In the estimation of risk measures such as Value at Risk and Expected shortfall relatively short estimation windows are typically used rendering the estimation error a possibly non-negligible component. In this paper we build upon previous results for the Value at Risk and discuss how the...

In general, the properties of the conditional distribution of multiple period returns do not follow easily from the one-period data generating process. This renders computation of Value-at-Risk and Expected Shortfall for multiple period returns a non-trivial task. In this paper we consider some...

In this note it is argued that the estimation error in Value-at-Risk predictors gives rise to underestimation of portfolio risk. We propose a simple correction and find in an empirical illustration that it is economically relevant.

Cet article dresse un panorama des connaissances sur le rôle du prix dans le processus d'achat du consommateur, sur la manière dont le consommateur traite l'information sur le prix ainsi que sur ses réactions face aux tarifs.

Abstract: Place attachment has been widely studied in various research fields such as environmental psychology or sociology, through the description of the emotional and identity bonds linking the individuals and their physical environment. However, whereas scholars emphasize the importance of...

This article documents the development and validation of a multidimensional superstition scale (MSS). Superstition is conceptualized as a three dimension personality trait: belief in culturally shared superstitions, superstitious pessimism and magical thinking rituals. We carried out three...

Knowing and identifying superstitious consumers enable firms to propose products or services which are not opposite to the superstitious practices of consumers. An exploratory study; 10 interviews and 4 collects of data (N = 484) were conducted in order to both identify the dimensions of...

We will explore consumers’ motivations to use Internet to give objects still usable but they do not use anymore. Two focus groups and seventeen semi-conduct interviews enable us to understand that consumers use Internet to give objects 1) for ideology; 2) for practical motivation; 3) to take...

Cet article s'intéresse aux consommateurs qui gardent des objets alors qu'ils n'en ont plus l'utilité. Deux raisons expliquent leur comportement: 1) des raisons matérielles (ils ont de la place et ne se posent pas la question de s'en débarrasser ; ils ne savent pas ce qu'ils peuvent en faire...