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Le Touquet – Paris-Plage, France

Argenziano R.,University of Essex | Gilboa I.,HEC | Gilboa I.,Tel Aviv University
Theory and Decision

Coordination games often have multiple equilibria. The selection of equilibrium raises the question of belief formation: how do players generate beliefs about the behavior of other players? This article takes the view that the answer lies in history, that is, in the outcomes of similar coordination games played in the past, possibly by other players. We analyze a simple model in which a large population plays a game that exhibits strategic complementarities.We assume a dynamic process that faces different populations with such games for randomly selected values of a parameter.We introduce a belief formation process that takes into account the history of similar games played in the past, not necessarily by the same population.We show that when history serves as a coordination device, the limit behavior depends on the way history unfolds, and cannot be determined from a-priori considerations. © Springer Science+Business Media, LLC. 2011. Source

Taneja H.,Mm University | Gupta R.,HEC
ACE 2010 - 2010 International Conference on Advances in Computer Engineering

In recent years there has been considerable interest in analyzing relative trust level of the web pages. As the web contains the facts, deceit, opposition and assumptions on the grand scale resulting on which web page do one trust? In this paper an algorithm is proposed which assigns a rank to every document on the web that specify the quality of that document or the relative level of trust one can made on a document. This algorithm is basically using the concept of Page Rank and implemented using C++. The PageRank algorithm is used in the Google search engine for ranking search results. In this paper we have analyzed the behavior of the proposed algorithm for the different values of moister factor. © 2010 IEEE. Source

Jeon D.-S.,Sungkyunkwan University | Lovo S.,HEC
International Journal of Industrial Organization

The recent subprime crisis and the ongoing Euro zone crisis have generated an enormous interest in the credit rating industry not only among economists but also among average citizens. As a consequence, we have seen an explosion of the economic literature on the industry. The objective of this survey is to introduce readers to the key stylized facts of the credit rating industry and to the recent theoretical economic literature on this industry. © 2013 Elsevier B.V. Source

Liao S.,Ecole Centrale Paris | Liao S.,Ecole Polytechnique Federale de Lausanne | Van Delft C.,HEC | Vial J.-P.,ORDECSYS
Optimization Methods and Software

Call centre scheduling aims to determine the workforce so as to meet target service levels. The service level depends on the mean rate of arrival calls, which fluctuates during the day, and from day to day. The staff schedule must adjust the workforce period per period during the day, but the flexibility in doing so is limited by the workforce organization by shifts. The challenge is to balance salary costs and possible failures to meet service levels. In this paper, we consider uncertain arrival rates, that vary according to an intra-day seasonality and a global busyness factor. Both factors (seasonal and global) are estimated from past data and are subject to errors. We propose an approach combining stochastic programming and distributionally robust optimization to minimize the total salary costs under service level constraints. The performance of the robust solution is simulated via Monte-Carlo techniques and compared to the solution based on pure stochastic programming. © 2013 Copyright Taylor and Francis Group, LLC. Source

Srivastava S.C.,HEC | Mithas S.,University of Maryland | Jha B.,Tata Steel
IT Professional

The developing world doesnt approach innovation in the same way as the developed world. Therefore, as firms globalize, they must be mindful of some fundamental differences as they craft their innovation strategies. This article articulates key dimensions and innovation approaches that differ across developing and developed economies. It proposes a framework that managers can use to develop a comprehensive innovation strategy and to tailor their IT systems accordingly. © 1999-2012 IEEE. Source

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