Revealing additional preference heterogeneity with an extended random parameter logit model: the case of extra virgin olive oil

Methods that account for preference heterogeneity have received a significant amount of attention in recent literature. Most of them have focused on preference heterogeneity around the mean of the random parameters, which has been specified as a function of socio-demographic characteristics. This paper aims at analyzing consumers' preferences towards extra-virgin olive oil in Catalonia using a methodological framework with two novelties over past studies: 1) it accounts for both preference heterogeneity around the mean and the variance; and 2) it considers both socio-demographic characteristics of consumers as well as their attitudinal factors. Estimated coefficients and moments of willingness to pay (WTP) distributions are compared with those obtained from alternative Random Parameter Logit (RPL) models. Results suggest that the proposed framework increases the goodness-of-fit and provides more useful insights for policy analysis. The most important attributes affecting consumers' preferences towards extra virgin olive oil are the price and the product's origin. The consumers perceive the organic olive oil attribute negatively, as they think that it is not worth paying a premium for a product that is healthy in nature.Postprint (published version

Spanish consumers: attitudes and acceptability towards GM food products

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Risk perception and consumer willingness to pay for certified beef in Spain

Preprin

Linking risk attitudes, time preferences, and body mass index in Catalonia

Obesity is projected to increase in the coming years, despite the various socioeconomic policies implemented by governments and policy makers. As a result, some studies have suggested that obesity should be looked at from a psychological point of view, that is, individuals’ propensity to become addicted to the consumption of fat-rich foods. Although previous studies have supported this, the results have been inconclusive: methodologically and geographically. This study uses a robust approach to elicit the risk and time preferences of food consumers. It goes further to ascertain the correlations between these parameters and obesity. Despite the methodological and geographical differences, our results support a strong relationship between body mass Index and risk aversion, but not for loss aversion. In addition, time discounting significantly influences individuals’ propensity to increase body mass Index.Peer ReviewedPostprint (author's final draft

A Dual response choice experiments (DRCE) design to assess rabbit meat preference in Catalonia: A Heterocscedatistic extreme-value model

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Factors explaining the consumers' willingness-to-pay for a 'typical' food product in Spain: evidence from experimental auctions

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Building a culture of research impact assessment within the agro-food research organizations

The agro-food sector is an essential sector striving to satisfy the increasing demand for agro-food products worldwide. Accordingly, the Food Systems Summit has made a sig- nificant effort to heighten social and political awareness about the future food systems’ role in achieving the Sustainable Development Goals (SDGs) Agenda by 2030.Objectius de Desenvolupament Sostenible::12 - Producció i Consum ResponsablesPostprint (published version

Parametric and non-parametric analysis of the role of economic factors on obesity prevalence in Spain

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Valorisation of food surpluses and side-flows and citizens' understanding

This research investigated the consumer understanding and acceptance of different valorisation methods for food surplus and side-flows. Of particular interest was the extent to which consumers accept and even appreciate products resulting from innovative waste valorisation processes. Results showed that although gleaning-based valorised products were deemed acceptable to be used within the setting of school lunches, the other valorisation methods were not, however, the participants did not view them as unsuitable for adult consumption.Postprint (published version

Decomposing the value of rabbit meat. A joint use of the contingent valuation and the analytical hierarchy process

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