SRDC Executive Director John Greenwood took part in roundtable discussions organized as part of the Brazil–Canada Technology Transfer Project on Human Resource Development funded by the Canadian International Development Agency. The roundtable on the evaluation of public policies and programs took place during the September visit to Ottawa of a delegation from the Secretariat of Employment and Labour Relations of the State of Sao Paulo. Mr. Greenwood’s presentation focused on the uses of field demonstrations, particularly social experiments, to generate evidence to guide social policy development.