The objective of the workshop was to explore the issues arising from the changing structure of the various commodity chains, and to guide the future work of the Division in this area. The conference brought together the latest thinking on these issues to provide a stock-taking of the various problems, and more importantly, to identify the policy and technical issues on which there is consensus, and those where further analytical and empirical work is needed.

Conceptual Issues of Market Structure in Agricultural Commodity Value Chains.
1. Market control and competition issues along the commodity value chain. Nikos Vettas, Athens University of Economics and Business, Greece.
2. Trade liberalization under imperfect competition in commodity markets. Steve McCorriston, University of Exeter, United Kingdom.
3. The dynamics of vertical coordination in supply chains of transition and developing countries, and implications for trade. Johan Swinnen, University of Leuven, Belgium.
4. Contracting issues at various levels of the value chain. Doyle Baker et. al. FAO.

Institutional and structural issues in commodity markets
5. Standards and Supply-Chain Coordination: Impact on Small-Scale Producers. Cornelis (Kees) L. J. Van Der Meer, World Bank.
6. Supermarkets, Processors, and Farmers in Central America: Comparative Cases of Horticulture Products and Beef . Thomas Reardon, Luis Flores, Fernando Balsevich, Ricardo Hernández (Michigan State University), Julio Berdegué (Rimisp - Latin American Center for Rural Development), Paul Schuetz, and Edwin Perez (ILRI, Nicaragua).
7. Transmission of price signals and the distribution of revenues along the commodity value chains. David Hallam and George Rapsomanikis, FAO.
8. Estimating the Pass-Through of agricultural policy reforms: An Application to Brazilian commodity markets. Jonathan Brooks (OECD/FAO) and Olga Melyukhina, OECD.

Farmers and commodity development.
9. The determinants of investments in coffee trees in Uganda. Ruth Vargas-Hill, Oxford University, United Kingdom.
10. Market and other constraints to smallholder coffee development in Tanzania. Alexander Sarris, and Sara Savastano, FAO.
11. Market structure and productivity growth in Ghanaian Cocoa production. Andrew Zeitlin, Centre for the Study of African Economies, Oxford University, UK.
12. Assessing Small-holder Participation in Value Chains: the case of vegetables in Honduras and El Salvador. Mark Lundy, Iván Rodriguez, Roberto Banegas, Lourdes Centeño, Manuel Alfaro, Santos Hernández, José Angel Cruz and Madelon Meijer.

Changing market structures and distributional issues
13. Interlinking markets, efficiency, and equity in value chains. Anneleen Vandeplas and Johan Swinnen, University of Leuven, Belgium.
14. Implications of changing market structures in the rubber market. Hidde Smit, International Rubber Study Group (No paper provided.)
15. Traditional agricultural marketing versus global retail chains: evidence from Madagascar, Bart Minten, Cornell University.
16. Do commodity processors exert monopsony power? Evidence from coffee and cocoa markets. Christopher Gilbert, University of Trento.