DETERMINANTS OF INFLATION IN GHANA: AN EMPIRICAL INVESTIGATION

This paper provides an empirical analysis of the factors accounting for inflation dynamics in Ghana using the bounds test and other econometric approaches. We find that real output, nominal exchange rate, broad money supply, nominal interest rate and fiscal deficit play a dominant role in the inflationary process in Ghana. To the extent that output growth by far has the strongest impact on inflation, targeting supply‐side constraints will help moderate price inflation. The paper concludes that inflation in Ghana is explained by a combination of structural and monetary factors consistent with prior studies.     

Financial dualism: An analysis of the effects of informal finance on formal finance in West African Economic and Monetary Union (WAEMU) countries

This paper analyzes the effects of informal finance on formal finance in West African Economic and Monetary Union (WAEMU) countries. To this end, it uses a Probit model with a binary endogenous regressor and data from the Global Findex database, 2021. The findings indicate that having already saved informally positively affects the behavior of individuals to save formally. They also indicate that informal financial credit positively affects formal financial credits in the WAEMU. These findings indicate that formal finance is complementary to informal finance in the WAEMU. On the other hand, the findings show that labour force participation, mobile banking use and online banking use increase the likelihood of use of formal and informal services in the WAEMU. This paper suggests that formal financial institutions (mainly banks and microfinance institutions) should strengthen their collaboration with actors (money keepers, itinerant bankers, tontines systems) involved in the provision of informal financial services to populations in order to improve formal financial intermediation in the WAEMU.     

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.     

On Determinacy and Learnability in a New Keynesian Model with Unemployment

We analyse determinacy and stability under learning (E‐stability) of rational expectations equilibria in a new Keynesian model of inflation and unemployment, where labour market frictions due to costs of hiring workers play an important role. We derive results for alternative specifications of monetary policy rules and alternative values of hiring costs as a percentage of gross domestic product. We find that in general the region of indeterminacy and E‐instability in the policy space increases with hiring costs. Thus, higher hiring costs – consistent with European and South African “sclerotic” labour market institutions – seem to play an important part in explaining inflation and unemployment instability. Moreover, under lagged data‐based rules, the area where monetary policy delivers both determinacy and E‐stability shrinks. These rules also perform worse according to these two dimensions when hiring costs go up. Finally, under expectations‐based rules an additional explosive region is introduced. For South Africa, a rule based on current data – not unlike the original Taylor rule – works better than a forward‐looking rule.     

Revisiting the Phillips curve for Indonesia: What can we learn from regional data?

This study seeks new empirical evidence of the Phillips curve in Indonesia, an emerging and geographically diversified economy. There are three important contributions from this research. First, applying panel econometric method to exploit regional variation, the study resolves the issue of using on-target national inflation rates that potentially causes weakening inflation-output link. Second, the research examines the relevance of mining industry for output gap measurement at regional level. Third, it highlights the differences in the Phillips curve between the west and east regions owing to their different underlying economic structures. Our estimation using regional data support the validity of the Phillips curve relationship in Indonesia. Backward-looking inflation expectations, exchange rate dynamics and international prices also significantly affect inflation. In addition, the effect of output gap on inflation is larger if the mining sector is excluded from output gap measurement. Finally, we find apparent differences between the west and the eastern regions in the slope of Phillips curve, as well as in the degree of inflation persistence and exchange rate pass-through. The results are robust to alternative specification. Our study adds significantly to the empirical literature on the Phillips curve and have meaningful policy implications.     

Persistence in International Inflation Rates

We test for fractional dynamics in inflation rates based on the consumer price index (CPI) for 27 countries and inflation rates based on the wholesale price index (WPI) for 22 countries. The fractional differencing parameter is estimated using semiparametric and approximate maximum likelihood methods. Significant evidence of fractional dynamics with long-memory features is found in both CPI- and WPI-based inflation rates for industrial as well as developing countries. Implications of the findings are considered, and sources of long memory are hypothesized.     

FOOD INFLATION IN SOUTH AFRICA: SOME IMPLICATIONS FOR ECONOMIC POLICY

This paper analyses the trends in food price movements in South Africa between 1980 and 2008. There are three main results emanating from the analysis in this paper. Firstly, food price movements have played a large role in generating inflationary episodes in South Africa. Secondly, while external influences do matter, South African food price movements are mainly due to domestic influences. This implies that national policy has an important role to play in taming domestic food price inflation. Thirdly, given the strong second round impacts, food price movements warrant special attention in monetary policymaking. Core measures of inflation that exclude food price movements may not accurately reflect the underlying inflationary pressures in the economy and could compromise the attainment of the goal of price stability.     

Estimating Open Economy New Keynesian Phillips Curve for Korea

We estimate the open economy new Keynesian Philips curve (NKPC) to characterize the inflation dynamics of Korea. While recent studies show that the NKPC holds for the pre‐currency crisis period, the empirical evidence is inconclusive for the post‐crisis period. Has globalization increased the role of global factors relative to domestic factors? Can labor income share still serve as a good measure of real marginal cost following the structural break? To address these issues for the post‐crisis period, we use two types of open NKPC: the relative prices model and the incomplete pass‐through model. The estimation of both models indicates that the forward‐looking behavior is important, and its role is reinforced in an open economy specification. Both NKPC models also show that the external factors are more relevant inflation drivers than the domestic factors.     

Inflation Transmission in Greater China

This paper examines inflation dynamics in Greater China. Using an asymmetric error correction model, we investigate how inflation in Hong Kong and Macao are related to inflation in Chinese Mainland. Our results based on data from July 1997 to December 2012 reveal that a long‐term equilibrium relation exists between inflation in Chinese Mainland and inflation in both Hong Kong and Macao, the two Special Administrative Regions of China. The degree of inflation pass‐through is higher for Macao than for Hong Kong. Moreover, we find no evidence of asymmetries in either Hong Kong and Macao's adjustment speeds towards long‐run equilibrium or in the short‐run pass‐through of accelerating or decelerating inflation in the Mainland. Collectively, our results show a close relationship among price dynamics of the three economies and call for a reconsideration of the exchange rate anchor in the Greater China Region.     

Inflation dynamics and monetary policy transmission in Vietnam and emerging Asia

This paper provides an overview of inflation developments in Vietnam in the years following the doi moi reforms, and uses empirical analysis to answer two key questions: (i) what are the key drivers of inflation in Vietnam, and what role does monetary policy play? and (ii) why has inflation in Vietnam been persistently higher than in most other emerging market economies in the region? It focuses on understanding the monetary policy transmission mechanism in Vietnam, and in understanding the extent to which monetary policy can explain why inflation in Vietnam has been higher than in other Asian emerging markets over the past decade.     

Bilateral Trade Performance in West Africa: A Gravity Model Estimation

This study provides empirical insights on the functioning of regional trade agreements within the Economic Community of West African States (ECOWAS) by identifying bilateral trade barriers that affect the extent of trade flows among member countries. Also, it highlights some trade barrier indicators that are rarely covered in extant studies, such as the multilateral resistance term, the extent of trade complementarity, and the presence of economic integration agreements among ECOWAS member countries. We then provide augmented gravity model estimation on the determinants of bilateral trade in the region. We find, among other things, that trade complementarity had a positive and significant effect on bilateral trade within the sub‐region region. Other important determinants of intra‐regional trade include multilateral trade resistance and economic integration agreements — meaning that countries with some kind of agreement like the West African Economic and Monetary Union (WAEMU) tend to trade more among themselves than other member countries.     

The Economic Effects of Integration in the Central African Economic and Monetary Community: Some General Equilibrium Estimates for Cameroon

In this paper we quantitatively assess the impact of the CEMAC on its largest member, Cameroon. We find that Cameroon will gain between 0.41 and 0.62 percent of its GDP. Our decomposition shows that the part of the agreement that calls for further preferential reduction of tariffs is immiserizing, although given the low level of intra‐regional imports, the quantitative impact is quite small. Improved access to partner country markets accounts for about one‐quarter of the gains. We find, however, that about three‐quarters of the gains come from reduction of Cameroon’s tariff against the rest of the world. Moreover, our estimates for Cameroon’s unilateral trade liberalization show that it can gain marginally even more from full unilateral trade liberalization than it can from implementation of the CEMAC arrangements. Our results incorporate, in an otherwise small open economy model, the fact that Cameroon may possess regional market power, and we assess the difference in results with models that have no regional market power. Dans cet article, nous évaluons quantitativement l’impact de la CEMAC sur son pays membre le plus important par son poids économique: le Cameroun. Nos estimations indiquent que le Cameroun enregistrera un gain compris entre 0,41% et 0,62% de son PIB. La décomposition de cet impact montre que l’approfondissement des préférences tarifaires réduit le bien‐être, même si compte tenu du faible niveau des importations intra‐régionales, son impact quantitatif apparaît assez faible. L’amélioration de l’accès aux marchés des partenaires régionaux explique environ un quart des gains. Cependant, environ trois quarts des gains sont expliqués par la réduction par le Cameroun de ses tarifs vis‐à‐vis du reste du monde. De plus, nos estimations indiquent qu’àla marge, le Cameroun gagnerait plus d’une libéralisation commerciale unilatérale que de la mise en oeuvre des accords de la CEMAC. Nos résultats incorporent dans ce qui est par ailleurs un modèle d’une petite économie ouverte, le fait que le Cameroun puisse posséder un pouvoir de marché régional, et nous comparons les résultats àceux des modèles sans pouvoir de marché régional.     

The demand for M3 and inflation forecasts: An empirical analysis for Switzerland

The Demand for M3 and Inflation Forecasts: An Empirical Analysis for Switzerland. — This paper argues that money should continue to play an important role in monetary policy even if a central bank pursues a strategy based on inflation forecasts. Within the context of an error correction model, the paper delivers empirical evidence that both the growth rate of the monetary aggregate M3 and the size of excess M3 incorporate useful information with regard to future inflation in Switzerland. This evidence strongly suggests that money should remain an important indicator for monetary policy.     

Government Securities Markets in the West African Economic and Monetary Union: A Review

Abstract: The paper reviews trends and developments in the WAEMU government securities markets. Issuance of debt has grown more than tenfold since 2000 in the region, driven by the rapidly growing Treasury bills segment. The elimination of central bank financing of government has been the catalyst of this growth while excess liquidity in the banking system has helped sustain the market. Common institutions, such as a regional central bank and uniformity of issuance and distribution procedures have led to high cross‐border transactions. However, supply and demand conditions are more important than economic fundamentals in determining Treasury bill rates.     

IS THERE AN ASYMMETRIC BEHAVIOUR IN AFRICAN INFLATION? A NON‐LINEAR APPROACH

In this paper we test the inflation persistence hypothesis as well as model the long‐run behaviour of inflation rates in a pool of African countries using a non‐linear framework. In order to do so, we rely on unit root tests applied to non‐linear models and fractional integration. The results show that the hypothesis of inflation persistence does not hold empirically for most of the countries. In addition, the estimated models (logistic smooth transition autoregressions) are stable in the sense that the variable tends to remain in the regime (low inflation or high inflation) once reached, and changes between regimes are only achieved after a shock. The results also indicate that the effects of the shocks on inflation tend to die out; exogenous factors, i.e. supply shocks and inertia may be causing this outcome, as they play a substantial role in the determination of the inflation rates for our selected African countries.     

(De-)Stabilizing two-country macroeconomic interactions in an estimated model of the U.S. and the Euro Area

In this paper a semi-structural macroeconomic model based on gradually adjusting wages and prices and hybrid, cross-over inflation expectation formation is analyzed and estimated with aggregate data of the U.S. and the Euro Area. Besides comparing, among other things, the determinants of the wage- and price inflation dynamics in both economies, the role of different macroeconomic transmission channels for the stability of the two-country system is investigated.     

Trade Creation and Trade Diversion Effects in the Economic Community of Central African States

This paper analyzes trade creation and trade diversion effects in the Economic Community of Central African States (ECCAS) between 2007 and 2016 using the Gravity Model. The results show that variables like GDP, population, bilateral distance, political stability and corruption are crucial for the determination of bilateral trade flow. More importantly, the study finds that there is neither trade creation nor trade diversion in the ECCAS region. Thus, the FTA in ECCAS did not lead either to reinforce intra‐trade or to emphasize trade with non‐member countries. Yet, the Economic Community of Central African States (CEMAC), the Common Market for Eastern and Southern Africa (COMESA) and the East African Community (EAC) have been trade creating during the aforementioned period. Therefore, the paper recommends policy makers to promote more regional integration within ECCAS notably through the construction of intra‐zone communication means and the effective establishment of the free movement of people and goods within the region.     

通货膨胀及其影响因素的动态分析

文章通过建立宏观经济模型对1995--2010年间我国通货膨胀的动态走势进行了研究。结果表明：我国货币市场不仅存在实际货币需求、真实GDP和名义利率间的长期均衡关系,在贸易市场上还存在名义汇率、国内价格水平和国外价格水平之间的长期均衡关系。误差修正模型表明通货膨胀的短期波动依赖于货币供给、名义利率和实际GDP的变化,且具有很强的通货膨胀惯性,货币市场和贸易市场非均衡对通货膨胀的变化也有重要影响。     

Learning and Estimation of the New Keynesian Phillips Curve Models

The extant literature is split on the best measure of marginal cost in the New Keynesian Philips Curve, with the output gap and the labor share being the most commonly advocated proxy measures. Which one is the best measure? In this article, I assume that agents update their understanding and expectation period by period, a learning process. In terms of econometrics, I use a recursive Vector Autoregression approach and conduct a forecasting exercise that considers updating of information sets used for formation of expectation. I find that the traditional output gap measure is a more significant variable explaining the dynamics of the U.S. inflation rate, as compared with a measure of the labor income share. Furthermore, the role of the output gap cannot be replaced using lagged values of inflation. Instead, both the output gap and lags of the actual inflation rate are important determinants of inflation.     

Determinants of inflation in India

The paper attempts to identify the determinants of inflation in India in a multivariate econometric framework using quarterly data from Q1: 1996–1997 to Q3: 2013–2014. The identified determinants of domestic inflation such as crude oil prices, output gap, fiscal policy and monetary policy, and their relation with inflation is studied in a structural vector auto regression (SVAR) model. Further, the temporal changes in inflation dynamics are analyzed using a time varying parameter SVAR model with stochastic volatility. It was found that inflation dynamics in India have changed over time with various determinants showing significant time variation in the recent years, particularly after the global financial crisis.