Willingness to pay of Portuguese sparkling wine consumers: Econometric and machine learning approaches

Lina Lourenço-Gomes, Mário Gonzalez Pereira, Norberto Jorge Gonçalves, Tânia Gonçalves and João Rebelo

Journal of Wine Economics, 2025, vol. 20, issue 1, 68-88

Abstract: Understanding consumer choices and their drivers of willingness to pay (WTP) for a bottle of wine has been a research challenge in wine economics, particularly in niche markets such as sparkling wine. This study investigates the determinants of WTP for sparkling wine based on data from Portuguese consumers. The results provided by two alternative methodologies are compared: a traditional econometric model, based on the estimation of an ordered probit model; and a modelling approach based on data-driven and using machine learning algorithms. Both approaches present similar results, highlighting the relevance of some determinants including income, Champagne brand, not being a protected designation of origin and being a red wine consumer as main predictors of WTP for sparkling wine in Portugal.

Date: 2025
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