncratic shocks to eligibility for employment based health insurance

how does globalization affect the synchronization of business cycles this paper examines the impact of rising trade and financial integration on international business cycle comovement among a large group of industrial and developing countries the results provide at best limited support for the conventional wisdom that globalization has increased the degree of synchronization of business cycles the evidence that trade and financial integration enhance global spillovers of macroeconomic fluctuations is mostly limited to industrial countries one striking result is that on average cross country consumption correlations have not increased in the 1990s precisely when financial integration would have been expected to result in better risk sharing opportunities especially for developing countries this abstract was borrowed from another version of this item

life cycle portfolio choice the role of heterogeneous under diversification the empirical work on household portfolio choice documents two facts one the stock market participation rate is low and hump shaped over the life cycle two the conditional share of stocks is also low but does not appear to change much during the life cycle in contrast the standard life cycle portfolio choice model predicts high and monotonically increasing participation rates and conditional stock shares that are low and exhibit dramatic changes with age in this paper i consider a number of extensions to this basic framework i find that a small per period participation cost is needed to generate a hump shaped life cycle profile of participation rates under a realistic calibration the quantitative effect is minor progressive social security and the assumption that the risk of stock portfolios is declining in household wealth as a consequence of better diversification opportunities an assumption that has some empirical support though provide substantial amplification and significantly improve the ability of the model to match the data under diversification also reduces the average portfolio share of stocks conditional on participation and together with the intergenerational transmission of wealth makes it insensitive to age consistent with the empirical evidence

on the optimality of age dependent taxes and the progressive u s tax system abstract in life cycle economies where an individual s optimal consumption work plan is almost never constant the optimal marginal tax rates on capital and labor income vary with age conversely the progressivity imbedded in the u s tax code implies that marginal tax rates vary with age because tax rates vary with earnings and earnings vary with age using numerical simulations this paper shows that if the tax authority is prevented from conditioning tax rates on age some degree of progressivity is desirable as progressive taxation better imitates optimal age dependent taxes than an optimal age independent tax system this role for progressive taxation emanates from efficiency reasons and does not rely on any insurance nor re distribution arguments

social security reform with self control preferences abstract this paper analyzes a fully funded social security system under the assumption that agents face temptation issues agents are required to save through individually managed personal security accounts without and with mandatory annuitization when the analysis is restricted to crra preferences our results are congruent with the literature in indicating that the complete elimination of social security is among the reform scenarios that maximize welfare however when self control preferences are introduced and as the intensity of self control becomes progressively more severe the social security elimination scenario loses ground very rapidly in fact in the case of relatively severe temptation the elimination of social security becomes the least desirable alternative under the light of the above findings any reform proposal regarding the social security system should consider departures from standard preferences to preference specifications suitable for dealing with preference reversals

spurious deterministic seasonality it is sometimes assumed that the r2 of a regression of a first order differenced time series on seasonal dummy variables reflects the amount of seasonal fluctuations that can be explained by deterministic variation in the series in this paper we show that neglecting the presence of seasonal unit roots may yield spuriously high values of this coefficient

understanding the evolution of world business cycles abstract this paper studies the changes in world business cycles during the period 1960 2003 we employ a bayesian dynamic latent factor model to estimate common and country specific components in the main macroeconomic aggregates output consumption and investment of the g 7 countries we then quantify the relative importance of the common and country components in explaining comovement in each observable aggregate over three distinct time periods the bretton woods bw period 1960 1 1972 2 the period of common shocks 1972 3 1986 2 and the globalization period 1986 3 2003 4 the results indicate that the common g 7 factor explains on average a larger fraction of output consumption and investment volatility in the globalization period than it does in the bw period

the business cycle human capital accumulation nexus and its effect on hours worked volatility abstract this paper studies hours worked volatility and the cyclicality of human capital investments by embedding a ben porath life cycle model of human capital accumulation into an rbc setting agents differ across two dimensions age and productivity in learning our results show that individuals invest more in human capital during economic downturns however human capital accumulation is more counter cyclical for young and low productivity individuals because they face a lower opportunity cost of education and a higher marginal product of human capital these results are confirmed empirically using us data from the current population survey and the american time use survey in addition the paper contributes to the rbc literature by showing that the model s business cycle properties in particular hours worked volatility are sensitive to assumptions of heterogeneity introducing heterogeneity in productivity increases the volatility of aggregate hours worked and changes the life cycle profile for hours volatility to better match the data

temptation driven behavior and taxation a quantitative analysis in a life cycle model i introduction a central research question in the dynamic fiscal policy literature during the last 30 years or so is whether under fairly general modeling choices the government should impose a positive tax on capital income in the long run the original answer to this question is negative and is due to the seminal papers by chamley 1986 and judd 1985 who established that in the context of a standard neoclassical growth model with infinitely lived individuals an optimal income tax policy entails taxing capital at confiscatory rates in the short run and setting capital income taxes equal to zero in the long run only labor income should be taxed in the long run since then several modeling choices that cast doubt on the validity of this result were identified in the literature imrohoroglu 1998 showed that the optimal capital income tax rate is strictly positive in an overlapping generations olg setting where individuals face idiosyncratic earnings risk borrowing constraints and life span uncertainty conesa kitao and krueger 2009 extended imrohoroglu 1998 by adding a labor leisure choice they demonstrated that the optimal capital income tax rate is equal to 36 and concluded that this high rate is mainly driven by the life cycle structure of the model in contrast krusell kuruscu and smith 2010 analytically showed that within a class of ramsey tax schemes the optimal capital income tax rate should be negative that is savings should be subsidized when agents have self control problems moreover in the special case where consumers succumb completely to temptation ramsey taxes deliver first best welfare outcomes and in contrast to the chamley judd result the optimum calls for a subsidy to savings however an integrated assessment of the combined effects of the relevant trade offs both along the dimension of differences in preferences and along the dimension of the scope of capital income taxation versus labor income taxation is missing from all previous studies in both social security and capital taxation literature and this paper aims to bridge the gap in the literature and contribute in this aspect to the best of our knowledge this paper is the first study that introduces temptation driven preferences in a quantitative model aiming to tackle the question on the optimal capital income tax before proceeding to specifically articulate this paper s contribution to the literature we consider critical to address a question that lies at the very core of our line of research namely why fiscal policy models with time inconsistent or self control preferences are relevant in the first place initially the literature pioneered by strotz 1956 and phelps and poliak 1968 corroborated evidence coming from both introspection and experiments that agents exhibit preference reversals as time passes different strands within this literature have suggested that these preference reversals could be induced by either time inconsistent preferences see laibson 1997 or self control preferences gul and pesendorfer 2004 time inconsistent preferences typically assume that agents have sequences of different selves each valuing consumption streams in a unique way in contrast gul and pesendorfer 2004 provide a dynamically consistent model suitable for addressing preference reversals that does not necessitate splitting up the consumer in multiple selves that is self control preferences these preferences describe an individual that in every period is tempted to consume his entire endowment when he consumes less than his endowment he incurs a disutility cost that stems from exercising self control that is self control cost optimal behavior trades off the temptation to consume vis a vis the long run self interest of the individual 1 alongside these theoretical underpinnings there is sound empirical and experimental evidence that agents suffer from self control problems

interest rate arbitrage in currency baskets forecasting weights and measuring risk we use a time series modeling approach to address two related questions of interest to foreign exchange market participants and policy makers dealing with basket currencies first how are unknown weights appropriately extracted from basket currencies second how does one correctly account for the risk in terms of conditional variance of expected profits that time varying weights add to the standard basket hedge position we suggest a methodology that can provide answers to these questions and apply it to the heavily traded thai baht currency basket

similarities and convergence in g 7 cycles this paper examines the properties of g 7 cycles using a multicountry bayesian panel var model with time variations unit specific dynamics and cross country interdependences we demonstrate the presence of a significant world cycle and show that country specific indicators play a much smaller role we detect di erences across business cycle phases but apart from an increase in synchronicity in the late 1990s find little evidence of major structural changes we also find no evidence of the existence of an euro area specific cycle or of its emergence in the 1990s

airline choice switching costs and frequent flyer programmes switching costs are costs that customers face when switching from one firm to another in markets such as the airline market where repeated purchases are common switching costs may be substantial in this paper the switching costs are estimated for domestic airline routes in sweden between 1992 and 2002 in addition the determinants of these switching costs are tested for in particular to what extent factors such as frequent flyer programmes and flag carriers have an effect on switching costs a substantial switching cost is found although a large part of this calculated switching cost can be attributed to perceived quality differences it is also found that frequent flyer programmes contribute a non negligible part of the switching cost the paper ends with a brief discussion on the welfare consequences of switching costs where the connection between habit formation and switching costs is discussed

time inconsistent preferences and social security in this paper we examine the role of social security in an economy populated by overlapping generations of individuals with time inconsistent preferences who face mortality risk individual income risk and borrowing constraints we find that unfunded social security lowers the capital stock output and consumption for consumers with time consistent or time inconsistent preferences however it may raise or lower welfare depending on the strength of time inconsistency

equilibrium heterogeneous agent models as measurement tools some monte carlo evidence abstract this paper discusses a series of monte carlo experiments designed to evaluate the empirical properties of heterogeneous agent macroeconomic models in the presence of sampling variability the calibration procedure leads to the welfare analysis being conducted with the wrong parameters the ability of the calibrated model to correctly predict the long run welfare changes induced by a set of policy experiments is assessed the results show that for the policy reforms with sizable welfare effects i e more than 0 2 the model always predicts the right sign of the welfare effects however the welfare effects can be evaluated with the wrong sign when they are small and when the sample size is fairly limited quantitatively the maximum errors made in evaluating a policy change are very small for some reforms in the order of 0 02 percentage points but bigger for others in the order of 0 6 percentage points finally having access to better data in terms of larger samples does lead to substantial increases in the precision of the welfare effects estimates though the rate of convergence can be slow

cyclical quality adjustment in the labor market 1 introductionthe u s unemployment rate fell to very low levels during the 1990s even more impressively the unemployment rate for minorities and less educated individuals fell disproportionately convergence of relative unemployment rates in expansions and divergence in recessions has been a feature of the u s economy over the last 30 years there are many possible reasons for this feature for example if the costs of hiring and firing less skilled labor are low one would expect these individuals to have very procyclical employment in this paper i explore an alternative model when there is an excess supply of labor high skilled people take jobs that would normally be occupied by less skilled people in expansions the process reverses with less skilled workers getting access to jobs that they would normally not attain i refer to this process as cyclical quality adjustment reder 1955 p 834 was one of the first to discuss how hiring standards adjust to business cycle conditions quality variations in labor markets arise through upgrading and downgrading of members of the labor force relative to the jobs they are to fill when applicants become scarce employers tend to lower the minimum standards upon which they insist as a condition for hiring a worker to fill a particular job and vice versa when applicants become plentiful since then many papers have developed this idea theoretically and many economic commentators appear to share this view of the labor market for example the economic report of the president states that a strong labor market is particularly important to less advantaged groups in the labor market such as workers with less education younger workers racial and ethnic minorities and immigrants when employers find it hard to fill vacancies they are more willing to hire and train workers whom they might pass over when they have fewer openings and an abundance of applicants council of economic advisors 1999 p 103 likewise the expansion during the 1990s spawned many newspaper articles about the improvement in the types of jobs available to less skilled applicants however there is little systematic empirical work about changes in job assignment in the united states over the business cycle the empirical work in this paper seeks to redress this situation cyclical assignment changes are important for many reasons as mentioned earlier job upgrading is a potential explanation for the greater cyclical variation of employment experienced by less skilled workers it is well known that the unemployment rates of less skilled individuals and minorities are more countercyclical relative to more skilled individuals clark and summers 1981 kydland 1984 keane and prasad 1993 hoynes 1999 the standard explanation for this effect is that low ability workers are more likely to be laid off in downturns because training and hiring costs are lower for these workers no commensurate attention has been paid to the issue of how the decision of who to hire changes over the business cycle however assignment models present a natural explanation for the greater procyclicality of employment of the less skilled both the adjustment cost hypothesis and the upgrading hypothesis imply that less skilled workers will have more procyclical employment empirically they are distinguishable because the upgrading explanation implies that jobs obtained by comparable workers should vary systematically over the cycle the adjustment cost hypothesis relates to the composition of those whose jobs are terminated second these mechanisms suggest a reason why wages are particularly procyclical for job changers recent studies using panel data have indicated that the wages of job starters are much more procyclical than the wages of workers who do not change jobs researchers have suggested various explanations for this result beaudry and dinardo 1991 and macleod and malcomson 1993 present contracting models in which the wages of job starters depend on the state of the labor market when they join the firm

pareto improving social security reform when financial markets are incomplete this paper studies an overlapping generations model with stochastic production and incomplete markets to assess whether the introduction of an unfunded social security system leads to a pareto improvement when returns to capital and wages are imperfectly correlated a system that endows retired households with claims to labor income enhances the sharing of aggregate risk between generations our quantitative analysis shows that abstracting from the capital crowding out effect the introduction of social security represents a pareto improving reform even when the economy is dynamically efficient however the severity of the crowding out effect in general equilibrium tends to overturn these gains

measuring business cycles a modern perspective in the first half of this century special attention was given to two features of the business cycle 1 the comovement of many individual economic series and 2 the different behavior of the economy during expansions and contractions both of these attributes were ignored in many subsequent business cycle models which were often linear representations of a single macroeconomic aggregate however recent theoretical and empirical research has revived interest in each attribute separately notably dynamic factor models have been used to obtain a single common factor from a set of macroeconomic variables and nonlinear models have been used to describe the regime switching nature of aggregate output we survey these two strands of research and then provide some suggestive empirical analysis in an effort to unite the two literatures and to assess their usefulness in a statistical characterization of business cycle dynamics

trade integration and business cycle convergence is the relation robust across time and space in this paper we investigate the relationship between trade intensity and the business cycle correlation using a panel data set taken from 24 countries over the period 1959 2003 most previous studies did not account for the possibility that the business cycle correlation may be influenced by unobservable country pair specific effects our estimates using both fixed and random effects methodologies suggest that trade intensity and the business cycle correlation are positively related to one another however detailed investigation shows that this relationship exists mainly for the european countries

wealth inequality and intergenerational links previous work has had difficulty generating household saving behaviour that makes the distribution of wealth much more concentrated than that of labour earnings and that makes the richest households hold onto large amounts of wealth even during very old age i construct a quantitative general equilibrium overlapping generations model in which parents and children are linked by accidental and voluntary bequests and by earnings ability i show that voluntary bequests can explain the emergence of large estates while accidental bequests alone cannot and that adding earnings persistence within families increases wealth concentration even more i also show that the introduction of a bequest motive generates lifetime savings profiles more consistent with the data

endogenous debt constraints in a life cycle model with an application to social security this paper develops a simple life cycle model that embeds a theory of debt restrictions based on the existence of inalienable property rights a la kehoe and levine 1993 debt constrained asset markets review of economic studies 60 4 865 888 2001 liquidity constrained markets versus debt constrained markets econometrica 69 3 575 598 in our environment net debtors have the option of defaulting on unsecured debt at the cost of being subjected to wage garnishment and or having some or all of their future assets seized by creditors one advantage of our framework is that it encompasses two standard versions of the life cycle model one with perfect capital markets and one with a non negative net worth restriction we study the impact of a payroll financed social security system to illustrate the role of endogenous debt constraints and compare our results to a model with exogenous debt constraints whereas the aggregate effects are similar under both types of constraints the distributional consequences are found to be significantly different across debt regimes

the sustainability of bond financed deficits an overlapping generations approach abstract the last decade has witnessed a dramatic and fundamental shift in the expenditure and taxation policies of many western democracies a shift unprecedented in peacetime history balanced budgets have virtually disappeared from the scene in their place deficit financing has arisen as an alternative for many countries becoming a focus of both professional interest and public debate the current literature has examined this issue by assessing the likelihood that governments violate their intertemporal budget constraint this paper takes a different tack we incorporate permanent fiscal deficits into an overlapping generations model and evaluate the implications we already know that if the steady state interest rate is less than the growth rate then permanent deficits are indeed sustainable however this is a necessary but not a sufficient condition in addition these deficits and the current stock of debt must also not be too big we calibrate the model to u s data with plausible parameters of taste and technology derive the theoretical limit to the maximal sustainable deficit implied by this model and discuss the relevance of our findings for current policy issues

output movements in east asia is there a regional factor using lumsdaine and prasad s 2003 methodology to construct a measure of the common component of industrial output fluctuations with time varying weights this study finds that there is a significant regional factor that explains the movement in industrial production output across countries in east asia asean 5 3 the cumulated common component for east asia has very distinct peaks and troughs with turning points occurring about every three years shocks in 2000 2001 coinciding with the bursting of the it bubble appear to be very important as there is a very large decline in the common component of industrial production output larger than that experienced during the 1997 asian financial crisis similar to mckinnon and schnabl s 2003 findings the japanese economy is important for the region as its industrial production output cycle has the largest weight in the construction of the cumulated common component for the region and appears to be the most similar to it nevertheless china s asymmetry with the cumulated component for the region appears to have been beneficial for the region especially in the most recent period

heterogeneity and aggregation implications for labor market fluctuations we demonstrate that aggregate employment and consumption can increase without a corresponding movement in productivity in a model with heterogeneous agents where the only aggregate disturbance is a productivity shock the interaction between incomplete capital markets and indivisible labor results in a low employment productivity correlation and creates a time varying wedge between the marginal rate of substitution for commodity consumption and hours and productivity our results caution against viewing the measured wedge as an inefficiency due to a failure of labor market clearing or as a fundamental driving force behind business cycles jel d31 e32 j22 j24 j31

measures of per capita hours and their implications for the technology hours debate structural vector autoregressions give conflicting results on the effects of technology shocks on hours the results depend crucially on the assumed data generating process for hours per capita we show that the standard measure of hours per capita and productivity have significant low frequency movements that are the source of the conflicting results hodrick prescott hp filtered hours per capita produce results consistent with those obtained when hours are assumed to have a unit root we show that important sources of the low frequency movements in the standard measure are sectoral shifts in hours and the changing age composition of the working age population when we control for these low frequency components to determine the effect of technology shocks on hours using long run restrictions we get one consistent answer hours decline in the short run in response to a positive technology shock we further extend the analysis by examining the effects of demographic controls on the impulse responses to investment specific technology shocks our results are less conclusive

social security and self control preferences abstract we analyze the welfare effects of an unfunded social security system we do so using an overlapping generations economy wherein agents have self control preferences face mortality risk individual income risk and borrowing constraints given our specification of preferences unfunded social security helps reduce the agents temptation to consume in every period consequently the welfare costs it otherwise entails are substantially mitigated while both social security and self control when considered separately reduce welfare their combination renders this effect considerably less severe moreover if the cost of resisting temptation is very high the introduction of social security might even improve welfare

business cycles indicators and forecasting acknowledgments introduction james h stock and mark w watson 1 twenty two years of the nber asa quarterly economic outlook surveys aspects and comparisons of forecasting performance victor zarnowitz and phillip braun comment allen sinai 2 a procedure for predicting recessions with leading indicators econometric issues and recent experience james h stock and mark w watson comment kenneth f wallis 3 estimating event probabilities from macroeconometric models using stochastic simulation ray c fair comment james d hamilton 4 a nine variable probabilistic macroeconomic forecasting model christopher a sims comment pierre perron 5 why does the paper bill spread predict real economic activity benjamin m friedman and kenneth n kuttner comment ben s bernanke 6 further evidence on business cycle duration dependence francis x diebold glenn d rudebusch and daniel e sichel comment bruce e hansen 7 dynamic index models for large cross sections danny quah and thomas j sargent comment john geweke 8 modelling non linearity over the business cycle clive w j granger timo terdsvirta and heather anderson comment andrew harvey contributors author index subject index

international business cycles world region and country specific factors the paper investigates the common dynamic properties of business cycle fluctuations across countries regions and the world we employ a bayesian dynamic latent factor model to estimate common components in macroeconomic aggregates output consumption and investment in a 60 country sample covering seven regions of the world the results indicate that a common world factor is an important source of volatility for aggregates in most countries providing evidence for a world business cycle we find that region specific factors play only a minor role in explaining fluctuations in economic activity we also document similarities and differences across regions countries and aggregates jel f41 e32 c11 c32

determining the motives for a positive optimal tax on capital previous literature demonstrates that in a computational life cycle model the optimal tax on capital is positive and large given the computational complexities of these overlapping generations models it is helpful to to determine the relative importance of the economic factors driving this result i highlight the impact of changing two common assumptions in a benchmark model that generates a large optimal tax on capital similar to the model in conesa et al 2009 first the utility function is altered such that it implies an agent s frisch labor supply elasticity is constant as opposed to increasing over his lifetime second the government is allowed to tax accidental bequests at a separate rate from ordinary capital income the main nding of this paper is that these two changes cause the optimal tax on capital to drop by almost half furthermore i nd that the welfare costs of adopting the high optimal tax on capital from the benchmark model in the model with the altered assumptions which calls for a lower tax on capital are equivalent to 0 35 percent of total lifetime consumption quantifying the impact of these assumptions in the benchmark model is important because the rst has limited empirical evidence and the second although included for tractability confounds a motive for taxing capital with a motive for taxing accidental bequests jel e62 h21

effects of inflation on wealth distribution do stock market participation fees and capital income taxation matter abstract the effects of a permanent change in inflation on the distribution of wealth are analyzed in a general equilibrium olg model that is calibrated with regard to the characteristics of the us economy poor agents accumulate savings predominantly in the form of money while rich agents participate in the stock market and accumulate equity higher inflation results in higher nominal interest rates and a higher real tax burden on interest income surprisingly an increase in inflation results in a lower stock market participation rate in addition savings decrease and the distribution of wealth becomes even more unequal

life cycle portfolio choice with liquid and illiquid financial assets abstract traditionally quantitative models that have studied households portfolio choices have focused exclusively on the different risk properties of alternative financial assets we introduce differences in liquidity across assets in the standard life cycle model of portfolio choice more precisely in our model stocks are subject to transaction costs as considered in recent macroliterature we show that when these costs are calibrated to match the observed infrequency of households trading the model is able to generate patterns of portfolio stock allocation over age and wealth that are constant or moderately increasing thus more in line with the existing empirical evidence

cyclical dynamics of industrial production and employment markov chain based estimates and tests abstract the purpose of this paper is to understand differences in cyclical phenomena across a broad range of developed and emerging countries based on the behavior of two key economic times series industrial production and employment the paper characterizes the series in question as a recurring markov chain univariate processes are estimated for each series individually and a composite indicator is constructed by using information on both series based on tests of equality of the estimated markov chains across countries as well as the expected times to switch between different states we find evidence that i the developed and emerging economies are de coupled from each other in terms of their cyclical dynamics and ii the behavior of industrial production and employment growth are de coupled for the emerging economies our results suggest new directions for the analysis of emerging economy cyclical fluctuations

labor supply elasticity and social security reform abstract previous literature on social security reform has used a variety of period utility functions and calibrated values for the intertemporal elasticity of substitution ies in labor in this paper we show that the effects of social security reforms on aggregate labor supply are invariant to plausible values of the ies but the effect of such reforms on the profile of hours over the life cycle is highly sensitive to the ies we first establish these results analytically in a simple partial equilibrium setting and then demonstrate their robustness in a general equilibrium model calibrated to match key u s macroeconomic indicators we find that the aggregate effects are similar regardless of the wide range of the values of ies used in calibrated economies however social security reform leads to a large reallocation of hours worked over the life cycle from early years to later working years and the size of this reallocation significantly increases with the ies

the role of international factors in the business cycle a multi country study abstract empirical research has been conducted on the various theories of the business cycle over many countries however very little research has attempted to undertake a multi country disaggregate investigation into the sources of output change this paper decomposes fluctuations in industry output in a particular country into 1 a nation specific shock 2 an industry specific shock 3 a common shock and 4 an idiosyncratic factor using a dynamic factor analysis state space approach the paper finds that the industry specific impulse explains a significant but small part of the variance of the forecast error this provides limited support for the disaggregated real business cycle paradigm

measuring the world economy this paper provides an empirical assessment of whether the world economy has become smaller in terms of economic distance over the last decades we adopt a cross sectional spatial econometric approach relating domestic output volatility to distance weighted averages of other countries output volatility using a sample of 135 countries and rolling 10 year time windows over the period 1955 to 2006 using descriptive measures test statistics and spatial econometric estimates we find that cross country interdependence was virtually insignificant in the early post war period but has increased strongly from the mid 1960s to the mid 1980s and remained at a high level since then results for the most recent period suggest that common shocks to output volatility have a magnified impact and roughly quadruplicate through international spillover effects which are transmitted through both trade and financial openness

human capital prices productivity and growth separate identification of the price and quantity of human capital has important implications for understanding key issues in labor economics and macroeconomics price and quantity series are derived and subjected to robustness checks the human capital price series associated with dierent education levels are highly correlated and exhibit a strong secular trend three result

optimal taxation in a habit formation economy abstract this paper studies habit formation in consumption preferences in a dynamic mirrlees economy we derive optimal labor and savings wedges based on a recursive approach we show that habit formation creates a motive for subsidizing labor supply and savings in particular habit formation invalidates the well known no distortion at the top result we demonstrate that the theoretical findings are quantitatively important in a parametrized life cycle model average labor and savings wedges fall by more than one third compared with the case of time separable preferences

variation in employment growth in canada the role of external national regional and industrial factors this article investigates the effect of external national and sectoral shocks on canadian employment fluctuations at the national industrial and provincial levels we assume that employment growth in each industry province pair depends on u s growth lagged canadian growth at the national industrial and provincial levels an aggregate shock and shocks specific to each industry province and industry province pair we estimate that the u s and canadian shocks account for two thirds and a quarter respectively of aggregate variation sectoral shocks account for only one tenth of aggregate variation but represent 30 of the variation from canadian sources