Consumer information on products affects competition and profits. We analyze firms' decisions to impart product information through advertising: comparative advertising also allows them to impart information about rivals' products. If firms sell products of similar qualities, both want to...

Improved consumer information about (symmetric) products can lead to better matching but also higher prices, so consumer surplus can go up or down, while profits rise. With enough firm asymmetry though, the stronger firm's price falls with more information, so both effects benefit consumers....

We model comparative advertising as brands pushing up own brand perception and pulling down the brand image of targeted rivals. We watched all TV advertisements for OTC analgesics 2001-2005 to construct matrices of rival targeting and estimate the structural model. These attack matrices identify...

[fre] Le résultat de Diamond 1971 montre que ta tarification en concurrence imparfaite se modifie de fa on spectaculaire on introduit une imperfection dans information des consommateurs objet de cet article est de faire le point sur les travaux qui explorent cette piste dans un contexte de...