The objective of this paper is to understand the impact of immigration on the Spanish pension system during the next fifty years by building a quantitative theoretical framework. In order to carry out the exercise of projection of revenues and expenditures in the Spanish pension system, we have...

The aim of this paper is to evaluate the impact of the Spanish pension reform enacted in 2011. We use an accounting model with heterogeneous agents and overlapping generations in order to project revenues and expenditures of the pension system for the next four decades. Specifically, we analyze...

The aim of this paper is to evaluate the impact of the Spanish pension reform enacted in 2011. We use an accounting model with heterogeneous agents and overlapping generations in order to project revenues and expenditures of the pension system for the next four decades. Specifically, we analyze...

El objetivo de este artículo es evaluar el impacto de la reforma de pensiones aprobada en 2011. A través de un modelo de proyección contable con agentes heterogéneos y generaciones solapadas se proyectan los ingresos y gastos del sistema de pensiones para las próximas cuatro décadas. En...

Extreme Value Theory is increasingly used in the modelling of financial time series. The non-normality of stock returns leads to the search for alternative distributions that allows skewness and leptokurtic behavior. One of the most used distributions is the Pareto Distribution because it allows...

En la primera parte del articulo analizamos cuales son las principales fuerzas que están detrás del proceso de envejecimiento en el que están envueltas todas las economías desarrolladas. Identificamos la esperanza de vida a partir de los 65 años como el factor determinante del proceso. En...

The objective of this paper is the evaluation of different Value at Risk (VaR) methodologies. In particular, four VaR methodologies (Normal, GARCH, Historical Simulation and Extreme Values (EV)), are compared for 36 indexes covering stock-exchanges worldwide. This paper proposes for the EV...

The objective of this paper is to understand the impact of immigration on the Spanish pension system during the next fifty years by building aquantitative-theoretical framework. In order to carry out the exercise of projection of revenues and expenditures in the Spanish pension system, we have...

The arrival of new information helps financial markets to value assets, but it may has the side-effect of increasing their volatilities. A better knowledge of the mechanism that links relevant news and stock prices would help both private and institutional agents to improve the calibration of...

The arrival of new information helps financial markets to value assets, but it may has the side-effect of increasing their volatilities. A better knowledge of the mechanism that links relevant news and stock prices would help both private and institutional agents to improve the calibration of...