definition consistent measurement of exchange market pressure currencies can be under severe pressure but in a managed exchange rate regime that is not fully visible via the change in the exchange rate the literature has proposed a way to measure such exchange market pressure emp indirectly by adding interest rate changes and forex interventions to the exchange rate change we demonstrate that this measure is not consistent with the definition of emp and develop a new measure that is consistent this is first derived within the commonly used monetary exchange rate model then we generalize the analysis by avoiding the use of an exchange rate model we find that the interest rate should not be taken in the first difference form used so far but rather in level form and relative to the interest rate chosen if the country had no exchange rate objective applications on the european monetary system and east asian crises confirm that this improvement is highly relevant in practice

rising residential rents in chinese mega cities the role of monetary policy although there have been a large number of studies carried out on fluctuations in housing prices little is known about what causes changes in residential rents which are inextricably intertwined with urban living standards this is especially noteworthy in chinese cities which are now being challenged by the housing market frenzies shift share analysis is proposed to evaluate all possible triggers of residential rent inflation in three cities during the 2001 2013 period which covers two distinct monetary policy regimes in china it is found that the recent rise in residential rent comes as a result of aggregate inflation associated with an expansionary monetary policy since the 2008 global financial crisis and an all encompassing and stable policy stance should therefore be adopted

deviations from rules based policy and their effects abstract rules based monetary policy evaluation has long been central to macroeconomics using the original taylor rule a modified taylor rule with a higher output gap coefficient and an estimated taylor rule we define rules based and discretionary eras by smaller and larger policy rule deviations the absolute value of the difference between the actual federal funds rate and the federal funds rate prescribed by the three rules we use tests for multiple structural changes to identify the eras so that knowledge of subsequent economic outcomes cannot influence the choice of the dates with the original taylor rule monetary policy in the u s is characterized by a rules based era until 1974 a discretionary era from 1974 to 1985 a rules based era from 1985 to 2000 and a discretionary era from 2001 to 2013 with the modified taylor rule the rules based era extends further into the 1970s and there is an additional rules based period starting in 2006 we calculate various loss functions and find that economic performance is uniformly better during rules based eras than during discretionary eras and that the original taylor rule provides the largest loss during discretionary periods relative to loss during rules based periods

rank order contracts for a principal with many agents for a principal with many agents rank order contracts remain incentive compatible even when information about agents performance is known only to the principal because the total payment from the principal to all agents taken together is independent of the outcome that occurs under wider conditions than those considered previously in the literature there is shown to exist a rank order contract equivalent exactly or approximately to any nonlinear piece rate contract under those conditions therefore results that depend on the unenforceability of piece rates under such asymmetric information disappear if rank order contracts can be used in principal agent models compensation paid to agents is based on their outputs because their inputs are not public information in this context information is public if it is verifiable in court so that a contract contingent on it is legally enforceable rank order contracts also called tournaments and contests make each agent s compensation a function solely of the ranking of his output relative to the outputs of other agents in contrast individual piece rate contracts make each agent s compensation a function only of his own output lazear and rosen 1981 green and stokey 1983 and nalebuff and stiglitz 1983 all have results comparing the two when agents actions are not observed by the principal but only for the case in which the principal is risk neutral and the utility function of agents additively separable in income and action the main purpose of the present paper is to show that for the case of a continuum of agents these two kinds of contract are in fact formally equivalent or in some cases approximately equivalent under somewhat more general conditions than those considered so far in the

predicting early data revisions to u s gdp and the effects of releases on equity markets the effects of data uncertainty on real time decision making can be reduced by predicting data revisions to u s gdp growth we show that survey forecasts efficiently predict the revision implicit in the second estimate of gdp growth but that forecasting models incorporating monthly economic indicators and daily equity returns provide superior forecasts of the data revision implied by the release of the third estimate we use forecasting models to measure the impact of surprises in gdp announcements on equity markets and to analyze the effects of anticipated future revisions on announcement day returns we show that the publication of better than expected third release gdp figures provides a boost to equity markets and if future upward revisions are expected the effects are enhanced during recessions

estimation of current quarter gross national product by pooling preliminary labor market data two methods of using labor market data as indicators of contemporaneous gross national product gnp are developed the establishment survey data are used by inverting a partial adjustment equation for hours a second gnp forecast can be extracted from the household survey by using okun s law using preliminary rather than final data adds about 2 to 4 percentage point to the expected value of the root mean squared errors and changes the weights that the pooling procedure assigns to the two forecasts the use of preliminary rather than final data results in a procedure that assigns more importance to the okun s law forecast

oil price shocks and the macroeconomy this paper examines the impact of oil price shocks and attempts to explain why the rise in oil prices up to 2008 had little impact on the world economy it makes three main arguments first that oil prices have never been as important as is popularly thought second that the most important route through which oil prices affect output is monetary policy when oil prices pass through to core inflation monetary authorities raise interest rates slowing growth based on the second argument the third argument is that high oil prices have not reduced growth in recent years because they no longer pass through to core inflation so the monetary tightening previously seen in response to high oil prices is absent it also argues that oil prices had little impact on the global recession of 20089

the eurosystem the u s federal reserve and the bank of japan similarities and differences the paper provides a systematic comparison of the eurosystem the u s federal reserve and the bank of japan these monetary authorities exhibit somewhat different status and tasks which reflect different historical conditions and national characteristics however widespread changes in central banking practices in the direction of greater independence and increased transparency as well as changes in the economic and financial environment over the past 15 20 years have contributed to reduce the differences among these three world s principal monetary authorities a comparison based on simple over the counter policy reaction functions shows no striking differences in terms of monetary policy implementation

efficiency wage models of unemployment one view h lorne carmichael persistent wage rigidity and involuntary unemployment appear to be recurrent problems in most economies what could be preventing the wage adjustment necessary to clear the labor market many recent papers claim to have found the answer in efficiency wage models this paper surveys this literature and attempts to evaluate its accomplishments it concludes that the efficiency wage models fail to explain wage rigidity or persistent involuntary unemployment persistent involuntary unemployment of workers is a recurrent problem in labor markets all over the world unemployed workers seem unable to find work even though they are willing to accept lower wages than those being paid employed workers with similar skills what could be preventing wages from adjusting to clear these markets many recent papers known collectively as the efficiency wage literature now claim to have the answer this paper will survey the efficiency wage literature and critically evaluate some of its accomplishments efficiency wage models have already been examined by yellen 1984 katz 1986 and stiglitz 1987 and have received generally favorable reviews this paper is more critical its overall conclusion is that efficiency wage models provide some useful insights into the workings of the labor market but they do not provide a satisfactory account of wage rigidity or involuntary unemployment there are at least five separate versions of the efficiency wage model they share a common structure however and this is outlined in the first section of the paper this section also attempts to relate efficiency wage models to other recent models of unemployment section ii examines and criticizes the different approaches in detail section iii evaluates the achievements of this approach and suggests some directions for future work i a general efficiency wage model efficiency wage models as the name suggests are first of all models of wages they generate unemployment by showing that firms will sometimes want to set wages at non market clearing levels it is useful to begin therefore by reviewing how wages and employment are determined in some related models in a perfectly competitive labor market the wage for each type of labor is adjusted constantly to maintain equality of supply and demand overall employment fluctuates in response to demand changes as workers move up and down their labor supply curves unemployment is voluntary in that anyone who is not working prefers that state to employment at the going wage for people of his skills as well the value of a worker s marginal product is equal to the marginal value of his leisure so there are no unexploited wage bargains between unemployed workers and firms this model is successful in predicting the long term response of wages to shifts in demand and supply but it is clear that in the short run its depiction of voluntary unemployment and flexible wages is unrealistic a natural way to generate more realism is to assume that wages are inflexible in the short run in this case a reduction in demand away from a long run equilibrium will lead to rationing of jobs by employers as they attempt to stay on their labor demand curves the unemployment here is involuntary in that the unemployed would prefer to be working at the going wage and is inefficient in that there are lost gains from trade between these workers and firms the weakness of this model is that it is silent about the mechanism that keeps wages rigid unemployed workers who offer to work for less than the fixed wage ought to find work the early implicit contract models of azariadis 1975 baily 1974 and gordon 1974 provide one explanation for wage rigidity these models introduced the idea that wages can do more than just clear the market for labor wages in an implicit contract model are used to shift the risk generated by uncertain output market conditions from risk averse workers to the risk neutral firm

improving real time estimates of output and inflation gaps with multiple vintage models real time estimates of output gaps and inflation gaps differ from the values that are obtained using data available long after the event part of the problem is that the data on which the real time estimates are based is subsequently revised we show that vector autoregressive models of data vintages provide forecasts of post revision values of future observations and of already released observations capable of improving estimates of output and inflation gaps in real time our findings indicate that annual revisions to output and inflation data are in part predictable based on their past vintages this article has online supplementary materials

reconciling the wage curve and the phillips curve the wage curve is the negative relationship that links wage levels to the unemployment rate it fits accurately with modern non competitive labour market models but goes against a phillips curve modelling because the latter ties wage growth to the unemployment rate in this article we present a comprehensive review of these non competitive models highlighting recent contributions that try to eliminate the possible gap that exists between the concepts of the wage curve on the one hand and the phillips curve on the other copyright blackwell publishers ltd 2005

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

monetary policy trend inflation and the great moderation an alternative interpretation with positive trend inflation the taylor principle does not guarantee a determinate equilibrium we provide new theoretical results on determinacy in new keynesian models with positive trend inflation and new empirical findings on the federal reserve s reaction function before and after the volcker disinflation to find that i while the fed likely satisfied the taylor principle before volcker the us economy was still subject to self fulfilling fluctuations in the 1970s ii the us economy switched to determinacy during the volcker disinflation and iii the switch reflected changes in the fed s response to macroeconomic variables and the decline in trend inflation jel e12 e23 e31 e32 e52

evaluating alternative monetary policy rules abstract this paper examines monetary policy from an optimal control perspective five loss functions are minimized for each of five models and the results are compared the basic true loss function targets inflation and unemployment the other loss functions target respectively inflation alone unemployment alone nominal growth alone and real growth alone the five models are two small structural models two var models and a large structural model a numerical procedure is presented that can handle a variety of loss functions and models

self enforcing contracts shirking and life cycle incentives he labor market is a rich and complicated place when a worker takes a job he expects to earn a wage but will also care about rates of wage growth fringe benefits levels of risk retirement practices pensions promotion and layoff rules seniority rights and grievance procedures in return the worker must give up some time but he is also asked to upgrade his skills train other workers provide effort and ideas and defer to authority in questions of how his time is spent great changes are occurring in the way labor market institutions such as these are modelled central to the new approach is the concept of a self enforcing implicit contract this is the latest in a series of variations on the ideas of azariadis 1975 baily 1974 and gordon 1974 and is one of the more exciting new developments in the theory of labor markets this essay will outline this approach and evaluate some of its accomplishments the ideas will be presented in the context of an incentive model that is of some independent interest the model was introduced by becker and stigler 1974 and was extended by lazear 1979 to account for wage growth and mandatory retirement in these papers the workers retire at a fixed age lending the name life cycle incentives to the approach more recently shapiro and stiglitz 1984 have used a version without a fixed retirement date to account for unemployment this version is often called the shirking model these models have generated some controversy but much of it can be resolved when the models are presented in the framework of self enforcing contracts in fact this simple incentive model can do even more it can provide a rationale for competitive hierarchies where firms place their workers in competition with

the nairu and wages in local labor markets unemployment in the united states has been below its presumed nairu nonaccelerating inflation rate of unemployment of 6 percent for more than four years the doctrine or dogma of the nairu led to the expectation that an unemployment rate below the nairu would make accelerating inflation inevitable but by all measures inflation has if anything declined and shows no signs of increasing the nairu doctrine has had a major role in macroeconomic theory and monetary policy for several decades for example the seven hikes in interest rates by the fed in 1994 1995 seem to have been motivated not by concerns about existing inflation cpi u inflation was steady and below 3 percent but by fears that an unemployment rate falling toward the 6 percent level and then below 6 percent in september 1994 would foster future inflation theoretical and statistical criticisms of the nairu have been growing see e g robert solow 1986 james tobin 1993 eisner 1994 rod cross 1995 essays by cross frank hahn and tobin ray fair 1996 olivier blanchard and lawrence katz 1997

stop go monetary policy we propose and estimate several discrete choice models of monetary policy decision making that feature time varying inertia the models permit us to account for three stylized facts characterizing monetary policymaking in the united states 1 target interest rates are gradually adjusted in small discrete movements 2 there are some long stretches of time in which rates are repeatedly moved and 3 there are other long stretches in which the policy rate does not change our models are used to account for the fed s failure to adopt promptly an easier policy stance during the recession of 2001 they are also used to explain delay in tightening the policy stance during the 2003 2006 period that featured a bubble in house prices and was followed by a financial crisis in 2008

price flexibility and output stability an old keynesian view in this symposium i shall play the role in which i was cast the unreconstructed old keynesian considering the alternatives i do not mind being billed as a keynesian an old keynesian at that but old keynesians come in several varieties and i speak for no one but myself nor do i defend the literal text of the general theory several generations of economists have criticized amended and elaborated that seminal work i shall argue for the validity of the major propositions that distinguish keynesian macroeconomics from old or new classical macroeconomics

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

inflation forecast targeting implementing and monitoring inflation targets abstract inflation targeting is shown to imply inflation forecast targeting the central bank s inflation forecast becomes an explicit intermediate target inflation forecast targeting simplifies both implementation and monitoring of monetary policy the weight on output stabilization determines how quickly the inflation forecast is adjusted towards the inflation target money growth or exchange rate targeting is generally inferior than inflation targeting and leads to higher inflation variability commitment to target rules may be better than commitment to instrument rules

are preliminary announcements of the money stock rational forecasts abstract we develop a theoretical framework of analyzing preliminary announcements of economic data and then apply this framework to the money stock we find that preliminary announcements of the money stock are best characterized as measured with classical errors in variables that is the revision is not correlated with the true value of the series the revision is however forecastable using information available at the time of the preliminary announcement our ability to forecast the revision implies that preliminary announcements are not rational estimates of the true money stock

monetary policy rules based on real time data this paper examines the magnitude of informational problems associated with the implementation and interpretation of simple monetary policy rules using taylor s rule as an example i demonstrate that real time policy recommendations differ considerably from those obtained with ex post revised data further estimated policy reaction functions based on ex post revised data provide misleading descriptions of historical policy and obscure the behavior suggested by information available to the federal reserve in real time these results indicate that reliance on the information actually available to policy makers in real time is essential for the analysis of monetary policy rules

the phillips curve regime switching and the nairu abstract this paper explores the impact of nonlinearities in the phillips curve and its representation by means of a regime switching model on the meaning and the usefulness of the nairu by implementing a regime switching model that can endogenously generate fluctuations in inflation and in the rate of unemployment we conclude that the nairu is not necessarily a single value is not necessarily reachable and is very difficult to measure the model yields a neutral rate which is more an interval of values than a precise number furthermore by postulating dynamic interdependence between real and monetary aspects the model weakens the theoretical basis of the nairu concept itself

firm specific human capital as an employer discipline device the inability of employers to monitor perfectly the level of effort of their employees is a potentially serious impediment to labor market efficacy indeed a number of recent studies have concluded that this may lead to involuntary unemployment shapiro and stiglitz 1984 sparks 1986 an inefficient sectoral allocation of workers oi 1990 strand 1986 and discrimination against productively identical workers bulow and summers 1986 this paper shows that the lock in effect of firm specific human capital can help alleviate problems of worker moral hazard and thereby promote labor market performance i introduction as the surveys of akerlof yellen 1986 ch 1 carmichael 1990 lang and kahn 1990 and weiss 1990 amply illustrate the last decade witnessed the emergence of a large body of literature which falls under the general rubric of efficiency wage models of the labor market the hallmark of this approach is that some essential aspect of worker performance depends upon the wage paid by the firm much recent work bulow summers 1986 oi 1990 shapiro and stiglitz 1984 sparks 1986 and strand 1986 has considered the case in which due to monitoring difficulties worker effort depends positively upon the wage the popularity of the approach undoubtedly stems from its ability to apparently explain many stylized features of labor market behavior in an attractively simple and straightforward manner in the papers cited above shapiro and stiglitz 1984 and sparks 1987 show that labor market equilibrium can be characterized by involuntary unemployment bulow and summers 1986 demonstrate that inter alia efficiency wage models are consistent with equilibrium discrimination against productively identical agents and finally oi 1990 and strand 1986 show that efficiency wage payments can generate an inefficient sectoral allocation of workers yet recent research now suggests that the results obtained from this class of model are highly sensitive to the specific assumptions made at the outset about the completeness of contractual arrangements indeed as carmichael 1985 astutely observed if contracts can include bond payments even if financed by borrowing from imperfect capital markets the standard imperfect monitoring variant of the efficiency wage hypothesis fails to predict the emergence of equilibrium involuntary unemployment i e all workers receive their reservation utility however proponents of efficiency wage models have responded to this criticism by arguing that workers would be unwilling to post large bonds with firms due to a problem of employer moral hazard specifically workers recognize that firms may hire them in order to steal their bond payment ex post once this limitation on admissible bond payments is recognized it might then be tempting to conclude that the main results of the efficiency wage literature will re emerge in this paper i consider this issue in an environment which also allows for investment in firm specific human capital the basic structure is similar to hashimoto 1981 following macleod and malcomson 1987 1989 i assume that 1 worker performance measures are sufficiently nebulous to preclude verification by third parties and 2 as in carmichael 1983 the courts are unable to ascertain whether in the event of separation a worker quit or was fired this informational structure generates a potentially serious joint worker employer moral hazard problem workers may shirk and employers may simply hire labor in order to collect any bond payments or exit fees stipulated in the contract as emphasized by both carmichael 1989 1990 and macleod and malcomson 1987 1989 the solution to this contracting problem requires that both parties receive a non negative return from the continuation of the match relative to what can be obtained from its dissolution

optimal simple and implementable monetary and fiscal rules welfare maximizing monetary and fiscal policy rules are studied in a model with sticky prices money and distortionary taxation the ramsey optimal policy is used as a point of comparison the main findings are the size of the inflation coefficient in the interest rate rule plays a minor role for welfare it matters only insofar as it affects the determinacy of equilibrium optimal monetary policy features a muted response to output interest rate rules that feature a positive response to output can lead to significant welfare losses the welfare gains from interest rate smoothing are negligible optimal fiscal policy is passive the optimal monetary and fiscal rule combination attains virtually the same level of welfare as the ramsey optimal policy

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

involuntary unemployment in dynamic contract equilibria in this paper the set of bilateral wage contracts in a dynamic model with observable effort is characterized our first result demonstrates that bond payments and severance pay do not increase the size of the set of incentive compatible contracts second we show that unobservable effort can lead to voluntary unemployment this abstract was borrowed from another version of this item

unemployment and the efficiency wage hypothesis there has been much recent discussion of the reasons why prices in certain markets and in particular in labour markets may not adjust to eliminate excess supply the absence of speedy adjustment of prices is an essential feature of the recent models of disequilibrium macroeconomics but for the most part no explanation for this absence is provided from within those models one explanation that has been around in the literature for some time and has been receiving increasing attention recently is the efficiency wage hypothesis initially applied to developing economies see leibenstein i957 it has more recently been adapted to developed economies by weiss i 980 and used in the context of a keynesian macroeconomic model by hart i 980 similar concepts have been applied to the credit market by stiglitz and weiss i98i the purpose of the present paper is to explore further the conditions under which the notion of an efficiency wage is applicable and can provide an explanation of involuntary unemployment the essential feature of the efficiency wage hypothesis is that the productivity of a firm s employees increases as their wage is increased at least over an economically relevant part of its range if the wage paid by the firm is denoted by w the number of employees by l and the productivity of each employee by p w where p w o then the effective labour force of the firm e can be represented by

work incentives hierarchy and internal labor markets this paper argues that contracts with payment based on a ranking of employee performance can provide performance incentives even under asymmetric information that prevents payment based on individual performance only being enforceable such contracts also fit with five features of labor markets that have aroused considerable interest 1 hierarchical wage structures 2 internal promotion 3 wage rates that rise with seniority and experience more than productivity 4 the variance of earnings increasing with experience and 5 wage rates attached to jobs rather than individuals with differentials set by administrative procedures rather than by reference to external market wages

taylor rules with real time data a tale of two countries and one exchange rate abstract using real time data that reflects information available to monetary authorities at the time they are formulating policy we find that estimated taylor rules based on revised and real time data differ more for germany than for the u s taylor rules using real time data suggest differences between u s and german monetary policies and taylor rules for the u s using inflation forecasts are nearly identical to those using lagged inflation rates evidence of out of sample predictability for the dollar mark nominal exchange rate with forecasts based on taylor rule fundamentals is only found with real time data and does not increase if inflation forecasts are used

do real balance effects invalidate the taylor principle in closed and open economies this paper examines the determinacy implications of forecast based monetary policy rules that set the interest rate in response to expected future inflation in a neo wicksellian model that incorporates real balance effects we show that the presence of such effects in closed economies restricts the ability of the taylor principle to prevent indeterminacy of the rational expectations equilibrium the problem is exacerbated in open economies particularly if the policy rule reacts to consumer price rather than domestic price inflation however determinacy can be restored in both closed and open economies with the addition of monetary policy inertia

time to ditch the nairu the concept of a natural rate of unemployment or nonacceleratinginflation rate of unemployment nairu has ruled macroeconomics for about 25 years yet it is still controversial a wide range of views exists over how the nairu should be estimated a fact that in itself raises questions about the practical usefulness of the concept this essay presents a brief for no confidence in four parts first the theoretical case for the natural rate is not compelling second the empirical evidence for a vertical phillips curve and the associated hypothesis that lowering unemployment past the nairu leads to unacceptable acceleration of inflation is weak and has become much weaker in the past decade third viewed collectively attempts to estimate the location of the nairu have become a professional embarrassment disagreements remain on too many basic issues fourth adherence to the concept as a guide to policy has major costs and negligible benefits conversely the risks of dropping the natural rate hypothesis are minor while the benefits from a sustained pursuit of full employment could be substantial

unemployment getting the questions right in my opinion the form and conception of this conference exemplifies the right instinct for modern macroeconomics there is a fact a big unmistakable unsubtle fact essentially everywhere in the modern industrial capitalist world unemployment rates are much higher than they used to be two or three decades ago why is that if macroeconomics is good for anything it ought to be able to understand and explain that fact we should be able to produce a fairly convincing analytical account of the occurrence and persistence of unusually high unemployment rates you might think that to be a mere commonplace to what other sort of end would anyone organize a conference my experience however is that most high powered academic conferences are stimulated by purely technical developments or less often by ideological or political promotion rather than by the need to deal with an outstanding fact i do not blame anyone for this state of affairs we may not be blessed with many significant observations too big to be quibbled over and technical innovations do need to be thrashed out by experts anyway it is good to be faced by a brute fact that needs explanation it is what macroeconomics ought to be about i compliment the organizers also on a second aspect of the agenda the country by country organization of the papers we can all hope to learn something from cross country comparisons one of the few good ways we have to test analytical ideas is to see whether they can make sense of international differences in outcomes by appealing to international differences in institutional structure and historical environment the right place to start is within each country separately studied by someone who knows the peculiarities of its history and its data you might think that this too ought to be obvious but in fact the usual approach is just the opposite more often than not we fail to take institutional differences seriously one model is supposed to apply everywhere and always each country is just a point on a cross section regression or one among several essentially identical regressions leaving only grumblers to worry about what is exogenous and what is endogenous and whether simple parametrizations do justice to real differences in the way the economic mechanism functions in one place or another i have no way of knowing whether this organized effort will get anywhere in explaining high unemployment but it seems to be set up to give itself the best chance for better or worse probably for the better theoretical and empirical work are closely intertwined in macroeconomics scratch a macro theorist and you find a casual econometrician scratch a macro econometrician and you find a casual theorist usually you do not have to scratch very hard thus the discussion of the issues central to the conference has already hardened into certain characteristic forms there are questions already lying on the table that the individual country papers will be trying to answer i suspect that some

theoretical foundations for sticky wages abstract the paper compares three different types of theoretical explanation of sticky wages they are implicit contracts efficiency wage models and insider outsider models it then reconsiders keynes rationale for sticky wages which focuses on relative wage issues finally the paper considers possible directions for future research

monetary analysis and monetary policy in the euro area 1999 2006 abstract this paper assesses the practical experience of monetary analysis at the ecb from the introduction of the euro in 1999 through 2006 the paper exploits a unique and rich real time data set containing both the vintages of data and the economic models that have been employed in the ecb s monetary analysis during the first eight years of monetary union it embodies both a description of how monetary analysis was conducted over this period and a quantitative evaluation of the indicators of risks to price stability that derived from this analysis a close investigation of this material is used to evaluate the role monetary analysis has played in the evolution of monetary policy in the euro area

monetary fiscal policy interactions under implementable monetary policy rules this paper examines the implications of forward and backward looking monetary policy rules in an environment with monetary fiscal interactions we find that the unique stationary rational expectations equilibrium ree is always non ricardian under simple implementable monetary policy rules

the natural rate of unemployment reflections on 25 years of the hypothesis 1 introduction rod cross part i the theoretical framework 2 the origins and further development of the natural rate of unemployment edmund phelps 3 the natural rate as new classical macroeconomics james tobin 4 theoretical reflections on the natural rate of unemployment frank hahn 5 of coconuts decomposition and a jackass the genealogy of the natural rate huw dixon part ii adjustment ranges of equilibria and hysteresis 6 the economics of adjustment andrew caplin and john leahy 7 hysteresis and memory in the labour market g c archibald 8 models of the range of equilibria ian mcdonald 9 hysteresis revisited a methodological approach bruno amable jerome henry frederic lordon and richard topol 10 is the natural rate hypothesis consistent with hysteresis rod cross part iii empirical tests and macro models 11 the natural rate hypothesis and its testable implications hashem pesaran and ron smith 12 non linear dependence in unemployment output and inflation empirical evidence for the uk david peel and alan speight 13 prices wages and unemployment in the us economy a traditional model and tests of some alternatives albert ando and flint brayton 14 the natural rate in empirical macroeconomic models simon wren lewis part iv political economy 15 is the natural rate of unemployment a useful concept for europe maria demertzis and andrew hughes hallett 16 the natural rate of unemployment a fundamentalist keynesian view meghnad desai 17 politics and the natural rate hypothesis a historical perspective bernard corry

monetary policy and financial stability cross country evidence central banks may face challenges in achieving their price stability goals when financial stability risks are present there is however considerable heterogeneity among central banks with respect to how they manage these potential trade offs

is there a fiscal free lunch in a liquidity trap this paper uses a dsge model to examine the eects of an expansion in government spending in a liquidity trap the spending multiplier can be much larger than in the normal situation if the liquidity trap is very persistent and scal stimulus can be rapidly implemented moreover the budgetary costs may be minimal as the large response of output boosts tax revenues allowing for something close to a scal free lunch however we caution that the multiplier may be much smaller under plausible implementation lags for many types of public spending and or if the liquidity trap lasts less than two years in addition because the marginal impact of scal expansion decreases in the scale of the outlay it is crucial to distinguish between average and marginal multipliers