We propose an ARCH model of the TGARCH type with an asymmetric Student's t distribution. It is built using the methodology of Fernandez and Steel (1998) and the traditional TGARCH model developed by Zakoian (1994). The model is used to describe series of stock market returns and to assess the...

We develop a comparative study using the TARCH and EGARCH non-linear econometric models. We use them to describe Mexican stock market returns. We model daily series of returns for 30 stocks and the Stock Market Index (IPC) for the period between December 7, 2005 and August 1, 2011. Most of the...

Esta investigación presenta un estudio comparativo de los rendimientos cambiarios latinoamericanos, en el que se usó la metodología de cointegración de Johansen y los modelos asimétricos TGARCH y EGARCH. Los resultados indican que las volatilidades de los rendimientos de Argentina, Brasil,...