The thesis focuses on the question of undervaluation of the renminbi exchange rate to the U.S. dollar from the perspective of three selected alternative methods of calculating long term equilibrium exchange rate. In the case of calculations of behavioral equilibrium exchange rate and the natural real exchange rate, I performed calculations by using vector error correction model. In the case of fundamental equilibrium exchange rate I used error correction model. The input data used in the models are ranging from 1980 to 2010. Those are primarily value of nominal exchange rates, price levels and foreign trade. According to my results behavioural and fundamental equilibirum exchange rate show undervaluation of the renminbi to the year 2010, while the natural real exchange rate indicates a slight overvaluation of the renminbi to the year 2010.

This research analyzes the Brazilian exchange rate system and the exchange rate interventions after flexible exchange rate system implementation in 1999, and have like base the "fear of floating" approach, the exchange rate interventions theory and of the fact exchange rate classification. The evidences found for Brazil suggest that the exchange rate interventions illustrate objectives of the exchange rate debt reduction and do not follow the "fear of floating objectives". In the others empirical tests find a weak short run relation between exchange rate and domestic interest rate, exchange rate backups, domestic inflation and public debt in proportion to the GDP, and a strong short run relation between exchange rate and country risk, indicating that the movements of the exchange rate do not affect heavy the variables of the "fear of floating" and that do not believe that the country suffer from that problem. Confirming that idea, finds that of the fact exchange rate system is compatible with the jure exchange rate system, despite it find low exchange rate flexibility. / Esta pesquisa analisa o sistema cambial brasileiro e as intervenções cambiais após a implementação do sistema cambial flexível em 1999 e tem como base a abordagem do medo de flutuar , a teoria de intervenções cambiais e a classificação de sistemas cambiais de facto. As evidências encontradas para o Brasil sugerem que as intervenções cambiais ilustram objetivos de redução da dívida cambial e não seguem os objetivos da abordagem do medo de flutuar . Em outros testes empíricos encontra-se uma fraca relação de curto prazo entre taxa de câmbio e taxa de juros domésticos, reservas cambiais, inflação doméstica e dívida pública em proporção ao PIB, e uma forte relação de curto prazo entre taxa de câmbio e risco país, indicando que os movimentos da taxa de câmbio não afetam pesadamente as variáveis da abordagem do medo de flutuar e que, portanto, não há razões para crer que o país sofra desse problema. Confirmando essa idéia, encontra-se que o sistema cambial de facto é compatível com o sistema cambial de jure, apesar de encontrar-se uma baixa flexibilidade cambial. / Mestre em Economia

Cette thèse propose quatre contributions à l'étude de la politique monétaire dans le contexte de l'économie vietnamienne, depuis 1995-1996 jusqu’à maintenant.Le premier chapitre donne aperçu de l'économie vietnamienne et sa politique monétaire. Il s’agit d’un chapitre qui problématise les questions traitées économétriquement dans le reste de la thèse.Chapitre 2 montrent qu'il y a une relation à long terme entre le taux de change du marché noir et ses variables monétaires. Le taux de change officiel, l’écart de la masse monétaire et de taux d'intérêt intérieur ont des effets positifs significatifs sur le taux de change du marché noir tandis que la production intérieure réelle et le taux d'intérêt à l'étranger ont un impact négatif significatif sur cet indice. Chapitre 3 fournissent de fortes preuves relatives à la relation à long terme entre taux de change et ses fondamentaux monétaires relatifs. Bien que les signes des taux d'intérêt estimés soient ambigu, les coefficients estimés de la monnaie et du rendement sont compatibles avec toutes les variantes traditionnelles du modèle monétaire de la détermination du taux de change. Finalement, nous constatons que le pass-through du taux de change sur l'inflation est fort et rapide, et que le taux de change a un effet positif significatif sur l'inflation. La masse monétaire joue un rôle important dans la détermination de l'inflation alors que le taux d'intérêt ne semble pas avoir un impact significatif sur l'inflation. En outre, le prix du pétrole l’influence considérablement. Un choc de taux d’intérêts des États-Unis joue un rôle insignifiant dans l’explication de la variabilité des variables macroéconomiques domestiques. / This dissertation proposes four contributions to the study of monetary policy in the context of Vietnamese economy from 1995-96 onwards. The first chapter provides an overview of Vietnamese economy and its monetary policy. It provides some issues that are resolved econometrically in the rest of the thesis.The second chapter investigates the black market exchange rate determination. We find that there is a long-run relationship between black market exchange rate and its relative monetary variables. Official exchange rate, money supply differential and domestic interest rate have significant positive effects on black market exchange rate while domestic real output and foreign interest rate have meaningful negative impact on black market exchange rate.The third chapter examines how well versions of monetary models explain the VND/U.S dollar exchange rate. Estimates provide strong evidences of long-run relationship between exchange rate and its relative monetary fundamentals. Although the signs of estimated interest rates are mixed, estimated coefficients of money and output are consistent with any traditional variant of monetary model of exchange rate determination. Eventually, we find that the exchange rate pass-through to inflation is high and rapid, and exchange rate has a significant positive effect of exchange rate on inflation. Estimates also reveal that money supply plays a significant role in shaping inflation while interest rate does not seem to have a meaningful impact on inflation. In addition, oil price also has significant impact on inflation. U.S interest rate shock plays an insignificant role in explaining the variability of domestic macro variables.

Thesis (M. Com. (Economics)) -- University of Limpopo, 2021 / Investment as one of the main macroeconomic variables can ensure development of infrastructure and economic growth through increasing productivity and attracting investors. This study examined key determinants of investment activities by means of a comparative analysis between the SADC and BRICS groups during the period 2004- 2019. The key variables were the real exchange rate, real interest rate and trade openness. The analysis began by reporting unit roots tests, which paved way for employing Panel Autoregressive Distributive Lag (PARDL) methodology in the existence of different orders of integration. To estimate the long run relationship between the variables, we made use of the panel Johansen cointegration test, Pedroni test, Kao test and the Johansen Fisher cointegration test. Through the PARDL, the exchange rate and trade openness were found to be positive and statistically significant determinants of investment in SADC although statistically insignificant in the BRICS group. In addition, interest rates yielded insignificant results in the SADC region while, on the contrary, yielded a negative and statistically significant relationship in the BRICS group. The Granger causality test indicated a bi-directional causality in the exchange rate-investment and trade openness investment nexus for the SADC group while there was no causality in the BRICS group. It can be concluded that trade openness and exchange rate are key determinants of investment in the SADC region while interest rates are key in the BRICS group. It is therefore recommended that in order to attract investors and boost investment activities the SADC group need to focus more on exchange rate stability and trade openness while the BRICS group need to pay more attention to the flexibility of interest rates. This is beneficial on trading patterns, more for South Africa as it can be found in both groups.

This thesis is based on four essays in exchange rates and international finance. The first essay, examined in the second chapter, considers the long-run performance of the flexible-price monetary model as well as the real interest differential monetary model to explain the dollar–yen exchange rate during a period of high international capital mobility. We apply the Johansen methodology to quarterly data over the period 1980:01–2009:04 and show that the inadequacy of the two monetary models is due to the breakdown of their underlying building-blocks, money demand stability and purchasing power parity. In particular, modifying the monetary models by adjusting them for real stock prices to capture the stability of money demands on one hand and also for real economic variables such as productivity differential, relative government spending, and real oil price to explain the persistence in the real exchange rate on the other provide long-run relationships that appear consistent with the monetary models. Our findings of long-run weak exogeneity tests also emphasise the importance of the extended models employed here. The second essay, examined in the third chapter, is on the nature of the linkages between stock market prices and exchange rates in six advanced economies, namely the US, the UK, Canada, Japan, the euro area, and Switzerland, using data on the banking crisis between 2007 and 2010. Bivariate GARCH-BEKK models are estimated to produce evidence of unidirectional Granger causality from stock returns to exchange rate changes in the US and the UK, in the opposite direction in Canada, and of bidirectional causality in the euro area and Switzerland. Furthermore, causality-in-variance from stock returns to exchange rate changes is found in Japan and in the opposite direction in the euro area and Switzerland, whilst there is evidence of bidirectional causality-in-variance in the US and Canada. These findings imply limited opportunities for investors to diversify their assets during this period. The third essay, examined in the fourth chapter, considers the impact of net bond and net equity portfolio flows on exchange rate changes. Two-state Markov-switching models are estimated for the exchange rate of the US vis-a-vis Canada, the euro area, Japan and the UK. Our results suggest that the relationship between net portfolio flows and exchange rate changes is nonlinear for all cases considered, except that of the US dollar against the Canadian dollar. The fourth essay, examined in the fifth chapter, considers the impact of exchange rate uncertainty on different components of net portfolio flows, namely net equity and net bond flows, as well as the dynamic linkages between exchange rate volatility and the variability of these two types of flows. Specifically, a bivariate GARCH-BEKK-in mean model is estimated using bilateral data for the US vis-à-vis Australia, the UK, Japan, Canada, the euro area, and Sweden over the period 1988:01-2011:12. The results indicate that the effect of exchange rate uncertainty on net equity flows is negative in the euro area, the UK and Sweden, and positive in Australia, whilst two countries (Canada and Japan) showed insignificant responses. With regard to the impact of uncertainty on net bond flows, it is shown to be negative in all countries, except Canada (where it is positive). Under the assumption of risk aversion, this suggests that exchange rate uncertainty induces investors, especially those of the counterpart countries to the US, to reduce their financing activities to maximise returns and minimise exposure to uncertainty. This evidence is strong for the UK, the euro area and Sweden as opposed to Canada, Australia and Japan. Furthermore, since exchange rate volatility and the variability of flows are interlinked, exchange rate or credit controls on these flows can be used to pursue economic and financial stability.

本文採用1990年至2004年10月之月資料，建立人民幣出口、進口及雙邊貿易之三項實質有效匯率指數。考量中國大陸特殊政、經情勢，以及加入WTO後，進出口貿易更加自由化的前提下，運用中國大陸進出口值、物價水準，建立人民幣實質有效匯率指數，所依循理論較無疑慮，而援引之數據亦無太大爭議。 為貼近中共當局宣稱建立「符合市場經濟的靈活的匯率制度」，本文選擇與中國前十二大貿易夥伴組成一籃子貨幣，用以編纂人民幣實質有效匯率指數，將現行釘住美元之匯率改為釘住「一籃子」貨幣，能有效反映人民幣價值，亦可衡量中國外貿競爭力。 實證結果發現，相對於基期(2000年)，1990∼1993年指數多低於100，幣值高估；1994年匯率併軌，匯價發生結構性改變，幣值過度低估，後指數逐步下跌，1997年趨近均衡匯率。1997年亞洲金融風暴至2002年，甚至出現與均衡匯率並無太大偏離現象，即便有所失調亦能在短期內適切調整。2002年下半年至2004年年底，匯價低估趨勢確立，但偏離均衡匯率僅5％上下，幅度不太。 中國宣稱要「和平崛起」，自應承擔更多國際義務，人民幣升值是無可違逆的趨勢。為避免干擾經濟發展，勢必採行積極之管理浮動匯率制度，釘住一籃子貨幣並設定幅度狹窄之浮動區間「微調」。匯價調整時機，除衡酌自身經濟面的條件，尚須納入國際政治面的考量，由中共官方談話研判，人民幣升值，將是無預警的，出其不意的。 / In this paper monthly data from 1990 through October 2004 are used to establish real effective exchange rate indices of RMB for export, import and bilateral trading respectively. These real effective exchange rate indices are established taking the particular political and economic conditions in China into consideration, based on the increasingly liberation of importation and exportation after joining WTO, and using China’s import and export volume as well as its CPI. The theory used is doubtlessly correct and there is no much dispute on the data referred herein. To adhere with what the China government proclaimed: “a flexible exchange rate meeting the market economics”, currencies of its top 12 trade partners are selected for a basket of currencies instead of pegging to US dollar, in forming the real effective exchange rate indices. These indices can effectively reflect RMB’s true value, and measure China’s foreign trade competition. According to the result of verification, in comparing with the base period (2000), the indices for 1990 – 1993 were mostly less than 100, representing that RMB was overvalued. In 1994 the exchange rates were unified, resulting in a structural change on foreign exchange rate, RMB was undervalued. Then, these indices fell gradually, and the exchange rate tended to become balanced in 1997. From 1997, while the Asian financial crisis happened, till 2002, there was no much deviation from the balanced exchange rate, i.e., even there was any out of balance, it was adjusted properly within a relatively short time. From the second half of 2002 till the end of 2004, the tendency of undervaluation was ascertained, by the deviation was only about 5%, the range was not so much. Proclaiming that it is going to “peacefully rise”, China should assume more international liabilities, and the appreciation of RMB is a non-reversible trend. To avoid interference to its economic development, China has no choice but to adopt an aggressively control on its floating exchange rate regime, pegging to a basket of currencies and setting up a relatively narrow range of tunnel for “snaking”. In addition of its own political economy, international political situation must be taken into consideration for timing of its exchange rate adjustment. From some China government officials’ statements, it can be seen that appreciation of RMB would be done without any warning in advance and unexpectedly.

[pt] Foco de grandes controvérsias quanto seus efeitos sobre a taxa de câmbio, as intervenções cambiais tem sido amplamente utilizadas no processo de recomposição de reservas internacionais brasileiras. Muito embora não seja o principal objetivo do Banco Central do Brasil afetar o nível da taxa de câmbio, é possível que isso ocorra. Portanto, este trabalho busca responder à seguinte indagação: teriam as intervenções cambiais esterilizadas efeitos sobre a taxa de câmbio? Os resultados encontrados dão indícios de que tais efeitos existem, mas são de magnitude muito reduzida e de curta duração. / [en] Central object of big controversies regarding its effects on the exchange rate, sterilized interventions have been largely used by Brazil`s Central Bank on the buildup of the country`s international reserves. Although it is not his objective to affect the exchange rate level when buying foreign currency, there is a chance that it might happen. In this line, the primary question of this work is: Does sterilized interventions on the exchange market affect the exchange rate? The found results give some evidence that such effects exist, but are very small on its magnitude and of low duration.

Made available in DSpace on 2016-04-26T20:48:38Z (GMT). No. of bitstreams: 1 Paula Oda.pdf: 1429202 bytes, checksum: 4f6c371534db698c67b0bd2458432d25 (MD5) Previous issue date: 2013-05-25 / Exchange rate is an important element in the economic growth process in developing countries. It is supposed that the maintenance of this rate at relatively undervalued and competitive levels generates economic stimulus necessary to promote this growth by enabling greater competitiveness in the international trade, capable of producing positive expectations in economic agents, stimulating productive investment, and industrial development. However, it will be noticed that the process of financial globalization has resulted in an increase of capital flows, leading to significant effects on exchange rates in developing countries, and reducing the ability of monetary authorities in theses countries to control the exchange rate. The adoption of a flexible exchange rate policy, as proposed by orthodox theories, ended up allowing that the increase of speculative capital flow toward the peripheral economies provoking an intense appreciation of these currencies. This appreciation harmed the process of economic growth in these countries by reducing competitiveness in the international market, favoring an increase in imports, and discouraging productive investment, which could lead to a change in the productive structure in a way to incentive the targeting toward primary-export activities. Analyzing the performance of the Brazilian economy in the period between 1999 and 2011, this tendency toward currency appreciation and its impact on economic performance is noticed, resulting in a moderate growth, below the level observed in its major competitors. The results observed in the Brazilian economy suggest the need for a more active exchange policy, in order to preserve the exchange rate in undervalued levels, in a way to promote stimulus to economic growth. However, it is important to highlight that the Brazilian exchange market presents a structure that encumbers interventions that aim to preserve an exchange rate that favors economic growth, whereupon the spot market suffers intense influence from derivatives markets strongly speculative. This peculiarity should be explored in the discussion for a strategy of economic growth supported by an undervalued exchange policy / A taxa de câmbio é um importante elemento no processo de crescimento econômico dos países em desenvolvimento. Propõe-se que a manutenção dessa taxa em níveis relativamente desvalorizados e competitivos gera estímulos econômicos necessários para promover esse crescimento ao possibilitar maior competitividade no comércio internacional, capaz de produzir expectativas positivas nos agentes econômicos, estimular o investimento produtivo e o desenvolvimento industrial. No entanto, se observará que o processo de mundialização financeira resultou em um aumento dos fluxos de capitais, provocando efeitos significativos nas taxas de câmbio dos países em desenvolvimento e reduzindo a capacidade de controle cambial das autoridades monetárias desses países. A adoção de um regime de câmbio flexível, tal como proposto pelas teorias ortodoxas, acaba por permitir que o aumento dos fluxos de capitais especulativos em direção às economias periféricas provocasse uma intensa valorização dessas moedas. Essa valorização, prejudica o processo de crescimento econômico desses países ao reduzir a competitividade no mercado internacional, favorecer o aumento das importações e desestimular o investimento produtivo, podendo provocar uma alteração na estrutura produtiva de forma a incentivar o direcionamento à atividades primárioexportadoras. Ao analisar o desempenho econômico brasileiro no período entre 1999 e 2011 se observa essa tendência à apreciação cambial e seus impactos sobre o desempenho econômico, resultando em um crescimento moderado, abaixo do observado nos seus principais concorrentes. Os resultados observados na economia brasileira sugerem a necessidade de uma política cambial mais ativa, com o objetivo de preservar a taxa de câmbio em níveis desvalorizados, no sentido de promover estímulos ao crescimento econômico. No entanto, destaca-se que o mercado cambial brasileiro apresenta uma estrutura que dificulta as intervenções no sentido de preservar uma taxa de câmbio que favoreça o crescimento econômico, no qual o mercado à vista sofre intensa influência dos mercados derivativos fortemente especulativos. Essa particularidade deve ser explorada na discussão de uma estratégia de crescimento econômico sustentada por uma política de câmbio desvalorizado

The question of an equilibrium exchange rate has always been a debatable issue. Along with rapid growth of the Chinese economy over the past two decades, a number of studies have been undertaken to investigate whether or not the RMB exchange rate is at its long run ‘equilibrium’ level. Because the equilibrium exchange rate affects the competitiveness of a country’s economy, these studies have focused on whether or not the real exchange rate is misaligned with respect to its long-run equilibrium level. One of the main reasons for this concern is that effective management of the exchange rate system could help a country’s economy achieve internal and external balance. Otherwise, it could negatively influence the stability of a country’s financial economy, possibly resulting in regional financial crises. This study estimates time varying values of the equilibrium real effective exchange rate (EREER) and associated exchange rate misalignments for China in recent years (from the first quarter of 1999 to fourth quarter of 2007). The study focuses on the reduced-form equilibrium real exchange rate (ERER) model for developing countries presented by Elbadawi (1994) and follows Edwards’ (1989, 1994) work on models of exchange rate determination. We identify the terms of trade, openness, government expenditure, productivity, and money supply as important explanatory variables of the RMB long-run equilibrium value. We use the Johansen-Juselius (1990) co-integration procedure to analyse our data. Using the ERER model, our results show there is a cointegrating relationship between the real effective exchange rate and its economic fundamentals. Subsequently, compare to other previous studies discussed in Chapter 2, our restricted error-correction model suggests that the extent of the misalignment is not very large, moving in a narrow band of plus and minus 12 percent of the long-run equilibrium level during the sample period. Focusing on the RMB real exchange rate misalignment in recent years, our result shows that the RMB was undervalued by an average of 6.7 percent during the period of 2005Q:3-2007Q:4. Furthermore, our short-run empirical error correction model indicates that, on average, the real exchange rate takes over one quarter to reach its long-run equilibrium level.

The first part of this dissertation, entitled Exchange Rate Exposure Management, addressed the question whether there has been a relationship between changes in exchange rate volatility and financial results of Czech enterprises and therefore foreign exchange exposure management is justified. For this purpose, the empirical data of revenues and exports and imports in CZ-NACE sections were used. Statistically significant results were demonstrated in the Section C - Manufacturing, where it was confirmed that profitability of sales declines with increasing volatility of the exchange rate. The nominal exchange rate CZK/EUR was taken into consideration, while a recent thesis (Klecka, 2016) showed that the use of another type of the exchange rate does not provide a statistically significant difference. In the second part a simple model called Estart was created in order to quantify the maximum impact of unexpected exchange rate changes in the profitability of a company and thus in order to start with the management of the exchange rate exposure. The formula for calculating exchange rate exposure is simple and requires only a few inputs as company total revenues, total expenses, the percentage of revenues in foreign currency and the percentage of expenditure in foreign currency. In order to quantify the maximum impact recommended percentage variations dependent on the time horizon were determined from the historical data of the exchange rate CZK/EUR. The company then receives initial information about the maximum impact of unexpected exchange rate change on their profitability and hence for example the potential maximum amount that makes sense to invest in exchange rate hedging. The model is also suitable for calculating the maximum impact for the specific payables and receivables. The Model Estart is for its simplicity usable particularly in small and medium-sized enterprises, which currently begin to address the question of the impact of exchange rate change on their profitability for example because of announcements of Czech National Bank concerning the end of the intervention that has been depreciating domestic currency since 2013 and also the complicated situation in the Eurozone. The next necessary step is to use more sophisticated methods in accordance with the principles of foreign exchange rate exposure management in order to quantify the impact of unexpected changes in the exchange rate on the profitability, respectively on the value of the company, mainly because of the management of the operational exposure, which is crucial and which is not addressed by this simple model.