The goal of the study is to understand how local agricultural sustainability programs, also known as "partnerships," in three American Viticultural Associations (Lodi, Napa Valley, San Luis Obispo) influence growers' social networks and adoption of sustainable agriculture practices. The primary research task is a grower survey that asks about practice adoption and program participation; we are also conducting a survey of outreach advisers such as extension advisers and viticultural consultants throughout the state.

This projects investigates the role of social networks and social influence in travel behavior. Sustainable transportation programs may benefit from the incorporation of social influence through knowledge sharing, establishment of behavioral norms and peer-to-peer participation recruitment. The next phase of this ongoing research will involve evaluation of social influence as a tool in pilot sustainable transportation programs.