Michel Petit is an agriculturalist (Ingénieur Agronome, Paris 1958) having become economist (PhD Michigan State University, 1964). He is now associated with the Institut Agronomique Méditerranéen in Montpellier (France), one of the four centers of Centre international des hautes études agronomiques méditerranéennes (CIHEAM). He was a researcher at the Institut National de la Recherche Agronomique (INRA, France), Professor at ENSSAA in Dijon, France (1968-1988), Program Adviser in the Delhi Office of the Ford Foundation (1975-1977), Director of the Agriculture and Rural Development department of the World Bank (1988-1994), where he then created and led a special unit supporting agricultural research. He subsequently returned to France in 1998 and was Professor of agricultural economics at the Institut National Agronomique Paris-Grignon, now Agro-Paristech, creating a new research and teaching unit on public policies (1999-2003). For about the first twenty years of his career, he worked on farmers’ decisions, and the implications of his research for farmers’ education. He then switched to the comparative analyses of US and European agricultural policies, as well as their conflicts in GATT. He has resumed the same interest after his return from the World Bank. Michel Petit was President of both the European Association of Agricultural Economists (1978-1981) and of the International Association of Agricultural Economists (1985-1988). He has been a member of the International Food and Agricultural Trade Policy Council (IPC) since 1999 and of the Académie Française d’Agriculture since 1997. He is also the chairman of the scientific council of the Fondation pour l’Agriculture et la Ruralité dans le Monde (FARM).