inflation persistence alternative interpretations and policy implications in this paper i consider the policy implications of two alternative structural interpretations of observed inflation persistence which correspond to two alternative specifications of the new keynesian phillips curve nkpc the first specification allows for some degree of intrinsic persistence by way of a lagged inflation term in the nkpc the second is a purely forward looking model in which expectations farther into the future matter and coefficients are time varying in this specification most of the observed inflation persistence is attributed to fluctuations in the underlying inflation trend which are a consequence of monetary policy rather than a structural feature of the economy with a simple quantitative exercise i illustrate the consequences of implementing monetary policy assuming a degree of intrinsic persistence that differs from the true one the results suggest that the costs of implementing a stabilization policy when the policymaker overestimates the degree of intrinsic persistence are potentially higher than the costs of ignoring actual structural persistence the result is more clear cut when the policymaker minimizes a welfare based loss function

the fisher hypothesis and the forecastability and persistence of inflation abstract for the period 1860 to 1939 the simple correlation of the u s commercial paper rate with the contemporaneous inflation rate is 0 17 the corresponding correlation for the period 1950 to 1979 is 0 71 this paper attributes this apparent change in the fisher relation to differences in the stochastic process of inflation rather than a change in any structural relationship between interest rates and expected inflation contrary to recent claims in the literature there is little evidence of inflation non neutrality in data from the pre world war i period

structural breaks in the international dynamics of inflation abstract this paper proposes an iterative procedure to discriminate between structural breaks in the coefficients and the disturbance covariance matrix of a system of equations with recursive proc

erratum to why has u s inflation become harder to forecast the article journal of money credit and banking supplement to vol 39 no 1 february 2007 contains errors in figures 2 4 and tables 4 5 associated with a coding error in our program for estimating the uc sv model we thank ling hu of platinum grove asset management for finding this error and bringing it to our attention the corrected uc sv rows for tables 4 and 5 are given below corrected versions of figures 2 4 and corrected replication files can be found at http www princeton edu mwatson

money velocity and the natural rate of interest abstract m1 velocity is approximately the permanent component of the short term rate this implies that agents in deciding how much wealth to allocate to non interest bearing m1 as opposed to interest bearing assets almost uniquely react to permanent shocks to the opportunity cost essentially ignoring transitory shocks this suggests that money demand models must be modified to allow for such distinct reaction to permanent and transitory variation in the opportunity cost of holding m1 under monetary regimes making inflation stationary permanent fluctuations in m1 velocity uniquely reflect to a close approximation permanent shifts in the natural rate of interest

optimal price level drift under commitment in the canonical new keynesian model in both the canonical and many extended versions of the new keynesian model optimal monetary policy under commitment implies price level stationarity as long as expectations are rational we show that this is no longer the case if the central bank and private agents make decisions before observing current shocks the optimal amount of price level drift in response to unexpected innovations to inflation is quantitatively important this result has important implications for monetary policy including the design of the optimal loss function for the central bank if it cannot commit to its future policies a la fois dans la version canonique du nouveau modele keynesien et de ses versions etendues la politique monetaire optimale quand il y a engagement implique qu il y aura stationnarite du niveau des prix aussi longtemps que les anticipations sont rationnelles on montre que ce n est plus le cas si la banque centrale et les agents prives prennent des decisions avant d observer les chocs courants le montant optimal de la derive du niveau des prix en reponse aux innovations non anticipees dans l inflation est quantitativement important ce resultat a des implications importantes pour la politique monetaire y compris le design d une fonction de perte optimale pour la banque centrale si elle ne peut pas s engager a poursuivre ses politiques dans l avenir

price and wage inflation persistence across countries and monetary regimes abstract we augmented a macro model with intrinsic inflation inertia assuming that prices farer in the past are more likely to be reset we estimated the model for seven industrialized economies to compare their price wage structures and to explore the potential nexus between changes the price wage structure and changes in policy stances we find evidence for duration dependent price adjustments in all the country of the sample although positively sloped after few periods price hazard functions often become flat as in calvo based models instead wage hazard shapes are in line with taylor contracts with the exceptions of france and the united kingdom country comparison shows that price and wage stickiness are correlated regarding monetary policy stances no systematic effect is found observed changes are explained by country specific factors e g market reforms

monetary policy and the relative price of durable goods abstract in a structural vector autoregressive model of the us the response of the relative price of durables to a monetary policy contraction is either flat or mildly positive it significantly falls only if narrowly defined as the ratio between new house and nondurables prices these findings are rationalized via the estimation of two sector new keynesian nk models durables prices are estimated to be as sticky as those of nondurables leading to a flat relative price response to a monetary policy shock conversely house prices are estimated to be almost flexible such results survive several robustness checks and a three sector extension of the nk model these findings have implications for building nk models with durable and nondurable goods and for the conduct of monetary policy

monetary policy indeterminacy and identification failures in the u s results from a robust test we propose a novel identi cation robust test for the null hypothesis that an estimated new keynesian model has a reduced form consistent with the unique stable solution against the alternative of sunspot driven multiple equilibria our strategy is designed to handle identi cation failures as well as the misspeci cation of the relevant propagation mechanisms we invert a likelihood ratio test for the cross equation restrictions cer that the newkeynesian system places on its reduced form solution under determinacy if the cer are not rejected sunspot driven expectations can be ruled out from the model equilibrium and we accept the structural model otherwise we move to a second step and invert an anderson and rubin type test for the orthogonality restrictions or implied by the system of euler equations the hypothesis of indeterminacy is accepted if the or are not rejected we investigate the nite sample performance of the suggested two steps testing strategy by some monte carlo experiments we apply our robust test to a new keynesian ad as model estimated with actual u s post wwii data in spite of some evidence of weak identi cation

inference in structural vector autoregressions when the identifying assumptions are not fully believed re evaluating the role of monetary policy in economic fluctuations abstract point estimates and error bands for svars that are set identified are only justified if the researcher is persuaded that some parameter values are a priori more plausible than others when such prior information exists traditional approaches can be generalized to allow for doubts about the identifying assumptions we use information about both structural coefficients and impacts of shocks and propose a new asymmetric t distribution for incorporating information about signs in a nondogmatic way we apply these methods to a three variable macroeconomic model and conclude that monetary policy shocks are not the major driver of output inflation or interest rates

testing for indeterminacy an application to u s monetary policy reply this paper considers a prototypical new keynesian model in which the equilibrium is undetermined if monetary policy is passive the likelihood based estimation of dynamic equilibrium models is extended to allow for indeterminacies and sunspot fluctuations we construct posterior weights for the determinacy and indeterminacy region of the parameter space and estimates for the propagation of fundamental and sunspot shocks according to the estimated model u s monetary policy post 1982 is consistent with determinacy whereas the pre volcker policy is not we find that before 1979 indeterminacy substantially altered the propagation of shocks

price level targeting and stabilisation policy a survey this paper surveys recent articles on the costs and benefits of price level targeting focusing its use as a tool for stabilisation policy it discusses how price level targeting can affect the short run trade off between output and inflation variability by influencing inflation expectations it reviews how assigning an explicit price level target to a central bank that is unable to commit to its future policies can improve economic performance it surveys other potential benefits and costs among the costs it underlines the importance of perfectly rational expectations for the optimality of price level targeting and an exacerbation of the time inconsistency problem

american colonial monetary regimes the failure of the quantity theory and some evidence in favour of an alternate view recent developments in monetary economics suggest that the manner in which money is introduced is more important even for price level movements than the quantity of money colonial american experience provides a laboratory for testing this view it is shown that the nature of backing rather than the quantity of money determined its value large secular inflations were ended by changing the nature of backing despite continued large note issues and despite the absence of a metallic standard extremely large note issues and note withdrawals are shown not to have produced inflation currency depreciation or deflation currency appreciation

a bayesian approach to optimal monetary policy with parameter and model uncertainty abstract this paper undertakes a bayesian analysis of optimal monetary policy for the u k we estimate a suite of monetary policy models that include both forward and backward looking representations as well as large and small scale models we find an optimal simple taylor type rule that accounts for both model and parameter uncertainty for the most part backward looking models are highly fault tolerant with respect to policies optimized for forward looking representations while forward looking models have low fault tolerance with respect to policies optimized for backward looking representations in addition backward looking models often have lower posterior probabilities than forward looking models bayesian policies therefore have characteristics suitable for inflation and output stabilization in forward looking models

real wage rigidities and the new keynesian model most central banks perceive a trade off between stabilizing inflation and stabilizing the gap between output and desired output however the standard new keynesian framework implies no such trade off in that framework stabilizing inflation is equivalent to stabilizing the welfare relevant output gap in this paper we argue that this property of the new keynesian framework which we call the divine coincidence is due to a special feature of the model the absence of nontrivial real imperfections we focus on one such real imperfection namely real wage rigidities when the baseline new keynesian model is extended to allow for real wage rigidities the divine coincidence disappears and central banks indeed face a trade off between stabilizing inflation and stabilizing the welfare relevant output gap we show that not only does the extended model have more realistic normative implications but it also has appealing positive properties in particular it provides a natural interpretation for the dynamic inflation unemployment relation found in the data

monetary policy and inflationary shocks under imperfect credibility abstract in this note we quantify the deterioration of achievable stabilization outcomes when monetary policy operates under imperfect credibility and weak anchoring of long term expectations within a medium scale dynamic stochastic general equilibrium dsge model we introduce through a simple signal extraction problem an imperfect knowledge configuration in which price and wage setters wrongly have doubts about the determination of the central bank to maintain a fixed long term inflation objective in the face of inflationary shocks the magnitude of private sector learning has been calibrated to match the volatility of us inflation expectations at long horizons we find that the costs of maintaining a given inflation volatility under weak credibility could amount to 0 25 percentage point pp of output gap standard deviation

the central bank as shaper and observer of events the case of the yield spread the yield spread has commonly been employed as a successful predictor of economic growth and recessions although its marginal predictive power has decreased since the 1990s notably the yield spread s declining power to predict us economic activity coincided with its growing power to predict us interest rate changes in my view these phenomena are inevitably linked and share one cause the central bank intended to enhance both its transparency and credibility through greater information disclosure this disclosure improved interest rate predictability but might also have crowded out useful private information formerly in the yield spread that helped predict economic activity

drift and breaks in labor productivity abstract we use endogenous break tests and the stock watson tvp mub methodology to investigate changes in the equilibrium rate of growth of labor productivity in the u s the eurozone the u k australia and japan since wwii results for the u s well capture the conventional wisdom of a golden era of high productivity growth the 1950s and 1960s a marked deceleration starting from the beginning of the 1970s and a strong growth resurgence starting from mid 1990s results for the eurozone point towards a deceleration since the early 1980s with the equilibrium rate of growth of output per hour falling to 0 9 in 2004 4

identification robust analysis of dsge and structural macroeconomic models abstract full and limited information identification robust methods are proposed for structural systems notably dsge models which are valid whether identification is weak or strong theory intrinsic or data specific the proposed methods are applied to a standard new keynesian system for the u s single and multi equation estimation and fit are also compared when a unique rational expectation stable equilibrium is imposed the model is rejected in contrast limited information inference produces informative results regarding forward looking behavior in the nkpc and precise conclusions on feedback coefficients in the reaction function which cannot be reached via single equation methods

var analysis and the great moderation post world war ii us macroeconomic history is usually divided into two distinct subperiods the former period which extends up to the end of the volcker disinflation is characterized by a significant extent of macroeconomic turbulence with highly volatile inflation and output growth the latter period from the end of the volcker disinflation up to the present day is marked in contrast by significantly smaller volatilities for both inflation and output growth these dramatic changes in the reduced form properties of the us economy over the last several decades char acterize a phenomenon known as the great moderation see in particular chang jin kim and charles nelson 1999 margaret mcconnell and gabriel perez quiros 2000 a vast empirical literature has investigated the source s of the great moderation in an attempt to disentangle the relative contributions of two main explanations good policy and good luck based on time varying or markov switching structural var methods the good luck hypoth esis has been advocated by a number of authors including james h stock and mark w watson 2003 giorgio e primiceri 2005 christopher sims and tao zha 2006 and luca gambetti evi pappa and fabio canova 2008

investigating inflation persistence across monetary regimes under inflation targeting estimates of the indexation parameter in hybrid new keynesian phillips curves are either equal to zero or very low in the united kingdom canada sweden and new zealand analogous results hold for the euro area under the european monetary union and for switzerland under the new monetary regime under stable regimes with clearly defined nominal anchors inflation appears to be purely forward looking these results question the notion that the intrinsic inflation persistence found in post wwii u s data is structural in the sense of lucas carnegie rochester conference series on public policy 1 1976 19 46 and suggest that hardwiring inflation persistence in macroeconomic models is potentially misleading

an open economy new keynesian phillips curve for the u k abstract we estimate a pricing equation or new keynesian phillips curve nkpc obtained from a structural dynamic model of price setting based on rotemberg 1982 sticky prices in the united states journal of political economy 90 6 1187 1211 and extended to capture employment adjustment costs and the openness of the united kingdom this model nests the baseline gali and gertler 1999 inflation dynamics a structural econometric analysis quarterly journal of economics 110 127 159 and sbordone 2002 prices and unit labor costs a new test of price stickiness journal of monetary economics 49 265 292 relationship between inflation and marginal cost in the limiting case of no employment adjustment costs no impact of relative prices of imported inputs on real marginal cost and a constant equilibrium markup our findings indicate that each of our modifications to the baseline nkpc model is important for u k data so that inflation in the u k is explained both by changes in employment and by changes in real import prices in general and real oil prices in particular external competitive pressures also seem to affect u k inflation via their impact on the equilibrium price markup of domestic firms

calvo vs rotemberg in a trend inflation world an empirical investigation this paper estimates and compares new keynesian dsge monetary models of the business cycle derived under two dierent pricing schemes calvo 1983 and rotemberg 1982 under a positive trend in ation rate our empirical ndings i support trend in ation as an empirically relevant feature of the u s great moderation ii provide evidence in favor of the statistical superiority of the calvo setting iii support the absence of price indexation under the calvo mechanism only the superiority of the calvo model against rotemberg is due to the restrictions imposed by such a pricing scheme on the aggregate demand equation the determinacy regions implied by the two estimated models indicate relevant dierences in the implementable simple policy rules

central bank communication and monetary policy a survey of theory and evidence over the last two decades communication has become an increasingly important aspect of monetary policy these real world developments have spawned a huge new scholarly literature on central bank communication mostly empirical and almost all of it written in this decade we survey this ever growing literature the evidence suggests that communication can be an important and powerful part of the central bank s toolkit since it has the ability to move financial markets to enhance the predictability of monetary policy decisions and potentially to help achieve central banks macroeconomic objectives however the large variation in communication strategies across central banks suggests that a consensus has yet to emerge on what constitutes an optimal communication strategy

exploring international differences in inflation dynamics abstract standard closed economy dsge models have difficulty replicating the persistence of inflation we use a multicountry dataset to establish some empirical regularities on persistence and volatility of aggregate consumer prices for 135 countries since 1993 we find both persistence and volatility to be low high in developed developing countries relative to the full sample average this pattern is also observed in low high inflation countries we then employ a two country dsge framework to investigate the extent to which structural open economy features such as incomplete exchange rate pass through the existence of nontraded goods and international financial market incompleteness can help in replicating the persistence and volatility of consumer prices our simulation results indicate that the model can replicate the degree of inflation persistence seen in the data for both developed and developing countries but cannot generate the low levels of volatility observed in developed economies

the long run phillips curve a structural var investigation both cointegration methods and non cointegrated structural vars identified based on either long run restrictions or a combination of long run and sign restrictions are used in order to explore the long run trade off between inflation and the unemployment rate in the post wwii u s u k euro area canada and australia overall neither approach produces clear evidence of a non vertical trade off the extent of uncertainty surrounding the estimates is however substantial thus implying that a researcher holding alternative priors about what a reasonable slope of the long run trade off might be will likely not see her views falsified

interpreting inflation persistence comments on the conference on quantitative evidence on price determination the past decade has seen important advances in the analysis of price setting behavior most notably in my view a great deal of effort has been directed at the development of models that on the one hand have an explicit behavioral interpretation the models are clear about who sets prices what they seek to achieve when choosing prices and to what constraints they are subject when making the decision and at the same time can be parameterized so as to be compared in detail to inflation data this has allowed these models to be incorporated into complete dsge models of business fluctuations and of the monetary transmission mechanism that can be econometrically estimated this raises the prospect that it should soon be possible to base policy analysis on models that are both quantitatively realistic and plausibly invariant under the kinds of changes in policy that the analyst may wish to contemplate some argue that these two desiderata remain in considerable tension with one another that one cannot insist upon optimizing foundations at least under the current state of knowledge without substantial sacrifice of quantitative realism it is somewhat unfair however to present the quest for a model with optimizing foundations as a retreat from full insistence upon empirical realism given the fact that models with clear behavioral interpretations can be checked against a wider range of types of empirical evidence which should ultimately allow greater confidence in the realism of the specification that can withstand such scrutiny for example the exhaustive recent study of evidence on price setting in the euro area undertaken by the eurosystem s inflation persistence network compares alternative models in the light of three distinct

golden fetters the gold standard and the great depression barry eichengreen oxford university press new york 1992 pp xix 448 39 95

the persistence of inflation in the united states abstract has the persistence of inflation in the united states changed since 1965 we estimate the persistence of inflation over time using different measures and estimation procedures and we produce confidence intervals for our estimates as well as formal tests of unchanged persistence we find that inflation persistence has been high and approximately unchanged in the u s over our sample period we reconcile our results with other studies that reached different conclusions

real wage rigidities and disinflation dynamics calvo vs rotemberg pricing abstract calvo pricing implies output gains while rotemberg pricing implies output losses after a disinflation introducing real wage rigidities has opposite effects it generates a long lasting boom in output in calvo and a moderate output slump in rotemberg

trend inflation and firms price setting rotemberg versus calvo we compare the calvo and rotemberg price setting mechanisms in a new keynesian model with trend inflation we show that the long run relationship between inflation and output is positive in rotemberg and negative in calvo the dynamics of the two models differ even to a first order approximation positive trend inflation enlarges the determinacy region in the rotemberg model whereas it shrinks it in the calvo model the responses of output and inflation to technology shocks are amplified by trend inflation in calvo whereas they are dampened in rotemberg the two models imply differing non linear adjustments after a disinflation

intrinsic persistence of wage inflation in new keynesian models of the business cycles we derive and estimate a new keynesian wage phillips curve that accounts for intrinsic inertia in line with microevidence on wage setting we consider a wage setting model featuring an upward sloping hazard function based on the notion that the probability of resetting a wage depends on the time elapsed since the last reset our wage phillips curve embeds also backward terms we test the hazard function slope using generalized method of moment estimation then placing our equation in a small scale new keynesian model we investigate its dynamic properties using bayesian estimation model comparison shows that our model outperforms commonly used alternative methods to introduce persistence

some colonial evidence on two theories of money maryland and the carolinas recent developments in monetary economics stress the nature of monetary injections emphasizing that they have implications for the relationship between money and prices in contrast traditional approaches posit stable money demand functions that are independent of how money is injected the former approach implies that certain proportionality relations between money and prices need not obtain this permits the two approaches to be empirically distinguished but only if an appropriate experiment is conducted the colonial period is one such experiment colonial evidence suggests that the nature of injections is crucial to the effect on prices of changes in the money supply

imperfect credibility and inflation persistence in this paper we formulate a dynamic general equilibrium model with staggered nominal contracts in which households and rms use optimal ltering to disentangle persistent and transitory shifts in the monetary policy rule the calibrated model accounts quite well for the dynamics of output and insation during the volcker disinsation and implies a sacri ce ratio very close to the estimated value our approach indicates that insation persistence and substantial costs of disinsation can be generated in an optimizing agent framework without relaxing the assumption of rational expectations or relying on arbitrary modi cations to the aggregate supply relation jel classi cation e31 e32 e52

causes of nonlinearities in low order models of the real exchange rate abstract this paper investigates the extent to which modern dsge models which feature local currency pricing home bias nontraded goods and incomplete markets can generate nonlinear real exchange rate dynamics that are consistent with those found in the time series literature using data from the current floating period our key findings are as follows first if the true model can be appropriately characterized as a set of linear equations then linearity tests that utilize univariate autoregressions of the real exchange rate suffer from an omitted variables problem which leads them to overestimate the true incidence of nonlinearity consequently studies that fail to control for this problem may spuriously find evidence of nonlinearities in the data despite the fact that the data generating process may be linear second we propose a strategy that can largely eliminate this distortion finally we find that dsge models solved using higher order approximations are capable of generating true structural nonlinearities in real exchange rates both asymptotically and in short samples

is deflation costly after all the perils of erroneous historical classifications i estimate average economic activity during periods of inflation and deflation while accounting for measurement errors in 19th century prices these measurement errors lead to underestimation overestimation of economic activity during periods of inflation deflation by exploiting multiple deflation indicators it is possible to recover the true relationship the shortfall of us industrial production growth during periods of deflation ranges from 4 5 pp to 7 6 pp instead of 2 pp i also find a negative relationship between deflation and real activity in the uk i then examine the cross country variation in the estimates for eleven countries the patterns are consistent with stronger biases for countries with more serious measurement errors in prices

a retrospective on the bretton woods system lessons for international monetary reform at the close of the second world war when industrialized nations faced serious trade and financial imbalances delegates from forty four countries met in bretton woods new hampshire in order to reconstruct the international monetary system over the next 25 years with currencies fixed to the american dollar world trade expanded vigorously inflation remained moderate and national income in industrialized countries rose faster than during any other period in this volume three generations of scholars and policy makers some of whom participated in the 1944 conference consider how the bretton woods system contributed to economic stability and rapid growth between 1945 and 1971 and discuss the future of the international monetary system in light of the bretton woods experience since president richard m nixon ended the bretton woods system in 1971 exchange rates have exhibited increasing flexibility after twenty years of floating rates however there is considerable interest in once again limiting exchange rate flexibility the apparent success of the european monetary system a fixed rate arrangement loosely based on the postwar system and the prospect of european monetary unification increase interest in a new internationally stable exchange rate moreover some academics and government officials see fixed rates as a way to help eastern europe and the former soviet union cope with pressing economic and political problems the economists historians political scientists and policy makers who contribute to this volume relate the bretton woods system to earlier fixed rate schemes and consider the political background of the original new hampshire meeting using recenteconomic theory for example work on time consistency and credibility they explore adjustment liquidity and transmission under the system the way it affected developing countries and the role of the international monetary fund in maintaining a stable rate the authors examine th

disinflation inequality and welfare in a tank model we investigate the redistributive and welfare effects of disinflation in a two agent new keynesian tank model characterized by limited asset market participation lamp and wealth inequality we highlight two key mechanisms driving our long run results i the cash in advance constraint on firms working capital cia ii dividends endogeneity these two channels point in opposite directions lower inflation softens the cia and by raising labor demand lowers inequality but the disinflation also raises dividends and this increases inequality the disinflation is always welfare improving for asset holders we obtain ambiguous results for non asset holders who suffer substantial consumption losses during the transition

monetary facts revisited abstract this paper uses data from 46 economies over the post war period to revisit two key monetary facts i the link between money growth and inflation and ii the link between credit growth and financial crises the analysis reveals that the former has weakened over time while the latter has become stronger this suggests that there is an inverse relationship between the two monetary facts the money inflation link is weak and the credit crisis nexus is strong when inflation is low and financial systems are liberalised while the reverse holds true in environments of high inflation and less liberalised financial systems

convergence of inflationary shocks evidence from the caribbean in this paper we aim to shed some light on the inflation dynamics in the caribbean we analyse the inflation rates for twelve countries using various time series methods the results show that the inflation rates are mean reverting processes and that there is evidence of a convergence club in inflation rates within the area which contradicts previous studies our contribution implies a high degree of similarity in the dynamics of our target countries inflation rates

policy regimes policy shifts and u s business cycles abstract using an estimated dsge model with monetary and fiscal policy interactions and allowing for equilibrium indeterminacy we find that a passive monetary and passive fiscal policy regime prevailed in the pre volcker period this gave rise to self fulfilling beliefs and unconventional transmission mechanisms of policy shifts unanticipated increases in interest rates increased inflation and output while unanticipated increases in lump sum taxes decreased inflation and output we show that had the monetary policy regime of the post volcker era been in place pre volcker inflation volatility would have been lower by 25 and the rise of inflation in the 1970s would not have occurred

the dynamics of persistence in us inflation abstract using a recently developed time series approach we show that post wwii us inflation became highly persistent during the great inflation period and then switched back to a low persistence process during 1984 and has remained stationary until the present day

us inflation dynamics on long range data in this article we evaluate inflation persistence in the united states using long range monthly and annual data the importance of inflation persistence is crucial to policy authorities and market participants since the level of inflation persistence provides an indication on the susceptibility of the economy to exogenous shocks departing from classic econometric approaches found in the relevant literature we evaluate inflation persistence through the nonparametric hurst exponent within both a global and a rolling window framework moreover we expand our analysis to detect the potential existence of chaos in the data generating process in order to enhance the robustness of our conclusions overall we find that inflation persistence is high from 1775 to 2013 for the annual data set and from february 1876 to may 2014 in monthly frequency respectively especially from the monthly data set the rolling window approach allows us to derive that inflation persistence has reached to historically high leve

evolving u s monetary policy and the decline of inflation predictability based on a structural var with time varying parameters and stochastic volatility for the post wwii u s we document a negative correlation between the evolution of the long run coefficient on inflation in the structural monetary rule and the evolution of the persistence and predictability of inflation relative to a trend component using an estimated sticky price model we show that a more aggressive policy stance towards inflation causes a decline in inflation predictability jel e37 e52 e58

yesterday s bad times are today s good old times retail price changes are more frequent today than in the 1890s this paper documents differences in the nominal rigidity of retail prices across two 28 month periods 1889 91 and 1997 99 the most striking finding is that prices changed much less frequently in 1889 91 in the late 1800s when price changes did occur they were smaller on average and more narrowly distributed with fewer small or large price changes further price changes were more permanent 100 plus years ago these differences are consistent with a high occurrence of temporary price shocks and a higher cost of changing prices in 1889 91 than in 1997 99

trend inflation indexation and inflation persistence in the new keynesian phillips curve purely forward looking versions of the new keynesian phillips curve nkpc generate too little inflation persistence some authors add ad hoc backward looking terms to address this shortcoming we hypothesize that inflation per sistence results mainly from variation in the long run trend component of inflation which we attribute to shifts in monetary policy we derive a version of the nkpc that incorporates a time varying inflation trend and examine whether it explains the dynamics of inflation when drift in trend inflation is taken into account a purely forward looking version of the model fits the data well and there is no need for backward looking components jel e12 e31 e52 in this paper we consider the extent to which guillermo calvo s 1983 model of nominal price rigidities can explain inflation dynamics without relying on arbitrary backward looking terms in its baseline formulation the calvo model leads to a purely forward looking new keynesian

posterior predictive evidence on us inflation using extended new keynesian phillips curve models with non filtered data changing time series properties of us inflation and economic activity measured as marginal costs are modeled within a set of extended new keynesian phillips curve nkpc models it is shown that mechanical removal or modeling of simple low frequency movements in the data may yield poor predictive results which depend on the model specification used basic nkpc models are extended to include structural time series models that describe typical time varying patterns in levels and volatilities forward and backward looking expectation components for inflation are incorporated and their relative importance is evaluated survey data on expected inflation are introduced to strengthen the information in the likelihood use is made of simulation based bayesian techniques for the empirical analysis no credible evidence is found on endogeneity and long run stability between inflation and marginal costs backward looking inflation appears stronger than forward looking inflation levels and volatilities of inflation are estimated more precisely using rich nkpc models the extended nkpc structures compare favorably with existing basic bayesian vector autoregressive and stochastic volatility models in terms of fit and prediction tails of the complete predictive distributions indicate an increase in the probability of deflation in recent years

on the precision of calvo parameter estimates in structural nkpc models abstract we study the extent of empirical information that can be obtained from alternative structural new keynesian inflation equations concerning the average duration of prices in the united states given that such specifications may be hard to identify using four different indexation and real wage rigidity based models in conjunction with identification robust econometric methods we evaluate the precision of calvo parameter estimates while results are sensitive to calibration and instrument selection we find confidence bounds on the average duration of prices that line up with available micro founded studies statistically significant coefficients for the forcing variables and non zero estimates on the coefficient of lagged inflation

what is the globalisation of inflation abstract this paper studies the globalisation of cpi inflation by analysing core energy and food components testing for structural breaks in the relationships between domestic inflation and a corresponding country specific foreign inflation series at the monthly frequency for oecd countries the iterative methodology employed separates coefficient and variance breaks while also taking account of outliers we find that the overall pattern of globalisation in aggregate inflation is largely driven by convergence of the mean levels of the core component from the early 1990s compatible with the introduction of inflation targeting in many countries of our sample there is less evidence of increased synchronisation of shortrun movements in core than aggregate inflation but an increased role for shortrun foreign energy inflation often contributes to the globalisation effect

identifying the influences of nominal and real rigidities in aggregate price setting behavior we formulate a generalized price setting framework that incorporates staggered contracts of multiple durations and that enables us to directly identify the influences of nominal vs real rigidities we estimate this framework using macroeconomic data for germany 1975 1998 and for the u s 1983 2003 in each case we find that the data are well characterized by nominal contracts with an average duration of about two to three quarters we also find that new contracts exhibit very low sensitivity to marginal cost corresponding to a relatively high degree of real rigidity finally our results indicate that backward looking price setting behavior such as indexation to lagged inflation is not needed in explaining the aggregate data at least in an environment with a stable monetary policy regime and a transparent and credible inflation objective

perceived inflation persistence this article constructs and estimates a measure called perceived inflation persistence that can be used to determine if professional forecasters inflation forecasts indicate there has been a change in inflation persistence this measure is built via the implied autocorrelation function that follows from the estimates obtained using a forecaster specific state space model findings indicate that u s perceived inflation persistence has changed since the mid 1990s with more consensus among forecasters at lower levels of persistence when compared to the autocorrelation function for actual inflation forecasters typically react less to shocks to inflation than the actual inflation data would suggest

monetary policy rules in theory and in practice evidence from the uk and the us given the large amount of interaction between research on monetary policy and its practice this article examines whether some simple monetary policy rules that have been proposed in the academic literature part of which has originated from within central banks provide a reasonable characterization of actual policy in the united kingdom and the united states the article finds the simple rule that describes best the actual us monetary policy is a speed limit rule with dynamics whilst for the uk it is a forward looking rule the simpler dynamics in the uk s monetary policy rule are reflective of the lower persistence of inflation as a result of its policy of inflation targeting

payment vehicles for public goods evidence from california s proposition 21 proposition 21 on california s 2010 ballot concerned an annual surcharge on vehicles to support state parks proposition 21 failed leaving 25 of california state parks at risk of closure we analyze voting patterns which we show depend on the average gross price of the proposition political ideology environmental preferences the availability of substitutes and park salience we simulate counterfactual scenarios under which proposition 21 might have passed and use holdout samples to illustrate the predictive ability of our model heterogeneity across california makes our model potentially useful for predicting public sentiment for similar propositions even for jurisdictions without direct democracy