Monetary incentives to adopt a healthy diet: Evidence from a randomized controlled trial with food vouchers targeted on fruits, vegetables and legumes

Model parameters

Select participants by recruitment method

Community social action center

1 - Social grocery store

2 - Social grocery store

Employment Agency

1 - Food assistance organization

Consumer Panel

Supermarket

Selection participants according to socio-demographic characteristics

Number of household members

Dependent children

Yes No No response

Single-parent household

Yes No No response

Income by consumption unit (INSEE)

Undeclared income

Age

Ratio : Amount of eligible products purchased at T0 / Theoretical food voucher amount

Undeclared response

Models based on responses to:

Food frequency questionnaire

Food supply booklets

Food frequency questionnaires and Food supply booklets

Adherence to the voucher usage instruction based on:

Select only participants identified as having complied with the conditions of voucher use according to the method described in the paper

Yes No

Select

Everyone Only participants who are FFQ-Compliant Only participants who aren’t FFQ-Compliant

Proportion of vouchers used compared to the monthly amount sent

Adherence to the voucher usage instructions

Choose a model

Group

Value

Regression with continuous interaction

Variables to regress