Research supported by MIT's Center for Energy Policy Research.

The control of inflation requires a forecast of the future path of the price level and its indicators. Targeting inflation directly requires that the central bank (SARB) form forecasts of the likely path of prices paying close attention to a variety of indicators that shows the predictive power of inflation in the past periods. Inflation indicators might be cointegrated with the rate of inflation to predict the future inflation rates. Forecasting inflation may be very difficult at a particular period due to the fact that the array candidate indicators of inflation may neither be very stable nor very strong in their relationships with the rate of inflation. Although this might be the case, this research uses testable effects of each of the South African inflation indicators to the rate of inflation using econometrics tools to find that they have a long run trend with the rate of inflation in South Africa. It has been found that each of the indicator variables has a long run relationship with the rate of inflation. The major conclusion is that inflation indicator variables like money supply (M3), oil price, gold price, total employment, interest rates, exchange rates and output growth can be useful inflation indicators in targeting the future trends of inflation in South Africa according to the data used in this research although some studies in some countries find that inflation targeting is an insufficient framework for monetary policy in the presence of financial exuberance. The money supply, the oil prices, interest rates, the exchange rates, prices of gold, the employment and output growth are co-integrated with the rate of inflation representing a long-run relationship.

Is inflation targeting an appropriate framework for monetary policy? Experience from the inflation-targeting countries countries are optimistic about inflation targeting as a monetary-policy framework. South Africa is also following this trend. The international literature review of the topic offers lessons to be learnt from the common experience of the countries considered. It shows that inflation targeting is not a universal remedy to modern economic ills -- there is an emerging danger of assigning monetary policy a larger role than that which it can perform; a danger of expecting monetary policy to accomplish tasks that it cannot achieve; and a danger of preventing monetary policy from making the contribution that it is capable of doing. Therefore, inflation targeting cannot address all the macroeconomic problems that face many countries, except for inflation. Nonetheless, it plays a crucial role in improving macroeconomic performance. / Economics / M.A. (Economics)

The financial crisis of 2007-2009 led to a large increase in the government debt of all advanced economies. In the United States, the debt burden reached levels not seen since the Second World War. In Europe, high fiscal stress evolved into a sovereign debt crisis. My thesis focuses on debt dynamics in advanced economies and the design of policies that can stabilize their fiscal burden. In the first chapter, I provide new evidence and theory on US debt dynamics and their relation with long-term growth forecasts. In the second chapter, I document a novel dataset on the maturity structure of sovereign debt of Euro Area (EA) countries and study the effect of the maturity composition on debt dynamics. Finally, in the third chapter, I analyze empirically the role of debt management in stabilizing the fiscal burden of countries in the EA.<p><p>Chapter 1: Sovereign Debt in the US and Growth Expectations<p><p>This chapter studies the effect of changes in expectations of long-term GDP growth on US government debt and deficits. Long-term growth expectations are an essential determinant of expected future revenue growth and fiscal solvency. I present evidence that US government debt and deficits are positively correlated with long-term GDP (and revenue) growth forecasts from the Congressional Budget Office between 1984 and 2012. This is robust to controlling for current growth and to using à-la-Kalman estimated forecasts for a longer time span. This stylized fact is novel in the macroeconomics literature and I develop a new model of government behavior that explains it.<p>My model features endogenous (forward-looking) purchasing behavior for the government. This distinguishes my model from standard macro theories that assume exogenous government purchases, or ad-hoc backward looking policy rules for government purchases. It builds on the recent ‘long-run risks’ literature by assuming shocks to the trend growth rate of total factor productivity. The model matches the observed positive correlation between fiscal deficits and the trend growth rate, based on the government’s desire to smooth public consumption over periods of higher (or lower) long-run productivity growth. <p><p>Chapter 2: Government Debt Maturity and Debt Dynamics in EA Countries<p><p>This chapter presents a new comprehensive database on sovereign debt stocks and yields, at all maturities, for six EA countries: Belgium, Finland, France, Germany, Italy and Spain between 1991 and 2013. I constructed this database by combining information from different sources (treasuries, national central banks and statistical offices), on a security-by-security basis. A recent literature has shown the importance of debt maturity management in the US - e.g. Hall and Sargent (2011) - however, due to lack of data, this key issue remained unstudied for the EA. Thus, I use my database to study the effect of debt maturity management on the evolution of government debt in EA countries. <p>My main finding is that debt maturity also had an important effect in debt dynamics of the EA. The debt maturity structure affects debt dynamics because longer maturity shields the government budget from changes in interest rates. In general, interest rates in the EA have fallen since 1991 while treasuries in the region extended debt maturity. Thus, an increasing number of long-term bondholders experienced large capital gains. Counterfactual simulations show the impact of a different maturity structure on the evolution of debt and suggest that extending debt maturity in 2014 and 2015 would result in lower debt ratios by 2022. I also estimate the debt-to-GDP erosion induced by higher current and future inflation and find that inflation would lower the fiscal burden in EA countries much more than in the US.<p><p>Chapter 3: Quantifying the Role of Debt Management for Fiscal Self-Insurance in the EA<p><p>The last chapter provides evidence of debt management being an effective tool for protecting the government budget from fiscal spending shocks in the EA. In particular, I document that sovereign bonds of EA countries had a significantly lower real return in response to government spending shocks between 1991 and 2013. Importantly, longer bond maturity generally implied a larger drop in returns. This is in line with theories claiming that long-term debt provides fiscal self-insurance. However, my finding suggests that medium-term debt is more effective in hedging against spending shocks. <p>I identify government spending shocks in a Structural VAR model estimated with both aggregated quarterly fiscal data for the EA and stacked data from individual countries. I also use a simple FAVAR model to distinguish between common and idiosyncratic (country-specific) shocks and document that the former risk was hedged more effectively. The introduction of the Euro reduced the absorption of idiosyncratic shocks (relative to common shocks) by bond returns. However, the European debt crisis brought the degree of fiscal self-insurance against country-specific shocks back to pre-Euro levels. Finally, debt maturity seems to play a minor role in the absorption of country-specific shocks by the return on sovereign bonds. <p> / Doctorat en Sciences économiques et de gestion / info:eu-repo/semantics/nonPublished

The fact that South Africa has a floating exchange rate policy as well as an open trade policy leaves the country’s import, producer and consumer prices susceptible to the effects of exchange rate movements. Given the central role that inflation targeting occupies in South Africa’s monetary policy, it becomes necessary to determine the nature of influence of exchange rate changes on domestic prices. To this end, this thesis examines the magnitude and speed of exchange rate pass-through (ERPT) to import, producer and consumer prices in South Africa. Furthermore, it explores whether the direction and size of changes in the exchange rate have different pass-through effects on import prices, that is, whether the exchange rate pass-through is symmetric or asymmetric. The paper uses monthly data covering the period January 1980 to December 2005. In investigating ERPT, two main stages are identified. The initial stage is the transmission of fluctuations in the exchange rate to import prices, while the second-stage entails the pass-through of changes in import prices to producer and consumer prices. The first stage is estimated using the Johansen (1991) and (1995) cointegration techniques and a vector error correction model (VECM). The second stage pass-through is determined by estimating impulse response and variance decomposition functions, as well as conducting block exogeneity Wald tests. The study follows Wickremasinghe and Silvapulle’s (2004) approach in estimating pass-through asymmetry with respect to appreciations and depreciations. In addition, the thesis adapts the analytical framework of Wickremasinghe and Silvapulle (2004) to investigate the pass-through of large and small changes in the exchange rate to import prices. The results 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 some evidence that pass-through is higher in periods of small changes than large changes in the exchange rate, which supports the menu cost theory when invoices are denominated in the exporters’ currency.

This study investigates the contribution of bank credit extension to the private sector to inflation in South Africa, covering the period 1970:1-2006:4. The long-run impact of bank credit on inflation is investigated by means of the Johansen co integration model. The short-run ynamics of the inflation is subsequently modelled by means of the Vector Error Correction Model (VECM). Using the Johansen methodology, the study identifies two co integrating equations linking inflation and its eterminants. The results suggest that the long-run relationship between inflation and bank credit to the private sector is negative and statistically significant at 10% level. The determinants that are significant at 5% level are: money supply, real gross domestic product, the money market rate, rand/dollar exchange rate and imports. The results are consistent with previous findings. The speed of adjustment in response to deviation from the equilibrium path was found to be negative at 10.56% per quarter, which is consistent with findings by Ohnsorge and Oomes (2003) for Russia. Both the signs and the magnitude of the coefficients suggest that the co integrating vector describes a long-run inflation equation. The impulse response functions confirm the theoretical expectations except for the import prices. The most persistent and significant shocks observed are on impulse response functions of money supply and bank credit to the private sector. The variance decomposition results also suggest that inflation responds quicker to innovations from money supply and the money market rate. The overall results provide evidence that the surge in inflation is associated with an increase in money supply as well as the instability in exchange rate. The effects of exchange rate fluctuation on inflation are reflected through changes in import prices. Based on the results we conclude that an increase in bank credit during the period 1970:1-2006:4 had a negative mpact on inflation in South Africa.

A review of strategic thinking literature indicates that research has tended to focus on experiences contributing to strategic thinking, the strategic thinking perspectives that executives are likely to follow based on the environments in which they have developed their strategic competencies, and examining executives’ cognitive maps within the context of strategic management (O’ Shannassy 2003; Kutschera, and Ryan, 2009; Meyer, 2007). As an expansion of these principles and foundations of strategic thinking, this research was a study of the extent to which strategic thinking perspectives are utilised during macro environmental turbulence. According to Cravens et al. (2009: 31) volatility, reinvention, and fundamental changes in markets present unprecedented challenges to researchers and executives. “Unfortunately, too often traditional conceptual models and theories fail to provide adequate insight for coping with this new and rapidly changing business environment. Traditional market perspectives and conceptual logic may even blind researchers and strategic decision makers to the real threats present in the changing competitive landscape and new market space, and to opportunities for added value which can be uncovered and exploited” Cravens et al. (2009: 31). Hyperinflation in Zimbabwe was a major problem from 2003 to April 2009, when the country suspended its own currency and for the next five years the country continued to struggle with various macro environmental challenges. It is this backdrop that makes this research intriguing, where the soundness of any organisation is said to be crucially linked to the soundness of the macro environment, including macroeconomic policies as well as internal governance, market discipline; regulation and supervision (Louw and Venter, 2010). The research was a case study of BancABC Zimbabwe and focused on the period 2009 to 2013. BancABC Zimbabwe is a subsidiary of ABC Holdings Limited which is listed on the Botswana and Zimbabwe stock exchanges (BancABC, 2012). The aim of the study as the first key activity was to explore and describe how the BancABC executives responded to the critical macro environmental incidents identified, at a management or executive team perspective, and secondly, whether the rational reasoning or generative reasoning perspective was dominant during the period of turbulence. The goal is to gain insights of the strategic thinking process followed by executives during a period of macro-environmental turbulence. Literature defines strategic thinking concept as the cognitive process undertaken by executives in relation to problem solving in the business context. Two main perspectives are discussed: Strategic thinking as a science (rational thinking) is the prescriptive, structured nature of strategic thinking; arguments are that it is a less complex perspective for executives to adopt. Strategic thinking as an art (generative thinking) is the perspective that allows the strategist to think outside the box and be more creative about solving strategic problems. The discussion presents how the two perspectives can be used to complement each other and provide a more robust strategic thinking framework. The multi-perspective approach to strategic thinking recommends the right balance between analysis, intuition and creativity can be used to create new frameworks and innovative solutions. The ability to balance these strategic thinking perspectives enables executives to solve strategic problems (Linkov, 1999). The research findings highlighted the effect of time and availability of information on the strategic thinking perspective adopted by executives during times of uncertainty. It was noted that when time and information were available, executives appeared to use the rational strategic thinking perspective, while if there was limited time and information to solve problems the generative thinking perspective was dominantly used. Further the importance of integrative strategic thinking which facilitates the use of both intuition and analysis when solving strategic problems in a turbulent macro environment was also highlighted. The research thesis adopted the structure of a case study, relying on the critical incident technique to create the context of the study; and can be used to explore and discuss strategic thinking for teaching purposes. The results of the study can be recognised as a contribution towards the development of strategic thinking particularly in times of turbulence. It can also form the basis for future studies in the context of strategic thinking.

In 1993, Kenya liberalised its trade policy and allowed the Kenyan Shillings to freely float. This openness has left Kenya's domestic prices vulnerable to the effects of exchange rate fluctuations. One of the objectives of the Central Bank of Kenya is to maintain inflation levels at sustainable levels. Thus it has become necessary to determine the influence that exchange rate changes have on domestic prices given that one of the major determinants of inflation is exchange rate movements. For this reason, this thesis examines the magnitude and speed of exchange rate pass-through (ERPT) to domestic prices in Kenya. In addition, it takes into account the direction and size of changes in the exchange rates to determine whether the exchange rate fluctuations are symmetric or asymmetric. The thesis uses quarterly data ranging from 1993:Ql - 2008:Q4 as it takes into account the period when the process of liberalization occurred. The empirical estimation was done in two stages. The first stage was estimated using the Johansen (1991) and (1995) co integration techniques and a vector error correction model (VECM). The second stage entailed estimating the impulse response and variance decomposition functions as well as conducting block exogeneity Wald tests. In determining the asymmetric aspect of the analysis, the study followed Pollard and Coughlin (2004) and Webber (2000) frameworks in analysing asymmetry with respect to appreciation and depreciation and large and small changes in the exchange rate to import prices. The results obtained showed that ERPT to Kenya is incomplete but relatively low at about 36 percent in the long run. In terms of asymmetry, the results showed that ERPT is found to be higher in periods of appreciation than depreciation. This is in support of market share and binding quantity constraints theory. In relation to size changes, the results show that size changes have no significant impact on ERPT in Kenya.

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The topic researched for this project will be foreigh exchange hedging; the available forms, the uses, the procedures, and the value. This project will expand beyond the typical research and examine the value of hedging through the use of different foreign exchang currency trading strategies to small multinationational corporations.