Building on the methodology pioneered by Feenstra (1994) and Broda and Weinstein (2006), we construct an export price index that adjusts for changes in the set of competitors (variety) and changes in non-price factors (quality in a broad sense) for nine emerging economies (Argentina, Brazil,...

The paper proposes a theoretical framework for explaining gains and losses in export market shares by considering both price and non-price determinants. Starting from a demand-side model à la Armington (1969), we relax several restrictive assumptions to evaluate the contribution of unobservable...