Nominal Wage Flexibility and Economic Performance: Evidence and Implications Across Industrial Countries

By considering the theoretical connection between labour and product markets, the paper evaluates the economic relationship of these markets within the contractual wage rigidity New Keynesian explanation of business cycles. The empirical analysis focuses on the short‐run cyclical behaviour of real output, prices and wages for 19 industrial countries. Time‐series and cross‐sectional regressions are estimated. Cross‐sectional cyclical correlations in the labour and goods markets are also evaluated across countries. Consistent with the theoretical predictions, aggregate uncertainty is an important factor in increasing the flexibility of the nominal wage in response to aggregate demand shocks. Wage flexibility accelerates price inflation and moderates the response of real output growth to aggregate demand shocks. Wage flexibility does not appear to be an important factor in differentiating the real and inflationary effects of energy price shocks across countries. Finally, aggregate uncertainty increases the responsiveness of output and price to productivity shocks.     

On the permanent effect of an aggregate demand shock: Evidence from the G-7 countries

This paper extends the work of Cover, Enders and Hueng (2006) to examine the idea that an aggregate demand shock may have permanent effect on the output level by indirectly shifting the aggregate supply curve. We utilize the bivariate SVAR modeling and adopt an identification scheme, which allows for the possibility that a shift in the aggregate demand curve may induce the long-run aggregate supply curve to shift. We have shown that aggregate supply shocks are positively affected by the demand shocks in each of the G-7 countries. It is found that a one-time positive aggregate demand shock increases the output level permanently in these industrialized economies. We have also shown that our decomposition strategy can help resolve anomalies in the responses of inflation to a positive aggregate supply shock observed in a simple Blanchard-Quah decomposition.     

Analysing the effects of fiscal policy shocks in the South African economy

This paper is the first one to analyse the effect of aggregate government spending and taxes on output for South Africa using three types of a calibrated DSGE model and more data driven models such as a structural vector error correction model (SVECM) and a time-varying parameter VAR (TVP-VAR) to capture possible asymmetries and time variation of fiscal impulses. The impulse responses indicate first, that increases in government expenditure have a positive impact, albeit (at times) less than unity, on GDP in the short run; second, over the long run, the impact of government expenditure on GDP is insignificant; and third, increases in taxes decrease GDP over the short run, while having negligible effects over longer horizons.     

Aggregate labor market fluctuations under news shocks

The standard RBC model fails to replicate the relationship between aggregate hours worked and average productivity. We propose a DSGE model that incorporates habit formation preferences, capital adjustment costs, and news shocks to solve the puzzle implied in the standard RBC model with only technological shocks. The aggregate labor supply curve is shifted due to the wealth effect caused by the variation of consumption under a news shock. Moreover, capital adjustment costs help amplify the variation of consumption, and thus the movement of the aggregate labor supply curve under the news shock. Also, the aggregate demand curve will be shifted, as it operates in the standard RBC model after the realization of the news shock. As a result of the joint movement of the aggregate labor supply curve and aggregate labor demand curve under the news shock, the model achieves a relationship quite close to the empirically observed relationship.     

Labor Market Dynamics and the Business Cycle: Structural Evidence for the United States*

We use a 12‐dimensional VAR to examine the aggregate effects of two structural technology shocks and two policy shocks. For each shock, we examine the dynamic effects on the labor market, the importance of the shock for labor market volatility, and the comovement between labor market variables and other key aggregate variables in response to the shock. We document that labor market indicators display “hump‐shaped” responses to the identified shocks. Technology shocks and monetary policy shocks are important for labor market volatility but the ranking of their importance is sensitive to the VAR specification. The conditional correlations at business cycle frequencies are similar in response to the four shocks, apart from the correlations between hours worked, labor productivity and real wages. To account for the unconditional correlations between these variables, a mixture of shocks is required.     

Data uncertainty and the role of money as an information variable for monetary policy

In this study, we perform a quantitative assessment of the role of money as an indicator variable for monetary policy in the euro area. We document the magnitude of revisions to euro area-wide data on output, prices, and money, and find that monetary aggregates have a potentially significant role in providing information about current real output. We then proceed to analyze the information content of money in a forward-looking model in which monetary policy is optimally determined subject to incomplete information about the true state of the economy. We show that monetary aggregates may have substantial information content in an environment with high variability of output measurement errors, low variability of money demand shocks, and a strong contemporaneous linkage between money demand and real output. As a practical matter, however, we conclude that money has fairly limited information content as an indicator of contemporaneous aggregate demand in the euro area.     

Macroeconomic dynamics in Macedonia and Slovakia: Structural estimation and comparison

This paper estimates a structural macroeconomic model using data for Macedonia and Slovakia to characterize possible challenges Macedonia can face concerning macroeconomic stabilization during its transition process. A comparison of the estimated model parameters suggests that, in Slovakia, the output gap is less sensitive to real interest rate movements and prices experience greater inertia. The estimated monetary policy reaction functions show Macedonia and Slovakia as inflation targeters, with Macedonia as the more conservative one, despite its officially applied exchange rate targeting regime. The differences in the estimated parameters imply differing transmission mechanisms for Macedonia and Slovakia. Consequently, the variance of domestic variables in Slovakia is most influenced by monetary policy shocks, while there is no single dominating shock explaining the volatility of Macedonia's macroeconomic variables. The exchange rate shock, the monetary policy shock and the demand shock are jointly important in determining the volatility of Macedonia's variables. The model simulations indicate that Macedonia experiences lower output gap and inflation volatility than Slovakia. This comes, nevertheless, at the cost of higher interest rate and real exchange rate volatility in Macedonia, which could be an indication of more volatile financial markets with possible negative implications for financial stability.     

Identifying terms of trade shocks in a developing country using a sign restrictions approach

Using annual data for Botswana from 1960 to 2012, we examine the responses of macroeconomic variables to four generalized positive terms of trade shocks – global demand, globalizing, sector-specific and global supply. A sign-restricted structural vector autoregression model with a penalty function is estimated to identify the four possible shocks. While positive global demand and globalization shocks are both expansionary, they have opposite effects on inflation. A positive commodity market specific shock dampens real GDP growth and is inflationary, suggesting a possible Dutch disease response. A negative global supply shock suppresses both output growth and inflation. All but the last shock leads to a significant declining interest rate. Monetary policy contraction is recommended for the first shock and expansion for the others.     

总需求和总供给冲击对我国失业和产出动态关系的影响分析

在我国的失业产出关系中,短期内,总供给冲击是产出波动的主要来源,总需求冲击则是失业波动的主要来源,总需求冲击和总供给冲击共同破坏了产出失业之间反向变化关系,但是总需求冲击的破坏作用更多一些。在长期,总需求冲击对产出没有影响,总供给冲击对产出有显著的正的影响,总需求冲击在长期对失业没有影响,但总供给冲击在长期会对失业产生不利影响,即正的供给冲击的累积影响所带来的产出增加在长期使我国的失业率上升。     

Macroeconomic fluctuations: Demand or supply, permanent or temporary?

We use generalized method of moments to estimate a rational expectations aggregate demand/aggregate supply macroeconomic model for five European economies and the United States. Our aim is to examine whether supply or demand shocks have predominated in these economies during the post-war era, and whether shocks of either type have been primarily temporary or permanent in nature. We find that permanent or temporary demand shocks have been the dominant source of variance in output growth in all six countries, but there is a less consistent pattern for inflation. Permanent supply shocks had the dominant influence on autocorrelations.     

Unemployment compensation and aggregate fluctuations

This paper focuses on a theoretical and empirical analysis of the effects of discretionary changes of unemployment compensation payments on aggregate fluctuations. By means of a dynamic stochastic general equilibrium model, it is shown that unemployment compensation can stabilize consumption on the one hand; however, on the other one, it has adverse effects on unemployment and output. These theoretical results are confirmed by the empirical structural vector autoregressive model. Moreover, the results highlight the importance of real wages in transmitting unemployment benefit shocks on to the macroeconomy. In particular, discretionary changes lead to an increase in real wages, unemployment and consumption while inducing a small decline in output.     

Real and nominal effects of monetary policy shocks

Abstract.  We employ the identification scheme of Kahn, Kandel and Sarig (2002) to analyse the impact of Canadian monetary policy on ex ante real interest rates and inflationary expectations. First, we decompose nominal interest rates into ex ante real rates and inflationary expectations using the methodology of Blanchard and Quah (1989) . Then we estimate a recursive VAR model with innovations in a monetary aggregate and the overnight target interest rate as alternative measures of monetary policy shocks. We find that a negative policy shock raises both nominal and ex ante real interest rates, lowers inflationary expectations and real industrial output, and appreciates the Canadian dollar.     

Cyclical wage movements in emerging markets compared to developed economies: The role of interest rates

This paper documents that, at the aggregate level, (i) real wages are positively correlated with output and, on average, lag output by about one quarter in emerging markets, while there are no systematic patterns in developed economies, and (ii) real wage volatility (relative to output volatility) is about twice as high in emerging markets compared with developed economies. We then present a small open economy model with productivity shocks and countercyclical interest rates. The model incorporates a working capital requirement and the Jaimovich and Rebelo (2009) preference that allows for flexible parameterization of the strength of income effects on labor supply. The model can account for the high volatility of wage and consumption relative to output and countercyclical trade balances that characterize emerging-market economies. During economic downturns, rising interest rates in emerging markets induce relatively large income effects on labor supply, so households would not reduce their labor input as much even though wages drop significantly.     

Oil Prices, Terms of Trade Shocks, and Macroeconomic Fluctuations in Saudi Arabia

The article investigates the sources of macroeconomic fluctuations in Saudi Arabia using structural vector autoregression methods and pays particular attention to oil prices and changes in terms of trade. Using a macroeconomic model tailored to the Saudi Arabian economy, the authors identify terms of trade, supply, balance of payments, aggregate demand, and monetary shocks. The results show that the Saudi Arabian price level, real exchange rate, and to a lesser extent output is vulnerable to terms of trade shocks. Moreover, Saudi Arabian terms of trade are driven by output, trade balance, and aggregate demand shocks. To stabilize output and the real exchange rate, Saudi Arabia ought to continue diversifying its production base and aim for a stable nominal oil price. (JEL E32 , Q43 , C22 )     

Variability in the effects of uncertainty shocks: New stylized facts from OECD countries

This study examines variability in the effects of uncertainty shocks using a panel of international data. It first evaluates variability in the effects of uncertainty shocks by applying rolling sample and time-varying parameter Vector Autoregression models to US data covering the past 70 years. The results reveal that the effects of uncertainty shocks on the US economy have changed substantially over time. First, the negative effect of uncertainty shocks on the output decreased until the recent period, in which monetary policy rules are constrained by the zero lower bound. Second, contrary to the negative aggregate demand interpretation in the recent literature, uncertainty shocks acted as a negative aggregate supply shock in the earlier periods. From the past 50 years’ data for 12 small open economies, I find that the negative effect of uncertainty shocks on output has increased, contrary to the US case. Additionally, the exchange rate and inflation responses are heterogeneous across countries, and the country’s commodity exporter or safe haven status is critical in determining the sign of these responses. Finally, the increased vulnerability of small open economies to uncertainty shocks is associated with an increase in international trade.     

A business cycle model with variable capacity utilization and demand disturbances

We develop a dynamic general-equilibrium model with demand (preference) shocks, estimated using Hall's (J. Labour Economics 15 (1997) 223) residual, that replicates U.S. business cycles well, at least compared to the real business cycle models. The key factor is cyclical capital utilization, which is based on imperfect competition, slow adjustments in capital stock, and fixed requirement of labor input. We also demonstrate theoretically that a representative-agent economy with preference shocks could be viewed as the reduced form of a heterogeneous-agents economy with incomplete markets. Specifically, a heterogeneous-agents economy with incomplete markets is aggregated into a representative-agent economy with preference shocks. This result would provide a microeconomic foundation for preference shock models. It is also shown that a shock to marginal utility of consumption and a shock to marginal disutility of labor have different effects.     

How does population aging affect the effectiveness of fiscal stimulus over the business cycle?

What is the impact of population aging on the effectiveness of fiscal stimulus over the business cycle? We address this question by estimating state-dependent fiscal multipliers in member countries of the Organisation for Economic Co-operation and Development (OECD). A government spending shock is identified as a forecast error of government spending and its output effect is estimated by using the local projection method. We find that there is no effect of population aging on output effects of fiscal spending shocks in expansionary times, whereas in recessions the output effects of fiscal spending shocks are weakened as population ages. This result points to important policy implications in that population aging would call for a larger fiscal stimulus to support aggregate demand during recession. Thus, this requires a larger fiscal space to allow for a wider swing of the fiscal position without creating concerns for fiscal sustainability.     

Imperfect competition and indeterminacy of aggregate output

This paper shows imperfect competition can lead to indeterminacy in aggregate output in a standard DSGE model with imperfect competition. Indeterminacy arises in the model from the composition of aggregate output. In sharp contrast to the indeterminacy literature pioneered by Benhabib and Farmer [J. Benhabib, R. Farmer, Indeterminacy and increasing returns, J. Econ. Theory 63 (1) (1994) 19-41] and Gali [J. Gali, Monopolistic competition, business cycles, and the composition of aggregate demand, J. Econ. Theory 63 (1) (1994) 73-96], indeterminacy in our model is global; hence it is more robust to structural parameters. In addition, sunspots in our model can be autocorrelated. The paper provides a justification for exogenous variations in desired markups, which play an important role as a source of cost-push shocks in the monetary policy literature. Our model outperforms a standard RBC model driven by technology shocks in several dimensions, including the volatility of labor market and the hump-shaped output dynamics.     

Foreign interest rate shocks and exchange rate regimes in East Asia

Using a theoretical dynamic stochastic general equilibrium model and an empirical panel vector autoregression, we assess the transmission of foreign real interest rate shocks on the volatility of various key macroeconomic variables in nine small open economies in East Asia taking into account the role of exchange rate regimes. Both the theoretical and empirical findings confirm the hypothesis that flexible exchange rate may work as a shock absorber when the economy is hit by foreign real interest rate shocks. The findings suggest a clear trade-off between the volatility of real exchange rate and real output to foreign interest rate shocks, both the US and G7 real interest rates, where the responses of real output are mitigated in countries that have more flexible exchange rate regime.     

Responses of Economic Activity to Global Oil Market Shocks: A Comparative Analysis of Major Net Oil‐Producing and ‐Consuming Countries

We argue that four channels drive oil price shocks during 1986M5–2013M1, namely the oil supply, aggregate demand, oil‐specific demand and real exchange rates. Our findings are that oil price shocks driven by oil supply positively affect net oil‐consumer countries faster than net oil‐producer countries. Oil price shocks driven by aggregate demand are largely country‐specific. Oil shocks driven by other demands influence net oil‐producers faster than net oil‐consumers negatively, and persistently mostly among net oil‐producers. Other shocks have large negative effects on the industrial production of all countries, with responses appearing very quickly and persisting for at least a year.