Demand shocks and economic fluctuations

This paper studies conditions under which demand-side shocks can generate realistic business cycles in RBC models. Although highly persistent demand shocks are necessary for generating procyclical investment, variable capacity utilization and habit formation can reduce the required degree of persistence.     

Learning and international transmission of shocks

This paper studies the implications of adaptive learning in the modelling of inter-country linkages in a two-region MSG G-cubed model built on micro-founded behaviors of firms and households. The nature of the transmission process under rational expectations versus adaptive learning is explored. We investigate the propagation mechanism within and across borders for various shocks and policy changes within the United States: change in inflation target, fiscal policy, productivity shock, and rise in equity risk. Adaptive learning is found to change the short run sign of transmission in most cases but this also depends on the fraction of forward-looking agents in the economy.     

Fiscal shocks, output dynamics and macroeconomic stability: an empirical assessment for Austria (1983–2002)

We investigate the dynamic effects of discretionary fiscal policy in Austria over the period 1983:1 to 2002:4. A structural vector autoregressive (VAR) analysis, using the identification strategy suggested by Blanchard and Perotti (2002, Q J Econ 117(4):1329–1368), suggests that tax shocks have a negative effect on output, consumption, and investment. Spending shocks have a positive effect but are crowded out to a large extent after a few years. We then estimate ARCH models for output growth and inflation with the fiscal shocks included as explanatory variable in the variance equation. In line with recent cross-country studies there is evidence for a destabilizing role of discretionary fiscal policy.     

Capacity utilization and technology shocks in the US manufacturing sector

The ability of real business cycle models to generate reasonable aggregate fluctuations depends on the time series properties of technology shocks measured by the change of total factor productivity. Three specifications of a non‐parametric productivity analysis which correct to different degrees for variations of capacity utilization are compared in this article using data for three‐ and four‐digit US manufacturing industries during the years 1958–1996. The results show that correcting for utilization generally leads to substantially smaller technology shocks that are less strongly correlated with growth of output and hours. Moreover, the probability of technological regress is considerably lower after the correction.     

The macroeconomic impact of financial and uncertainty shocks

The extraordinary events surrounding the Great Recession have cast a considerable doubt on the traditional sources of macroeconomic instability. In their place, economists have singled out financial and uncertainty shocks as potentially important drivers of economic fluctuations. Empirically distinguishing between these two types of shocks, however, is difficult because increases in economic uncertainty are strongly associated with a widening of credit spreads, an indication of a tightening in financial conditions. This paper uses the penalty function approach within the SVAR framework to examine the interaction between financial conditions and economic uncertainty and to trace out the impact of these two types of shocks on the economy. The results indicate that (1) financial shocks have a significant adverse effect on economic outcomes and that such shocks were an important source of cyclical fluctuations since the mid-1980s; (2) uncertainty shocks, especially those implied by uncertainty proxies that do not rely on financial asset prices, are also an important source of macroeconomic disturbances; and (3) uncertainty shocks have an especially negative economic impact in situations where they elicit a concomitant tightening of financial conditions. Evidence suggests that the Great Recession was likely an acute manifestation of the toxic interaction between uncertainty and financial shocks.     

Monetary policy shocks and productivity measures in the G-7 countries

An implication of two-country international real business cycle models is that total factor productivity should be an exogenous stochastic process. Economic theories which feature labor hoarding, variable capacity utilization, and increasing returns predict that measured productivity shifts are not exogenous; instead, expansionary aggregate demand shocks should lead to an increase in measured productivity. For each of the G-7 countries, this paper measures quarterly aggregate total factor productivity for the domestic country and its rest-of-world (G-6) counterpart. In each case the domestic productivity measures are not strictly exogenous: expansionary U.S. monetary policy shocks, as well as other G-6 monetary policy shocks, lead to productivity expansions. The evidence indicates that international business cycle models are misspecified unless they feature endogenous productivity mechanisms.Received: June 2001, Accepted: December 2001, JEL Classification: E5, F4Correspondence to: Charles L. EvansFor their helpful comments, we thank Mario Crucini, Patricia Reynolds, and Steve Strongin. The views expressed in this paper do not necessarily reflect the views of the Federal Reserve Bank of Chicago or the Federal Reserve System.     

Oil income shocks and economic growth in Iran

The aim of this paper is to study the relationship between oil revenue shocks and output growth in Iran by Adopting an SVAR model over the period 1959–2008. The results indicate that positive and negative oil revenue shocks significantly affect output growth positively and negatively respectively and these effects are asymmetric. While negative oil revenue shocks adversely affect the economic growth, the resource curse impedes the expected positive effects of positive oil shocks. In order to overcome the harmful effects of oil booms and busts, the establishment of oil stabilization and saving funds, diversifying economy, delinking government expenditure from oil revenues and introducing fiscal rules into the budget seems crucial for Iran economy.     

Firm dynamics in news-driven business cycles: the role of endogenous survival rate

Evidences from the structural vector-error correction model shows that the new business formation and stock prices co-moves with output under news shocks. However, simply incorporating firm dynamics into Jaimovich and Rebelo’s (Jaimovich and Rebelo, 2009) model cannot explain these empirical findings. We show that this problem can be resolved by introducing endogenous survival rates for the new entrants.     

Using Romer and Romer's new measure of monetary policy shocks to identify the AD and AS shocks

This article re-examines the series of (exogenous) Federal Funds Rate (FFR) shocks created by Romer and Romer (2004) for the period 1969:01–1996:12. We hypothesize that if Romer and Romer have constructed a reasonable set of monetary policy shocks, then including them in a small Vector Autoregression (VAR) should help to identify other structural shocks that affected the United States economy during their sample period. Using a sample period of 1971:01–1996:12 we are easily able to identify both an Aggregate Demand (AD) shock and an Aggregate Supply (AS) shock without imposing any sign or long-run restrictions. We present historical decompositions that allow us to compare the relative importance of these shocks with that of the exogenous monetary policy shocks in explaining output fluctuations during the 1973–1975, 1980–1984 and 1990–1991 business cycle episodes.     

Credit demand and supply shocks in Italy during the Great Recession

In this article, we use Structural VAR analysis to disentangle credit demand and supply shocks and their effect on real economic activity in Italy during the 2008 to 2014 crisis period. The three endogenous variables considered are the loan interest rate, the loans growth rate and the employment to population ratio. The data are observed at annual frequency for each of 103 Italian provinces. The empirical evidence suggests that the variance of the shocks varies across four Italian macro-regions: North, Centre, South and Islands, and hece heteroscedasticity is used to identify (ex ante) the structural shocks. Sign restrictions are used to interpret shocks ex post. The empirical findings suggest a prominent role of credit supply shock in shaping real activity dynamics and also that credit crunch hits the North of Italy less than the remaining macro-regions, especially the South of Italy.     

On the temporary and permanent components of global construction

This letter applies unobserved components models to decompose global construction series. By examining the temporary and permanent trends in a structural time-series framework, the uninterpretable difficulties inherent in bandpass filters are overcome and the trend–cycle decomposition of the construction series is treated as a special case. Overall global construction mimic patterns in the global economy: falling with recessions and rising with upturns. Understanding the cyclical behaviour of global construction output and its long run trend holds important lessons for smoothing the construction cycle.     

Different compositions of aggregate sentiment and their impact on macroeconomic stability

In recent times a number of agent-based models have been put forward that specify an aggregate sentiment as the difference between optimists and pessimists and let the agents endogenously switch between the two attitudes. The present paper extends this stylized framework by adding a third category, which may be viewed as neutrality. On this basis it then formulates a dynamic three-dimensional Goodwinian model with a special focus on multiple long-run equilibrium positions, which may emerge from just one and very natural nonlinearity in the switching process. The equilibria exhibit the same difference between optimists and pessimists and thus give rise to the same aggregate rate of growth, so that they cannot be distinguished at the macroeconomic level. The feature in which they nevertheless differ is the share of neutral agents. Remarkably, this affects stability. In particular, the trajectories may converge to one of two locally stable equilibrium points, or alternatively to a uniquely determined limit cycle. Coexistence of these attractors is absent in a two-state sentiment dynamics. Generally, the results may also be of interest to empirical business cycle research.     

Asymmetric impact of relative price shocks in presence of trend inflation

This study examines whether skewness of cross-sectional distribution of relative price shocks has asymmetric impact on aggregate inflation. The empirical evidence from major economies suggests that the positively skewed shocks have different impact from that of negatively skewed shocks on aggregate inflation. In particular, the empirical results indicate that this asymmetry in the impact of relative price shocks mainly depends on the nature of trend that inflation exhibits for a given period. The crucial inference that emerges from the empirical findings is that the traditional approach of using a simple linear regression model, to examine the relationship between inflation and skewness in presence of trend inflation, is not appropriate as it may lead to misleading conclusions.     

Uncertainty shocks and asymmetric dynamics in Korea: a non-linear approach

This study investigates the impact of uncertainty shocks on macroeconomic activity in Korea. For this purpose, a Smooth Transition VAR model is employed to document the state-dependent dynamics of two distinct types of uncertainty shocks, namely, financial market based and news-based. When non-linearity is allowed to play a role in our model, quantitatively very different asymmetric dynamics are observed. Following inflation targeting, the responses tend to be smoother and less pronounced. Our empirical results support the view that the link between uncertainty and macroeconomic activity is clear over both recessions and expansions. Furthermore, the impact of uncertainty shocks is more pronounced when economic activity is depressed especially after shocks originate from the financial market, and not from news-based policy uncertainty in Korea.     

我国供给和需求冲击的区域差异效应研究——基于结构VAR的分析

本文根据Blanchard and Quah发展的结构VAR技术,将影响中国沿海和内陆地区实际GDP与通货膨胀率的冲击分解为供给和需求冲击。估算结果发现,沿海和内陆地区供给冲击的同步性较高但呈下降趋势,需求冲击的同步性弱于供给冲击,不过呈提高趋势,但由于区域协调而降低了其短期内的同步性。根据累积脉冲响应函数和预测误差方差分解结果,实际GDP和价格水平波动的绝大部分分别来自于供给和需求冲击,需求层面的区域协调对缩小区域差距无济于事,反而引致内陆地区的价格波动。各地区对供给和需求冲击反应的差异,使得在宏观调控和区域协调方面产生效率和区域平等、需求管理型宏观政策有效性和区域平等的两难困境。破解之道在于从影响区域反应差异的因素入手,提高内陆地区实际产出对内陆地区正向供给、需求冲击的反应强度和降低沿海需求冲击对内陆地区的负效应。     

The role of international reserves holding in buffering external shocks

An extended literature analyses the accumulation foreign exchange holding observed in many developing and emerging countries since the 2000s. Empirical studies on the self-insurance motive suggest that high-reserves economies are more resilient to financial crises and to international capital inflows volatility. They show also that pre-crisis foreign reserve accumulation explains post-crisis growth. However, some papers suggest that the relationship between international reserves holding and reduced vulnerability is nonlinear, meaning that reserve holding is subject to diminishing returns. This article devotes more attention to the potential nonlinear relationship between the foreign reserves holding and macroeconomic resilience to shocks. For a sample of nine emerging economies, we assess to what extent the accumulation of international reserves allows to mitigate negative impacts of external shocks on the output gap. While a major part of the literature focuses on the global financial crisis, we investigate this question by considering two sub-periods: 1995–2003 and 2004–2013. We implement threshold VAR model in which the structure is allow to change if the threshold variable crosses a certain estimated threshold. We find that the effectiveness of reserve holding to improve the resilience of domestic economies to shocks has increased over time. Hence, the diminishing returns of foreign reserve holding stressed in the previous literature must be qualified.     

Permanent and transitory shocks in the presence of asymmetric error correction

This article highlights the potential importance of asymmetries in the loading vector of a set of cointegrated variables for the construction, analysis and interpretation of permanent and transitory shocks using impulse response functions. We derive an asymmetric version of the Permanent–Transitory decomposition suggested by Gonzalo and Ng (2001) and illustrate the potential importance of such asymmetries using the ‘cay’ data of Lettau and Ludvigson (2004).     

Entry, exit and business cycles in a general equilibrium model

This paper studies the role of entry and exit in the short run behavior of a general equilibrium model with industry dynamics. For tractability, and to preserve potential asymmetries in the impulse responses, I focus on the transition dynamics of the economy after shocks. Entry and exit are found to be insensitive to productivity shocks of reasonable magnitude. Moreover, the dynamics of GDP are insensitive to fluctuations in entry and exit rates, and any asymmetries are negligible. As an application of the model, the paper also asks whether firing costs may interact with entry and exit to affect transition dynamics after shocks, finding that they do not.     

The dynamic effects of monetary policy and government spending shocks on unemployment in the peripheral Euro area countries

In this paper we study the response of unemployment to monetary policy and government spending shocks in the peripheral Euro-area countries. By applying the structural near-VAR methodology, we jointly model area-wide and national variables. Our main finding is that fiscal multipliers vary across countries and the results are consistent with the prediction of the standard New Keynesian model only in Italy and Greece. Instead, in Ireland, Portugal and Spain increases in government spending are recessionary. Thus we find that Keynesian results of fiscal policy seem to prevail in high public-debt countries, whereas non-Keynesian outcomes seem to characterize high private-debt countries. As for the monetary policy shock, we find that it plays an important role, jointly with the other area-wide shocks, as a long-term driver of national unemployment.