Variation in the Effects of Aggregate Demand Shocks: Evidence and Implications across Industrial Countries

Over a sample of nineteen industrial countries, more variable aggregate demand and/or higher mean inflation attenuates (augments) the effect of aggregate demand shocks on real output growth (wage and price inflation) while having no effect on the response of the real wage to such shocks. In all countries examined, aggregate demand shocks are positively (negatively) correlated with nominal variables (real output). Among explanations of the business cycle based on shocks to aggregate demand, this evidence favors the new Keynesian sticky wage explanation over the sticky price and the new classical imperfect information explanations.     

UK shocks and Irish business cycles, 1922–79

This article examines the transmission of UK and global shocks to the Irish economy over the period 1922–79, using annual data for consumer prices and real GDP in a structural vector autoregression (SVAR) model. UK aggregate demand and supply shocks have large and significant effects on Irish CPI, but smaller effects on Irish real GDP. A historical decomposition indicates that UK aggregate supply and demand shocks played a more important role than domestic shocks in the evolution of Irish CPI. In contrast, the evolution of Irish real GDP is driven more by idiosyncratic domestic shocks than by UK shocks.     

Price‐Setting Behavior of Korean Firms†

This paper investigates a pattern of price revision by firms in Korea and sheds light on the cause of price stickiness by providing reliable statistical estimates for calibration of the parameters of the widely‐used macro‐models. Based on firm‐level survey data and using a probit model, we identify the firm characteristics or market conditions that discourage firms from carrying out state‐dependent price adjustment. We also estimate the factors driving firms to engage in state‐dependent adjustment rather than wait until the next scheduled revision under three different shocks: demand, general cost and exchange rate shocks. We find a few interesting features, as follows. First, price revision by Korean firms tends to be time‐dependent rather than state‐dependent, with a sizable dispersion across sectors and firm sizes. Second, the pattern of price revision in Korea is not significantly different from that in selected advanced economies. Third, the reason why firms favor time‐dependent price adjustments appears to be endogenous, accounted for by a number of market institution variables. Fourth, in response to shocks, Korean firms tend to wait until the next periodically scheduled revision rather than make a state‐dependent price adjustment, unless marginal costs are affected significantly by the shock, and state‐dependent revisions are often significantly delayed when they do occur.     

Interaction between structural and cyclical shocks in production and employment

Interaction between Structural and Cyclical Shocks in Production and Employment. — A major aim of recent empirical modelling of the business cycle is to identify the relative importance of aggregate supply and demand shocks. This paper uses the methodology of unobserved (or structural) components time series models for the identification of technology and demand shocks in a two-equation system of structural labour productivity and industrial output. It allows us to introduce the correlation between the structural and cyclical shocks such that the mutual dependency of these shocks can be estimated explicitly. The data is quarterly time series of labour productivity in industry and industrial output for Germany, the Netherlands, the United Kingdom and the United States. Our results show that the covariance of the dynamics of structural and cyclical shocks appears to be important in these countries.     

Separating shocks from cyclicality in Indian aggregate supply

Simultaneity issues as well as incorrect measurement of shocks and of the cyclical variable bias estimated slopes of the Indian aggregate supply curve (AS). Our initial Generalised Method of Moments estimation, based on a filtered output gap variable and including supply shocks, also gives an unrealistic downward sloping AS. But we find measures of asymmetries in price changes outperform traditional measures of supply shocks. Estimation using marginal costs as a proxy for the output gap gives a positive coefficient that reduces in size on including our comprehensive supply shock variable, implying the correct AS has a small positive slope, but is subject to multiple shifts. The semi-structural specification, closer to firms’ actual decisions, gives estimates of structural parameters such as degree of price stickiness and extent of forward-looking price adjustment. The results more correctly separate shocks from cyclicality, help to interpret India's growth and inflation experience, and have implications for policy.     

How do firms respond to minimum wage regulation in China? Evidence from Chinese private firms

To study how firms respond to minimum wage regulation in China, this paper empirically explores a number of dimensions along which firms adjust in response to minimum wage differences, using three waves of a national survey of Chinese private firms. Consistent with the predictions of economic theory, we find that private firms in China respond to minimum wage increases by cutting various fringe benefits such as pension and insurance, and by laying off low-skilled workers and short-term workers. Despite these adjustments, firms cannot fully mitigate the detrimental effects on firm profitability when faced with adverse demand shocks because of the wage rigidity introduced by minimum wage regulation. These findings highlight the unintended consequences of minimum wage regulation on the private sector in China.     

China's Business Cycles: Perspectives from an AD–AS Model*

The present paper represents a first attempt to study China's business cycles using a formal analytical framework; namely, a structural VAR model. It is found that (i) demand shocks were the dominant source of macroeconomic fluctuations, but supply shocks had gained more importance over time; (ii) driving forces of demand shocks were consumption and fixed investment in the first cycle of 1985–1990, but shifted to fixed investment and world demand in the second cycle of 1991–1996 and the post‐1997 deflation period; and (c) macroeconomic policies did not play an important part either in initiating or counteracting cyclical fluctuations.     

The impacts of the COVID-19 pandemic on micro,small, and medium enterprises in Asia and their digitalization responses

Soon after the outbreak of the COVID-19 pandemic, many governments began extending financial and other forms of support to micro, small, and medium enterprises (MSMEs) and their workers because smaller firms are more vulnerable to negative shocks to their supply chain, labor supply, and final demand for goods and services than larger firms. Since MSMEs are diverse, however, the severity of the pandemic’s impact on them varies considerably depending on their characteristics. Using online survey data of MSMEs from eight developing economies in South, Southeast, and Northeast Asia, this paper attempts to deepen our understanding of the impact of the pandemic on MSMEs, especially their employment, sales revenue, and cash flow. It also characterizes those firms that began participating in online commerce and tries to determine how their use of online commerce and their employment are related in this difficult time. This paper also examines the government support that MSMEs have received and the extent to which it has satisfied their support needs.     

Revisiting the shocking aspects of Asian monetary unification

There is renewed interest in monetary cooperation in Asia. To the extent that such cooperation evolves to include discussions about co-ordination of exchange rate policies it is important to evaluate the desirability of such co-ordination. Such an evaluation involves in part an assessment of the cross-country correlation of macro-economic shocks, a criterion used in the past to assess the desirability of monetary unification. In revisiting this question this paper not only updates previous studies, but it makes two significant methodological contributions to the literature based on estimates of vector autoregression (VAR) models. Our empirical specification allows for the possibility that aggregate demand and aggregate supply shocks are contemporaneously correlated within each economy, on the one hand, and takes explicit account of third-country common influences on each economy, on the other. Our results show that previous findings in the literature do not always hold up when our modelling methodology is applied to the data. With respect to the implications for monetary unification our results do not clearly identify a group of countries for which shocks are unambiguously highly correlated and which therefore would be able to perform well with a common monetary policy. The correlation structure differs between aggregate demand shocks and aggregate supply shocks.     

Whither China? Reform and economic integration among Chinese regions

This paper investigates the changing nature of economic integration in China. Specifically, we consider business-cycle synchronization (correlation of demand and supply shocks) among Chinese provinces during the period 1955–2011. We find that the symmetry of supply shocks has declined after the liberalization initiated in 1978. In contrast, the correlation of demand shocks has increased during the same period. We then seek to explain these correlations by relating them to factors that proxy for interprovincial trade and vulnerability of regions to idiosyncratic shocks. Interprovincial trade and similarity in factor endowments tend to make shocks more symmetric. Surprisingly, foreign trade and inward FDI have little effect on the symmetry of shocks.     

Do NBFCs propagate real shocks?

Notwithstanding a smaller share of total loans vis-à-vis commercial banks, we investigate a possible role of Non-banking financial companies (NBFCs) in propagating a real shock to the rest of the economy. Our two-sector model captures emerging economy characteristics such as NBFC borrowings from commercial banks, heterogeneities in financial constraints, and labour market friction faced by firms. Our theoretical and simulation results, using Indian parameters, indicate that an idiosyncratic shock (i.e., higher realization of the failed firms) and a sectoral productivity shock (in the sector financed by NBFCs) increase the interest rate charged by the banks, and the unemployment rate while reducing the real wages and per capita capital formation. However, the reverse happens given a structural shock, assumed as an increase in the average number of failed firms. Early detection of such shocks and quick policy intervention are required to provide a cushion for capital formation and job creation.     

Efficiency Wages,Interfirm Comparison,and Unemployment

The paper presents an efficiency wage model where worker effort depends on own wages relative both to wages of other workers in the firm and to similar workers in other firms. First, we show how the Solow conditions are modified if internal comparison effects are at work. Second, we discuss the effect of internal wage comparison on wage inequality within firms. Third, we study unemployment and relative wage determination within a general equilibrium model, and analyze the effect of technological change and various tax policies on equilibrium unemployment and relative wages. Finally, the short-run effects of aggregate demand shocks are analyzed.     

Transmission of China's Shocks to the BRIS Countries

This paper investigates the effects of China on the BRIS countries, namely Brazil, Russia, India and South Africa. We identify Chinese supply and demand shocks and assess their transmission to BRIS in a structural dynamic factor model framework estimated over the period 1995Q2‐2009Q4. The findings show that Chinese supply shocks are more important than its demand shocks. Supply shocks produce positive and significant output responses in all BRIS countries. And while these supply shocks have a permanent impact on the BRIS countries, the effects of demand shocks are short‐lived. Both supply and demand shocks are transmitted through trade rather than financial linkages. However, the responses of the BRIS countries are heterogeneous and therefore require country‐specific policy responses.     

A history of aggregate demand and supply shocks for the United Kingdom, 1900 to 2016

This paper presents a history of aggregate demand and supply shocks spanning 1900 – 2016 for the United Kingdom. Sign restrictions derived from a workhorse Keynesian model are used to identify the signs of those shocks. We compare the 30 largest shocks implied by a vector autoregressive model in unemployment and inflation with the narrative historical record. Our approach provides a new perspective on well-known events in economic history. We highlight two episodes of particular interest: an aggregate supply shock in the late 1920s, which we attribute to changes in the bargaining power of labor, and positive aggregate demand shocks in the mid-1970s, which we attribute to fiscal policy.     

Deflation,Productivity Shocks and Gold: Evidence from the 1880–1914 Period

In this paper we examine the sources and impact of deflation on the growth experiences of the four dominant countries on the gold standard in the period 1880–1913: the United States, The United Kingdom, France and Germany. We distinguish between good deflation, (driven by positive aggregate supply shocks) and bad deflation (driven by aggregate demand shocks). We use an empirical Blanchard/Quah model which decomposes the behaviour of prices, output and the money stock into the impact of shocks such as a world price level shock, a domestic supply shock, and domestic demand shocks including a shock to the domestic gold stock. Our key finding is that the European economies were essentially classic in the sense that output was mainly supply driven and that money was neutral even when country specific gold stocks are included. In the United States, however, we observe both good and bad deflation.     

Pricing to market, firm heterogeneity and the role of quality

We build a pricing-to-market (PTM) model with firm heterogeneity, which allows for imperfect competition and market segmentation in the presence of flexible exchange rates, horizontal and vertical differentiation and different tastes of consumers in destination markets. We derive firm’s pricing behaviour in response to price and quality competition shocks. We show that there is PTM heterogeneity across firms if quality has a role. We empirically assess the main predictions of our theoretical framework on Italian firm-level data. We document that export-domestic price margins are significantly affected by price and quality competitiveness factors even controlling for foreign demand conditions, size, export intensity, destination markets and unobservables. Finally, we provide evidence of strong heterogeneity across firms in their reaction to price and quality competitiveness.     

The dynamics of aggregate demand and supply shocks in ASEAN countries

This paper revisits the issue of identification of aggregate demand and supply shocks in ASEAN countries using an alternative identification scheme where the aggregate demand and supply shocks are allowed to be correlated. Applying the technique of Cover, Enders, and Hueng (2006) within a bivariate Structural VAR model, this paper shows that aggregate demand and supply shocks are interrelated (positively) in ASEAN countries. Unlike most of the previous studies, it is found that changes in the output level are mainly driven by aggregate demand shocks, whereas supply shocks play the dominant role in affecting inflation in ASEAN countries. The correlation of the shocks across the countries is found to be quite small, suggesting that ASEAN is still not set to form a common currency union.     

China's monetary policy surprises and corporate real investment

We evaluate the effect of China's monetary policy shocks on corporate real investment. We propose a new approach to identify China's monetary policy shocks using high-frequency surprises based on treasury futures around monetary policy announcements as external instruments. We then estimate the dynamic effect of monetary policy shocks on corporate real investment using a rich firm-level data of all listed non-financial firms in China. We find that an unexpected monetary policy easing boosts firms' investment expenditures with heterogeneous dynamic responses across firms: small-sized firms have quicker responses than large-sized firms, especially for non-state-owned enterprises (non-SOEs). We show that sales revenue response could be the channel through which monetary policy shock transmits to non-SOEs' investment expenditures in China.     

The Behavior of the Real Exchange Rate Under Fixed and Floating Exchange Rate Regimes

This article investigates the behavior of real exchange rates under fixed and flexible exchange rates. Using data from both the Bretton Woods and the modern floating periods, we decompose real exchange rate movements into components attributable to supply shocks, real demand shocks, monetary shocks, capital flows shocks, and real oil price shocks. Empirical results show that real demand shocks are an important source of real exchange rate movements under both fixed and flexible rates, while monetary shocks are negligible. Supply and oil price shocks seem to be more important under Bretton Woods, while capital flows shocks seem to explain a relatively higher proportion of real exchange rate movements under the modern floating period.     

Sources of Real Exchange Rate Volatility in Africa: The Case of ECOWAS*

Abstract: This study examines the impact of (real) demand shocks, (aggregate) supply shocks, and monetary shocks on real exchange rates in 13 West African countries. We observe that the real demand shocks explain most of the fluctuations in real exchange rates in all these countries. Accordingly, policymakers should adopt a careful demand management strategy by controlling government expenditure and taxes.