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Stated Preferences

Survey techniques where we ask respondents to choose among hypothetical contrasted alternatives and deduct their preferences for non-market googs or specific ecosystems services.


Description

Behavioral experiments based on choices proposed to agri-environmental policy stakeholders improve our ability to assess the demand for technologies, for ecosystem services associated with land use scenarios or public policy modalities (e.g. Payments for Environmental Services PES, insurance, etc.).

Discrete choice experiments (DCEs) are used to explain respondents' economic behavior and obtain their preferences through controlled experiments based on hypothetical scenarios. Using a survey format, respondents are asked to make choices between different versions of policy instruments, or different features of socio-hydrosystems, which are described by their characteristics or attributes. The combinations of characteristics/attributes are proposed to respondents according to a predefined experimental design that maximizes the reliability of the calculations of trade-offs made by respondents between the different attributes. Variations on the DCE technique have been developed and observe various types of choices: most and least favored scenario choices (best-worst scaling), ranking of options, etc.


Our use

The PRECOS team has developed numerous studies using DCEs. In particular, we have worked on preferences for various ecosystem services of hydro-ecosystems. In addition, we have also worked on farmers' preferences for technological traits of techniques that preserve natural resources, and on some water-related policies.


Productions

Members who used it

Marine Favre , Cécile Hérivaux , Damien Jourdain , Philippe Le Coent , Sylvie Morardet , Jean-Daniel Rinaudo