THE PROPAGATION OF UNCERTAINTY SHOCKS: ROTEMBERG VERSUS CALVO

This article studies the effects of uncertainty shocks on economic activity, focusing on inflation. Using a vector autoregression, I show that increased uncertainty has negative demand effects, reducing GDP and prices. I then consider standard New Keynesian models with Rotemberg-type and Calvo-type price rigidities. Despite the belief that the two schemes are equivalent, I show that they generate different dynamics in response to uncertainty shocks. In the Rotemberg model, uncertainty shocks decrease output and inflation, in line with the empirical results. By contrast, in the Calvo model, uncertainty shocks decrease output but raise inflation because of firms' precautionary pricing motive.     

Sudden stops, banking crises and investment collapses in emerging markets

We evaluate whether financial openness leaves emerging market economies vulnerable to the adverse effects of capital reversals (“sudden stops”) on domestic investment. We investigate this claim in a broad sample of emerging markets during the period 1976–2002. If the banking sector does not experience a systemic crisis, sudden stop events fail to have a significant impact on investment. Bank crises, on the other hand, have a significant negative effect on investment even in the absence of a contemporaneous sudden stop crisis. We also find that openness to capital flows worsens the adverse impact of banking crises on investment. Our results provide statistical support for the policy view that a strong banking sector which can withstand the negative fallout of capital flight is essential for countries that open their economies to international financial flows.     

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.     

Firm Size, Industry Mix and the Regional Transmission of Monetary Policy in Germany

Abstract. This paper estimates the impact of interest rate shocks on regional output in Germany over the period from 1970 to 2000. We use a vector autoregression (VAR) model to obtain impulse responses, which reveal differences in the output responses to monetary policy shocks across ten German provinces. Next, we investigate whether these differences can be related to structural features of the regional economies, such as industry mix, firm size, bank size and openness. An additional analysis of the volatility of real GDP growth for the period 1992–2000 includes the Eastern provinces. We also present evidence on the interrelationship between firm size and industry, and compare our measure of firm size with those used in previous studies. We conclude that the differential regional effects of monetary policy are related to industrial composition, but not to firm size or bank size.     

Is a monetary union feasible for East Asia?

The empirical suitability of the East Asian economies for potential monetary integration is assessed. The structural vector autoregression (VAR) method is employed to identify the underlying shocks using a three-variable VAR model across the East Asian economies. The estimates of the EEC are used as a benchmark to compare the size of the underlying shocks and the speed of adjustment to shocks in both regions to determine the feasibility of forming an optimum currency area (OCA) in East Asia. The empirical results do not display strong support for forming an OCA in the East Asian region. The results do imply, however, that some small subregions are potential candidates for OCAs, since their disturbances are correlated and small and these economies adjust rapidly to shocks.     

Impact of US monetary policy rate shock and other external shocks on the Hong Kong economy: A factor‐augmented vector autoregression approach

This paper uses the factor‐augmented vector autoregression framework to study the impact on the Hong Kong economy of the diverging monetary policies by the Fed, the European Central Bank (ECB) and the Bank of Japan as well as the slowdown of the Mainland economy. The empirical results show that shocks in US monetary policy rate mainly affect interest rate‐sensitive sectors in Hong Kong and that monetary easing from the European Central Bank and the Bank of Japan somewhat offsets the impact of tightening of the Fed. The transmission of external shocks is through trade and capital markets. Real variables such as real GDP growth and the unemployment rate are more sensitive to the economic slowdown in Mainland China. It is estimated that the combined effect of the four external shocks will on average lower Hong Kong's quarterly GDP growth by 0.6 percentage points and quarterly inflation by 0.2 percentage points in the first four quarters. However, Hong Kong's financial stability, particularly with regard to loan quality, banks’ capital and liquidity, is well maintained by macroprudential policies, suggesting that Hong Kong's financial system is resilient to external shocks.     

Do large recessions reduce output permanently?

We apply a recent quantile autoregression unit root test to US GDP. The test takes into account that the transmission of a shock might depend on the sign and the size of the shock. We find that positive and negative shocks including large recessionary shocks like the 2008/2009 crisis have permanent effects on output.     

Can innovation shocks determine CO2 emissions (CO2e) in the OECD economies? A new perspective

ABSTRACT

This study has attempted to address prior knowledge gaps in the environmental economics literature by integrating the innovation shocks into the Environment Kuznets Curve (EKC) equation for twenty-six OECD economies using data from 1990 to 2014. Foreign direct investment (FDI), exports (EXP), renewable energy consumption (REC), and GDP per capita were included as control variables. The results from multiple empirical analyses indicated that positive shocks to innovation improve, but the negative shocks disrupt environmental quality. Data analyses also showed that a positive correlation exists between income per capita of OECD economies. From the negative coefficient of income per capita (squared) and the existence of a negative nexus between FDI and CO2e, both the EKC and the Pollution Halo Hypothesis (PHH) were confirmed in sampled economies, respectively. The paper offers empirical support for the favourable impacts of REC on the quality of the environment and calls for the adoption of innovation shocks as a policy instrument to formulate better environmental policies for a sustainable future.     

Sudden stops and the Mexican wave: Currency crises,capital flow reversals and output loss in emerging markets

Sudden stops are the simultaneous occurrence of a currency/balance of payments crisis with a reversal in capital flows. We investigate whether sudden-stop crises are a unique phenomenon and whether they entail an especially large and abrupt pattern of output collapse (a “Mexican wave”). Using a panel data set over 1975–1997 and covering 24 emerging-market economies, we distinguish between the output effects of currency crises, capital inflow reversals, and sudden-stop crises. Sudden-stop crises have a large negative, but short-lived, impact on output growth over and above that found with currency crises. A currency crisis typically reduces output by about 2–3%, while a sudden stop reduces output by an additional 6–8% in the year of the crisis. The cumulative output loss of a sudden stop is even larger, around 13–15% over a 3-year period. Our model estimates correspond closely to the output dynamics of the ‘Mexican wave’ (such as seen in Mexico in 1995, Turkey in 1994 and elsewhere), and out-of-sample predictions of the model explain well the sudden (and seemingly unexpected) collapse in output associated with the 1997–1998 Asian Crisis.     

Fiscal deficits,banking crises and policy reversal in a semi-open economy

We study the effect of domestic policies and external shocks in a semi-open economy characterized by incomplete liberalization of the financial sector. We argue that in such transition economies stabilization programs can have a negative impact on the fiscal imbalances, offsetting to some extent the very achievement of the stabilization program. We develop a simple general equilibrium model which allows propagation of shocks in the presence of government guarantees and imperfect capital mobility. We also empirically test the impact of positive foreign interest shock on the Indian economy using a reduced form VAR approach. The econometric evidence, though broadly consistent with the main predictions of the model, suggests no significant impact of foreign interest rate shock on output and credit. We conclude that incomplete liberalization of the financial sector in transition economies has two effects. It reduces i) exposure to external financial shocks (like the current credit crisis) and ii) ability to deal with real sector shocks (which may arise from global recession in the medium term) due to endogenous policy reversals and presence of government guarantees.     

Sudden Flight and True Sudden Stops

We extend the sudden stops literature by recognizing that crisis episodes can be caused by the retreat of global investors, as is commonly assumed but not shown in the extant literature, or by the sudden flight of local investors. We find that almost half of the previously defined sudden stops are actually episodes of sudden flight in which gross inflows resume quickly and strongly. In contrast, in true sudden stops inflows cease for an extended period and, compared to sudden flight, these episodes are bunched and are associated with greater slowdowns in economic activity and sharper currency depreciations. We also show that the empirical regularities of sudden flight and true sudden stops are consistent with theoretical models that incorporate gross capital flows and information asymmetries.     

ASIAN BUSINESS CYCLE SYNCHRONIZATION

This paper develops a multilevel structural factor model to study international output comovement and its underlying driving forces. Our method combines a structural vector autoregression with a multilevel factor model, which helps us understand the economic meaning of the estimated factors. Using quarterly data of real GDP growth covering 9 emerging Asian economies and G‐7 countries, we estimate a global supply factor, a global demand factor, and group supply and demand factors for each group of the economies. We find that although the role of the global factors has intensified over the past 15 years for most of the economies, output fluctuations in Asia have remained less synchronized with the global factor than those in the industrial countries. The Asian regional factors have become increasingly important in tightening the interdependence within the region over time. Therefore, although emerging Asian economies cannot ‘decouple’ completely from the advanced economies, they have, nonetheless, sustained a strong independent cycle among themselves. We also find that synchronized supply shocks contributed more to the observed synchronization in output fluctuations among the Asian economies than demand shocks. This points to the role of productivity enhancement and transmission of other supply shocks through, for example, vertical trade integration, rather than dependence on external demand, as the primary source of business cycle synchronization in emerging Asia.     

Oil shocks and monetary policy rules in emerging economies

We examine the effects of shocks in the oil market on key macroeconomic variables in small open economies using a dynamic stochastic general equilibrium model with sticky prices and imperfect competition under different monetary policy rules. The numerical solutions show that the types of exchange rate regimes and monetary policies could partly explain the trends in macroeconomic volatilities considering negative shocks to oil supply (Hamilton, 1983) and positive shocks to oil demand (Kilian, 2009). These findings are confirmed in vector autoregressive responses for Chile and Israel with inflation targeting under flexible exchange regimes and Hong Kong with fixed regime.     

Sudden Stops and Currency Crashes

This paper investigates which factors determine whether sudden stops in international capital flows are followed by a currency crash using data for 85 economies in the period 1980–2012. An event study approach is used for an 11‐year window around the crises for nine potential explanatory variables. In addition, the paper estimates discrete‐choice panel models. The results suggest that low trade openness, shallow financial markets, and current account imbalances increase the likelihood that a sudden stop will be followed by a currency crash. Moreover, it is established that the impact of these factors differs across different exchange rate regimes.     

Sudden stops: Determinants and output effects in the first era of globalization, 1880-1913

We study the determinants and output effects of sudden stops in capital inflows during an era of intensified globalization from 1880 to 1913. Higher levels of exposure to foreign currency debt and large current account deficits associated with reliance on foreign capital greatly increased the likelihood of experiencing a sudden stop. Trade openness and strong reserve positions had the opposite effect. Sudden stops accompanied by financial crises are associated with drops in output per capita below trend equal to three to four percent. Frictions in the international capital markets of the day are a likely candidate for these output losses. Sudden stops connected with crises do not seem to bring trend growth downwards. Sudden stops not connected with crises appear to be associated with significant declines in trend growth.     

The impact of Chinese monetary policy shocks on East and South‐East Asia1

We study the effects of Chinese monetary policy shocks on China's major trading partners in East and South‐East Asia by estimating structural vector autoregressive (SVAR) models for six economies in the region. We find that a monetary expansion in Mainland China leads to an increase in real GDP (temporary) and the price level (permanent) in a number of economies in our sample, most notably in Hong Kong and the Philippines. The impact could result from intertemporal substitution present in a general equilibrium framework, which allows for positive domestic impacts of foreign monetary expansions. Our results emphasize the growing importance of China for its neighbouring economies and the significance of Chinese shocks for the design of monetary policy in Asian economies.     

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.     

Has Australia's floating exchange rate regime been optimal?

This paper develops a straightforward theoretical framework for evaluating exchange rate regime choice for small economies. It proposes that a floating exchange rate minimises national income and employment variation when real macroeconomic shocks predominate, whereas a pegged exchange rate achieves this goal should monetary shocks predominate. It then shows econometrically that, in the case of Australia, a floating exchange rate best suited the economy for the period 1985 to 2010, because real shocks were more significant than monetary shocks. Moreover, consistent with the theory, further results showing that a stronger (weaker) exchange rate correlated with positive (negative) deviations from trend GDP affirm that a floating exchange rate regime was optimal for Australia over this time.     

Sudden stops of international fund flows: Occurrence and magnitude

Using data of 65 economies from January 2000 (2008) to June 2015, we examine the covariates of sudden stops in fund equity and bond flows. Our results suggest that global, contagion and domestic factors are all related to the likelihood of sudden stops. For sudden stops in equity flows, global factors play a more important role in high‐income economies. For sudden stops in bond flows, global variables are the most important covariates in emerging economies, whereas domestic variables play a more important role in high‐income economies. We also find that global and contagion factors are correlated to the magnitude of sudden stops.