stabilization policy a reconsideration i introduction in 1936 keynes s general theory explained how fiscal and monetary policy could be used to end depressions since that time no developed country has ever seen a downturn on the scale of the 1930s the general theory was not just a how to book on the avoidance of depressions it was an argument for stabilization policy itself the years since the general theory have seen a revolt against keynesian economics in a revisionist mode milton friedman argued that countercyclical policy cannot affect the average level of unemployment and output robert lucas and thomas sargent 1979 went further contending that it is not only impossible to increase average output it is also impossible to stabilize it more recently lucas 1987 2003 has argued that policies to stabilize output even if effective would yield negligible welfare gains thus stabilization policy should not be a macroeconomic priority lucas s conclusion notwithstanding stabilization policy has long been an explicit or implicit objective of monetary policy in most industrial countries even including those countries with inflation targets the volatility of output has in fact declined in most major industrial countries since the mid 1980s and monetary policy arguably deserves at least partial credit see bernanke 2004 mirroring practice monetary policy research commonly takes it as given that along with price stability stabilization policy the minimization of squared deviations of output around potential is an appropriate policy objective see for example clarida et al 1999 in this article we explore the economic rationale for stabilization as a policy goal concluding that it does in fact deserve high policy priority we survey a large body of literature that critiques the validity of key assumptions in lucas s argument we also offer suggestive evidence that stabilization policy can significantly reduce average levels of unemployment by providing stimulus to demand in circumstances where unemployment is high but underutilization of labor and capital does little to lower inflation a monetary policy that vigorously fights high unemployment should however also be complemented by a policy that equally vigorously fights inflation when it rises above a modest target level the federal reserve act thus wisely enunciated price stability and maximum employment as twin goals for monetary policy ii the case against stabilization policy macroeconomic analysis typically assumes that social welfare depends negatively on both inflation above a modest target level here assumed zero and unemployment above some minimum socially efficient level for example a standard social welfare function is the discounted sum of period losses l sub t of the form see among others barro and gordon 1983 pp 592 93 1 l sub t a u sub t 1 k u sup 2 b pi sup 2 sub t where u sub t and pi sub t are the unemployment and inflation rates in period t and u sup is the natural rate of unemployment the coefficient k is positive reflecting the desirability of unemployment below the natural rate because real economies deviate in many respects from perfect competition the natural rate of unemployment is likely to exceed the socially optimal unemployment rate for example with monopolistic competition goods are underproduced because they are priced above marginal cost so potential output is inefficiently low and equilibrium unemployment is too high standard macroeconomic analysis additionally assumes that inflation is determined by an expectations augmented accelerationist phillips curve of the form 2 pi sub t pi sup e sub t f u sub t u sup epsilon sub t where pi sup e sub t is the expected inflation rate at time t with expectations formed at t 1 and epsilon sub t captures supply shocks to the phillips curve at t

interrupted work careers depreciation and restoration of human capital the quantitative effects and even the existence of a human capital depreciation phenomenon have been a subject of controversy in the recent literature prior work however was largely cross sectional and the longitudinal dimension if any was retrospective using longitudinal panel data on married women in nls we have now established that real wages at reentry are indeed lower than at the point of labor force withdrawal and the decline in wages is greater the longer the interruption another striking finding is a relatively rapid growth in wages after the return to work this rapid growth appears to reflect the restoration or repair of previously eroded human capital the phenomenon of depreciation and restoration is also visible in data for immigrants to the united states however while immigrants eventually catch up with and often surpass natives returnees from the nonmarket do not fully restore their earnings potential

unemployment hysteresis and the natural rate hypothesis i introduction rod cross et al university of st andrews ii reflections on hysteresis and the natural rate 1 the irrelevance of the natural rate lawrence summers harvard university 2 on the history of hysteresis rod cross university of st andrews iii the characteristics of the unemployed 1 unemployment vacancies and the long term unemployed peter smith l b s paul levine south bank polytechnic alan budd l b s 2 characteristics of the long term unemployed evidence from the labour force survey stephen creigh department of employment 3 is unemployment irreversible peter r hughes department of employment gillian hutchinson queen mary college london iv analysis of hysteresis effects 1 union activity and wage employment movements assar lindbeck institute for international studies university of stockholm and dennis snower birkbeck college london 2 a simple model of imperfect competition with walrasian features huw dixon birkbeck college london 3 unemployment and worker quality simon price university of bristol 4 screening in labour markets with heterogeneous workers inge schnell university of bonn and l s e iv hysteresis effects and the explanation of aggregate unemployment 1 testing for multiple natural rates of unemployment in the british economy alan carruth university of kent and andrew oswald centre for labour economics l s e 2 why is wage inflation in britain so high stephen nickell university of oxford 3 phillips curve estimates incorporating a natural rate with hysteresis effects david coe o e c d 4 hysteresis and european unemployment olivier blanchard m i t and lawrence summers harvard university 5 the natural rate empirical fact or theoretical straitjacket tim jenkinson merton college oxford iv panel discussion the implications of hysteresis effects for unemployment policy 1 david stanton employment market research unit department of employment 2 charles adams i m f 3 marcus miller university of warwick 4 peter mcgregor fraser of allander institute university of strathclyde

are monetary policy reaction functions asymmetric the role of nonlinearity in the phillips curve abstract this paper investigates the implications of a nonlinear phillips curve for the derivation of optimal monetary policy rules combined with a quadratic loss function the optimal policy is also nonlinear with the policy maker increasing interest rates by a larger amount when inflation or output are above target than the amount it will reduce them when they are below target specifically the main prediction of our model is that such a source of nonlinearity leads to the inclusion of the interaction between expected inflation and the output gap in an otherwise linear taylor rule we find empirical support for this type of asymmetries in the interest rate setting behaviour of four european central banks but none for the us fed

an evaluation of alternative monetary policy rules in a model with capacity constraints a small model of the u s output inflation nexus is used to examine the implications of two policy rules one where the interest rate responds to contemporaneous inflation and one where the response is a forecast of future inflation the model is asymmetric in that positive deviations of aggregate demand from potential are more inflationary than negative deviations are disinflationary with asymmetry following a myopic rule and allowing the economy to overheat requires deep or protracted recessions to control inflation whereas following a forward looking rule not only reduces volatility but also raises the equilibrium level of output shifts in the stance of monetary policy influence the economy and financial markets with a considerable lag as long as a year or more the challenge of monetary policy is to interpret current data on the economy and financial markets with an eye to anticipating future inflationary forces and to countering them by taking action in advance alan greenspan 1994 p 609

inflation targeting with nairu uncertainty and endogenous policy credibility abstract stochastic simulations are employed to compare performances of monetary policy rules in linear and nonlinear variants of a small macro model with nairu uncertainty under different assumptions about the way inflation expectations are formed cases in which policy credibility is ignored or treated as exogenous are distinguished from cases in which credibility and inflation expectations respond endogenously to the monetary authorities track record in delivering low inflation it is shown that endogenous policy credibility strengthens the case for forward looking inflation forecast based rules relative to backward looking taylor rules

learning by doing and investment in training a synthesis of two rival models of the life cycle this paper provides a theoretical synthesis of recent discussions of learning by doing and investment in training as alternative forms of human capital accumulation these theoretical notions relate to essentially different phenomena in particular pace becker and mincer investment in training does not completely encompass learning by doing the paper then develops a model in which human capital accumulation occurs via both training and learning by doing the joint training learning model since it is more general then pure models in which all accumulation occurs via either training or learning avoids certain restrictive and seemingly implausible implications of either kind of pure model however the joint model also has implications that while compatible with stylized facts about the life cycle are sharper than those of either kind of pure model for example the joint model implies that market time and earnings must rise early in the life cycle while neither pure model without corners does so finally the notion of learning by doing provides a rationale for an empirical finding that has recently received attention to the effect that the rate of depreciation of human capital is not constant but rather depends on the extent to which it is used in market activities

the time varying nairu and its implications for economic policy the nairu the unemployment rate consistent with a constant rate of inflation is estimated in this paper as a parameter allowed to vary over time value is determined in an econometric model where the inflation rate depends on its past values demand and supply shocks the nairu estimated for the gdp deflator varies over the past forty years within 5 4 to 6 5 percent its estimated value for the most recent quarter 1996 q2 is 5 6 percent the nairu has declined in recent years in response to global competition immigration other factors weakening labor s bargaining position and the rapidly declining prices of computers and other electronics

loss aversion and the asymmetric transmission of monetary policy there is widespread evidence that monetary policy exerts asymmetric effects on output over contractions and expansions in economic activity while price responses display no sizeable asymmetry to rationalize these facts we develop a dynamic general equilibrium model where households utility depends on consumption deviations from a reference level below which loss aversion is displayed state dependent degrees of real rigidity and elasticity of intertemporal substitution in consumption generate competing effects on output and inflation contractions face the central bank with higher responsiveness of output to interest rate changes as well as a flatter aggregate supply schedule

expected social welfare under a convex phillips curve and asymmetric policy preferences this paper evaluates the expected social welfare implications of monetary policy with a convex phillips curve under a symmetric loss function and an asymmetric loss function corresponding to the opportunistic approach to disinflation the convex asymmetric specification yields an inaction range of inflation shocks for which the optimal monetary policy setting does not adjust for parameter estimates relevant to the united states numerical simulations show that the symmetric loss function dominates the asymmetric alternative in expected social welfare terms asymmetric policy preferences enhance social welfare only under extreme parameter values this result is robust to sensitivity analysis with respect to inflation variability and the degrees of phillips curve convexity and preference asymmetry thereby supporting arguments for a tough anti inflationary stance by the federal reserve regardless of the true social loss function

the modern view of macroeconomics some critical reflections david romer has proposed a new basic macroeconomic framework the is mp ia model its proponents claim that it represents the modern view of macroeconomics we show that the new framework remains closely attached to the neoclassical synthesis and in addition does not take account of i the empirical evidence on the output inflation trade off ii the evidence on the interdependence of aggregate demand and supply iii the institutional limits of monetary policy and iv the implications for macroeconomic policy of i ii and iii once these aspects have been incorporated short run stabilisation policy is not neutral in the long run the notion of a natural rate of interest becomes untenable and aggregate demand turns into the crucial exogenous variable copyright 2005 oxford university press

the effects of interrupted schooling on wages data from the national longitudinal survey of youth reveal that 35 percent of white men who leave school between 1979 and 1988 return to school by 1989 this paper examines the wage effects of these nontraditional enrollment patterns i estimate a wage model which allows individuals to follow a different wage path before and after their reenrollment and an alternative model which does not account for school and work discontinuities i find that young men who delay their schooling receive wage boosts that are smaller than those received by their continuously schooled counterparts wage models that fail to account for delayed schooling tend to understate the returns to schooling received prior to the start of the career

one for some or one for all taylor rules and interregional heterogeneity we document a novel empirical phenomenon the u s federal reserve appears to set interest rates partly in response to regional economic disparities this result is robust even after controlling for factors such as the central bank s forecasts and a battery of explanatory variables we argue that this likely does not reflect an explicit concern about regional differences by policymakers but instead can be explained by a model with nonlinear regional phillips curves consistent with the predictions of this model we find that the federal reserve responds disproportionately to fluctuations in low unemployment states alternative explanations cannot account for this finding

is the inflation output nexus asymmetric in the euro area abstract this paper challenges the assumption that the inflation process within the euro area is well described by a linear accelerationist phillips curve and investigates a nonparametric framework how inflation is sensitive output an asymmetric output inflation trade off is pointed out in the euro area at both aggregated and individual country levels

the quest for prosperity without inflation abstract in recent years activist monetary policy rules responding to inflation and the level of economic activity have been advanced as a means of achieving effective output stabilization without inflation advocates of such policies suggest that their flexibility may yield substantial stabilization benefits while avoiding the excesses of overzealous discretionary fine tuning such as is thought to characterize the experience of the 1960s and 1970s in this study i present evidence suggesting that these conclusions are misguided using an estimated model i show that when informational limitations are properly accounted for activist policies would not have averted the great inflation but instead would have resulted in worse macroeconomic performance than the actual historical experience the problem can be attributed in large part to the counterproductive reliance of these policies on the output gap the analysis suggests that the dismal economic outcomes of the great inflation may have resulted from an unfortunate pursuit of activist policies in the face of bad measurement specifically overoptimistic assessments of the output gap associated with the productivity slowdown of the late 1960s and early 1970s

credit growth monetary policy and economic activity in a three regime tvar model we employ a threshold vector autoregression tvar methodology in order to examine the nonlinear nature of the interactions among credit market conditions monetary policy and economic activity we depart from the existing literature on the subject along two dimensions first we focus on a model in which the relevant threshold variable describes the state of economic activity rather than credit market conditions second in contrast to the existing tvar literature which concentrates exclusively on single threshold models we allow for the presence of a second threshold which is overwhelmingly supported by all relevant statistical tests our results indicate that the dynamics of the interactions among credit market conditions monetary policy and economic activity change considerably as the economy moves from one phase of the business cycle to another and that single threshold tvar models are too restrictive to fully capture the nonlinear nature of those interactions the impact of most shocks tends to be largest during periods of sub par economic growth and smallest during times of moderate economic activity by contrast credit risk shocks have the largest impact when output growth is considerably above it long term trend

the u s phillips curve the case for asymmetry abstract recent statistical rejections of convexity in the phillips curve have been uninformative because researchers have employed measures of business cycle gaps that are inconsistent with the implications of convexity the paper shows that identifying convexity in the phillips curve will become even more difficult if policymakers are successful in avoiding large boom and bust cycles to the extent that convexity in the phillips curve is used as a rationale for stabilization policy our findings present an interesting conundrum because successful policymakers will further weaken the empirical evidence on which such policies are based

estimating potential output as a latent variable this article proposes a new method for estimating potential output in which potential real gross domestic product gdp is modeled as an unobserved stochastic trend and deviations of gdp from potential affect inflation through an aggregate supply relationship the output and inflation equations together form a bivariate unobserved components model which is estimated via maximum likelihood through the use of the kalman filter algorithm the procedure yields a measure of potential output and its standard error and an estimate of the quantitative response of inflation to real growth and the output gap

the stability of the turkish phillips curve and alternative regime shifting models this article presents empirical evidence supporting instability of the phillips curve in turkey we employ the multiple structural break models and the markov switching models and then evaluate the performance of the two models the data pertain to the monthly inflation rate in turkey for the period of 1987 to 2004 the results show that the turkish phillips curve is not linear there exists no evidence on the asymmetry in the inflation response to output gap the persistence of inflation is found to be much lower than in linear models after 2001 slight decline in persistence of inflation is observed there exits weaker support for the phillips curve for the periods where the policymakers attempt to take the advantage of the tradeoff between output and inflation relationship

monetary policy trade offs and the correlation between nominal interest rates and real output the authors present a structural model of the u s economy that combines their price contracting specification with a term structure relationship an aggregate demand curve and a monetary policy reaction function the model matches important features of postwar data well and provides a structural explanation of the correlation between real output and the short term nominal rate of interest the authors perform a battery of monetary policy experiments that show that as viewed through the lens of this model monetary policy has struck a good balance recently among competing monetary policy objectives copyright 1995 by american economic association

training and lifetime income this paper challenges the notion that on the job training investments are quantitatively important for workers welfare and argues that on the job training may not increase lifetime income by more than 1 percent i argue that it is very difficult to reconcile the slowdown in wage growth late in a worker s career with optimizing behavior unless the technology for learning on the job is such that it generates very low gains from training the analysis is based on a nonparametric methodology for estimating the learning technology from wage profiles the results are arrived at by comparing the lifetime income when the worker optimally invests in his human capital to the one where he does not make any investments jel e24 j24 j31

inflation zone targeting abstract we study optimal monetary policy design in a simple model that deviates from the linear quadratic paradigm and provides a rationale for the practice of inflation zone targeting we show that the presence of either zone quadratic preferences or a zone linear relationship between inflation and economic activity provides strong incentives to deviate from conventional linear policies we calibrate the model based on parameters for the united states and the euro area and employ a numerical dynamic programming algorithm to derive the optimal policies with this algorithm we examine the role of uncertainty model structure and relative preference towards economic stability in determining the width of the implied targeted inflation zone

nonlinearity in the fed s monetary policy rule this paper investigates the nature of nonlinearities in the monetary policy rule of the us fed using the flexible approach of hamilton 2001a we find that while there is significant evidence of nonlinearity for the period to 1979 there is little such evidence for the subsequent period possible asymmetries in the fed s reactions to inflation deviations from target and the output gap in the 1960s and 70s may tell part of the story but do not capture the entire nature of the nonlinearity the inclusion of the interaction between inflation deviations and the output gap as recently proposed appears to characterize the nonlinear policy rule more adequately

production inflexibilities and the cost channel of monetary policy this article shows how the existence of production inflexibilities in the form of capacity utilization constraints conditions the magnitude of the response of macroeconomic variables to a money supply stimulus capacity is modeled under explicit microfoundations where the existence of idiosyncratic demand uncertainty generates variable utilization rates across firms in this context money has real effects due to non fisherian effects stemming from limitations in households access to the financial market firms capacity constraints generate a convex aggregate supply curve which is a feature of the economy that has important implications for the conduct of monetary policy

rational choice under an imperfect ability to choose we consider an individual who lacks the information processing capacity required for a direct comparison of all feasible allocations instead of finding at once a best allocation the individual myopically adjusts his current allocation toward higher utility the individual makes adjustment errors inversely proportional to his ability to choose we compare the stationary state of this process with the standard model we see how an imperfect ability to choose modifies both positive and normative predictions of the standard model and how the standard model can be obtained from our more general one as the special case corresponding to perfect ability jel d 11

asymmetric monetary policy rules in australia abstractin this study the hypothesis that the reserve bank of australia rba implements an asymmetric monetary policy rule is tested we estimate both linear and asymmetric monetary policy reaction functions for the period before inflation targeting was adopted for the period when inflation targeting was explicitly adopted and for the full sample period the results of the linear monetary policy rules are consistent with the estimates reported from other studies that estimate linear monetary policy rules for australia on the other hand the results of estimating the asymmetric monetary policy rules for the pre inflation targeting period shows that the rba had reacted symmetrically suggesting that it had acted with the same aggressiveness towards both inflation and output gaps of the same magnitude over both phases of the business cycle however for the inflation targeting period the results show that the rba had reacted asymmetrically in its policy response to the inflation gap output gap or both