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The efficient frontier is a core concept in Modern Portfolio Theory. Based on this idea, we will construct optimal trading curves for different types of portfolios. These curves correspond to the algorithmic trading strategies that minimize the expected transaction costs, i.e. the joint effect...
Persistent link: https://www.econbiz.de/10009004098
This paper analyses the potentially defensive behaviour of successful innovators and its effect on aggregate R&D effort. It proposes a quality-ladders model that endogenously determines leader's technology advantages and who innovate (the leader firm or its competitors). Regulation can have...
Persistent link: https://www.econbiz.de/10009004099
In this paper we raise the matter of considering a stochastic modeling of the surrender rate instead of the classical S-shaped deterministic curve (in function of the spread), still used in almost all insurance companies. A stochastic model in which surrenders are conditionally independent with...
Persistent link: https://www.econbiz.de/10009004163
Le passage de la sphère financière à la sphère réelle lors des crises économiques a pour conséquence un effet de dominos qui accélère la propagation des crises. Pourtant certaines entreprises résistent mieux que d'autres, limitant ainsi la propagation, et l'efficacité des pratiques de...
Persistent link: https://www.econbiz.de/10009004175
This paper presents the results of an econometric analysis of the conditional probability of leaving unemployment for four waves of French married men and women entering unemployment from 1991 to 2002. The effect of spouse's hourly earnings on unemployment duration is found to be asymmetric for...
Persistent link: https://www.econbiz.de/10009004176
We present a new model of loss processes in insurance. The process is a couple $(N, \, L)$ where $N$ is a univariate Markov-modulated Poisson process (MMPP) and $L$ is a multivariate loss process whose behaviour is driven by $N$. We prove the strong consistency of the maximum likelihood...
Persistent link: https://www.econbiz.de/10009004177
In a dynamic general equilibrium model with endogenous markups and labor market frictions, we investigate the effects of increased product market competition. Unlike most macroeconomic models of search, we endogenize the labor supply along the extensive margin. We show that beneficial effects in...
Persistent link: https://www.econbiz.de/10009004178
Cette étude fait ressortir les variables les plus significatives suivant deux phases d'évolution de la PE liée au secteur de l'armement. D'une part, l'étude de la phase de démarrage-montée a esquissée différents facteurs de succès pour caractériser la continuité d'activité de la PE...
Persistent link: https://www.econbiz.de/10009004217
Le recours aux méthodes d'estimation statistiques, courant dans différents domaines de la gestion, est plus restreint en comptabilité. Cependant, certaines entreprises ont instaurées des processus reposant sur l'induction statistique, notamment en facturation. Cet article vise à analyser...
Persistent link: https://www.econbiz.de/10009004218
Le suivi des performances passe par une analyse de la valeur perçue par le client et des coûts générés. L'analyse par processus et par activités peut constituer un cadre méthodologique intéressant pour construire un outil d'instrumentation de l'arbitrage coût - valeur. Cette...
Persistent link: https://www.econbiz.de/10009004219