Showing 1 - 10 of 12
This paper studies the incentives to merge in a Bertrand competition model where firms sell differentiated
Persistent link: https://www.econbiz.de/10009650210
An intensive and still growing body of research focuses on estimating a portfolio’s Value-at-Risk. Depending on both the degree of non-linearity of the instruments comprised in the portfolio and the willingness to make restrictive assumptions on the underlying statistical distributions, a...
Persistent link: https://www.econbiz.de/10005144576
We propose a new class of observation driven time series models referred to as Generalized Autoregressive Score (GAS) models. The driving mechanism of the GAS model is the scaled score of the likelihood function. This approach provides a unified and consistent framework for introducing...
Persistent link: https://www.econbiz.de/10005209514
resistant to patches of additive outliers. The data span two samples of 5 years ranging from 1986 to 1995. Using asymptotic … arguments and Monte Carlo simulations, in which we evaluate our empirical method, we show that patches of outliers can have …
Persistent link: https://www.econbiz.de/10005281753
We provide a new definition of breakdown in finite samples with an extension to asymptotic breakdown. Previous definitions center around defining a critical region for either the parameter or the objective function. If for a particular outlier constellation the critical region is entered,...
Persistent link: https://www.econbiz.de/10005281897
existence and uniqueness of Markovian equilibrium are weIl known for the compact state space case, no similar sufficient … algorithm that will prove asymptotically consistent when computing Markovian equilibrium. …
Persistent link: https://www.econbiz.de/10005504922
This paper conducts the first general equilibrium analysis of the role of entry, exit and profits in industry dynamics … function of creating disequilibrium and the conventional equilibrating role of moving the industry to a new equilibrium. Second …, to discriminate between three aspects of industry dynamics: the effect of entry and exit on market equilibrium, duration …
Persistent link: https://www.econbiz.de/10008513242
first show that two well known refinements of the Nash equilibrium, namely, perfect Nash equilibrium and proper Nash … equilibrium, are special cases of our robustness concept. Further, a third special case of robustness refines the concept of … properness and a robust Nash equilibrium is shown to exist for every game. In symmetric bimatrix games, our results imply the …
Persistent link: https://www.econbiz.de/10005137165
Any function from a non-empty polytope into itself that is locally gross direction preserving is shown to have the fixed point property. Brouwer's fixed point theorem for continuous functions is a special case. We discuss the application of the result in the area of non-cooperative game theory.
Persistent link: https://www.econbiz.de/10005137207
In a standard general equilibrium model it is assumed that there are no price restictions and that prices adjust … infinitely fast to their equilibrium values. In this paper the set of admissible prices is allowed to be an arbitrary convex set …. For such an arbitrary set it cannot be guaranteed that there exists a constrained equilibrium satisfying the usual …
Persistent link: https://www.econbiz.de/10005144447