Showing 1 - 10 of 129
Es una práctica muy difundida el multiplicar la desviación estándar por la raíz del tiempo para escalarla a otros plazos. Así, con base en la estimación de la desviación estándar o del VaR (Value at Risk) diario, es usual obtener la desviación estándar o el VaR para un periodo de diez...
Persistent link: https://www.econbiz.de/10008459020
The financial crisis of the late 2000's highlighted the importance of strengthening risk management systems in financial markets. Consequently, an increasing interest in strategies to quantify risk under extreme scenarios has spawned. One of such techniques is CrashMetrics, a methodology for...
Persistent link: https://www.econbiz.de/10010558573
In the context of financial crises influenced by the development and burst of housing price bubbles, the detection of exuberant behaviors in the financial market and the implementation of early warning diagnosis tests are of vital importance. This paper applies the new method developed by...
Persistent link: https://www.econbiz.de/10010906057
La práctica sobre políticas de inversión diferencia entre la definición de la composición del portafolio de referencia de largo plazo o benchmark y de los mecanismos de desviación en el corto plazo respecto a ese portafolio, en lo que se conoce como asignación estratégica de activos y...
Persistent link: https://www.econbiz.de/10005274487
We present an investment process that: (i) decomposes securities into risk factors; (ii) allows for the construction of portfolios of assets that would selectively expose the manager to desired risk factors; (iii) perform a risk allocation between these portfolios, allowing for tracking error...
Persistent link: https://www.econbiz.de/10005274488
First developed by Markowitz (1952), the mean-variance framework is the most widespread theoretical approximation to the portfolio problem. Nevertheless, successful application in the investment community has been limited. Assumptions such as normality of returns and a static correlation matrix...
Persistent link: https://www.econbiz.de/10005274517
Whilst emphasis has been given to short-term dependence of financial returns, long-term dependence remains overlooked. Despite financial literature provides evidence of long-term’s memory existence, serial-independence assumption prevails. This document’s long-term dependence assessment...
Persistent link: https://www.econbiz.de/10008675737
This paper approaches active management of baskets of currencies from the perspective of Complexity theory, where the market is analysed as a Complex Adaptive system. A basket of currencies is constructed using objective probabilities (propensities) and an artificial intelligence optimization...
Persistent link: https://www.econbiz.de/10005035884
Bajo el supuesto de que una serie de retornos es independiente e idénticamente distribuida (IID), la dimensión temporal del riesgo es irrelevante. De esta forma, la volatilidad calculada sobre un intervalo de tiempo (e.g. mensual) puede ser estimada a partir de la calculada sobre otro...
Persistent link: https://www.econbiz.de/10010739886
En este documento realizamos un estudio de eventos para estudiar los efectos del anuncio de problemas de liquidez y toma de posesión por parte de la Superintendencia Financiera de Colombia de la firma comisionista de bolsa Interbolsa S.A. en noviembre de 2012 sobre el rendimiento de las...
Persistent link: https://www.econbiz.de/10010691445