inflation and uncertainty tests for temporal ordering for the postwar united states increases in the rate of inflation tend to precede increases in the level of inflation uncertainty the finding suggests that higher inflation uncertainty is part of the welfare cost of inflation possible explanations are 1 a high rate of inflation increases uncertainty about future monetary policy and 2 there is uncertainty about the persistence of inflation copyright 1995 by ohio state university press

nowcasting mexico s short term gdp growth in real time a factor model versus professional forecasters we introduce a novel real time database for the mexican economy and propose a small scale mixed frequency dynamic factor model for nowcasting mexico s short term gdp growth in real time we compare our factor based backcasts nowcasts and forecasts with those of the consensus of the survey of professional forecasters during the period from the second quarter of 2008 through the second quarter of 2014 our results suggest that our factor based backcasts nowcasts and forecasts outperform those of the consensus of professional forecasters in real time comparisons despite some structural instability during the 2008 09 crisis and its aftermath in 2010

why has u s inflation become harder to forecast we examine whether the u s rate of price inflation has become harder to forecast and to the extent that it has what changes in the inflation process have made it so the main finding is that the univariate inflation process is well described by an unobserved component trend cycle model with stochastic volatility or equivalently an integrated moving average process with time varying parameters this model explains a variety of recent univariate inflation forecasting puzzles and begins to explain some multivariate inflation forecasting puzzles as well

inflation output growth and nominal and real uncertainty empirical evidence for the g7 abstract we use univariate garch models of inflation and output growth and monthly data for the g7 covering the 1957 2000 period to test for the causal effect of real and nominal macroeconomic uncertainty on inflation and output growth and the effect of inflation on inflation uncertainty our evidence supports a number of important conclusions first inflation is a positive determinant of uncertainty about inflation second output growth uncertainty is a positive determinant of the output growth rate third there is mixed evidence regarding the effect of inflation uncertainty on inflation and output growth hence uncertainty about the inflation rate is not necessarily detrimental to economic growth finally there is not much evidence supporting the hypothesis that output uncertainty raises inflation

the effect of asymmetries on optimal hedge ratios there is widespread evidence that the volatility of stock returns displays an asymmetric response to good and bad news this article considers the impact of asymmetry on time varying hedges for financial futures an asymmetric model that allows forecasts of cash and futures return volatility to respond differently to positive and negative return innovations gives superior in sample hedging performance however the simpler symmetric model is not inferior in a hold out sample a method for evaluating the models in a modern risk management framework is presented highlighting the importance of allowing optimal hedge ratios to be both time varying and asymmetric

real time macroeconomic monitoring real activity inflation and interactions the authors sketch a framework for monitoring macroeconomic activity in real time and push it in new directions in particular they focus not only on real activity which has received most attention to date but also on inflation and its interaction with real activity as for the recent recession the authors find that 1 it likely ended around july 2009 2 its most extreme aspects concern a real activity decline that was unusually long but less unusually deep and an inflation decline that was unusually deep but brief and 3 its real activity and inflation interactions were strongly positive consistent with an adverse demand shock this abstract was borrowed from another version of this item

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

a theory of ambiguity credibility and inflation under discretion and asymmetric information this paper develops a positive theory of credibility ambiguity and inflation under discretion and asymmetric information the monetary policymaker maximizes his own politically motivated objective function that is positively related to economic stimulation through monetary surprises and negatively related to monetary growth the relative importance he assigns to each target shifts stochastically through time his current preference trade off is known to him but not to the public when choosing the state contingent path of money growth for the present and the future the policymaker compares the benefits from current stimulation with the costs associated with higher future inflation expectations current monetary growth conveys information to the public about future money growth because there is persistence in the policymaker s objectives although expectations are rational information is imperfect because monetary control procedures are imprecise as a result the public cannot correctly distinguish persistent changes of emphasis on different policy objectives from transitory monetary control errors the public becomes aware of changes gradually by observing past monetary growth credibility is defined in terms of the speed with which the public recognizes changes in the objectives of the policymaker credibility is lower the noisier monetary control and the more stable the objectives of the policymaker looser monetary control and a higher degree of time preference on the part of the policymaker induce him to produce higher and more variable monetary growth when the policymaker is free to determine the accuracy of monetary control he does not always choose the most effective control available in spite of the fact that monetary surprises always have an expected value of zero the reason is that ambiguous control procedures enable the policymaker to generate positive surprises when he cares more than on average about economic stimulation he leaves the inevitable negative surprises for periods in which he cares more about inflation prevention this result provides an explanation for the fed s preference for ambiguity recently documented by goodfriend 1986 the policymaker is more likely to pick more ambiguous control procedures the more uncertain his objectives and the higher his time preference the paper also provides a theoretical underpinning for the well documented crosscountry positive correlation between the level and the variability of inflation

the effect of taxes on labour in efficiency wage models abstract this paper analyses the effects of labour taxation on wage and employment in a moral hazard efficiency wage model where effort is a continuous variable and workers are risk averse in the model examined ad valorem and specific taxes on labour do not have the same consequences on the real wage both taxes have a negative effect on employment but the imposition of a specific tax causes an increase in the net real wage including firms to raise the quality of their workers these results are compared with those obtained in other versions of the shirking efficiency wage model

the euro and inflation uncertainty in the european monetary union in this paper we investigate empirically the relationship between inflation and inflation uncertainty in twelve emu countries we estimate a time varying parameter model with a garch specification for the conditional volatility of inflation in order to distinguish between short run structural and impulse and steady state uncertainty we then introduce a dummy variable to model the policy regime shift which occurred in 1999 with the introduction of the euro and its effects on the links between inflation and inflation uncertainty we find that steady state inflation has generally remained stable with the important exception of germany where the trend has become positive steady state inflation uncertainty and inflation persistence have both increased and the relationship between inflation and inflation uncertainty has broken down in many countries these findings cast doubt on the optimistic view taken by the ecb concerning its success in controlling inflation and suggest the need for improvements in its analytical framework

the equilibrium effort wage elasticity in efficiency wage models abstract it has been objected that the equilibrium effort wage elasticity of unity in the standard efficiency wage model is quite high and that many of the results in the efficiency wage theory depend critically on the existence of some region of increasing returns of work effort to wages these two objections do not appear in the presence of fixed employment costs which e g implies that the equilibrium effort wage elasticity is less than unity finally some comparative static results are derived

macroeconomic uncertainty and performance in the european union abstract we use a very general bivariate garch m model and monthly data on eu countries covering the 1962 2003 period to test for the impact of real output growth and nominal inflation macroeconomic uncertainty on inflation and output growth our evidence supports a number of important conclusions first in the majority of countries uncertainty regarding the output growth rate is related to the average growth rate and the effect in several countries is negative second in half of the cases there is no significant relationship between inflation uncertainty and output growth performance third inflation and output uncertainty have a mixed effect on inflation nevertheless considerable evidence for the cukierman meltzer hypothesis is obtained our conclusions are based on adopting both a structural and a reduced form bivariate garch model finally we also find statistically significant evidence of regime switching for both inflation and output growth volatility throughout the sample

the fischer black hypothesis some time series evidence we estimate an arch m model to analyze the relationship between the conditional standard deviation of real gross national product gnp and its growth rate for the period 1871 1993 we find that variability significantly increases output growth rates in addition impulse response functions show that the effect of variability on growth rates is dynamic these results provide evidence in favor of black s 1987 business cycle hypothesis

how do export controls affect price transmission and volatility spillovers in the ukrainian wheat and flour markets abstract this study investigates the impact of export controls implemented on ukrainian wheat during two periods of significant commodity price spikes and volatility first we investigate the equilibrium price relationship between wheat and flour prices to identify whether export restrictions dampened the price transmission from the wheat market to the flour market second we estimate an asymmetric vec bekk garch model to characterize the nature of short run price adjustments and volatility spillovers between the ukrainian wheat and flour markets the results indicate that export controls insulated the flour market from price shocks in the wheat market by reducing the transmission elasticity by 25 we also find evidence that suggests export controls lead to increased volatility in the flour market in the periods immediately before and after the export controls however we find no evidence that the export controls increase the time invariant i e the constant part of volatility of wheat or flour prices lastly we do not observe asymmetric spillover effects in the flour market but we do find that the wheat market is more volatile when experiencing positive shocks than negative ones

volatility and a century of energy markets dynamics how similar is the price behavior of oil natural gas and coal are there any interactions among these three fuel prices and their volatilities using the yatchew and dimitropoulos 2016 annual data for the united states over the period from 1870 to 2014 and state of the art econometric methodology we explore for spillovers and interactions among the three energy markets in doing so we use a range of univariate and multivariate volatility models the key contribution to the literature is the estimation of a trivariate bekk model that allows for the interdependence of oil natural gas and coal returns and volatilities using the longest span prices that have ever been studied before

a new coincident index of business cycles based on monthly and quarterly series maximum likelihood factor analysis of time series is possible even when some series are quarterly and others are monthly treating quarterly series as monthly series with missing observations and replacing them with artificial observations independent of the model parameters one can apply the kalman filter to a state space representation of a factor model and evaluate the likelihood function an application to quarterly real gdp and monthly coincident business cycle indicators gives a new coincident index of business cycles the new index is essentially the smoothed estimate of latent monthly real gdp and should improve upon the stock watson index

on inflation and inflation uncertainty in the g7 countries abstract the relationship between inflation and inflation uncertainty is investigated in the g7 countries from 1948 to 1993 garch models are used to generate a measure of inflation uncertainty and then granger methods are employed to test the causality between average inflation and inflation uncertainty in all g7 countries inflation significantly raises inflation uncertainty as predicted by friedman and ball weaker evidence is found that inflation uncertainty granger causes inflation in three countries us uk and germany increased inflation uncertainty lowers inflation while in two countries japan and france increased inflation uncertainty raises inflation

measuring asymmetry and persistence in conditional volatility in real output evidence from three east asian tigers using a multivariate garch approach we search for evidence of conditional volatility in the quarterly real gross domestic product gdp growth rates of three east asian tigers singapore hong kong and taiwan the widely accepted exponential generalized autoregressive conditional heteroscedasticity egarch type model is used to capture the existence of asymmetric volatility and the potential structural break points in the volatility we find evidence of asymmetry and persistence in the volatility of gdp growth rates it is noted that the structural breakpoints of volatility correspond reasonably well to the historical economic and political events in these economies policy implications from our findings are discussed

re examining inflation and inflation uncertainty in developed and emerging countries abstract this paper examines the relationship between inflation and inflation uncertainty for both developed and emerging countries we find new evidence that suggests positive inflationary shocks have stronger impacts on inflation uncertainty for mainly latin american countries

inflation output and uncertainty in the era of inflation targeting a multi economy view on causal linkages abstract this study provides cross country robust evidence on interdependencies among inflation output growth and respective uncertainties for the current era of low inflation policies we attribute the extant empirical disagreement on these relations to the fact that long sampling periods and single economies are typically considered for analysis in this study varx mgarch m models are estimated for 34 developed and emerging economies and the time period of 1990 2010 we study average granger causal effects by aggregating parameter estimates over economies the cross sectional variation of estimates serves as a means to assess the robustness of empirical findings over the entire cross section we find that both inflation and inflation uncertainty significantly reduce output growth economies with low inflation rates are particularly at risk to incur output losses from increasing inflation we also find spillover effects among uncertainty variables where the causal impact if present seems to point from the uncertainty in output to inflation uncertainty

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

two to tangle financial development political instability and economic growth in argentina abstract this paper studies the impact of financial liberalization on economic growth it contributes to this literature by using an innovative econometric methodology and a unique data set of historical series it presents power arch estimates for argentina for the period from 1896 to 2000 the main results show that the long run effect of financial liberalization on economic growth is positive while the short run effect is negative albeit substantially smaller interestingly we find that financial development affects growth only directly that is not through growth volatility

facts and challenges from the great recession for forecasting and macroeconomic modeling this paper provides a survey of business cycle facts updated to take account of recent data emphasis is given to the great recession which was unlike most other postwar recessions in the united states in being driven by deleveraging and financial market factors we document how recessions with financial market origins are different from those driven by supply or monetary policy shocks this helps explain why economic models and predictors that work well at some times do poorly at other times we discuss challenges for forecasters and empirical researchers in light of the updated business cycle facts

the asymmetric effects of uncertainty on inflation and output growth we study the effects of growth volatility and inflation volatility on average rates of output growth and inflation for post war us data our results suggest that increased growth uncertainty is associated with significantly lower average growth while higher inflation uncertainty is significantly negatively correlated with lower output growth and lower average inflation both inflation and growth display evidence of significant asymmetric response to positive and negative shocks of equal magnitude copyright 2004 john wiley sons ltd

the efficiency wage given long run employment and concave labor constraint abstract the purpose of this paper is to analyze determination of wage rate in a setting where health capital of labor accumulates over time our conclusions are 1 efficiency wage in a dynamic framework exceeds the static wage rate and 2 there is a possibility of multiple steady state equilibria and a low level equilibrium we have also made some comparative static exercises with respect to some key parameters

volatility of price indices for heterogenous goods with applications to the fine art market price indices for heterogeneous goods such as real estate or fine art constitute crucial information for institutional or private investors considering alternative investment decisions in times of financial markets turmoil classical meanvariance analysis of alternative investments has been hampered by the lack of a systematic treatment of volatility in these markets in this paper we propose a hedonic regression framework which explicitly defines an underlying stochastic process for the price index allowing to treat the volatility parameter as the object of interest the model can be estimated using maximum likelihood in combination with the kalman filter we derive theoretical properties of the volatility estimator and show that it outperforms the standard estimator we show that extensions to allow for time varying volatility are straightforward using a local likelihood approach in an application to a large data set of international blue chip artists we show that volatility of the art market although generally lower than that of financial markets has risen after the financial crisis of 2008 09 but sharply decreased during the recent debt crisis

productive consumption and population dynamics in an endogenous growth model demographic trends and human development aid in developing economies abstract we find that by endogenizing the population growth rate a growth model under the productive consumption hypothesis is more tractable than models in previous studies and has interesting implications for population dynamics in the zero saving phase multiple saddle point stable steady states may exist and the population growth rate may rise or decline along a transition path in the positive saving phase such a steady state may exist uniquely and the population growth rate may decline with phase switching the population growth rate may follow an inverted u shaped curve human development aid may help an economy escape from an underdevelopment trap

effects of growth volatility on economic performance empirical evidence from turkey this paper examines the relationship between growth and growth volatility for a small open economy with high growth volatility turkey quarterly data for the period from 1987q1 to 2007q3 suggests that growth volatility reduces growth and that this result is robust under different specifications this paper contributes to the literature by focusing on how growth volatility affects a set of variables that are crucial for growth empirical evidence from turkey suggests that higher growth volatility reduces total factor productivity investment and the foreign currency value of local currency depreciation moreover it increases employment though the evidence for this is not statistically significant

efficiency wages and wage dispersion the efficiency wage hypothesis has normally been used to generate an equilibrium level of unemployment the authors use it instead to generate an equilibrium wage distribution this paper starts by generalizing the previous work of r m solow in this area they then use their results on effort wage elasticities to derive a model of wage dispersion the wage rate is shown to be an increasing function of the damage potential of workers that is workers with the highest damage potential receive the highest wage the analysis of the equilibrium of the wage distribution provides interesting qualitative insights into the nature of actual wage differentials copyright 1991 by the london school of economics and political science

measuring and predicting heterogeneous recessions this paper examines the usefulness of a more refined business cycle classification for monthly industrial production ip beyond the usual distinction between expansions and contractions univariate markov switching models show that a three regime model is more appropriate than a model with only two regimes interestingly the third regime captures severe recessions contrasting the conventional view that the additional third regime represents a recovery phase this is confirmed by means of markov switching vector autoregressive models that allow for phase shifts between the cyclical regimes of ip and the conference board s leading economic index lei the timing of the severe recession regime mostly corresponds with periods of substantial financial market distress and severe credit squeezes providing empirical evidence for the financial accelerator theory

a positive theory of inflation and inflation variance a positive theory of inflation and inflation variance empirically inflation and the variance of inflation are positively associated this paper develops a model that provides a potential explanation for this relationship in terms of the incentives facing the policymaker in a discretionary equilibrium the model can also account for an empirical association between inflation and measures of real output instability there is however no direct causal link whatever from the average rate of inflation to either the variance of inflation or that of real output i introduction the debate over the use rules or discretion in monetary policy has been central to macroeconomics for many years e g simons 1963 lucas 1980 buiter 1980 recently kydland and prescott 1977 and barro and gordon 1983a b have identified discretion as the absence of policy commitment in a game between policymakers and the public they argued that discretionary policymaking will lead governments to create excessive inflation a policy of low inflation is not consistent with incentives facing governments and thus will not be believed by the private sector barro and gordon 1983a argue that this positive theory of monetary policy can help to explain many features of the trend rate of inflation in modern economies high and persistent rates of inflation a positive relationship between inflation and unemployment and the observed countercyclical behaviour of monetary authorities among others these models are based on the premise that there are significant costs to a high but fully anticipated rate of inflation another feature of inflation in modern economics however is the well documented fact that inflation and the variability of inflation are positively associated this phenomenon has been widely observed over different countries at different times 1 this has led researchers to question the feasibility of a steady and predictable positive rate of inflation the finding suggests that high rates of inflation may reduce the ability to forecast future inflation rates a high average inflation rate may add an unnecessary degree of uncertainty to individual decision making and lead to a misallocation of resources friedman 1977 suggests that this may cause output instability and possibly raise the average unemployed rate a related paper by logue and sweeney 1981 establishes that there is a positive relationship between inflation and the variability of economic growth for industrial countries given this perspective the welfare costs associated with inflation might be considerably higher than the traditional costs of anticipated inflation this paper extends the barro and gordon 1983a model of discretionary monetary policy to take account of the relationship between inflation and measures of inflation and output variability the extension focussed on is to model an endogenous wage indexing scheme in the labor market in the discretionary equilibrium wage setters not only form rational expectations of the future price level but also choose an optimal degree of wage indexation this extension to the basic model has the following properties of a discretionary equilibrium 1 there is a positive association between the mean rate of inflation and the magnitude of real disturbances in the economy as well as between the mean inflation rate and the degree of output instability in the economy 2 in an economy where real disturbances are relatively important there is a positive association between the mean rate of inflation and the variance of inflation the explanation behind these results is as follows the lower is the degree of wage indexation the greater is the incentive for monetary authorities to cause surprise inflation and hence the higher is the mean rate of inflation in a discretionary equilibrium but the degree of wage indexation is negatively related to the variance of real disturbances in an economy which is subject to both real and nominal disturbances

the de merits of minimum variance hedging application to the crack spread we study the empirical performance of the classical minimum variance hedging strategy comparing several econometric models for estimating hedge ratios of crude oil gasoline and heating oil crack spreads given the great variability and large jumps in both spot and futures prices considerable care is required when processing the relevant data and accounting for the costs of maintaining and re balancing the hedge position we find that the variance reduction produced by all models is statistically and economically indistinguishable from the one for one naive hedge however minimum variance hedging models especially those based on garch generate much greater margin and transaction costs than the naive hedge therefore we encourage hedgers to use a naive hedging strategy on the crack spread bundles now offered by the exchange this strategy is the cheapest and easiest to implement our conclusion contradicts the majority of the existing literature which favours the implementation of garch based hedging strategies

the relationship between inflation and inflation uncertainty in the uk 1885 1998 abstract using a long series of uk inflation data i have provided strong evidence in favour of the hypothesis that inflationary periods are associated with high inflation uncertainty this result supports the friedman ball hypothesis and has important implications for the inflation output relationship provided that more inflation uncertainty leads to lower output

a dynamic efficiency wage model with learning by doing abstract we propose a dynamic efficiency wage model with learning by doing by taking into account the change in the stock of workers knowledge firms set efficiency wages such that the effort wage elasticity is not in general equal to one

the link between volatility and growth evidence from the states we present evidence on the relationship between output volatility and growth using state data no evidence of such a relationship is found once other correlates of growth are incorporated into the analysis this finding contradicts published results using international data some possible explanations for the contradictory results are discussed

output growth and its volatility the gold standard through the great moderation this study examines the relationship between u s output growth and its volatility over the period 1876 i to 2012 ii we adjust the data for outliers and structural breaks we employ generalized autoregressive conditional heteroskedasticity garch and exponential garch egarch specifications normality and homoskedasticity appear only in the garch or egarch model that corrects for the outliers when including the break in the mean equation high volatility persistence remains after also accommodating the breaks in the variance equation the integrated garch effect proves spurious either for the symmetric or the asymmetric model finally our empirical results suggest that the finding of higher output growth volatility stimulating output growth and higher output growth reducing its volatility obtained from the symmetric garch in mean garch m model also proves spurious as a result of the emergence of an asymmetric effect our more appropriately specified asymmetric egarch m model suggests positive volatility in mean and level effects in the long period real gross national product series

does the version of the penn world tables matter an analysis of the relationship between growth and volatility the penn world tables pwt are an important data source for cross country comparisons in economics the pwt have undergone several revisions over time this paper documents how countries output growth rates change across four publicly available versions of the pwt we show that for some countries the magnitude of the differences is significant and or the sign of the growth rates changes across versions using as an example ramey and ramey 1995 who found growth volatility has a significant negative effect on growth we demonstrate that conclusions based on one version of the pwt may not hold under another version les tableaux mondiaux de penn penn world tables ou pwt sont une source importante de donnees comparatives entre pays dans le monde economique les pwt ont subi plusieurs revisions dans le temps ce memoire montre d abord comment les taux de croissance du produit des pays changent selon les quatre versions des pwt disponibles au public on montre que pour certains pays la taille des differences est significative et que meme le signe de ces taux change d une version a l autre utilisant comme exemple ramey et ramey 1995 qui ont montre que la volatilite de la croissance a un effet negatif sur la croissance les auteurs montrent que les conclusions fondees sur une version des pwt peuvent ne pas etre fondees dans une autre version

inflation and inflation uncertainty in argentina 1810 2005 abstract unit root tests results suggest that inflation in argentina for the period 1810 2005 is a stationary series when account is taken of structural breaks that coincide with bouts of hyperinflation a garch 1 1 model of annual inflation suggests a positive short run relation between the mean and variance of inflation supporting friedman s hypothesis that high inflation is associated with more variable inflation

fragility and the effect of international uncertainty shocks abstract when economic systems are fragile even modest shocks for example a shock to international capital movements can have strong negative effects on key macroeconomic fundamentals this paper proposes a large scale bayesian vector autoregression with factor stochastic volatility to investigate the macroeconomic consequences of international uncertainty shocks in g7 countries and shows that uncertainty increases fragility the factor structure enables us to identify an international uncertainty shock by assuming that it is the joint volatility process that determines the dynamics of the variance covariance matrix of the common factors to allow for first and second moment shocks we moreover assume that the uncertainty factor enters the var equation as an additional regressor our findings suggest that an international uncertainty shock has negative effects across all economies and variables under consideration leading to strong declines in output prices exports interest rates and equity prices the precise degree of fragility varies across countries a simple correlation exercise suggests that structural differences may be partially responsible for the observed differences

efficiency wages and the quality of job matching abstract we introduce the quality of job matching in the effort function in order to calculate the efficiency wage we consider two cases in the first one the quality of the match is perfectly observable by the firm and we show that the equilibrium unemployment level is due to both high wages and mismatch in the second case we assume that job matching is a random variable and we show that there are some regions in which the efficiency wage raise generates an effort greater than the initial wage increase and others where the reverse prevails

the turnover costs and the solow condition in an efficiency wage model with intertemporal optimization abstract this paper sets out an intertemporal optimizing model embodying the efficiency wage hypothesis and examines whether the solow condition is valid it is shown that unless the turnover costs are absent and the voluntary quitting rate is independent from wage offer the effort wage elasticity is less than unity our result thus can be regarded as a theoretical solution of the akerlof and yellen criticism on the efficiency wage theory

divisia monetary aggregates and us gdp nowcasting this article nowcasts us quarterly real gdp growth rate with dynamic factor model dfm using divisia monetary aggregate index divisia m1 m2 m3 and exploits information from a large unbalanced

the effect of recessions on the relationship between output variability and growth this paper investigates the relationship between output volatility and growth using post war real gdp data for the united states we expand on recent research by beaudry and koop 1993 documenting the asymmetric effect of recessions on output growth the results presented in this paper suggest that output volatility is highest when the economy is contracting while we find that the economy expands most rapidly following a recession this expansion is offset by the negative impact of output uncertainty

the link between macroeconomic performance and variability in the uk abstract this paper examines the link between inflation output growth and their respective variabilities we employ a bivariate garch model which incorporates mean and level effects to investigate in a unified empirical framework all the possible interactions between the four variables we show that not only does variability affect performance but the latter influences the former as well specifically inflation has a positive impact on both variabilities

nominal uncertainty and inflation the role of european union membership abstract we provide evidence that higher inflation uncertainty leads to higher inflation in the new european union eu member states and candidate countries only prior to eu accession during eu accession and entry inflation uncertainty has no effect on mean inflation

fossil fuel price uncertainty and feedstock edible oil prices evidence from mgarch m and virf analysis abstract this paper focuses on examining the impact of crude oil price volatility on the price changes of major edible oils rapeseed soybean and sunflower which are the main feedstock for the biodiesel industry in the european union for this purpose a four variate version of non diagonal garch in mean model that allows for asymmetry in the variance covariance matrix is used an important conclusion that emerges from this study is that the crude oil price uncertainty appears to be responsible for a significant decline in price returns of major feedstock edible oils considered in this study the volatility impulse response analyses support the conclusion that the conditional variances of both edible and crude oil and covariances between them are generally highly responsive to historical shock however the size of the impacts is mainly commodity specific finally we investigate the causality from crude oil price volatility to edible oil prices and the effects of oil price shocks on edible oil prices by using the granger causality test and generalized impulse response function analysis respectively the empirical results show that there is strong evidence of causality from crude oil price volatility to all edible oil prices under study and generalized impulse response analysis shows that the edible oil markets significantly respond to the shocks in oil prices

introducing the euro sting short term indicator of euro area growth we set out a model to compute short term forecasts of the euro area gdp growth in real time to allow for forecast evaluation we construct a real time dataset that changes for each vintage date and includes the exact information that was available at the time of each forecast with this dataset we show that our simple factor model algorithm which uses an easy to replicate methodology is able to forecast the euro area gdp growth as well as professional forecasters who can combine the best forecasting tools with the possibility of incorporating their own judgement in this context we provide examples showing how data revisions and data availability affect point forecasts and forecast uncertainty copyright 2010 john wiley sons ltd

cross country evidence on the link between volatility and growth this paper presents empirical evidence against the standard dichotomy in macroeconomics that separates growth from the volatility of economic fluctuations in a sample of ninety two countries as well as a sample of oecd countries the authors find that countries with higher volatility have lower growth the addition of standard control variables strengthens the negative relationship the authors also find that government spending induced volatility is negatively associated with growth even after controlling for both time and country fixed effects copyright 1995 by american economic association

modeling asymmetric comovements of asset returns existing time varying covariance models usually impose strong restrictions on how past shocks affect the forecasted covariance matrix in this article we compare the restrictions imposed by the four most popular multivariate garch models and introduce a set of robust conditional moment tests to detect misspecification we demonstrate that the choice of a multivariate volatility model can lead to substantially different conclusions in any application that involves forecasting dynamic covariance matrices like estimating the optimal hedge ratio or deriving the risk minimizing portfolio we therefore introduce a general model which nests these four models and their natural asymmetric extensions the new model is applied to study the dynamic relation between large and small firm returns article published by oxford university press on behalf of the society for financial studies in its journal the review of financial studies