In 2012 OvidiuRo was selected by the World Bank Strategic Impact Evaluation team (SIEF) to co-develop a major randomized controlled study with the World Bank and researchers from Sciences Po (Paris) and the University of California (Berkeley). The purpose was to compare the efficacy of conditional cash transfers linked to preschool attendance with other types of interventions in increasing preschool attendance by Roma children. However, the funding for the large number of new sites required by the rigorous experimental design was not to be found at that time in Romania. Consequently, OvR introduced the researchers to the America for Bulgaria Foundation, which financed the implementation of a similar incentive-based program in Bulgaria (managed by the Trust for Social Achievement). This academically rigorous evaluation was launched in June 2014 and involves 6,000 Bulgarian children living in 240 communities. The results are informing the development of more efficient, evidence-based early education policies in Bulgaria and the region.