learning and wage dynamics we develop a dynamic model of learning about worker ability in a competitive labor market the model produces three testable implications regarding wage dynamics 1 although the role of schooling in the labor market s inference process declines as performance observations accumulate the estimated effect of schooling on the level of wages is independent of labor market experience 2 timeinvariant variables correlated with ability but unobserved by employers such as certain test scores are increasingly correlated with wages as experience increases and 3 wage residuals are a martingale we present evidence from the nlsy that is broadly consistent with the model s predictions

the policy preferences of the us federal reserve in this paper we model and explain us macroeconomic outcomes subject to the discipline that monetary policy is set optimally exploiting the restrictions that come from optimal policymaking we estimate the parameters in the federal reserve s policy objective function together with the parameters in its optimization constraints for the period following volcker s appointment as chairman we estimate the implicit inflation target to be around 1 4 and show that policymakers assigned a significant weight to interest rate smoothing we show that the estimated optimal policy provides a good description of us data for the 1980s and 1990s

alternative maximum likelihood estimation of structural vector autoregressive models partially identified with short run restrictions this paper presents an alternative maximum likelihood estimation method for partially identified vector autoregressive models this method might be especially useful to handle very large systems of variables by reducing the dimension of the likelihood space as an application we consider an open economy model to investigate the effects of monetary policy on exchange rates and term structures we find that exchange rates tend to overshoot and term structures have hump shaped responses to monetary policy shocks

seigniorage and conventional taxation with multiple exogenous shocks abstract the correlation between seigniorage and conventional taxation is investigated in a dynamic optimizing model which contains three shocks to government expenditure and to the deadweight losses associated with conventional taxation and seigniorage asymmetric costs of adjusting revenue and potential absence of the availability of debt solutions and impulse response functions from the theoretical model are used to construct a three variable structural vector autoregression var and identify the empirical reduced form var judged by the parameter estimates empirical impulse response functions forecast error variance decompositions and historical decompositions of the time series identification is successful and the econometric results are supportive of the theoretical model

shocking the eurozone abstract in this paper the monetary transmission mechanism within the european monetary union is investigated the impulse response functions and forecast error variance decompositions of a structural vector error correction model svecm are compared with those of a new keynesian theoretical model the identifying restrictions of the svecm are directly derived from the theoretical model two permanent shocks are identified one having only nominal and one having only real effects the three transitory shocks comprise a short term interest rate shock an aggregate demand shock and a money demand shock the main conclusions are that permanently reducing the inflation objective depresses output in the first year but has no real effects in the long run regarding output variability the results indicate that aggregate demand shocks are most important during the first year after which aggregate supply shocks dominate

is the us dollar a suitable anchor for the newly proposed gcc currency responses of inflation and non oil output growth from the gulf cooperation council gcc countries to monetary policy shocks from the united states us were estimated to determine whether there is evidence to support the us dollar as the anchor for the proposed unified currency a structural vector autoregression identified with short run restrictions was employed for each country with fed funds rate as the us monetary policy instrument non oil output growth and inflation the main results suggest that for inflation the gcc countries show synchronised responses to monetary policy shocks from the us which are similar to inflation in the us and for non oil output growth there is no clear indication that us monetary policy can be as effective for the gcc countries as it is domestically consequently importing us monetary policy via a dollar peg may guarantee only stable inflation for the gcc countries not necessarily stable non oil output growth if the non oil output response is made conscientiously and there are concerns over the dollar s ability to perform its role as a store of value a basket peg with both the us dollar and the euro may be a sound alternative as confirmed by the variance decomposition analysis of our augmented svar with a proxy for the european short term interest rate

using the aggregate demand aggregate supply model to identify structural demand side and supply side shocks results using a bivariate var this paper uses the short run restrictions implied by a simple aggregate demand aggregate supply model as an aid in identifying structural shocks combined with the blanchard quah restriction it allows estimation of the slope of the aggregate supply curve the variances of structural demand and supply shocks and the extent to which structural demand and supply shocks are correlated this paper finds that demand and supply shocks are highly correlated and that demand shocks possibly can account for as much as 82 of the long run forecast error variance of real u s gdp

bonuses and promotion tournaments theory and evidence standard models of promotion tournaments do not distinguish between wages and bonuses and thus cannot explain variation in the use of bonuses we combine classic and market based tournament theories to develop a model in which wages and bonuses serve distinctly different roles we use this model to derive testable predictions which we test employing both a single firm data set and a data set encompassing a large segment of the finnish economy our empirical analysis supports the testable predictions and shows that our theoretical approach better matches the data than alternative theories of bonus determination based on arguments already in the literature

will the new keynesian macroeconomics resurrect the is lm model the is lm model has no greater prospect of being a viable analytical vehicle for macroeconomics in the 1990s than the ford pinto has of being a sporty reliable car for the 1990s because of its treatment of expectations the is lm model as traditionally constructed and currently used is a hazardous base on which to build positive theories of business fluctuations and to undertake policy analysis to simplify economic reality sufficiently to use the is lm model as an analytical tool economists must essentially ignore expectations we now know that this simplification eliminates key determinants of aggregate demand the last two decades of research have taught economists that the assumption of rational expectations is a powerful part of economic explanations of individual and market behavior ranging from consumption and investment dynamics to pricing of stocks and bonds the emphasis on expectations in the macro model is the end result of a process of building microeconomic underpinnings that was initiated in the 1950s and 1960s when the goal was to develop dynamic theoretical foundations for the is and lm schedules inevitably consideration of dynamic choice pushed the question of expectations to the forefront as a result most of the equations of the is lm model are now viewed as summarizing purposeful economic behavior in which choices over time play a central role however as we will see this finding means there is no way to maintain traditional uses of the is lm model

comparative advantage learning and sectoral wage determination we develop a model in which a worker s skills determine the worker s current wage and sector the market and the worker are initially uncertain about some of the worker s skills endogenous wage changes and sector mobility occur as labor market participants learn about these unobserved skills we show how the model can be estimated using nonlinear instrumental variables techniques we apply our methodology to study wages and allocation of workers across occupations and industries using individual level panel data from the national longitudinal survey of youth we find that high wage sectors employ high skill workers and offer high returns to workers skills

growth rate heterogeneity and the covariance structure of life cycle earnings using u s panel data on adult males i compare the profile heterogeneity model of earnings dynamics in which the earnings experience profile varies across individuals to a competing model in which earnings has a unit root the latter specification enjoys increasing popularity among researchers my analysis questions this favor suggesting the profile heterogeneity model provides a more consistent representation of the data i also provide new estimates of the variation in earnings growth rates previous evidence is from relatively unrepresentative samples individuals one standard deviation above the mean enjoy a 20 30 earnings advantage in just 10 years

economic determinants of the nominal treasury yield curve abstract macroeconomic shocks account for most of the variability of nominal treasury yields inducing parallel shifts in the level of the yield curve we develop a new approach to identifying macroeconomic shocks that exploits model based empirical shock measures technology shocks shift yields through their effect on expected inflation and the term premium shocks to preferences for current consumption affect yields through their impact on real rates and expected inflation for both shocks the systematic reaction of monetary policy is an important transmission pathway we find little evidence that fiscal policy shocks are an important source of interest rate variability

a combined measure of uk core inflation estimates this article estimates uk core inflation in a structural vector autoregression var framework while building on the work of quah and vahey 1995 we extend their two variable var model to allow for different dynamics depending on the nature of the shocks that potentially influence the process of core inflation we also construct a combined measure of core inflation estimates on the basis of their reliabilities empirical evidence shows that the new measures demonstrate marked improvement in their eligibility to serve as core inflation estimators furthermore the combined measure is shown to perform best it appears that the conventional core measures such as the retail prices excluding mortgage interest payments rpix and the harmonized index of consumer prices hicp inflation series are not successful in capturing the underlying trend of inflation casting some doubt on their current use in the making of monetary policy decisions

early starters versus late beginners we consider a model of wage formation characterized by two features learning and downward rigidity we show that wages should exhibit a late beginning property when one controls for the wage at date t the wage at date t 1 should be negatively correlated with the wage at date 6 1 we test this property on a sample of about 1 000 executives of a french state owned firm whose careers we observe for 15 years this organization exhibits the features that charecterize internal labor markets in particular careers consist of sequences of discrete promotions a fact that generates specific econometric problems the results confirm the prediction

descomposicion historica de la inflacion en peru distinguiendo entre choques de demanda y choques de oferta this paper analyzes and distinguishes the role and importance of the shocks related to the aggregate demand and aggregate supply on the behavior of the peruvian inflation during the period 1997 1 2009 2 we use the methodology based on structural vector autoregressive svar models using a long run identification based on blanchard and quah 1989 which allows to obtain the historical decomposition of the annual inflation unlike salas 2009 this paper uses a more simple model of aggregate demand and aggregate supply and a larger sample the results show that the behavior of inflation was largely explained for shocks related to the aggregate demand side in comparison with aggregate supply shocks furthermore the results of the variance decomposition of the prediction error show that in the short and long term the shocks of the demand side explain around 70 and 60 of the movements of the inflation the results are robust to the inclusion of different variables in the set of information

news noise and fluctuations an empirical exploration a common view of the business cycle gives a central role to anticipations consumers and firms continuously receive information about the future which is sometimes news and sometimes just noise based on this information consumers and firms choose spending and because of nominal rigidities spending affects output in the short run if ex post the information turns out to be news the economy adjusts gradually to a new level of activity if it turns out to be just noise the economy returns to its initial state therefore the dynamics of news and noise generate both short run and long run changes in aggregate activity this view appears to capture many of the aspects often ascribed to fluctuations the role of animal spirits in affecting demand spirits coming here from a rational reaction to information about the future the role of demand in affecting output in the short run together with the notion that in the long run output follows a natural path determined by fundamentals in this paper we examine whether this view is consistent with the data we reach three main conclusions the first two methodological the third substantive structural vars typically cannot recover news and noise shocks the reason is straightforward if agents face a signal extraction problem and are unable to separate news from noise then the econometrician faced with either the same data as the agents or a subset of these data cannot do it either while structural estimation methods cannot recover the actual time series for news and noise shocks either they can recover underlying structural parameters and thus the relative role and dynamic effects of news and noise shocks estimation of both a simple model and then of a more elaborate dsge model suggest that agents indeed solve such a signal extraction problem and that noise shocks play an important role in determining short run dynamics recent efforts to estimate business cycle models in which expectations about the future play an important role include christiano et al 2010 and schmitt grohe and uribe 2012 those papers follow the approach of jaimovich and rebelo 2009 and model news as perfectly anticipated productivity changes that will occur at

an analysis of the transmission mechanism of monetary policy in ireland this paper examines the impact of a monetary policy shock on output prices and the exchange rate for ireland during its participation in the ems the paper draws on recent techniques used in the structural vector autoregression literature results suggest that an exogenous temporary increase in the short term interest rate leads to a decline in output and prices with the latter responding more sluggishly in addition a higher interest rate leads to an immediate appreciation of the domestic exchange rate and a subsequent depreciation of the currency exchange rate or forward bias puzzle which are prevalent in other studies are not found the robustness of these results is checked under a number of alternative identifications schemes

prices rise faster than they fall output prices tend to respond faster to input increases than to decreases this tendency is found in more than two of every three markets examined it is found as frequently in producer goods markets as in consumer goods markets in both kinds of markets the asymmetric response to cost shocks is substantial and durable on average the immediate response to a positive cost shock is at least twice the response to a negative shock and that difference is sustained for at least five to eight months unlike past studies which documented similar asymmetries in selected markets gasoline agricultural products etc this one uses large samples of diverse products 77 consumer and 165 producer goods accordingly the results suggest a gap in an essential part of economic theory as a start on filling this gap the study finds no asymmetry in the resonse of an individual decision maker a supermarket chain to its costs but it finds above average asymmetry where a cost shock is filtered through a fragmented w

promotions and wage growth this article presents evidence that internal mobility defined as a promotion or other position change is an important source of wage growth it accounts for approximately 15 of wage growth over the life cycle for white and black men but less for women the incidence of promotions and other position changes appears tied to the wage level better paid workers are more likely to be promoted the life cycle incidence of internal mobility looks similar to that for conventionally defined job mobility most moves are made early in the career mobility declines both with time in position and with experience

labor earnings mobility and inequality in the united states and germany during the growth years of the 1980s recent years have witnessed increased interest in issues of inequality and mobility in the labor market using data from the panel study of income dynamics and the german socio economic panel we compare the labor earnings mobility of prime age men and women in the united states and germany during the growth years despite major differences in labor market institutions we find very similar patterns in the two countries our formal models of labor earnings dynamics suggest a great deal of persistence in both countries in the united states this may derive from permanent individual specific differences among men while in germany random shocks are found to persist longer for men women in germany and the united states have similar earnings dynamics copyright 1997 by economics department of the university of pennsylvania and the osaka university institute of social and economic research association

income effects on the trade balance this paper investigates the income effects on the trade balance with particular attention to the distinction between permanent and transitory disturbances for the united states japan germany and the united kingdom in all four countries movements in the trade balance have mostly been associated with transitory changes in income the latter also are negatively associated with the trade balance in marked contrast permanent changes in income have little to do with the trade balance these results are examined in light of intertemporal models and real business cycle models copyright 1996 by mit press

a global general equilibrium analysis of biofuel mandates and greenhouse gas emissions in the last decade global biofuel production has grown rapidly as a result of oil price increases and government policies promoting the development of biofuels though reducing greenhouse gas ghg emissions is one of the stated policy goals along with increasing energy security and promoting rural development the ghg implications of biofuels have come under intense scrutiny particular attention has been focused on ghg impacts of the direct and indirect land use change luc associated with feedstock production for the commercially viable first generation biofuels global biofuel production currently represents about 3 of total transportation fuels with the vast majority of production concentrated in the united states brazil and the european union the primary sources are maize feedstock ethanol in the united states sugarcane feedstock ethanol in brazil and oilseed feedstock biodiesel in the european union all three regions have mandatory requirements to increase production or consumptionofbiofuelsoverthenextfivetoseven years as well as other policies in place to promote production the conventional wisdom has been that substituting ethanol for gasoline will reduce ghg emissions modestly with maize feedstock and substantially with sugarcane or second generation cellulosic feedstocks and

bioenergy and global land use change this is the first article that econometrically estimates the global land use change impact of bioenergy applying time series analytical mechanisms to fuel biofuel and agricultural commodity prices and production we estimate the long run relationship between energy prices bioenergy production and the global land use change our results suggest that rising energy prices and bioenergy production significantly contribute to the global land use change both through the direct and indirect land use change impact globally the total agricultural area yearly increases by 35 578 1 thousand ha due to increasing oil price and by 12 125 1 thousand ha due to increasing biofuel production which corresponds to 0 73 and 0 25 of the total worldwide agricultural area respectively soya land use change and wheat land use change have the highest elasticities with respect to both oil price and biofuel production in contrast nonbiomass crops grassland and rice have negative land use change elasticities region spe

a theory of wage dynamics a dynamic equilibrium model of long term implicit labour contracts under incomplete but symmetric information is developed workers are assumed to be risk averse and of unknown ability or productivity risk neutral firms learn as do workers about each worker s productivity by observing the worker s output over time it is shown that equilibrium contracts provide for wages which never decline with age and increase only when the worker s market value increases above his current wage in addition to characterizing the equilibrium wage contract we also derive some of its implications for the behaviour of aggregate wages across various groups of workers these implications explain some findings in the recent empirical literature on ageearnings profiles in particular our model can explain why earnings may be positively related to experience even after controlling for productivity as some empirical studies have indicated

stock price effects of permanent and transitory shocks this paper exploits the long run equilibrium relationship between stock prices and dividends implied by the present value model to structurally identify a dynamic model that governs the behavior of stock prices the innovations to the data are dichotomized into those that leave a permanent imprint on both series and those that have only transitory effects unlike previous studies however we do not impose arbitrary identifying restrictions to decompose the joint process restrictions that may not be consistent the data jel c12 c32 e24

credit market frictions and their direct effects on u s manufacturing fluctuations abstract in this paper we explore how informational frictions in credit markets directly affect u s manufacturing fluctuations within the context of a dynamic industry model we propose a strategy for identifying intermediation costs related to informational asymmetries between lenders and borrowers the analysis suggests that these costs have been steadily falling over the post war period we also present evidence that changes in the cost of intermediation should directly affect output as opposed to just propagating the effects of other shocks in particular we find that shocks to the cost of intermediation account for a larger share of manufacturing output fluctuations at long horizons than at short horizons

what caused the early millennium slowdown evidence based on vector autoregressions this paper uses a simple var for the usa and euro area to analyse the underlying shocks of the early millennium slowdown i e supply demand monetary policy and oil price shocks the results of two identification strategies are compared one is based on traditional zero restrictions and as an alternative an identification scheme based on more recent sign restrictions is proposed the main conclusion is that the recent slowdown is caused by a combination of several shocks negative aggregate supply and aggregate spending shocks the increase of oil prices in 1999 and restrictive monetary policy in 2000 these shocks are more pronounced in the usa than the euro area the results are somewhat different depending on the identification strategy it is illustrated that traditional zero restrictions can have an influence on the estimated impact of certain shocks copyright 2005 john wiley sons ltd

the shocking nature of output fluctuations in some eu countries recent literature on optimum currency areas has emphasized the importance of analysing the nature of the shocks facing the economy when deciding among alternative exchange rate regimes in this paper we use a structural var to model the joint behaviour of real output nominal interest rates real interest rates and real money balances in response to four exogenous disturbances identifying restrictions are used so that these disturbances can be interpreted as supply money supply is and money demand shocks the analysis is performed on five major european countries the principal objective is to investigate both the relative importance of these shocks in explaining the variance of output at different time horizons and the dynamic response of these economies to each type of shock evidence presented in this paper indicates that the five economies under study have faced very different types of economic shocks over the recent past the implication is that these countries are unlikely to meet the criteria f

the provision of incentives in firms i ncentives are the essence of economics despite many wide ranging claims about their supposed importance there has been little empirical assessment of incentive provision for workers the purpose of this paper is to critically overview existing work on the provision of incentives since the interests of workers and their employers are not always aligned a large theoretical literature has emphasized how firms design compensation contracts to induce employees to operate in the firm s interest this literature has reached into many areas of compensation and has pointed to a multitude of different mechanisms that can be used to induce workers to act in the interests of their employers these include piece rates options discretionary bonuses promotions profit sharing efficiency wages deferred compensation and so on my objective here is to evaluate this literature in the light of a growing empirical literature on compensation where possible i will address the literature from two perspectives first an underlying assumption of this literature is that individuals respond to contracts that reward performance accordingly i consider whether agents behave in this way and whether these responses are always in the firm s interest second i address whether firms write contracts with these responses in mind in other words do contracts look like the predictions of the theory incentives are provided to workers

estimating the effects of unions on wage inequality in a panel data model with comparative advantage and nonrandom selection this article considers the estimation of the structure of wages in union and nonunion sectors it proposes an estimator that extends standard panel data techniques to the case in which the return to the permanent component of the error term is differently rewarded in the two sectors the econometric model is used to estimate the effect of unions on both the level and the variance of wages in canada the findings indicate that unions increase the average wage of workers and compress the returns to observable measures of skill and to a time invariant unobservable measure of skill

identifying sources of macroeconomic and exchange rate fluctuations in the uk abstract using quarterly data for the period 1985 1 2011 1 this paper uses a stylised open economy structural var model to identify the types of shocks responsible for macroeconomic fluctuations in the uk economy the stylised model implies a set of short run restrictions that allow for the identification of the shocks the importance of each shock is determined by examining forecast error variance decompositions impulse response functions and implied long run or permanent effects the results presented here imply that two shocks called the technology and is shocks are relatively more important than other shocks monetary shocks do exhibit long run monetary neutrality but clearly monetary policy is not responsible for a meaningful share of output and employment fluctuations during the sample period the estimated var and structural disturbances imply that the model accurately reflects the uk economy there is little evidence of a price puzzle or an exchange rate puzzle evidence against uncovered interest rate parity in response to an unexpected monetary policy tightening

are empirical measures of macroeconomic uncertainty alike there is a plethora of time series measures of uncertainty for inflation and real output growth in empirical studies but little is known whether they are comparable to the uncertainty measure reported by individual forecasters in the survey of professional forecasters are these two measures of uncertainty inherently distinct this paper shows that compared with many uncertainty proxies produced by time series models the use of real time data with fixed sample recursive estimation of an asymmetric bivariate generalized autoregressive conditional heteroskedasticity model yields inflation uncertainty estimates which resemble the survey measure there is however overwhelming evidence that many of the time series measures of growth uncertainty exceed the level of uncertainty obtained from survey measure our results highlight the relative merits of using different methods in modelling macroeconomic uncertainty which are useful for empirical researchers

what do technology shocks tell us about the new keynesian paradigm abstract researchers have used unanticipated changes to monetary policy to identify preference and technology parameters of macroeconomic models this paper uses changes in technology to identify the same set of parameters estimates based on technology shocks differ substantially from those based on monetary policy shocks in the post world war ii united states a positive technology shock reduces inflation and increases hours worked significantly and rapidly in both cases relative to policy shock identification technology shock identification implies i long duration durability in preferences instead of short duration habit ii built in inflation inertia disappears and price flexibility increases in response to technological improvement consumption durability increases hours worked because households temporarily increase labor supply to accumulate durables towards a new higher steady state level limited nominal rigidities allow inflation to fall because firms are able to immediately cut prices when households labor supply increases finally we consider alternative data constructions and econometric specifications we find that i and or ii hold in nearly every case

the internal economics of the firm evidence from personnel data we analyze twenty years of personnel data from one firm the hierarchical structure is quite simple and stable career movements suggest that the employee s rate of learning and the firm s learning about ability are important there are promotion fast tracks exit rates vary little with tenure or salary the firm has personnel policies like those described in the internal labor markets literature although several theoretical preconditions for ilms such as ports of entry and exit are lacking job levels are important to compensation but there is also substantial individual variation in pay within levels our companion paper in this issue explores the wage policy of this firm

monetary policy and exchange rate interactions in a small open economy the transmission mechanisms of monetary policy in a small open economy like norway are analysed through structural vars with special emphasis on the interdependence between monetary policy and exchange rate movements by imposing a long run neutrality restriction on the real exchange rate thereby allowing the interest rate and the exchange rate to react simultaneously to news i find considerable interdependence between monetary policy and the exchange rate in particular following a contractionary monetary policy shock the real exchange rate immediately appreciates after which it gradually depreciates back to the baseline the results are found to be consistent with findings from an event study

macro economic impact of large scale deployment of biomass resources for energy and materials on a national level a combined approach for the netherlands biomass is considered one of the most important options in the transition to a sustainable energy system with reduced greenhouse gas ghg emissions and increased security of enegry supply in order to facilitate this transition with targeted policies and implementation strategies it is of vital importance to understand the economic benefits uncertainties and risks of this transition this article presents a quantification of the economic impacts on value added employment shares and the trade balance as well as required biomass and avoided primary energy and greenhouse gases related to large scale biomass deployment on a country level the netherlands for different future scenarios to 2030 this is done by using the macro economic computable general equilibrium cge model leitap capable of quantifying direct and indirect effects of a bio based economy combined with a spread sheet tool to address underlying technological details although the combined approach has limitations the results of the projections show that substitution of fossil energy carriers by biomass could have positive economic effects as well as reducing ghg emissions and fossil energy requirement key factors to achieve these targets are enhanced technological development and the import of sustainable biomass resources to the netherlands

how well does the is lm model fit postwar u s data postwar u s time series for money interest rates prices and gnp are characterized by a multivariate process driven by four exogenous disturbances those disturbances are identified so that they can be interpreted as the four main sources of fluctuations found in the is lm phillips curve model money supply money demand is and aggregate supply shocks the dynamic properties of the estimated model are analyzed and shown to match most of the stylized predictions of the model the estimated decomposition is also used to measure the relative importance of each shock to interpret some macroeconomic episodes and to study sources of permanent shocks to nominal variables

short rate nonlinearities and regime switches abstract using non parametric estimation methods various authors have shown distinct non linearities in the drift and volatility function of the us short rate which are inconsistent with standard affine term structure models we document how a regime switching model with state dependent transition probabilities between regimes can replicate the patterns found by the non parametric studies to do so we use data from the uk and germany in addition to us data and include term spreads in some of our models we also examine the drift and volatility function of the term spread

stochastic trends and economic fluctuations in a large open economy abstract this study examines the role of stochastic trends in real exchange rates and foreign output in explaining economic fluctuations in the united states while many of the results are consistent with recent closed economy studies the evidence shows that external shocks have significant short run effects on economic fluctuations even in a large country a real appreciation of the dollar leads to permanent decreases in net exports and temporary decreases in output permanent shocks to real exchange rates have surprisingly large effects on output over the course of the normal business cycle

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

uncertainty and labor contract durations this paper provides an empirical investigation into the relationship between ex ante u s labor contract durations and uncertainty over the period 1970 to 1995 we construct measures of inflation uncertainty as well as aggregate nominal and real uncertainty the results not only corroborate previous findings of an inverse relationship between contract durations and inflation uncertainty but also document that this relationship extends to both measures of aggregate uncertainty we also explore the robustness of this relationship to various measures of inflation uncertainty that have appeared in the literature

estimation and control of an optimization based model with sticky prices and wages abstract this paper provides estimates of an optimization based equilibrium model with sticky prices and wages the estimated model is used to analyse the welfare properties of various interest rate rules for conducting monetary policy an important feature of this model is that it involves a tradeoff between the variances of price and wage inflation and the output gap this tradeoff implies that it is desirable for the monetary authority to respond to wage inflation in addition to price inflation output and past interest rates when setting the current interest rate the issue whether wages and prices can be indexed to steady state inflation has important implications both for the characterization of optimal interest rate rules and interest rate volatility in particular optimal policy in the presence of indexation induces implausibly high steady state inflation

an empirical analysis of oil price shocks in the interwar period i introduction post world war ii experience demonstrates that disturbances to aggregate supply are important determinants of aggregate economic performance a casual glance at the post 1970 data strongly suggests a correlation between shocks to the price of oil and recession hamilton 1983 formally demonstrates that this correlation arises from what appears to be a causal link that runs from oil price increases to reduced economic activity the sequence of oil price increases followed by recession characterizes every post world war ii economic downturn in the u s with the exception of 1960 61 other research confirms the critical role of supply shocks in explaining post world war ii macroeconomic performance burbidge and harrison 1984 employ vector autoregressions vars to examine the impact of oil price shocks over the 1962 82 period for several countries they conclude that these shocks played a large role in deepening the recessions of the 1970s with the impact on the 1973 74 recession much greater than that of 1979 80 tatom 1988 estimates the impact of the 1979 80 increase in the relative price of oil and reports that this shock reduced the amount of output that could be produced with available labor and capital by 5 7 percent thoma 1992 re examines the work of litterman and weiss 1985 and finds that the ex ante real interest rate is not exogenous to supply shocks contrary to what is reported in litterman and weiss using annual data over the 1948 82 period loungani 1986 shows that any correlation between an index of the dispersion of unemployment across industries and the aggregate unemployment rate is due to the dispersion index s collinearity with oil price shocks once this collinearity is accounted for the dispersion index has no explanatory power to account for movements in the aggregate unemployment rate while the evidence for the causal link between supply shocks and output appears most dramatic for the post 1970 data hamilton 1983 argues that the entire post war period be treated as a continuous whole the enduring regularity of the oil price shock recession relation in this period leads to a natural question is there any evidence that oil price shocks either positive or negative played any role in the cyclical fluctuations and secular expansion of the 1920s and the great depression figure 1 presents a plot of the relative price of oil defined precisely in section ii for the 1921 1 1938 6 period we observe a number of sharp movements in the relative price of oil that suggest an assessment of the empirical impact of oil price shocks during the interwar period is warranted accordingly we investigate the effects of oil price shocks during the interwar period within the context of a small macroeconomic model 1 the empirical framework is a var model that consists of output the price level the monetary base the m2 money multiplier the commercial paper rate government spending a financial intermediation variable and a measure of oil price shocks these are variables frequently found in small macroeconomic models monthly data for the period 1924 2 1938 6 are used to specify and estimate the model we evaluate the impact of oil price shocks on prices and output through computation of variance decompositions the standard errors reported are generated through monte carlo simulations historical decompositions for the 1929 9 1938 6 period are also computed so we can specifically examine the effects of oil price shocks over the sample period that includes the great depression we chose the var modeling approach because there is little agreement on the appropriate structural model and var estimation places few restrictions on the way in which the system s variables interact in the specification and estimation of the model all variables are treated as jointly determined no a priori assumptions are made about the exogeneity of any of the system s variables at this stage of analysis

the role of comparative advantage and learning in wage dynamics and intrafirm mobility evidence from germany this article measures the importance of job level assignment based on comparative advantage and learning about workers ability in explaining intrafirm wage and mobility dynamics using survey data from the german socio economic panel the results reveal the importance of nonrandom selection of workers into the rungs of the firm s job ladder measured and unmeasured ability play important roles in workers rank assignment with unmeasured ability being more important at higher levels of the hierarchical job structure there is some evidence of learning effects for workers below age 35 generating mobility between upper and executive levels

the causes of spanish unemployment a structural var approach abstract in this paper we review the main causes of spanish unemployment and weight them by estimating a simple macroeconomic model using the structural var methodology by using this methodology we associate different causes of unemployment with shocks of different nature which have long lasting effects due to full hysteresis we claim that such an extreme assumption on state dependency is reasonable at least as a local approximation for the period and the economy at hand our results suggest that the combination of a plausible mixture of different types of shock and extreme persistence in their propagation mechanisms can satisfactorily explain the dismal performance of the spanish labour market during the last two decades

a dynamic analysis of asymmetric shocks in eu manufacturing available empirical evidence regarding the degree of symmetry between european economies in the context of monetary unification is not conclusive this study offers new empirical evidence concerning this issue related to the manufacturing sector instead of using a static approach as most empirical studies do the dynamic evolution of shock symmetry is analysed using a state space model the results show a clear reduction of asymmetries in terms of demand shocks between 1978 and 1996 with an increase in terms of supply shocks at the end of the period

the business cycle effects of christmas abstract why do countries and industries with large seasonal fluctuations also have large business cycles it is well known that seasonal fluctuations account for the bulk of total output fluctuations yet it is unknown whether seasonal fluctuations can trigger business cycles using a procedure that allows for identification of seasonal innovations i found that seasonal shocks explain 50 of the business cycle in aggregate output such findings provide a novel and powerful explanation for the observed strong correlation between seasonal fluctuations and business cycles the implication is that in addition to trying to determine whether it is monetary technology or other types of shocks that cause business cycles we should be looking at what causes seasonality

corporate performance and managerial remuneration an empirical analysis abstract economic theories of efficient compensation predict a positive relationship between executive pay and corporate performance and yet efforts to document this relationship have been largely unsuccessful in this paper we argue that previous cross sectional studies have omitted important variables which seriously bias their results using data that focus on individual executives over time we find that executive compensation is strongly positively related to corporate performance as measured by shareholder return and growth in firm sales the results are robust to the stock market performance measure utilized

a theory of demand shocks this paper presents a model of business cycles driven by shocks to consumer expectations regarding aggregate productivity agents are hit by heterogeneous productivity shocks they observe their own productivity and a noisy public signal regarding aggregate productivity the public signal gives rise to noise shocks which have the features of aggregate demand shocks they increase output employment and inflation in the short run and have no effects in the long run numerical examples suggest that the model can generate sizable equilibrium dsge models of the business cycle include a large number of shocks to technol ogy monetary policy preferences etc but typically do not include expectational shocks as independent drivers of short run fluctuations 1 this paper explores the idea of expectation driven cycles looking at a model where technology determines equilibrium output in the long run and consumers receive noisy signals about technology in the short run the presence of noisy signals produces expectational errors this paper studies the role of these expectational errors in gener ating volatility at business cycle frequencies the model is based on two ingredients first consumers take time to recognize permanent changes in aggregate fundamentals although they may have good information on the current state of the individual firm or sector where they operate they have only limited information regarding the long run determinants of aggregate activity second consumers have access to public information that is relevant to estimate long run productivity this includes news about technological innovations publicly released macroeconomic and sectoral statistics financial market prices and public statements by policy makers however these signals provide only a noisy forecast of the long run effects of technological innovations this opens the door to noise shocks which induce consumers to temporarily overestimate or underestimate the productive capacity of the economy

should workers care about firm size the authors analyze how firms of different sizes reward measured skills and unmeasured ability the empirical methodology based on nonlinear instrumental variable estimation permits direct estimation of the returns to unmeasured ability by firm size an analysis of panel data from the canadian survey of labour and income dynamics for two periods 1993 1998 and 1996 2001 reveals statistically significant differences between firms of different sizes in particular returns to unmeasured ability are higher in medium sized firms than in either small firms or large firms the authors find that the firm size wage gap and the differential in returns to unmeasured ability between small and medium sized firms is mainly explained by ability sorting the fact that larger firms reward ability less than medium sized firms is consistent with an explanation based on monitoring costs when firms become too large monitoring costs may prevent them from rewarding ability directly through wages

alternative identifying restrictions in a model of uk real output and prices this paper presents some simulation results for a small structural vector autoregression model of the interaction between real output and prices for the uk economy the model is estimated using quarterly data over the period 1966 2 to 1995 4 the effects of alternative identifying restrictions on the simulation properties of the model are considered and it is shown that the restriction of long run neutrality of real output with respect to demand shocks has a major impact even if long run neutrality is not imposed the results still indicate that most of the variance of real output over long forecasting horizons can be attributed to supply side disturbances the model is used to analyse the role of demand and supply disturbances in explaining the three major recessions of the period and it is shown that each of these exhibits unique characteristics

what moves oecd real interest rates this paper conducts a structural time series analysis of ex ante real interest rates of the five major oecd economies the relationships of rates to permanent and temporary real and nominal shocks appear to be qualitatively consistent with predictions of stochastic general equilibrium business cycle models u s real and nominal shocks are found to be the most important causes of persistence in rates but only nominal shocks cause dynamic movements that are coherent across all countries the rise in real interest rates in the early 1980s was mainly due to nominal shocks real shocks played little or no role

testing the implications of long run neutrality for monetary business cycle models this paper compares sample fluctuations of the us business cycle with those predicted by a class of equilibrium monetary business cycle models the predictions of the models are generated using the longrun neutrality restrictions implicit in the models by imposing these restrictions on sample data tests of the ability of the models to replicate the dynamics of the us business cycle are constructed although the predictions of the models for real side variables are rejected there is evidence that the nominal side predictions of the models are not rejected

nominal inertia and shock persistence in uk business cycles a structural var methodology is used for uk data to identify and map out the effects of innovations in the money supply employment output wages and prices moreover bands of two standard errors are computed for the impulse response functions so that comment may be made on the significance of the dynamic responses of the variables to the simulated shocks this allows conclusions to be drawn on the persistence of shocks results suggest that output variation is largely determined by aggregate demand shocks over the business cycle frequency importantly evidence is also found of rigidities in the form of price inertia and nominal wage stickiness

enriching a theory of wage and promotion dynamics inside firms in previous work we showed that a model that integrates job assignment human capital acquisition and learning can explain several empirical findings concerning wage and promotion dynamics inside firms in this article we extend that model in two ways first we incorporate schooling and derive further testable implications that we then compare with the available empirical evidence second and more important we show that introducing task specific human capital allows us to produce cohort effects we further argue that task specific human capital is a realistic concept and may have many important implications we also discuss limitations of our extended approach

a long run structural macroeconometric model of the uk a new modelling strategy that provides a practical approach to incorporating long run structural relationships suggested by economic theory in an otherwise unrestricted var model is applied to construct a small quarterly macroeconometric model of the uk estimated over 1965q1 1999q4 in nine variables domestic and foreign outputs prices and interest rates oil prices the nominal effective exchange rate and real money balances the aim is to develop a model with a transparent and theoretically coherent foundation tests of restrictions on the long run relations of the model are presented the dynamic properties of the model are discussed and monetary policy shocks identified

sources and propagation of international output cycles common shocks or transmission abstract this paper studies the generation and transmission of international cycles in a multi country model with production and consumption interdependencies two sources of disturbance are considered and three channels of propagation are compared technology disturbances which are mildly correlated across countries are more successful than government expenditure disturbances in reproducing actual data the presence of a common component to the shocks and of production interdependencies appear to be crucial in quantitatively matching the properties of the data

working long hours and early career outcomes in the high end labor market this study establishes empirically a positive but nonlinear relationship between weekly hours and hourly wage growth for workers who put in over 47 hours per week 5 extra hours are associated with a 1 increase in annual wage growth this correlation is not present when hours are lower the relationship is especially strong for young professionals data on promotions provide evidence in support of a job ladder model that combines higher skill sensitivity of output in higher level jobs with heterogeneous preferences for leisure the results can be used to account for part of the gender wage gap

inflation output and markup dynamics with forward looking wage and price setters abstract medium scale new keynesian models are sometimes criticized for their use of backward looking wage and price setting mechanisms and for assuming several types of disturbances including some that would be difficult to interpret economically we propose a dsge model with purely forward looking wage and price setters and parsimoniously chosen disturbances our model emphasizes an interplay between production firms networking and working capital firms can use working capital to finance all or a fraction of their outlays on production factors and use the output of other firms as an input in a what is often called a roundabout production structure our model generates a response of inflation which is mute on impact of a monetary policy shock but highly persistent and very hump shaped afterwards it also yields a large contract multiplier for output two times larger than the one implied by a model relying on indexation only we also show that the response of the price markup can be positive on impact of an expansionary monetary policy shock which differs from the standard countercyclical markup channel emphasized in conventional new keynesian models in contrast to models relying on indexation to past inflation our model produces non inertial responses of inflation to productivity and investment shocks a finding which is broadly consistent with the existing var evidence