In this paper, we consider testing marginal normal distributional assumptions. More precisely, we propose tests based on moment conditions implied by normality. These moment conditions are known as the Stein (1972) equations. They coincide with the first class of moment conditions derived by...

This paper illustrates the usefulness of resampling based methods in the context of multiple (simultaneous) tests, with emphasis on econometric applications. Economic theory often suggests joint (or simultaneous) hypotheses on econometric models; consequently, the problem of evaluating joint...

A wide range of tests for heteroskedasticity have been proposed in the econometric and statistics literatures. Although a few exact homoskedasticity tests are available, the commonly employed procedures are quite generally based on asymptotic approximations which may not provide good size...

This paper provides evidence based on French macroeconomic data, that shocks on the cost of oil inputs are transmitted asymmetrically to the prices of fuel. We use an error correction model to estimate the dynamics of the transmission of the cost of crude oil expressed in French currency, to the...

What can studying the creation of knowledge tell us about how new technical fields emerge and develop? This paper shows how a knowledge community may be necessary to support the legitimacy of new products that undergo performance evaluation before purchase. Using historical and ethnographic data...

The question at stake is that of the theoretical representation of marketable permits. The setting up of such markets to regulate pollution problems is justified by constant reference to the efficiency of market coordination. Indeed, Montgomery established in 1972 the existence of an efficient...

La hausse des prix des produits agricoles sur les marchés internationaux durant la période 2006-2008 a entraîné une flambée des prix intérieurs dans certains pays en développement, mais pas dans d’autres. La littérature empirique sur la transmission des chocs des prix internationaux...

Le marché mondial du vin est caractérisé par un développement sans précédent en ce qui concerne la production, mais aussi l'aire géographique qu'il comprend. La surproduction qui a tendance à dégénérer en une crise est due premièrement à l'apparition de nouveaux acteurs sur ce...

We analyze whether and how the fact that products are not sold on free, public, platforms but on competing for-profit platforms affects sellers’ investment incentives. Investments in cost reduction, quality, or marketing measures are here to joint and coordinated efforts by sellers. We show...