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El análisis empírico de la productividad de las infraestructuras se ha enfrentado a múltiples problemas econométricos que parecen estar detrás de la gran variabilidad en los resultados obtenidos en la literatura. Uno de esos problemas es la multicolinealidad existente al estimar los...
Persistent link: https://www.econbiz.de/10008514963
The Customer Lifetime Value (CLV ) concept has been highly used in the marketing area over the years. In this paper the authors present some useful extensions for the case of uncertain data. In particular, a CLV estimation with triangular fuzzy numbers (TFN) is introduced.
Persistent link: https://www.econbiz.de/10008764151
Spanish Abstract: El objetivo principal del presente trabajo, es analizar el efecto que tiene la educación, la edad, el acceso a TIC's y activos físicos y financieros, además de otras características personales y socioeconómicas, en la probabilidad de ser trabajador por cuenta propia,...
Persistent link: https://www.econbiz.de/10012924303
Spanish Abstract: Los principales modelos financieros para la estimación del riesgo de mercado suponen que los rendimientosde los activos siguen una distribución Normal o se basan en la distribución empírica. Con frecuencia, elsupuesto de normalidad se da por hecho; sin embargo, resulta poco...
Persistent link: https://www.econbiz.de/10013009827
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In order to provide a tool for risk management improvement and appropriate regulation, a methodology for measuring interest rate risk is applied in this paper. After estimating and simulating the interest rate term structure, the value at risk and expected shortfall are calculated on a...
Persistent link: https://www.econbiz.de/10011392440
volatility, since this is precisely the variable that is negotiated. We present then a statistical methodology for the estimation … of the volatility parameter for an asset using methods of the Bayesian approach to statistics. As prior distributions for … volatility parameter, models of the Gamma family and the Standard Levy are assumed. The results obtained using the proposed …
Persistent link: https://www.econbiz.de/10014494469
volatility, since this is precisely the variable that is negotiated. We present then a statistical methodology for the estimation … of the volatility parameter for an asset using methods of the Bayesian approach to statistics. As prior distributions for … volatility parameter, models of the Gamma family and the Standard Levy are assumed. The results obtained using the proposed …
Persistent link: https://www.econbiz.de/10013486201
We present a new heteroskedastic conditional variance model using NonLinear Moving Average as the basis for this specification [NLMACH(q)]. The typical problem of this class of models-i.e., noninvertibility—is solved by means of an intuitive parametric restriction; this allows us to use...
Persistent link: https://www.econbiz.de/10009143765