Resumen:Reflejan los mercados accionarios los fundamentales macroeconómicos de un país?. La hipótesis de eficiencia semifuerte (Fama 1970) implica que los mercados accionarios deben reaccionar inmediatamente, y sin sobre ni subreacción predecible, a las sorpresas en los anuncios...

The current economic crisis was defined by analysts as the worst financial crisis since the Great Depression of the 30’s, countries under development being confronted with an accelerated reduction in the economic growth and labor force, negative impact on the commercial balance sheet and...

This paper proposes a new model called Fourier-GARCH that is a modification of the popular GARCH(1,1). This modification allows for time-varying first and second moments via means of Flexible Fourier transforms. A nice feature of this model is its ability to capture both short and long run...

Quantile regression has important applications in risk management, portfolio optimization, and asset pricing. The current paper studies estimation, inference and financial applications of quantile regression with cointegrated time series. In addition, a new cointegration model with varying...

In this paper, I study the drop of real GDP volatility which has been observed in the United States during the postwar period. This paper thoroughly estimates how much sectoral shifts contributed to this phenomenon called the Great Moderation. In a short section, Stock and Watson (2003) find...

With relying on game theory, this paper investigates the role of information played in decisions of economic agents in Tehran Stock Exchange (TSE). The behavior of economic agents in a company in the Cement, Lime & Gypsum industry named Tehran Cement listed on the TSE has been investigated...