Similar Search Results

Image and personality: two complementary tools to position and differentiate retailers

Louis, Didier; Lombart, Cindy - HAL - 2011

The objective of this research is to study retailers' positioning and the way they are different from each other through the concepts of image and personality. To illustrate this point, eight retailers in three sectors (grocery, clothing and sport articles) that are leading retailers in France...

Persistent link: https://www.econbiz.de/10010752353

When cost improvements harm consumers

Gruyer, Nicolas; Bontems, Philippe - HAL - 2007

This paper demonstrates that in a vertical structure, improving cost efficiency might sometimes be detrimental to consumers, by increasing market price. This is in stark contrast to the standard result in oligopoly theory which suggests that the surplus generates by any efficiency gain in...

Persistent link: https://www.econbiz.de/10010898592

How institutions affect retailers' internationalization ?

Durand, Cédric - HAL - 2007

This paper examines the institutional and economic factors determining success and failure of global retailers abroad through the trajectories of Wal-Mart and Carrefour. Three kinds of explanations are considered : the time and modalities of entry and development, the factors that allow the...

Persistent link: https://www.econbiz.de/10008794865

Multi-Channel Retail Supply Chain Management: Fulfillment systems in Multi-Channel Retailing - Customer Expectations and Economic Performance

Lang, Gerald - HAL - 2010

Increasingly, store-based retailers are opening an additional online sales channel and becoming multi-channel retailers. The integration of these different channels raises the question how to redefine the strategic marketing elements and the operations, as the two channels have different...

Persistent link: https://www.econbiz.de/10008833314

A Neural Network Demand System

Boelaert, Julien - HAL - 2013

We introduce a new type of demand system using a feedforward artificial neural network. The neural network demand … the system to estimate demand elasticities on micro data of household consumption in Canada between 2004 and 2008, and … compare the results to those of the quadratic almost ideal demand system. …

Persistent link: https://www.econbiz.de/10011026086

Long Memory Process in Asset Returns with Multivariate GARCH innovations

Mootamri, Imene - HAL - 2011

The main purpose of this paper is to consider the multivariate GARCH (MGARCH) framework to model the volatility of a multivariate process exhibiting long term dependence in stock returns. More precisely, the long term dependence is examined in the first conditional moment of US stock returns...

Persistent link: https://www.econbiz.de/10009644795

Detrending Persistent Predictors

Boucher, Christophe; Maillet, Bertrand - HAL - 2011

Researchers in finance very often rely on highly persistent - nearly integrated - explanatory variables to predict returns. This paper proposes to stand up to the usual problem of persistent regressor bias, by detrending the highly auto-correlated predictors. We find that the statistical...

Persistent link: https://www.econbiz.de/10010605314

Changing-regime volatility: A fractionally integrated SETAR model

Dufrenot, Gilles; Guegan, Dominique; Peguin-Feissolle, Anne - HAL - 2008

This paper presents a 2-regime SETAR model with different long-memory processes in both regimes. We briefly present the memory properties of this model and propose an estimation method. Such a process is applied to the absolute and squared returns of five stock indices. A comparison with simple...

Persistent link: https://www.econbiz.de/10010750892

Forecasting exchange rates better than the random walk thanks to machine learning techniques

Amat, Christophe; Michalski, Tomasz; Stoltz, Gilles - HAL - 2014

overfitting in-sample for better and more stable forecasting performance out-of-sample we show that fundamentals from the PPP … forecasting horizons. …

Persistent link: https://www.econbiz.de/10010899931

Is Hosting the Games Enough to Win? A predictive economic model of medal wins at 2014 Winter Olympics

Andreff, Wladimir - HAL - 2012

An econometric model which has first been estimated on medal wins at Summer Olympics and has predicted 88% of medal distribution at Beijing Games 2008, is revisited for Winter Olympics. After changing some variables to take into account the winter sports specificity, the model is estimated again...

Persistent link: https://www.econbiz.de/10011025665