Economist and Senior Marketing Specialist at the World Agroforestry Centre, Nairobi (since March 2009). Formerly, Scientist and Coordinator of the Economic Impact Assessment Horticulture Project of the International Centre of Insect Physiology and Ecology, Nairobi (2005-2009). Formerly, Research Associate at the Institute of Agriculture and Development Economics, Faculty of Economics and Business Administration, Leibniz University of Hannover, Germany (98-2005). Postgraduate Fellow, Domestication of Indigenous Fruit Trees Project of World Agroforestry Centre, Harare, Zimbabwe (99-2000). Hermann Waibel is a Professor of Development and Agricultural Economics (since 2001) and Director of the Institute of Economics in Horticulture (since 1998) Formerly Professor of Economics in Horticulture (1994 - 2001), Faculty of Economics and Business Administration, University of Hannover, Germany; formerly Director of International Programs of the Leibniz University of Hannover and Chairman of the Senate Committee on International Relations of the Leibniz University of Hannover (2000 - 2003). Spend 10 years working in development assistance in Asia with GTZ and in development research and teaching with the Asian Institute of Technology (AIT);Since 2001 member of the Standing Panel on Impact Assessment of the CGIAR, worked extensively as consultant and reviewer for numerous organizations of development assistance, including The World Bank, The Food and Agriculture Organization (FAO),The Asian Development Bank, the European Union, GTZ, , the German Development Bank (KfW) and the CGIAR.

• 1: An Overview 2: Theoretical Concepts for Socio-economic Research of Vegetables in Africa 3: Framework for economic impact assessment of production standards and empirical evidence 4: The Impact of Food Safety Standards on Rural Household Welfare 5: The Impact of Compliance to GlobalGAP Standards on Small and Large Kenyan Export Vegetable-producing Farms 6: Food Production Standards and Farm Worker Welfare in Kenya 7: Group Culture and Smallholder Participation in Value Chains: French Beans in Kenya 8: Export Vegetable Supply Chains and Rural Households in Senegal 9: Comparative Assessment of the Marketing Structure and Price Behaviour of Three Staple Vegetables in Lusaka, Zambia 10: Value Chains and Regional Trade in East Africa: The Case of Vegetables in Kenya and Tanzania 11: Supply Chains for Indigenous Vegetables in Urban and Peri-urban Areas of Uganda and Kenya: A Gendered Perspective 12: Private Voluntary Standards, Co-investment and Inclusive Business 13: An Approach to Strengthening Vegetable Value Chains in East Africa: Potential for Spillovers 14: Challenges for Economic Impact Assessment of Classical Biological Control in Kenya and Tanzania 15: Indirect and External Costs of Pesticide Use in the Vegetable Sub-sector in Kenya 16: Integrated Pest Management Training and Information Flow among Smallholder Horticulture Farmers in Kenya

Economist and Senior Marketing Specialist at the World Agroforestry Centre, Nairobi (since March 2009). Formerly, Scientist and Coordinator of the Economic Impact Assessment Horticulture Project of the International Centre of Insect Physiology and Ecology, Nairobi (2005-2009). Formerly, Research Associate at the Institute of Agriculture and Development Economics, Faculty of Economics and Business Administration, Leibniz University of Hannover, Germany (98-2005). Postgraduate Fellow, Domestication of Indigenous Fruit Trees Project of World Agroforestry Centre, Harare, Zimbabwe (99-2000). Hermann Waibel is a Professor of Development and Agricultural Economics (since 2001) and Director of the Institute of Economics in Horticulture (since 1998) Formerly Professor of Economics in Horticulture (1994 - 2001), Faculty of Economics and Business Administration, University of Hannover, Germany; formerly Director of International Programs of the Leibniz University of Hannover and Chairman of the Senate Committee on International Relations of the Leibniz University of Hannover (2000 - 2003). Spend 10 years working in development assistance in Asia with GTZ and in development research and teaching with the Asian Institute of Technology (AIT);Since 2001 member of the Standing Panel on Impact Assessment of the CGIAR, worked extensively as consultant and reviewer for numerous organizations of development assistance, including The World Bank, The Food and Agriculture Organization (FAO),The Asian Development Bank, the European Union, GTZ, , the German Development Bank (KfW) and the CGIAR.

• 1: An Overview 2: Theoretical Concepts for Socio-economic Research of Vegetables in Africa 3: Framework for economic impact assessment of production standards and empirical evidence 4: The Impact of Food Safety Standards on Rural Household Welfare 5: The Impact of Compliance to GlobalGAP Standards on Small and Large Kenyan Export Vegetable-producing Farms 6: Food Production Standards and Farm Worker Welfare in Kenya 7: Group Culture and Smallholder Participation in Value Chains: French Beans in Kenya 8: Export Vegetable Supply Chains and Rural Households in Senegal 9: Comparative Assessment of the Marketing Structure and Price Behaviour of Three Staple Vegetables in Lusaka, Zambia 10: Value Chains and Regional Trade in East Africa: The Case of Vegetables in Kenya and Tanzania 11: Supply Chains for Indigenous Vegetables in Urban and Peri-urban Areas of Uganda and Kenya: A Gendered Perspective 12: Private Voluntary Standards, Co-investment and Inclusive Business 13: An Approach to Strengthening Vegetable Value Chains in East Africa: Potential for Spillovers 14: Challenges for Economic Impact Assessment of Classical Biological Control in Kenya and Tanzania 15: Indirect and External Costs of Pesticide Use in the Vegetable Sub-sector in Kenya 16: Integrated Pest Management Training and Information Flow among Smallholder Horticulture Farmers in Kenya

Economist and Senior Marketing Specialist at the World Agroforestry Centre, Nairobi (since March 2009). Formerly, Scientist and Coordinator of the Economic Impact Assessment Horticulture Project of the International Centre of Insect Physiology and Ecology, Nairobi (2005-2009). Formerly, Research Associate at the Institute of Agriculture and Development Economics, Faculty of Economics and Business Administration, Leibniz University of Hannover, Germany (98-2005). Postgraduate Fellow, Domestication of Indigenous Fruit Trees Project of World Agroforestry Centre, Harare, Zimbabwe (99-2000). Hermann Waibel is a Professor of Development and Agricultural Economics (since 2001) and Director of the Institute of Economics in Horticulture (since 1998) Formerly Professor of Economics in Horticulture (1994 - 2001), Faculty of Economics and Business Administration, University of Hannover, Germany; formerly Director of International Programs of the Leibniz University of Hannover and Chairman of the Senate Committee on International Relations of the Leibniz University of Hannover (2000 - 2003). Spend 10 years working in development assistance in Asia with GTZ and in development research and teaching with the Asian Institute of Technology (AIT);Since 2001 member of the Standing Panel on Impact Assessment of the CGIAR, worked extensively as consultant and reviewer for numerous organizations of development assistance, including The World Bank, The Food and Agriculture Organization (FAO),The Asian Development Bank, the European Union, GTZ, , the German Development Bank (KfW) and the CGIAR.

• 1: An Overview 2: Theoretical Concepts for Socio-economic Research of Vegetables in Africa 3: Framework for economic impact assessment of production standards and empirical evidence 4: The Impact of Food Safety Standards on Rural Household Welfare 5: The Impact of Compliance to GlobalGAP Standards on Small and Large Kenyan Export Vegetable-producing Farms 6: Food Production Standards and Farm Worker Welfare in Kenya 7: Group Culture and Smallholder Participation in Value Chains: French Beans in Kenya 8: Export Vegetable Supply Chains and Rural Households in Senegal 9: Comparative Assessment of the Marketing Structure and Price Behaviour of Three Staple Vegetables in Lusaka, Zambia 10: Value Chains and Regional Trade in East Africa: The Case of Vegetables in Kenya and Tanzania 11: Supply Chains for Indigenous Vegetables in Urban and Peri-urban Areas of Uganda and Kenya: A Gendered Perspective 12: Private Voluntary Standards, Co-investment and Inclusive Business 13: An Approach to Strengthening Vegetable Value Chains in East Africa: Potential for Spillovers 14: Challenges for Economic Impact Assessment of Classical Biological Control in Kenya and Tanzania 15: Indirect and External Costs of Pesticide Use in the Vegetable Sub-sector in Kenya 16: Integrated Pest Management Training and Information Flow among Smallholder Horticulture Farmers in Kenya