El objetivo principal de este trabajo es determinar si existe una relación de convergencia de largo plazo entre los cuatro mayores mercados bursátiles de Europa continental y evaluar, al mismo tiempo, el impacto que la volatilidad en uno de ellos tiene sobre el resto. La muestra incluye los mercados de París, Frankfurt, Milán, y Madrid, durante un periodo de importantes cambios en el entorno económico y, en particular, episodios de intensa turbulencia. El enfoque metodológico consiste en la construcción de un modelo capaz de representar los índices bursátiles de los cuatro mercados, para caracterizar su comportamiento histórico mediante técnicas econométricas. El estudio parte de la confirmación de
This paper estimates the impact of capital structure changes on the market value of a sample of 69 non-financial firms listed in the Mexican Stock Exchange, during the period 2004 to 2014. Using Pooled Ordinary Least Squares (OLS), Fixed Effects (FE) and Random Effects (RE) regressions, we confirm the extensively documented positive influence of leverage on firm value; i.e. there is a clearly positive and statistically significant relationship between changes in financial leverage (debt ratios and debt to invested capital) and changes in Tobin's Q (our proxy variable for firm value). When the sample is distributed in sub samples of firms with low and high leverage, small and big size, low and high profitability, or low and high risk, the financial leverage coefficients vary in magnitude and, in the case of debt ratios, remain highly significant. Our main contribution consists in the analysis of the estimated parameters, contributing to a better understanding of the impact of financial leverage changes on the value of different types of firms. These findings have important implications for corporate financial strategies, as well as for portfolio managers' investment choices.
This paper examines the “day-of-the-week” anomaly in the foreign exchange market of six major Latin American countries’ currencies: (Argentina, Brazil, Chile, Colombia, Mexico, and Peru), all with respect to the United States’ dollar. The returns of daily exchange rates are stationary, so we use linear regressions combined with GARCH, TARCH and EGARCH models to explore the presence of the “day-of-the-week” anomaly. The results confirm the presence of “abnormal” effects in some of the currencies and in some days of the week, particularly on Fridays and Mondays. Moreover, volatility in exchange rates shows clustering behavior, as well as leverage effects, which are carefully modelled in our analysis. This paper contributes to the literature by studying the “day-of-the-week” effects in currency exchange rate markets, a clear innovation with respect to the typical stock market analysis. The results reported are useful for foreign exchange market traders, currency exposure management decision makers, monetary authorities, and financial policy designers in the countries included in the study. Indeed, the results suggest the presence of a typical behavior of the exchange rate of all the currencies included in the sample.
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