This document summarizes preliminary findings from research on women's collective action and participation in agricultural markets in Ethiopia. The research aimed to identify different types of collective action taken by women at both formal and informal levels. Some key findings included: 1) Women's involvement in formal groups like cooperatives was generally low, though slightly higher in the dairy sector. 2) Women engaged more often in informal collective actions like sharing transport costs and resources. 3) Such collective actions helped women save time and money but often yielded only marginal economic benefits. 4) Development programs have largely overlooked women's existing informal collective activities and support is needed to strengthen their participation.