Dissanayake, Sahan; Voigt, George; Cooper, Abbie; … - 2019
evolution of preferences over time. The study uses a novel approach combining a repeated choice experiment with a randomized … use traditional cooking methods. Respondents were given the exact same choice questions in 2013 and 2016. The study began … with 504 households in 36 communities in 2013, and 486 of the same households participated in 2016 (a 96 percent retention …