time varying smooth transition autoregressive models nonlinear regime switching behavior and structural change are often perceived as competing alternatives to linearity in this article we study the so called time varying smooth transition autoregressive tv star model which can be used both for describing simultaneous nonlinearity and structural change and for distinguishing between these features two modeling strategies for empirical specification of tv star models are developed monte carlo simulations show that neither of the two strategies dominates the other a specific to general to specific procedure is best suited for obtaining a first impression of the importance of nonlinearity and or structural change for a particular time series a specific to general procedure is most useful in careful specification of a model with nonlinear and or time varying properties an empirical application to a large dataset of u s macroeconomic time series illustrates the relative merits of both modeling strategies

asymmetric persistence in gdp a deeper look at depth abstract if an economic time series behaves asymmetrically then an interpretation of economic fluctuations based on linear time series models could be misleading beaudry and koop 1993 recently argued that for post war us gdp data there exists a statistically significant difference in persistence between negative and positive shocks we demonstrate that their test has two pitfalls first the t statistic for testing asymmetry in persistence does not have a conventional interpretation second a highly significant t value may come from sources different from asymmetry using international data we investigate for the presence of asymmetric persistence across the g 7 countries

evaluating forecasts from setar models of exchange rates we consider the forecasting performance of two setar exchange rate models proposed by krager and kugler j int money fin 12 1993 195 assuming that the models are good approximations to the data generating process we show that whether the non linearities inherent in the data can be exploited to forecast better than a random walk depends on both how forecast accuracy is assessed and on the state of nature evaluation based on traditional measures such as root mean squared forecast errors may mask the superiority of the non linear models generalized impulse response functions are also calculated as a means of portraying the asymmetric response to shocks implied by such models

further evidence on business cycle asymmetries in g7 countries this paper tests for business cycle symmetry in g7 countries during the post world war ii period using a number of tests each reflecting alternative definitions of business cycle asymmetry the tests are applied to monthly coincident economic indicators of business cycles this found that business cycles in the us are characterized by both longitudinal deepness and transversal steepness and sharpness asymmetries further it is found that asymmetric transition probabilties and time irreversibility are due to nonlinearities on the contrary business cycles in germany exhibits a symmetric behaviour between these extremes are the other countries for which at least one of the tests here considered rejects the null of cyclical symmetry particularly business cycle is characterized by deepness and sharpness in canada asymmetry in persistence in france and japan and asymmetric transition probabilities in france and united kingdom

macroeconomic and distributional effects of mortgage guarantee programs for the poor abstract government driven mortgage guarantee programs for example loans insured through the federal housing administration the department of veterans affairs and the rural housing service aim to help financially disadvantaged households buy and own their houses this study analyzes the macroeconomic and distributional effects of these government programs we propose a quantitative model where households endogenously choose their mortgage types either with or without government guarantees households that take out mortgages with government guarantees pay an up front insurance premium while those that choose mortgages without guarantees face borrowing limits our results show that a hypothetical decline in government subsidies for mortgage guarantee programs can improve aggregate household welfare mainly due to endogenous changes in mortgage interest rates and tax burdens rather than in housing prices the welfare implications are different across households depending on their financial status

tracking the new economy using growth theory to detect changes in trend productivity abstract the acceleration of productivity after 1995 prompted a debate over whether the economy s underlying growth rate would remain high in this paper we draw on growth theory to identify variables other than productivity namely consumption and labor compensation to help estimate trend productivity growth we treat that trend as a common factor with two regimes high and low growth our analysis picks up striking evidence of a return in 1997 to the high growth regime nearly 25 years after a switch from high to low growth we find that both the common factor and regime switching aspects of the model are important for identifying changes in trend productivity and also show that the trend breaks are more difficult to detect with per capita as opposed to per hour based data because of persistent labor supply shifts finally we argue that our methodology is effective in detecting changes in trend in real time in the case of the 1990s the methodology would have signaled the regime switch by 1999 or within roughly six quarters of when it occurred according to the full sample

further evidence on the asymmetric behavior of economic time series over the business cycle evidence has recently been presented by salih neftci to support the hypothesis that recessions in economic activity tend to be steeper and more short lived than recoveries in economic activity that evidence however was confined to the behavior of the unemployment rate in the united states in this paper it is shown that when neftci s methods are applied to analyze the behavior of real gross national product investment and productivity in the united states or when they are used to analyze industrial production abroad the asymmetry hypothesis seems to be less compelling

the brevity and violence of contractions and expansions abstract early studies of business cycles argued that contractions in economic activity were briefer shorter and more violent rapid than expansions this paper systematically investigates this claim and in the process discovers a robust new business cycle fact contractions in employment are briefer and more violent than expansions but we cannot reject the null of equal brevity and violence for expansions and contractions in output the difference arises because employment typically lags output around peaks but they coincide in their troughs we discuss the performance of existing business cycle models in accounting for this fact and conclude that none can fully account for it we then show that a business cycle model with asymmetric adjustment costs on employment and a choice of when to scrap old technologies can account for the business cycle fact both qualitatively and quantitatively

u s and canadian industrial production indices as coupled oscillators abstract this paper uses ozaki s 1985 variable amplitude coefficient model to explore the impact of different types of dynamical linkages coupling between the indices of industrial production for the u s and canada empirical analysis reveals that for each country the requisite lag structure extends for up to six years and that the coupling linkages are functions of lagged changes in growth rates incorporating these linkages leads to an increased degree of oscillation in the equilibrium paths a marginal improvement in stability and somewhat greater synchronization between the two series the out of sample forecasts for each series are improved by the coupling

money supply announcements and foreign exchange futures prices for five countries since the federal reserve began targeting money supply growth in october 1979 the effects of fed money supply announcements on financial markets have been intensively examined studies have considered the impacts on financial assets including yields on short term and long term treasury securities forward interest rates exchange rates stock prices and commodity prices these studies suggest that money supply announcements have had significant effects on all these financial assets the effects however have not been consistent across time assets or countries this study adds to the money supply announcement literature focusing on foreign exchange spot and currency future prices mussa 23 provides a justification for this approach he demonstrates that exchange rates move in accord with the efficient markets theory of asset price determination in addition he finds most exchange rate changes are unexpected thus exchange rate changes generally should be related to news since unexpected changes must be due to new information how exchange rates respond to news depends on how that information alters expectations those expectations however depend on economic agents historical experience and on policymakers anticipated reactions thus the effects may vary across countries and across policymaking regimes we believe this study makes four contributions to the money announcement literature first we develop a model of money announcements where expected announcements may be important even when markets are efficient while we consider money announcements in particular the model suggests a general result even expected announcements may affect financial market variables simply by confirming prior expectations second we extend and update the prior literature by examining whether recent money supply announcements have an impact on exchange rates and whether recent impacts differ from those found through 1985 the results suggest the impact of money announcements may have diminished marginally third we extend the analysis to exchange rate currency futures comparing the reactions of spot and futures rates yields further evidence on the policy anticipation versus the expected inflation effects and fourth most prior studies of unanticipated money growth do not distinguish between positive and negative surprises if positive and negative surprises influence market prices asymmetrically however

on the risk spillover across the oil market stock market and the oil related cds sectors a volatility impulse response approach abstract compared to credit default swap cds literature this study focuses on the magnitude of volatility transmission and the risk spillover mechanism across the oil market financial market risks and the oil related cds sectors our dataset includes futures prices of west texas intermediate wti and seven different measures of markets and credit risks four of the vast risk measures are the oil related cdss for auto chemicals natural gas and utility sectors in addition three measures of the financial market risk the one month expected equity volatility measured by vix move and smove are included the daily dataset covers the period from 6 january 2004 to 2 february 2016 the volatility transmission mechanism across the oil and financial markets and cds sectors is examined using the volatility impulse response model we evaluate the risk transmission due to several recent crisis shocks around the world and the results show complicated transmission mechanisms that spread over long periods among these events the lehman brothers bankruptcy has destabilizing effects on all oil related sectors findings also show that all oil market related shocks have significant risk transmission effects

modelling business cycle nonlinearity in conditional mean and conditional variance some international and sectoral evidence this paper tests for the presence of output mean and variance nonlinearities in international industrial production and uk and us sectoral production growth rates using armagqarch bilinear bl and joint bl gqarch models arma gqarch models confirm the presence of asymmetric variance effects in italian uk and us industrial production and in all sectors other than us nondurables and such that the conditional variance of output is increased following negative shocks bl models are identified for german italian and us industrial production and us manufacturing while bl gqarch models of joint nonlinearity in both conditional mean and conditional variance are also found to hold for us industrial production and manufacturing moreover with the exception of italy all bl and bl qarch models provide superior out of sample mean forecasts relative to forecasts from both naive models and models of the arma gqarch class

steepness and deepness in the australian macroeconomy this study uses nonparametric tests the triples test and the bds test to examine whether key australian macroeconomic aggregates exhibit nonlinearities and important steepness and deepness asymmetries at the business cycle frequency evidence is found of nonlinearities but there is little evidence of deepness in the australian macroeconomy however there is evidence of steepness especially concerning labour market variables as well as both the cpi and m3 the evidence suggests that unemployment employment rises falls rapidly in recessions and only recovers slowly over time also positive asymmetries in m3 are reflected in similar asymmetries in the cpi but not in output consumption or investment

a floor and ceiling model of us output abstract building on previous nonlinear time series models we further examine the form of nonlinearity in us output we develop a model of us output that allows for floor and ceiling effects to alter the dynamics of output growth the model estimated on post korean war quarterly data displays features similar to nonlinear trade cycle models of the 1940s and 1950s thus as predicted by many of the earlier theoretical models our empirical results suggest that the turning points of the business cycle provide new initial conditions for the ensuing growth process we also find important asymmetries in the responses of output to positive and negative shocks this history and shock dependence property is not present in linear or approximately linear models of the type that arise in the standard implementations of real business cycle theory

is the persistence of shocks to output asymmetric abstract this paper provides evidence that the persistence of positive shocks to output is not significantly different from the persistence of negative shocks this contrasts the results of beaudry and koop 1993 journal of monetary economics 31 149 163 showing asymmetry in the effects of innovations to gnp an unobserved components model modified to incorporate a threshold process is used to examine gnp as well as industrial production data its ability to discriminate between positive and negative output shocks and separately estimate their enduring effects provides for a more cogent test of symmetry in the persistence of shocks

pricing claims under garch level dependent interest rate processes this article considers the pricing of interest rate sensitive claims when the underlying interest rate is driven by a two state variable garch process analytical solutions are established for the case when the innovations in the short rate are normal and or chi squared random variables and the volatility of rates take on a special garch form garch models that nest level dependent interest rate models including the cox ingersoll and ross model are also considered algorithms are provided that permit the efficient pricing of american style interest rate claims under a rather broad array of garch level dependent processes

a nonlinear approach to us gnp a univariate nonlinear model is estimated for us gnp that on many criteria outperforms standard linear models the estimated model is of the threshold autoregressive type and contains evidence of asymmetric effects of shocks over the business cycle in particular the nonlinear model suggests that the post 1945 us economy is significantly more stable than the pre 1945 us economy

modeling nonlinearity of business cycles choosing between the cdr and star models nonlinear modeling has become popular in applied macroeconomics successful attempts include beaudry and koop s cdr current depth of the recession model of real gnp and various star smooth transition autoregression models of industrial production however these models have not been directly compared we compare cdr and star models of u s real gnp and industrial production we find i within sample the cdr model fits slightly better than the star model ii out of sample the cdr model forecasts better than the star model and iii the cdr model generates very different dynamics than the star model

cointegration and threshold adjustment this article proposes an extension to the engle granger testing strategy by permitting asymmetry in the adjustment toward equilibrium in two different ways we demonstrate that our test has good power and size properties over the engle granger test when there are asymmetric departures from equilibrium we consider an application namely whether there exists cointegration among interest rates for instruments with different maturities this issue has been widely tested with mixed results we argue that either cautious policy or possibly opportunistic behavior on the part of the federal reserve implies that an equilibrium relationship between short and long term interest rates exists but that adjustments from disequilibrium are asymmetric in nature empirical tests using u s yields confirm the asymmetric nature of error correction among interest rates of different maturities

financial intermediation and regime switching in business cycles the authors study a one sector growth model where capital investment is credit financed and there is an adverse selection problem in credit markets the presence of adverse selection creates an indeterminacy of equilibrium many equilibria display permanent fluctuations characterized by transitions between walrasian regimes and regimes of credit rationing cyclical contractions involve declines in real interest rates increases in credit rationing and withdrawals of savings from banks for some configurations of parameters all equilibria display cyclical fluctuations the authors provide sufficient conditions for deterministic cycles consisting of m periods of expansion followed by n periods of contraction to exist copyright 1998 by american economic association

dynamic asymmetries in u s unemployment we examine dynamic asymmetries in u s unemployment using nonlinear time series models and bayesian methods we find strong statistical evidence in favor of a two regime threshold auto regressive model empirical results indicate that once we take into account both parameter and model uncertainty there are economically interesting asymmetries in the unemployment rate one finding of particular interest is that shocks that lower the unemployment rate tend to have a smaller effect than shocks that raise the unemployment rate this finding is consistent with unemployment rises being sudden and falls gradual

the non linear dynamics of output and unemployment in the u s this paper studies the joint dynamics of u s output and unemployment rate in a nonlinear var model the nonlinearity is introduced through a feedback variable that endogenously augments the output lags of the var in recessionary phases sufficient conditions for the ergodicity of the model potentially applying to a larger class of threshold models are provided the linear specification is severely rejected in favor of our threshold var however in the estimation the feedback is found to be statistically significant only on unemployment while it transmits to output through its cross correlation this feedback effect from recessions generates important asymmetries in the propagation of shocks a possible key to interpret the divergence in the measures of persistence existing in the literature the regime dependent persistence also explains the finding that the feedback from recession exerts a positive effect on the long run growth rate of the economy an empirical validation for the schumpeterian macroeconomic theories

asymmetries and nonlinearities in italian macroeconomic fluctuations this paper reports the results of an empirical investigation of business cycle asymmetries in the italian economy macroeconomic time series both annual post unity and quarterly post world war ii are subjected to nonlinearity and asymmetry tests the dynamics of recessions and expansions are then modelled with threshold autoregressive and markov switching models the paper shows that allowing for two regimes is sufficient to account for the finding of neglected nonlinearity the results indicate that business cycle asymmetries can provide both an intuitive economic interpretation and a parsimonious representation of nonlinearities in macroeconomic time series

long memory and persistence in aggregate output abstract we examine persistence in u s aggregate output by estimating fractionally integrated arima models these models provide better low frequency approximations to the wold representation than previous stochastic specifications and earlier results on the importance of a permanent component emerge as special cases we find evidence of long memory which induces persistence though this long memory need not be associated with a unit root our point estimates indicate that macroeconomic shocks while persistent are distinctly less persistent than many earlier studies suggest however confidence intervals associated with the long run response are quite wide

do large recessions reduce output permanently the slow recovery following the 2008 2009 recession has led to renewed interest in the question whether deep recessions lower real gdp permanently or whether we can expect a rebound to earlier trend levels using a recent quantile autoregression unit root test we check whether shocks to real gdp have permanent or temporary effects in contrast to earlier studies this approach takes into account that the transmission of a shock might depend on the sign and the size of the shock large recessionary shocks might have a different effect than smaller recessionary or expansionary shocks we do not only test the unit root hypothesis at the conditional mean of gdp but also in the tails of the distribution where the lower tail corresponds to large recessions the test has more power than conventional unit root tests we find that positive and negative shocks including large recessionary shocks have permanent effects on output therefore a rebound of gdp to its pre crisis trend level is unlikely current output gap estimates based on deterministic trends are likely to be too negative and inflation forecasts based on these are likely to be too low

are business cycles asymmetric a correction neftci 1984 proposed a nonparametric test procedure for determining whether business cycles are asymmetric in the sense that contractions are steeper than expansions he found evidence of this type of asymmetry in postwar quarterly u s unemployment variables this comment identifies a probable error in neftci s empirical work that reverses the significance of his results for the unemployment rate and it suggests that this test may have low power and be sensitive to measurement error

misperception driven chaos theory and policy implications abstract in a large economy it is extremely difficult if not impossible to immediately grasp the state of our surrounding environment with precision since we normally have access only to a subset of relevant information in this paper we introduce this information imperfection into an ordinary model of endogenous business cycles and examine how it would affect the dynamic nature of the model we in particular present a mechanism by which observation errors result in chaotic fluctuations in a model that would behave regularly otherwise thereby indicating the importance of potential misperception about the current state in a qualitative sense also our model is tractable enough to explicitly derive a policy index of chaotic fluctuations under some conditions this feature of the model allows us to draw some policy implications regarding the observability of macroeconomic state variables

volatility transmission and volatility impulse response functions in crude oil markets abstract using daily data from july 2005 to february 2011 for wti dubai and brent futures contracts we employ a var bekk model to investigate crude oil markets integration on the second moment we also quantify the size and persistence of these connections through the analysis of volatility impulse response functions virf for two historical shocks namely the 2008 financial crisis and the bp deepwater horizon oil spill we observe that brent and dubai crude are highly responsive to market shocks whereas wti crude shows the least responsiveness of the three benchmarks which creates questions about its predominance as a benchmark crude oil furthermore we fit the density of the virf at different forecast horizons these fitted distributions are asymmetric showing that the probability of observing a large impact of a shock is lower while the probability of a relatively smaller impact is much higher finally we simulate the virf for a given probability of a random shock the virf shows that only a large shock derived from a smaller probability will result in an increase in expected conditional volatilities these results provide useful insights into the volatility transmission mechanism in crude oil markets and their associated risk estimation and may have significant implications for various market participants and regulators

the asymmetric effects of monetary policy a nonlinear vector autoregression approach this paper tests for nonlinearity in a standard vector autoregression including output prices and money supply using an estimation strategy that is consistent with a wide range of structural macroeconomic models shocks to the money supply are found to have stronger output effects and weaker price effects when output growth is initially low positive and negative monetary shocks are found to have nearly symmetric effects in addition there is some evidence that shocks of different magnitudes have asymmetric effects these results are consistent with the view that the aggregate supply curve is convex

nonlinear time series modelling an introduction recent developments in nonlinear time series modelling are reviewed three main types of nonlinear model are discussed markov switching threshold autoregression and smooth transition autoregression classical and bayesian estimation techniques are described for each model parametric tests for nonlinearity are reviewed with examples from the three types of model finally forecasting and impulse response analysis is developed

business cycle asymmetries characterisation and testing based on markov switching autoregressions tests for business cycle asymmetries are developed for markov switching autoregressive models the tests of deepness steepness and sharpness are wald statistics which have standard asymptotics for the standard two regime model of expansions and contractions deepness is shown to imply sharpness and vice versa whereas the process is always nonsteep two and three state models of u s gnp growth are used to illustrate the approach along with models of u s investment and consumption growth the robustness of the tests to model misspecification and the effects of regime dependent heteroscedasticity are investigated

are output fluctuations transitory according to the conventional view of the business cycle fluctuations in output represent temporary deviations from trend the purpose of this paper is to question this conventional view if fluctuations in output are dominated by temporary deviations from the natural rate of output then an unexpected change in output today should not substantially change one s forecast of output in say five or ten years our examination of quarterly postwar united states data leads us to be skeptical about this implication the data suggest that an unexpected change in real gnp of 1 percent should change one s forecast by over 1 percent over a long horizon

european business cycles new indices and their synchronicity this article presents a new business cycle index that allows for cycle to cycle comparisons of the depth of recessions within a country cross country comparisons of business cycle correlation and simple aggregation to arrive at a measure of a european business cycle the data augmentation implied by gibbs sampling generates posterior distributions for a latent coincident business cycle index subsample correlations between an aggregated europe index and the national business cycle indices from france germany and italy are consistent with the claim that the european economies are becoming more harmonized

financial development and economic growth in south korea an application of smooth transition error correction analysis this article investigates the influences of financial development on economic growth for south korea the analysis is performed using an error correction model and a nonlinear smooth transition error correction technique empirical results from the cointegration test reveal that there is a long run equilibrium relationship among financial development and economic growth we also demonstrate that the nonlinear specification is more appropriate than the linear model and confirm the presence of nonlinearity in the aggregate output furthermore we find that the short run effect of financial development on economic growth is unstable despite the positive long term effect

nonlinear permanent temporary decompositions in macroeconomics and finance we suggest a method of decomposing univariate and multivariate nonlinear processes into their permanent and temporary components extending the analysis of beveridge and nelson 1981 and stock and watson 1987 we provide applications in the univariate nonlinear case to recent work on nonlinearities in the us business cycle and in the multivariate nonlinear case to recent work on asymmetric nonlinear adjustment in the term structure of interest rates for the us the business cycle results suggest that the method may be particularly useful in future research on output fluctuations

are economic time series asymmetric over the business cycle it has long been argued that major cyclical variables such as the unemployment rate display an asymmetric behavior over various phases of the business cycle the paper provides a statistical test for this hypothesis using the framework of finite state markov processes i implement a test to see if the behavior of the unemployment rate is characterized by sudden jumps and slower drops it is argued that the framework provided in the paper can also be used to test other sample path properties of economic time series

a qualitative threshold model of daily exchange rate movements abstract by drawing on a number of examples this paper demonstrates that although the variation in the approximate daily returns on foreign currencies remains unpredictable to a very large extent part of it can nevertheless be explained on the grounds of certain qualitative characteristics of price movements in the recent past the results cast doubt on the popular supposition that daily exchange rate movements can be reasonably described as a random walk

characterizing nonlinearities in business cycles using smooth transition autoregressive models during the past few years investigators have found evidence indicating that various time series representing business cycles such as production and unemployment may be nonlinear in this paper it is assumed that if the time series is nonlinear then it can be adequately described by a smooth transition autoregressive star model the paper describes the application of these models to quarterly logarithmic production indices for 13 countries and europe tests reject linearity for most of these series and estimated star models indicate that the nonlinearity is needed mainly to describe the responses of production to large negative shocks such as oil price shocks

do recessions permanently change output abstract this paper examines whether negative innovations to gnp are more or less persistent than positive innovations we find that once we allow for the impulse response of gnp to be asymmetric negative innovations to gnp are observed to be much less persistent than positive ones in particular the effect of a recession on the forecast of output is found to be negligible after only eight to twelve quarters while the effect of a positive shock is estimated to be persistent and amplified over time our results may therefore help reconcile two antagonistic views about the nature of business cycle fluctuations

are linear models really unuseful to describe business cycle data we use first differenced logged quarterly series for the gdp of 29 countries and the euro area to assess the need to use nonlinear models to describe business cycle dynamic behaviour our approach is model estimation free based on testing only we aim to maximize power to detect non linearities and simultaneously we purport avoiding the pitfalls of data mining the evidence we find does not support some descriptions because the presence of significant non linearities is observed for 2 3 of the countries only linear models cannot be simply dismissed as they are frequently useful contrarily to common knowledge nonlinear business cycle variation does not seem to be an universal undisputable and clearly dominant stylized fact this finding is particularly surprising for the u s case some support for nonlinear dynamics for some further countries is obtained indirectly through unit root tests but this is marginal to our study based on indirectmethods only and can hardly be invoked to support nonlinearity in classical business cycles

are there asymmetries of nonlinearities in uk output this paper investigates whether quarterly post war uk output growth contains either asymmetries or nonlinearities through subjecting the series to a variety of diagnostic testa and by fiting various nonlinear business cycle models no evidence is uncovered of any form of asymetric or nonlinear departure from the pure random walk with drift model of output

searching for a better proxy for business cycles with supports using us data this study revises the original current depth of recession cdr to prove that the modified cdr mcdr is more suitable as a threshold variable than the cdr we rebuild the cdr indicator and adjust its positive and negative ranges with the estimation results of the threshold autoregressive tar model we construct two tar models utilizing cdr and mcdr as threshold variables respectively estimation and test results of the root mean square error theil s inequality coefficient and the diebold mariano dm 1995 test suggest that mcdr performs better as a threshold variable than cdr

the dynamic relationship between permanent and transitory components of u s business cycles this paper investigates the dynamic relationship between permanent and transitory components of post war u s business cycles we specify a time series model for real gnp and consumption in which the two share a common stochastic trend and transitory component and markov regime switching is used to model business cycle phases in these components the timing of switches between business cycle phases is allowed to differ across the permanent and transitory components we find strong evidence of a lead lag relationship between the switches in the two components specifically switches in the permanent component leads switches in the transitory component when entering recessions

convergence in italian regional per capita gdp this paper addresses the issue of convergence of per capita gdp of the 20 italian regions the paper first focuses on the notion of convergence and proposes a new hierarchical clustering algorithm grouping regions according to the presence of a monotonically decreasing trend in entropy then alternative definitions of long run convergence are given based on the notion of cointegration and common trends and the evidence arising from application of stationarity tests to the time series of regional contrasts is examined the conclusion is that both kind of convergence can be used to characterize the dynamics of regional per capita gdp

inventories and the three phases of the business cycle this article demonstrates that recessions typically are followed by high growth recovery phases that push output back to its prerecession level thus postwar fluctuations in real output in the united states have consisted of three sequential phases rather than two contractions high growth recoveries and moderate growth periods following recoveries data from before world war ii also exhibit this pattern for the postwar period the three phase pattern is shown to reflect swings in inventory investment and suggests that output fluctuations have an important transitory component the evidence in this article supports delong and summers s output gaps view and friedman s plucking model view of fluctuations

price and advertising effectiveness over the business cycle abstract firms are under increasing pressure to justify their marketing expenditures this evolution toward greater accountability is reinforced in harsh economic times when marketing budgets are among the first to be reconsidered to make such decisions managers must know whether and to what extent marketing s effectiveness varies with the economic tide however surprisingly little research addresses this issue therefore the authors conduct a systematic investigation of the business cycle s impact on the effectiveness of two important marketing instruments price and advertising to do so they estimate time varying short and long term advertising and price elasticities for 150 brands across 36 consumer packaged goods categories using 18 years of monthly u k data from 1993 to 2010 the long term price sensitivity tends to decrease during economic expansions whereas long term advertising elasticities increase during contractions the long term own and cross price elasticities increase moreover

on the dynamic properties of asymmetric models of real gnp there is now a substantial body of evidence that suggests business cycles are asymmetric however the evidence has been accumulated using a wide array of statistical techniques and consequently is based on various definitions of asymmetry this paper examines several parametric models that have been used to study asymmetries in real gnp although these models capture asymmetries in very different ways their dynamic properties are remarkably similar

cyclical patterns in the variance of economic activity this article models the conditional mean and variance of real gross national product gnp and its components using asymmetric exponential generalized autoregressive conditional hetero scedasticity a model previously applied only to financial variables the results imply that the variance of real gnp is higher following negative innovations than positive innovations and that this asymmetry arises in the cyclically sensitive sectors further evidence links this asymmetry to the phase of the business cycle the conditional variance appears to be largest around business cycle troughs in addition shocks to the conditional variance of gnp and its components typically persist for long periods the evidence of asymmetry in conditional variance is robust to a variety of alternative specifications

the persistence of taiwan s output fluctuations an empirical study using innovation regime switching model in this article we examine the persistence nature of taiwan s aggregate output fluctuations by using the innovation regime switching irs model in which the effect of an innovation may be permanent or transitory depending on an unobservable state variable that follows a first order markov chain by applying the irs model to taiwan s real gdp data we find that during the 1961 to 2000 period 61 39 of the real output shocks are likely to have permanent transitory effects moreover the innovations in the officially identified expansion contraction are more likely to have a permanent transitory effect these results are similar to those found in many studies of us real output fluctuations e g beaudry and koop 1993 kim and nelson 1999 and kuan et al 2005 however we also find that taiwan s output dynamics have changed drastically ever since year 2000 in particular the shocks to real gdp have become more likely to have only transitory effect even during the period of post 2001 iv ex

the canadian macroeconomy and the yield curve an equilibrium based approach les auteurs elaborent et estiment un modele d equilibre general de la structure des taux d interet canadiens dans lequel la dynamique des principales variables macroeconomiques est representee sous une forme vectorielle autoregressive et reliee a celle de la structure des taux

threshold nonlinearities in output some international evidence the empirical adequacy of linear ar and nonlinear setar models of trend stationary and difference stationary representations of output for canada germany japan the uk and the us are appraised test results suggest the presence of linear model residual structure of some form for all series and nonlinearities of specifically threshold form in trend stationary data for canada germany japan and the us and difference stationary data for germany japan and the us with the exception of canada estimated threshold nonlinear models imply asymmetric dynamics are able to account for all nonlinear structure in the data on the basis of bds statistics and provide sizeable reductions in residual variance in several cases most notably for germany

markov switching models with evolving regime specific parameters are postwar booms or recessions all alike abstract in this paper we relax the assumption of constant regime specific mean growth rates in hamilton s 1989 two state markov switching model of the business cycle we introduce a random walk hierarchy prior for each regime specific mean growth rate and impose a cointegrating relationship between the mean growth rates in recessionary and expansionary periods by applying the proposed model to postwar u s real gdp growth 1947 q4 2011 q3 we uncover the evolving nature of the regime specific mean growth rates of real output in the u s business cycle additional features of the postwar u s business cycle that we uncover include a steady decline in the long run mean growth rate of real output over the postwar sample and an asymmetric error correction mechanism when the economy deviates from its long run equilibrium

non linear dynamics of electric power losses electricity consumption and gdp in jamaica abstract we examine the relationship between electric power losses electric power consumption and gdp in jamaica for the period 1971 to 2014 accounting for the non linear growth in gdp there are two key findings first there are cointegrating relationships between the energy variables and gdp in the long run a positive shock to electric power losses has a negative impact on gdp but one to electric power consumption has a positive impact that peters out over time second in the short run the growth in the energy variables granger cause gdp growth we discuss the implications of these findings

are the effects of monetary policy asymmetric huntley schaller by building on the hamilton 1989 markov switching model we examine questions like does monetary policy have the same effect in expansions and recessions given that the economy is currently in a recession does a fall in interest rates increase the probability of an expansion does monetary policy have an incremental effect on the growth rate within a given state or does it only affect the economy if it is sufficiently strong to induce a state change e g from recession to expansion as suggested by models with sticky prices or finance constraints interest rate changes have larger effects during recessions jel e52 e32 much of the recent work in macroeconomics has proceeded under the assumption that variables follow linear stochastic processes with constant coefficients as a result some of the richness of the burns mitchell analysis such as its focus on asymmetries between recessions and expansions may well have been lost blanchard and fischer 1989 7 i introduction for decades macroeconomists have debated whether monetary policy has the same effect on real output in expansions and recessions as far back as the 1930s keynes and pigou debated whether monetary policy would have less effect on output during a severe economic downturn in the 1960s there were active debates on a very different proposition namely whether the rightward portion of the aggregate supply curve was vertical so that monetary policy would have less effect on real output during expansions in this article we provide a new type of evidence on whether monetary policy has different effects depending on whether the economy is in an expansion or recession empirical evidence on this issue is particularly relevant in light of new theoretical work in macroeconomics that predicts asymmetric effects of demand shocks conditional on the state of the economy two examples of this work are s s type models of price adjustment and models in which there are agency costs of financial intermediation 1 the intuition for the latter class of models is simple 2 when there is information asymmetry in financial markets agents may behave as if they were constrained for a variety of reasons these finance constraints are more likely to bind during recessions when the net worth of agents is low an increase in interest rates will then have two effects on investment the standard effect of increasing the cost of capital and therefore reducing investment demand and an additional effect of reducing liquidity e g by increasing debt service obligations and thus reducing investment demand for constrained agents as a result monetary policy actions that change interest rates will have greater effects during a recession 3 the s s type price adjustment models of ball and mankiw 1994 caballero and engel 1992 and tsiddon 1993 lead to a convex aggregate supply curve and therefore also imply that monetary policy will have stronger effects during recessions one of the more frequently cited empirical papers on the potentially asymmetric effects of monetary policy is cover 1992 which finds evidence that positive monetary shocks have different effects from negative monetary shocks we are looking at a different type of asymmetry namely between booms and recessions we study asymmetries using an extension of the markov switching model developed by hamilton 1989 estimated over the period 1955 93 in hamilton s econometric specification the growth rate of output depends on a state variable that corresponds to an expansion or recession this approach has several advantages first unlike linear projections it allows for nonlinearities and asymmetries second in estimating the recession coefficients it gives greater relative weight to observations that most clearly correspond to recessions and similarly for the expansion coefficients

are health expenditures and gdp characterized by asymmetric behaviour evidence from 11 oecd countries in this article we examine whether per capita health expenditures and per capita gdp for 11 oecd countries can be characterized by asymmetric behaviour we achieve this goal by using the nonparametric triples test suggested by randles et al 1980 we examine two forms of asymmetries namely deepness and steepness our main finding is that for 6 out of 11 countries namely for the usa the uk japan spain finland and iceland either per capita health expenditures or per capita gdp are characterized by asymmetric behaviour this finding to some extent casts doubt on those studies that model the relationship between health and gdp using unit root and cointegration tests that assume symmetric disturbances

a nonlinear forecasting model of gdp growth we develop a model of gdp growth under which regime changes are triggered stochastically by an observable tension index constructed as the geometric sum of deviations of actual gdp growth from a corresponding sustainable rate within expansionary regimes the tension index tends to increase which heightens the probability of a regime change given a regime change the process becomes reversed and the tension index begins to decline along a newly established path linking the behavior of the tension index to gdp growth enables us to capture floor and ceiling effects

an empirical characterization of the dynamic effects of police spending on violent and property crime the study estimates the dynamic effects of shocks to police expenditures on measures of violent and property crime rates using annual u s state level data for the period 1960 2015 we employ a structural panel var model and achieve identification by imposing the restriction that police spending responds to structural shocks to crime with at least a lag of 1 year results indicate that a shock to police spending leads to a persistent and significant decreases in violent and property crime rates and b significant and persistent negative impacts on crime rates in periods of high crime but little impacts in periods of low crime variance decompositions show that shocks to police spending account for moderate to large proportions of the variability of u s state level crime rates our findings are robust across separate measures of violent and property crime rates as well as to the inclusion of additional variables to the baseline panel var model jel k42

threshold nonlinearities and asymmetric endogenous business cycles abstract this paper presents a model of endogenous business cycles in the presence of knowledge spillovers and a time to build restriction there are two key assumptions that characterize the model i the payoff to each firm depends on the aggregate state of knowledge and ii the innovation of a project is time consuming under those assumptions a simple structure is shown to be described by a piecewise linear difference equation with a discontinuity we show that the resulting dynamics generated by such a dynamical system leads to an asymmetric periodic cycle of arbitrary period that appears to switch repeatedly between different regimes

let s take a break trends and cycles in us real gdp abstract trend cycle decompositions for us real gdp such as the unobserved components models the beveridge nelson decomposition the hodrick prescott filter and others yield very different cycles which bear little resemblance to the nber chronology ascribes much movements to the trend leaving little to the cycle and some imply a negative correlation between the noise to the cycle and the trend we argue that these features are artifacts created by the neglect of a change in the slope of the trend function once this is accounted for all methods yield the same cycle with a trend that is non stochastic except for a few periods around 1973 the cycle is more important in magnitude than previously reported and it accords well with the nber chronology our results are corroborated using an alternative trend cycle decomposition based on a generalized unobserved components models with errors having a mixture of normals distribution for both the slope of the trend function and the cyclical component

a new approach to the study of jobless recoveries this article is concerned with the measurement of jobless recoveries and the elements that may explain their emergence we first introduce a measure that maps the various elements that define a jobless recovery into a single number that we label the jobless recovery depth we then construct a database of 389 state level observations and study the cross sectional variations that emerge we find that jobless recoveries in the united states are not a nation wide phenomena but a local event confined within a cluster of states that expands slowly between 1975 and 2015 we find the state level evidence to be consistent with theories that link jobless recoveries to unusually long expansionary periods less dynamic labor markets and the advent of the great moderation the evidence is not consistent with theories that link them to decreases in union power increases in income inequality or increases in health care costs

fiscal multipliers in recessions standard business cycle models have difficulties generating large state dependent fiscal multipliers employing a model of costly financial intermediation based on curdia woodford we show that fiscal multipliers can be strongly state dependent fiscal expansions during recessions may lead to multiplier values exceeding two while similar expansions during economic booms would produce values falling short of unity this pattern obtains if the spread the financial friction is more sensitive to fiscal policy during recessions than during expansions a feature that is present in the data our results are consistent with recent empirical work documenting the state contingency of multipliers

a nonparametric investigation of duration dependence in the american business cycle does the termination probability of a business expansion or contraction increase with age this question may be formally addressed by analyzing the nature of duration dependence in aggregate economic activity our null hypothesis is that there is no duration dependence which we test via intentionally nonparametric procedures we also argue that common notion of business cycle periodicity can be usefully interpreted in terms of whole cycle duration dependence we find some evidence for duration dependence in whole cycles and in prewar expansions but little evidence elsewhere

can non linear time series models generate us business cycle asymmetric shape abstract fifteen univariate non linear time series models of us output are evaluated by their ability to reproduce the asymmetric shape of the us business cycle two models account for the growth being faster after a trough and slower before a peak

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

nonlinear business cycle dynamics cross country evidence on the persistence of aggregate shocks i introduction economists have long been interested in the dynamics of business cycles particularly regarding the symmetry of expansions and contractions more recently the specification of stochastic trends in economic growth has generated concerns about the relative persistence of positive and negative shocks to the economy several papers have looked at the persistence of business cycles including nelson and plosser 1982 campbell and mankiw 1987 cochrane 1988 diebold and rudebusch 1989 balke and fomby 1990 zelhorst and de haan 1994 and bradley and jansen 1995 while results vary especially on the issue of a unit root in output the overarching result is that output fluctuations are highly persistent one question not asked by the above authors is whether business cycle dynamics are asymmetric this issue has been investigated by neftci 1984 falk 1986 delong and summers 1986 hamilton 1989 diebold and rudebusch 1990 and terasvirta and anderson 1991 these authors take a variety of approaches but they reach a general conclusion that there is some evidence of asymmetric business cycle dynamics however most of these studies ask if contractions are shorter and steeper than expansions except hamilton 1989 they do not ask if there is a difference in persistence due to the asymmetries in a recent paper beaudry and koop 1993 propose a set of methods for simultaneously examining these two questions specifically beaudry and koop bk recommend the augmentation of the standard arma representation of real output growth through the inclusion of a nonlinear term that captures the relative state of the economy this augmentation provides for nonlinear dynamics and the possibility of asymmetric dynamic responses to positive and negative shocks in addition calculation of the implied impulse responses permits detection of the relative persistence implied by the combination of asymmetric cycle dynamics and stochastic trend based upon their analysis of u s data bk conclude that the response of the economy to positive and negative shocks is indeed asymmetric and the imposition of symmetry on impulse responses has likely led to misleading measures of persistence bk p 162 as a result bk conclude we find that the effects of negative shocks to be mainly temporary and the effects of positive shocks to be very persistent bk p 162 if bk s results are correct they have strong implications for the way macro economists view economic fluctuations and will in their words contribute to a reappraisal of some macroeconomic theories that is bk s results suggest that macroeconomic models must be revised to provide for temporary effects of negative shocks but permanent effects of positive shocks because of the potential importance of bk s results we examine the robustness of those results by modifying and extending bk s proposed methods of testing not only do we extend the analysis to the other six g7 countries besides the united states but also we redefine in a sensible way the nature of the nonlinear dynamics overall our results from other economies provide only mixed support for the asymmetry of cyclical dynamics and the lack of persistence of negative shocks ii the model to be estimated in the bk framework the estimated model includes an asymmetric response term the asymmetry is generated by a variable that measures the strength of a recession the variable is calculated as the distance between current real gdp and the previous peak level of real gdp that is bk define a measure they call current depth of the recession cdr where 1 cdr sub t max y sub t j sub j greater than or equal to 0 y sub t with this definition in place bk recommend augmenting an autoregressive model of real gdp growth as 2 phi l delta y sub t delta omega l 1 cdr sub

nonlinearity and the permanent effects of recessions this paper presents a new nonlinear time series model that captures a post recession bounce back in the level of aggregate output while a number of studies have examined this type of business cycle asymmetry using recession based dummy variables and threshold models we relate the bounce back effect to an endogenously estimated unobservable markov switching state variable when the model is applied to us real gdp we find that the markov switching regimes are closely related to nber dated recessions and expansions also the markov switching form of nonlinearity is statistically significant and the bounce back effect is large implying that the permanent effects of recessions are small meanwhile having accounted for the bounce back effect we find little or no remaining serial correlation in the data suggesting that our model is sufficient to capture the defining features of us business cycle dynamics when the model is applied to other countries we find larger permanent effects of recessions copyright 2005 john wiley sons ltd

a monte carlo study of the forecasting performance of empirical setar models in this paper we investigate the multi period forecast performance of a number of empirical selfexciting threshold autoregressive setar models that have been proposed in the literature for modelling exchange rates and gnp amongst other variables we take each of the empirical setar models in turn as the dgp to ensure that the non linearity characterises the future and compare the forecast performance of setar and linear autoregressive models on a number of quantitative and qualitative criteria our results indicate that non linear models have an edge in certain states of nature but not in others and that this can be highlighted by evaluating forecasts conditional upon the regime

restricted structural change and the unit root hypothesis i introduction an important issue in economics involves the long run response of macroeconomic and financial aggregates to shocks and disturbances in a classic paper nelson and plosser 1982 argued that contrary to the traditional view current shocks have permanent effects on the long run level of macroeconomic time series using statistical techniques developed by dickey and fuller 1979 they found evidence in favor of unit roots for 13 out of 14 long term annual macro series the only exception being the unemployment rate they conclude that these series behave more like a random walk than like transitory deviations from a steadily growing trend 1 nelson and plosser s findings of a unit root have been called into question on a number of grounds rudebusch 1992 1993 demonstrates that unit root tests have low power against estimated trend stationary alternatives moreover he shows that if trend stationary models are correct difference stationary models do not yield good approximations to the medium term dynamic response perron 1989 questions the ability of unit root tests to distinguish unit root from stationary processes that contain segmented or shifted trends incorporating an exogenous break point and specifying 1929 as the break date he found evidence of broken trend stationarity for 10 out of the 13 series perron s analysis was disputed by several papers most notably christiano 1992 banerjee lumsdaine and stock 1992 and zivot and andrews 1992 these authors argued that it is inappropriate to specify the break date as known as it is not reasonable to believe that the choice has been made independently of the data 2 they suggest that an appropriate procedure is to select the break date endogenously in particular zivot and andrews 1992 using a data dependent algorithm to determine the break point and finite sample critical values reject the unit root null at the 5 significance level for only 3 out of 13 nelson plosser series real gross national product gnp nominal gnp and industrial production 3 once this is done there is again little evidence against the unit root hypothesis allowing for two endogenous breaks lumsdaine and papell 1997 reexamined the unit root hypothesis for the nelson plosser data using finite sample critical values they rejected the unit root null for five series the three series found by zivot and andrews plus per capita real gnp and employment therefore finding more evidence against unit roots than zivot and andrews these studies reject the unit root hypothesis in favor of broken trend stationarity for macroeconomic aggregates but not for prices or financial variables this seems to confirm not only the common practice of macroeconomists to model movements in real gnp as stationary fluctuations around a linear deterministic trend blanchard 1981 kydland and prescott 1980 but also previous analyses which had advanced the unit root hypothesis for the velocity of money gould and nelson 1974 and stock prices samuelson 1973 results of the previous studies show that for many of the aggregate time series the estimated breaks coincide with world wars or the great depression standard macroeconomic theory however argues that while these events have long lasting transitory effects they do not have permanent effects on aggregate variables the decline in output associated with the great depression has generally been interpreted as a temporary response to a significant reduction in the money stock friedman and schwartz 1963 and the substantial increase in output that occurred during world war ii is described as the result of the huge temporary increase in government purchases caused by the war barro 1981 murray and nelson 2000 studying long term real gross domestic product gdp data argued that the fluctuations of 1930 1946 seem to have had a temporary effect on the level of output and lead to rejections of the unit root hypothesis when it is true

animal spirits through creative destruction we show how a schumpeterian process of creative destruction can induce rational herd behavior by entrepreneurs across diverse sectors as if fueled by animal spirits consequently a multisector economy in which productivity improvements are made by independent profit seeking entrepreneurs exhibits regular booms slowdowns and downturns as part of the long run growth process our cyclical equilibrium has higher average growth but lower welfare than the corresponding acyclical one we show how a negative relationship can emerge between volatility and growth across cycling economies and assess the extent to which our model matches several features of actual business cycles