Revisiting the Exchange Rate Pass‐Through to Inflation in Africa’s Two Largest Economies: Nigeria and South Africa

This paper revisits the exchange rate pass‐through (ERPT) to inflation in Nigeria and South Africa by incorporating structural breaks and using time series variables, namely the consumer price index, nominal effective exchange rate, gross domestic product, and crude oil price. Based on the Maki cointegration test and a flexible estimation approach of the Autoregressive Distributed Lag (ARDL) model, our empirical evidence suggests that the long‐ and short‐run ERPT to inflation is complete for Nigeria, while for South Africa it is incomplete both in the long run and short run. This result indicates that prices are stickier in South Africa compared to Nigeria. The comparison between Nigeria and South Africa confirms the role of inflation targeting and central bank credibility on the ERPT. The results divulge further that output growth in Nigeria increases inflation in the long run while it is anti‐inflationary in the short run. For South Africa, the effect of output growth is negatively insignificant. In addition, the long‐run effect of oil price is negative and significant for Nigeria, while for South Africa the short‐run effect of oil price is positive and significant. Therefore, the findings of this paper will assist the monetary authorities to achieve monetary policy objectives.     

Inflation in developing Asia: pass‐through from global food and oil price shocks

The world economy experienced a sharp spike in food and oil prices during 2007 and 2008. In light of developing Asia's dependence on imported oil and food, we can expect higher global food and oil prices to result in higher domestic consumer prices in the region. However, the actual impact of the global commodity shocks on consumer price inflation in developing Asia depends on a number of other factors, including government policy measures. The objective of this paper is to examine empirically the extent of the pass‐through of global food and oil prices to domestic consumer prices in nine countries in the region. The main empirical result is that the magnitude of the pass‐through has been limited. Government policy measures, for example, subsidies and price controls, played a role in reducing or delaying the pass‐through of oil and food price increases to domestic prices.     

On the Sources of Inflation in Kenya: A Model‐Based Approach

We develop a semi‐structural new‐Keynesian open‐economy model – with separate food and non‐food inflation dynamics to study the sources of inflation in Kenya in recent years. To do so, we filter international and Kenyan data (on output, inflation and its components, exchange rates and interest rates) through the model to recover a model‐based decomposition of most variables into trends (or potential values) and temporary movements (or gaps) – including for the international and domestic relative price of food. We use the filtration exercise to recover the sequence of domestic and foreign macroeconomic shocks that account for business cycle dynamics in Kenya over the last few years, with a special emphasis on the various factors (international food prices, monetary policy) driving inflation. We find that while imported food price shocks have been an important source of inflation, both in 2008 and more recently, accommodating monetary policy has also played a role, most notably through its effect on the nominal exchange rate. We also discuss the implications of this exercise for the use of model‐based monetary policy analysis in sub‐Saharan African countries.     

Pass-through Effects of Global Commodity Prices on China＇s Inflation： An Empirical Investigation

The present paper uses a two-step approach to estimate the pass-through effects of changes in international commodity prices and the RMB exchange rate on domestic consumer price inflation in China. We first estimate the pass-through effects of international commodity prices on producer prices and then estimate the pass-through effects of producer price inflation on consumer price inflation. We find that a l O-percent increase in international commodity prices would lead to China＇ s producer prices increasing by 1.2 percent 3 months later, which in turn would increase China＇ s domestic inflation by 0.24 percent over the same period. However, a 10-percent appreciation of the RMB exchange rate against the US dollar would help to reduce increases in producer prices by 4.4 percent over the following 3 months, which in turn would lead to a 0. 89-percent decline in consumer price inflation over the same period. Our findings suggest that appreciation of the RMB in an environment of rising global commodity prices and a weak US dollar could be an effective instrument to help contain inflation in China.     

Exchange Rate Pass-through in China

During the second half of 2007 and early part of 2008 when there were intense inflationary pressures in China, RMB appreciation was advocated as a means of helping to curb inflation. The effectiveness of appreciation in controlling inflation depends on the impact of exchange rate movements on import and domestic prices. Our analysis finds fairly large and speedy exchange rate pass-through （ERPT） to import prices： 50 and 60percent for the short run and long run, respectively. However, the degree of ERPT decreases along the price chain from upstream to downstream prices. ERPT for consumer prices, the most downstream prices, is much milder and has substantial lags. A 10-percent rise in the nominal effective exchange rate will dampen consumer prices by 1.1 percent within a year, with very little pass-through in the first half year, and by 2.0percent over the long run. These findings, particularly the ERPT to consumer prices, suggest that RMB appreciation can help to reduce inflationary pressures over the longer term. However, it is unlikely to provide rapid relief to the current round of high inflation because of the long lags in ERPZ. The RMB needs to strengthen in effective terms to exert the desired dampening impact on prices.     

Has the Exchange Rate Pass‐Through changed in South Africa?

This paper uses the two‐stage exchange rate pass‐through (ERPT) framework instead of the direct pass‐through (PT) from the exchange rate to consumer inflation to assess the variation in the ERPT for South Africa from 1994 to 2014. The paper uses rolling‐window estimation to examine the possibility of change in the ERPT over time. In addition, it investigates the asymmetric behaviour of the ERPT over the business cycle. The results indicate that the ERPT for South Africa is complete in the first stage but incomplete in the second stage. It implies that retailers do not pass all the cost to consumers. The first‐stage ERPT has declined slightly since the Global Financial Crisis. Weak domestic demand and possibly the concentration of firms in the manufacturing sector are the main forces behind this low PT. Moreover, there is evidence of asymmetry in the first‐stage ERPT in that it tends to rise in the upturn phase of the economy compared to the downturn. The second‐stage ERPT shows a considerable decline since the adoption of the inflation‐targeting regime. Similar to the first‐stage case, the PT is muted in the downturn but rises in the expansionary phase by about 10%.     

The Determinants of Time‐Varying Exchange Rate Pass‐Through in South Africa

The pass‐through of shifts in the rand exchange rate to consumer price inflation has been well documented for South Africa. Although estimates of the absolute level of pass‐through vary, some studies document a decline in pass‐through over time. In order to better illuminate the policy implications of pass‐through, this paper seeks to add to the literature by decomposing pass‐through into a number of time‐varying impulses. This has the advantage of providing deeper insights of pass‐through over time and across various monetary policy regimes. We then analyse the determinants of time‐varying pass‐through. Our results confirm that pass‐through has declined over time but is subject to a stable and low inflation environment. We also show that a volatile exchange rate leads to higher pass‐through.     

EXCHANGE RATE PASS‐THROUGH TO IMPORT PRICES IN SOUTH AFRICA: IS THERE ASYMMETRY?1

This paper examines the magnitude and speed of exchange rate pass‐through (ERPT) to import prices in South Africa. It further explores whether the direction and size of changes in the exchange rate have different pass‐through effects on import prices, i.e. whether the exchange rate pass‐through is symmetric or asymmetric. The findings of the study suggest that ERPT in South Africa is incomplete but relatively high. Furthermore, ERPT is found to be higher in periods of rand depreciation than appreciation, which supports the binding quantity constraint theory. There is also evidence to suggest that pass‐through is slightly higher in periods of small changes than large changes in the exchange rate in harmony with the menu cost theory when the invoices are denominated in the exporters' currency.     

Exchange Rate Pass-through in a Small Open Economy: the Importance of the Distribution Sector

The degree of exchange rate pass-through to domestic goods prices has important implications for monetary policy in small open economies with floating exchange rates. Evidence indicates that pass-through is faster to import prices than to consumer prices. Price setting behaviour in the distribution sector is suggested as one important explanation. If distribution costs and trade margins are important price components of imported consumer goods, adjustment of import prices and consumer prices to exchange rate movements may differ. We present evidence on these issues for Norway by estimating a cointegrated VAR model for the pricing behaviour in the distribution sector, paying particular attention to exchange rate channels likely to operate through trade margins. Embedding this model into a large scale macroeconometric model of the Norwegian economy, which inter alia includes the pricing-to-market hypothesis and price-wage and wage-wage spirals between industries, we find exchange rate pass-through to be quite rapid to import prices and fairly slow to consumer prices. We show the importance of the pricing behaviour in the distribution sector in that trade margins act as cushions to exchange rate fluctuations, thereby delaying pass-through significantly to consumer prices. A forecasting exercise demonstrates that exchange rate pass-through to trade margins has not changed in the wake of the financial crises and the switch to inflation targeting. We also find significant inflationary effects of exchange rate changes even in the short run, an insight important for inflation targeting central banks.     

Global food prices and monetary policy in an emerging market economy: The case of India

This paper investigates a perception in the political debates as to what extent poor countries are affected by price movements in the global commodity markets. To test this perception, we use the case of India to establish in a standard SVAR model that global food prices influence aggregate prices and food prices in India. To further analyze these empirical results, we specify a small open economy New-Keynesian model including oil and food prices and estimate it using observed data over the period 1996Q2 to 2013Q2 by applying Bayesian estimation techniques. The results suggest that a big part of the variation in inflation in India is due to cost-push shocks and, mainly during the years 2008 and 2010, also to global food price shocks, after having controlled for exogenous rainfall shocks. We conclude that the inflationary supply shocks (cost-push, oil price, domestic food price and global food price shocks) are important contributors to inflation in India. Since the monetary authority responds to these supply shocks with a higher interest rate which tends to slow growth, this raises concerns about how such output losses can be prevented by reducing exposure to commodity price shocks.     

我国出口汇率传递的非对称性:来自中日贸易的证据

文章扩展了Yang（2007）的厂商定价模型，对汇率传递非对称性、特点和成立条件进行理论分析，发现对称传递需要满足严格的条件，而现实中更常见的是非对称汇率传递。在一定条件下，商品需求弹性越大，越可能呈现出口国货币贬值传递率高而升值传递率低的特点。利用2000年1月至2011年12月我国出口日本的966种商品价格数据，发现汇率波动向价格传递具有非对称性：（1）人民币升值时，日元价格上涨较少；而贬值时，价格下降较多。我国出口商品的需求弹性较大，在日本市场上面对的是一个强竞争结构。（2）若月度升值超过一定幅度（测算约为2.43%），传递率又会有所上升，说明尽管日元价格易跌难涨，但在升值导致成本上涨较多、明显挤压利润时，厂商不得不适当提高日元售价。采用2000年至2018年9月日本从中国进口单位价值指数进行稳健性检验，得出类似结论。现阶段稳定的人民币名义汇率对我国出口企业是更为有利的。     

Optimal Monetary Policy in China

Using the structural vector autoregression model, we estimate the current responses of monetary policy to contemporaneous shocks from macroeconomic variables. Our findings indicate that the People's Bank of China responded to inflation and output changes, but did not react to asset price fluctuations during the period from January 1997 to March 2010. The optimal monetary responses to exogenous shocks are also examined. It is revealed that using asset prices to formulate monetary policy would not help to improve monetary authorities' performance in lowering the volatilities of output growth and inflation while keeping output growth and inflation in their safety zones. The effectiveness of monetary policy and fiscal policy in reacting to external shocks is also discussed.     

Commodity Prices, Inflationary Pressures, and Monetary Policy: Evidence from BRICS Economies

We assess the transmission of monetary policy and the impact of fluctuations in commodity prices on the real economy for the five biggest and fastest growing emerging market economies: Brazil, Russia, India, China and South Africa (BRICS). Using modern econometric techniques, we show that a monetary policy contraction has a negative effect on output, suggesting that it can lean against unexpected macroeconomic shocks even when the financial markets are not well-developed in this group of countries. We also uncover the importance of commodity price shocks, which lead to a rise in inflation and demand an aggressive behaviour from central banks towards inflation stabilisation.     

Energy price shocks,monetary policy and China's economic fluctuations

This paper develops a New Keynesian dynamic stochastic general equilibrium model with energy factors to study various channels through which China's economic fluctuations are linked to energy price shocks and to search for the optimal monetary policy to cope with energy price shocks. We conclude that there are channels through which changes in energy prices will have the following cause–effect relationships. First, a rise in energy price as a negative technology shock will raise the costs of providing capital services per unit of capital, thereby reducing output. Second, a rising energy price distorts the intertemporal choices of households and firms, creating downward pressure on the expected future return on capital. Third, an energy price shock places upward pressure on the marginal costs associated with an increase in inflation. Numerical simulation results show that a positive energy price shock has a positive effect on energy technology improvements. In addition, the effects of energy price shocks can be mitigated by nominal rigidities, and interest rate rules will determine the magnitude of those effects. Using the efficient frontier method, we also show that optimal monetary policy in China should help control energy price volatility.     

Assessing the performance of inflation targeting in East Asian economies

This paper examines the implementation and performance of inflation targeting (IT) in four East Asian emerging market economies: Indonesia, Korea, the Philippines, and Thailand. It also examines monetary policy in Malaysia, a country that has not adopted IT. The study estimates policy reaction functions to test the links between the adoption of IT and use of a monetary policy rule. The impulse responses of prices to a monetary policy shock are also estimated to identify monetary policy impacts on prices. The findings on the monetary policies of the five economies can be summarised as follows. Korea has taken an inflation‐responsive and forward‐looking policy stance under inflation targeting, which has had an effect on the stability of prices. Indonesia and Thailand have conducted inflation‐responsive but backward‐looking policy stances, which have had no impact in terms of price stabilisation. The Philippines (which adopted IT but under a pegged exchange rate regime) and Malaysia have neither followed inflation‐responsive rules nor had policy impacts in terms of controlling inflation.     

Commodity prices and the macroeconomy: An extended dependent economy approach

This paper proposes a straightforward model for analysing the impact of export commodity price fluctuations on open macroeconomies with particular reference to Australia and New Zealand, major commodity exporters in the Asian region. It extends the dependent economy approach, first by re-specifying goods and services production as either exportable, importable or non-tradable, and second by adding a monetary sector to highlight key linkages between commodity prices, the exchange rate, price level, national output and trade account. The framework sheds new light on the phenomenon of ‘commodity currencies’, how exchange rate movements shield national output from terms of trade shocks, the importance of economic openness in this process, and the significance for monetary and exchange rate policy of short term, versus sustained, commodity price movements.     

Terms of Trade Shocks and Inflation Targeting in Emerging Market Economies

Emerging market economies (EMEs) have persistently experienced different waves of commodity terms of trade disturbances, generating macroeconomic instabilities. The adoption of inflation targeting (IT) by many EMEs has raised questions about its relative suitability in dealing with these shocks compared with other monetary policy regimes. This paper tests the robustness of IT compared with monetary targeting and exchange rate targeting regimes in coping with commodity terms of trade shocks using the panel vector autoregressive technique. The results show that in general, IT countries respond better to commodity terms of trade shocks especially with respect to inflation and output gap. However, exchange rates are more volatile in IT countries than in exchange rate targeting countries. The results suggest that EME countries can reduce the adverse effects of commodity terms of trade fluctuations when they adopt IT, but they also need to pay attention to exchange rate movements.     

A nonlinear ARDL model of inflation dynamics in the Philippine economy

This study investigated whether global oil price changes, exchange rate, interest rate, and economic output exert symmetric or asymmetric pass-through effects on inflation in the Philippines. A Nonlinear Autoregressive Distributed Lag (NARDL) model was fitted to the observable data using quarterly observations from 1998 to 2019. Knowledge of these relationships is important in monetary policy setting in achieving targeted inflation; the Philippines adopted inflation targeting in 2002. The finding shows that world oil price shocks are still prominent and the most important determinants of inflation variations in the country. There is prima facie evidence on the short-run asymmetry of oil price changes to inflation. Exchange rate pass-through to inflation was very minimal in the short-run, and there is no long-run effect. Evidence that interest rate and demand shocks have a long-run asymmetric effect on inflation was found. These findings imply that monetary policy setting should account for the asymmetric effects of inflation determinants. Study results provide a deeper understanding of how positive and negative changes of inflation determinants affect actual inflation, which aids policymakers in achieving targeted inflation.     

What Causes China＇s High Inflation？ A Threshold Structural Vector Autoregression Analysis

China＇s astonishing economic growth implies a necessity to understand its inflation. The present paper employs threshold nonrecursive structural vector autoregression analysis to explore the asymmetric effects of macro-variables on inflation in low and high inflation regimes. The empirical evidence demonstrates, first, that the reactions of inflation to various shocks are inflation-regime-dependent and asymmetric. Second, monetary policy influences China ＂s high inflation and adjusting the domestic interest rate in China may be an effective way to control inflation in a high inflation regime, but not in a low inflation regime. In a high inflation regime, a high inflation rate may cause the macro-policy authorities to increase the domestic interest rate, in an attempt to stabilize high inflation. Third, contrary to expectations, the world oil price is not a strong cost-push factor in a low inflation regime. Oil price increases may increase inflation in a high inflation regime, but there is no such obvious effect in a low inflation regime. Finally, China ＂s nominal effective exchange rate influences inflation in both low and high inflation regimes. A nominal effeetive exchange rate appreciation might be effective in controlling domestic inflation in both regimes.     

Trade effects of silver price fluctuations in 19th-century China: A macro approach

We assess the role of silver price fluctuations in Chinese trade and GDP during the late Qing dynasty, when China still had a bimetallic (silver/copper) monetary system, in which silver was mostly used for international trade. Using a structural VAR (SVAR) with blockwise recursive identification, we identify the impact of silver price shocks on the Chinese economy from 1867, when trade data became available, to 1910, one year before the Qing dynasty collapsed. We find that silver price shocks had a sizable impact on both imports and exports but only a very minor effect on the trade balance, only a marginal impact on growth, and almost no effect on domestic prices. Stronger effects were partly mitigated by inelastic export quantities. Generally, the effect of silver price shocks, while considerable, was only short-lived, displaying no persistence in either direction. We find that the bimetallic system in Qing China might have mitigated a potential positive effect of silver depreciation but did not reverse the effect, which – contrary to claims made in the previous literature – was responsible for neither the worsening trade balance nor the inflation and the quickly increasing imports that occurred during our sample period.