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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
81

共整合統計套利交易策略運用-台灣股票與指數期貨市場

楊傑翔 Unknown Date (has links)
In this study we examine the notion of applicability of cointegration statistical arbitrage in Taiwan stock, electronic and financial index future. We form the trading pairs by construction the cointegration relation pairs in the same industry and the same type of business. The basic concept we applied in this way is that market neutral, and contrarian investment. We execute three different kind of pairs. They are individual stock vs. stock pairs, Finance Sector Index Futures and financial stocks, and Electronic and Finance Sector Index Futures vs. Electronic and Financial stock portfolio. The results from the three different kind of combination are all showing the feasibility. of our statistical model.
82

Essays in econometrics and forecasting

Fawcett, Nicholas William Peter January 2008 (has links)
Whether we would like to model imports and exports, or forecast inflation, structural variation in an economy frequently causes problems. This thesis examines such variation in two dimensions: first, in a cross-section of individuals, and secondly, over time. A panel of manufacturing industries in several developed countries reveals that there is substantial variation across sectors, in the response of trade to changes in prices and incomes. Ignoring this heterogeneity can render conventional results biased and inconsistent, so a number of robust methods are used to obtain reliable estimates of long-run and short-run trade relationships. The findings point to common behaviour across sectors, which could be due to similarities in technology. The impact of structural breaks over time is examined in the second part of the thesis. Unpredictable shifts in deterministic terms such as the mean of a process are shown to generate significant forecast failure, and even the methods used to evaluated forecast accuracy are affected. Using the Kullback-Leibler discrepancy to measure the size of forecast errors, various robust mechanisms are discussed, that do not fail systematically after a break. Although they can provide a degree of insurance if a shift does occur, this comes at a cost if there is no change, and in the presence of measurement error they can exacerbate the uncertainty surrounding a forecast. An empirical illustration with a model of UK money demand provides some support for the automatic correction mechanisms, although there does seem to be a role for direct modeling of a break process.
83

Fractional Integration and Political Modeling

Lebo, Matthew Jonathan 08 1900 (has links)
This dissertation investigates the consequences of fractional dynamics for political modeling. Using Monte Carlo analyses, Chapters II and III investigate the threats to statistical inference posed by including fractionally integrated variables in bivariate and multivariate regressions. Fractional differencing is the most appropriate tool to guard against spurious regressions and other threats to inference. Using fractional differencing, multivariate models of British politics are developed in Chapter IV to compare competing theories regarding which subjective measure of economic evaluations best predicts support levels for the governing party; egocentric measures outperform sociotropic measures. The concept of fractional cointegration is discussed and the value of fractionally integrated error correction mechanisms are both discussed and demonstrated in models of Conservative party support. In Chapter V models of presidential approval in the United States are reconfigured in light of the possibilities of fractionally integrated variables. In both the British and American case accounting for the fractional character of all variables allows the development of more accurate multivariate models.
84

Les principaux déterminants de la dynamique du capital-risque / The main determinant of venture capital

Lounes, Malika 11 July 2012 (has links)
Cette thèse porte sur les déterminants fondamentaux du dynamisme du capital-risque. Notre démarche de recherche vise essentiellement à identifier les facteurs qui ont conduit au développement phénoménal de cette activité aux États-Unis et qui seraient susceptibles d'expliquer le retard de l'Europe en matière du capital-risque. On peut inférer de ce travail plusieurs conclusions. D'une part, l'existence d'un marché financier national dédié aux valeurs technologique ne peut être considérée comme le principal facteur expliquant l'avantage comparatif des États-Unis en termes du capital-risque. D'autre part, la demande et la performance anticipée constituent les fondements et la spécificité du capital-risque américain. Leur faiblesse dans les pays européens peut expliquer le retard de ces derniers. Nous avons également mis en évidence l'importance de l'environnement scientifique et technologique pour le dynamisme du capital-risque. Un résultat qui peut d'un coté, expliquer le retard des pays européens qui souffrent d'insuffisances en termes de dépenses en R&D. De l'autre, il peut rendre compte du succès de deux modèles de capital-risque basés sur la stratégie de recherche et développement, à savoir la Suède et Israël. / He thesis focuses on the determinants of venture capital dynamism. Our approach aims not only at identifying factors that led to the phenomenal development of this activity in the United States, but also at explaining why Europe still cannot catch up in terms of venture capital. Several conclusions can be inferred from this thesis. On the one hand, an active financial market cannot be regarded as the main factor explaining the comparative advantage of the U.S. in terms of venture capital. On the other hand, other more important factors may explain the superiority of U.S. venture capital as well as the European countries delay. Estimates conducted to highlight the importance of demand and of the expected performance for the venture capital dynamism. These two factors represent the strengths and the specificity of the U.S. venture capital. The estimates have also highlighted the role of scientific and technological environment, that can explain the delay of European countries which suffer from shortcomings in R&D spendings and, might illustrate the success of two venture capital models based on the research and development strategy: Sweden and Israel.
85

Stock market integration between the BRICS countries : Long-term investment opportunities / Aktiemarknadsintegration mellan BRICS länderna : Långsiktiga investeringsmöjligheter

Konradsson, Richard, Porss, Theodor January 2019 (has links)
This paper investigates the long-term diversification opportunities that exists for global investors among the BRICS nations. It analyzes how risk-averse investors can allocate funds between the countries in order to maximize the expected return in relation to the overall risk. It utilizes an empirical cointegration approach in tandem with modern portfolio theory during the time period 1999-2019. The empirical results of cointegration that is found supports the suggestion that the BRICS markets have a stable risk-premium between each other and that they all share similar systematic risk factors. The results further support the construction of a portfolio solely compromising of stocks from four out of the five BRICS markets, since then they do not share any long-run co-movements with each other. Moreover, the markets of Brazil, India, China and South Africa are strong candidates for reducing portfolio risk without sacrificing the adjusted portfolio return. The results also indicate several causal relationships between the nations, with China as the main driving force. This suggest that shocks in the Chinese market will spread and effect the rest of the BRICS markets, either directly or through one of the other markets. This is important knowledge for global policy-makers since China could be affected by markets outside the co-operation and subsequently transfer it to the rest of the BRICS markets. Since the countries accounts approximately 25 % of the global GDP, policy-makers must act with great care before implementing economic policies against China, since the consequences can have a much larger and wider effect than they anticipate.
86

Uma análise sobre a hipótese de \"descolamento\" entre as economias brasileira e norte-americana / An analisys of the decoupling hypothesis between the GDPs of Brazil and USA

Oliveira, Rodolfo Araujo de 09 February 2012 (has links)
Esse trabalho faz um estudo sobre a hipótese de descolamento das relações de curto e longo prazo entre os PIBs das economias brasileira e norte-americana. Para isso, é realizado, inicialmente, uma análise da literatura existente sobre a possível mudança nas relações entre as economias emergentes e avançadas. Em seguida, foram apresentadas explicações teóricas para as ligações entre os PIBs de Brasil e dos Estados Unidos da América. As metodologias usadas na investigação foram a análise de cointegração e a decomposição dos produtos internos brutos dos países em questão. Os principais resultados, obtidos usando dados anuais entre 1980 e 2008, apontam para uma mudança importante nas relações de longo prazo entre as economias a partir da década de 1980 e uma intensificação das relações de curto prazo a partir da década de 1990. No entanto, ao longo dos anos e, principalmente a partir da metade da década de 2000, foram encontradas evidências em favor de um maior descolamento de curto prazo dos PIBs de Brasil e EUA. / The following dissertation tests the hypothesis of decoupling between the Brazilian and North American economies. For this purpose, the related literature is initially investigated. Afterwards, theoretical explanations on the links between the GDPs of Brazil and USA are shown. The methodologies employed were cointegration analysis and trend/cycle decomposition of the GDPs of the mentioned countries. The main findings using annual data between 1980 and 2008 point out to an important change in the long term relationship between the economies starting in the 1980s and an increase in the short-run links during the 1990s. However, there is evidence suggesting a decoupling of the short term fluctuations between Brazils and USAs GDPs starting in the second half of the 2000s.
87

Uma investigação sobre a hipótese de eficiência do mercado de açúcar no Brasil / An inquiry on the hypothesis of efficiency in the market of sugar in Brazil

Takeuchi, Rodrigo 27 April 2009 (has links)
O setor sucroalcooleiro se torna cada vez mais importante para economia brasileira devido a sua presença estratégica em diversos segmentos da cadeia produtiva nacional. A contribuição que antes ocorria por meio das exportações de açúcar e do álcool anidro, hoje ocorre também através das vendas domésticas de álcool hidratado e da co-geração de energia elétrica. A maior complexidade da agroindústria de cana-de-açúcar veio acompanhada de maiores riscos nas suas operações. O presente trabalho aborda o risco de mercado, o qual está relacionado a variações indesejadas dos preços do açúcar. Os contratos futuros servem de proteção contra tais oscilações, porém, para que esse instrumento sirva de proteção adequada, é preciso que o mercado seja eficiente em assimilar e refletir todas as informações disponíveis no preço. Por esse motivo, o estudo verificou se a hipótese de eficiência dos mercados futuros e à vista do açúcar é válida. A base de dados foi constituída pelas séries de preços do contrato futuro negociado na New York Board of Trade (NYBOT) e dos preços à vista colhidos pelo Centro de Estudos Avançados em Economia Aplicada (CEPEA-ESALQ), todos em bases diárias no período que compreende junho de 1997 até fevereiro de 2008. Os resultados encontrados mostram indícios da eficiência de mercado. / The sugar-ethanol sector turns itself each more relevant to Brazilian economy due its strategic position at the several segments in the national productive chain. A time ago, the contribution of the sector occurred specially for the sugar and alcohol for normal cars foreign trade but today this value receive the contribution of alcohol for flex fuel cars and the generation of energy. Besides the huge complexity of the sugar cane sugar agricultural trade there are the all operational risks involved that can be due the market or due the production. This study broach the subject of market risk, specifically when there is a fluctuation in sugar price and the contracts financial futures work out against these changes. For the mechanism to be a real protection is necessary that the market has the efficiency in to absorb the all existing information about it and to reproduce the effect in the price. For this reason the study aims to analyze about the veracity of the financial futures and spot efficiency hypotheses and the instrument for that investigation was the Engle & Granger cointegration models. The method of Johansen was also used to confirm the robustness of the results found at the first model. The data base was constituted by the financial futures base of the New York Board of Trade (NYBOT) and the spot prices found at Centro de Estudos Avançados em Economia Aplicada (CEPEA-ESALQ), all of them at the daily base. The period used is July, 1997 until February, 2008. The founded results indicate for an existing market efficiency.
88

The Long-Term Stability of the Euro

Reynolds, Michael January 2007 (has links)
Thesis advisor: Robert Murphy / In order for the Euro to be successful over time, certain conditions must be satisfied. First, the economies of the countries need to be similar so that a policy change does not cripple certain economies when it attempts to help others. Therefore, convergence among the interest rates of the different countries will be tested. Also, since the Euro has removed the individual monetary policies, the countries only have fiscal policy to use for stabilization of their economies. Provisions have been in place to prevent countries from overspending, which creates pressure for devaluation of the Euro. This paper will provide evidence that these countries have shown convergence in their economies since the inception of the Euro. It will also explore the literature surrounding the opinions about the role of fiscal policy. Together, these two topics will be used to support the belief that the Euro will be sustained in the future. / Thesis (BA) — Boston College, 2007. / Submitted to: Boston College. College of Arts and Sciences. / Discipline: Economics Honors Program.
89

Cointegração fracionária em séries financeiras / Fractional Cointegration in financial series

Shie, Victor Sakimoto 17 May 2010 (has links)
O objetivo deste trabalho é apresentar alguns testes de cointegração fracionária para séries integradas de ordem d (dR), i.e., séries I(d), comparando-os com os testes de cointegração, cujo parâmetro d assume valores inteiros. O procedimento para os testes de cointegração fracionária utiliza reamostragens de bootstrap com reposição para gerar séries sob a hipótese nula de não cointegração. Estas reamostragens são então utilizadas para calcular os p-valores de algumas estatísticas de testes de regressão, tais como a estatística de Durbin-Watson e a estimativa do parâmetro de memória longa (d) residual. O poder destes testes é apresentado e comparado com os testes de cointegração, mostrando sua consistência. A aplicação destes testes a dados reais compara o modelo de correção de erros de cointegração com o modelo de correção de erros de cointegração fracionária utilizando a medida de erros quadráticos médios dos modelos ajustados. / The purpose of this project is to present some fractional cointegration tests for integrated time series of order d (dR), i.e., I(d) time series, comparing them to cointegration tests, where the parameter d assumes integer values. The tests procedure is done by using bootstrap samples to obtain series under the null hypothesis of non-cointegration. These samples are then used to estimate the p-value of some regression-based test statistics, such as the Durbin-Watson statistic and estimates of residual d parameter. The application of these tests to real series compares the error correction model of cointegration to the error correction model of fractional cointegration by evaluating the mean squared errors over the residuals from the fitted models.
90

Long run diversification potential in Asian stock markets: a test of cointegration.

January 1997 (has links)
by Lam Cham. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (leaves 75-79). / ACKNOWLEDGMENTS --- p.i / ABSTRACT --- p.ii / LIST OF TABLES --- p.iii / LIST OF FIGURES --- p.iv / Chapter CHAPTER 1: --- INTRODUCTION --- p.1 / Chapter CHAPTER 2: --- HISTORICAL BACKGROUND --- p.8 / Chapter 2.1 --- Financial Liberalization in Nine Asian Countries --- p.8 / Chapter 2.1.1 --- Hong Kong --- p.8 / Chapter 2.1.2 --- Korea --- p.12 / Chapter 2.1.3 --- "Indonesia, Malaysia, Singapore and Thailand - the ASEAN-4" --- p.15 / Chapter 2.1.4 --- Taiwan --- p.18 / Chapter 2.1.5 --- Japan --- p.19 / Chapter 2.1.6 --- The Philippines --- p.20 / Chapter 2.2 --- Stock Market Trend --- p.21 / Chapter CHAPTER 3: --- LITERATURE REVIEW --- p.28 / Chapter 3.1 --- Gain from International Diversification --- p.28 / Chapter 3.2 --- International Transmission Effects --- p.30 / Chapter 3.3 --- Integration of World Stock Markets --- p.31 / Chapter CHAPTER 4: --- METHODOLOGY --- p.38 / Chapter 4.1 --- Cointegration and Diversification --- p.38 / Chapter 4.2 --- Testing for Cointegration --- p.45 / Chapter CHAPTER 5: --- DATA --- p.50 / Chapter 5.1 --- MSCI Index --- p.50 / Chapter 5.2 --- Asian Funds --- p.51 / Chapter CHAPTER 6: --- EMPIRICAL RESULTS --- p.52 / Chapter 6.1 --- Unit Root Test --- p.52 / Chapter 6.1.1 --- ADF and Phillips-Perron Unit Root Test --- p.52 / Chapter 6.1.2 --- Unit Root Test with Structural Break --- p.55 / Chapter 6.2 --- Cointegration Test on Stock Markets --- p.57 / Chapter 6.2.1 --- Regional Factor Vs World Factor --- p.57 / Chapter 6.2.2 --- Integration of the Asian Markets --- p.61 / Chapter 6.3 --- Cointegration Test on the Asian Funds --- p.63 / Chapter 6.3.1 --- Weekly Results --- p.65 / Chapter 6.3.2 --- Monthly Results --- p.66 / Chapter CHAPTER 7: --- CONCLUSIONS --- p.72 / REFERENCES --- p.75

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