Burbujas racionales y el S&P 500. Una metodología empírica
Abstract
El presente documento analiza si la evolución del S&P500 se parece a la de una burbuja racional. Encontramos evidencia positiva en esta interrogante a través de la aplicación del Filtro de Kalman a un modelo de valoración de acciones propuesto, y nuestra conclusión es robusta empleando tres diferentes factores estocásticos de descuento: utilidad lineal, utilidad logarítmica y utilidad CRRA. Encontramos también evidencia de la existencia de una relación entre el tipo de factor estocástico de descuento y el tamaño de la burbuja.
We analyze if the dynamics of the S&P500 resemble those of a rational bubble. We find positive evidence in this question by applying the Kalman Filter to a suitable asset pricing model proposed and our conclusion is robust to three different stochastic discount factors SDFs considered: Linear Utility, Log Utility and CRRA utility. We also find evidence of a relationship between the type of SDF and the size of a bubble in the S&P500 case.
We analyze if the dynamics of the S&P500 resemble those of a rational bubble. We find positive evidence in this question by applying the Kalman Filter to a suitable asset pricing model proposed and our conclusion is robust to three different stochastic discount factors SDFs considered: Linear Utility, Log Utility and CRRA utility. We also find evidence of a relationship between the type of SDF and the size of a bubble in the S&P500 case.
Description
No. 35