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.

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...

The purpose of this article is to present a multi-items scale on Web retail service quality. After reviewing the literature on this subject, two studies are presented. The first study is a qualitative one with a literature review and a series of depth individuals interviews and focus groups of...

The short-term effect of store-level promotions (weekly flyers, radio and outdoor advertising) on grocery store choice is investigated. We estimate household-level multinomial logit (MNL) models of store choice on panel data, using promotional variables, loyalty, and moderating variables. The...

The authors examine the main consumption trends that are considered to be relevant to the retail industry, when differenciation becomes the main strategic objective. This research aims at helping the retailers to understand the major trends and to evaluate the opportunity of responding to them...

Sales flyers are intensively used by retailers to communicate their promotions, and reach strategic objectives. In this article, we raise the question of the perspectives offered to this media, while it is facing a shift in retailer strategies, as well as sharp changes in the communication...