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Completed Research Projects (since 2003)

TitleIndividual risk attitudes in rural Thailand and Vietnam
ObjectivesThis project aims for generating a better understanding of the role of individual risk attitude in explaining economic behaviour of poor households as a pre-requisite for empirical research to build up a considerable database serving the specific needs of research.
The project has four objectives, namely: (1) to validate various measures of individual risk attitude in the cross-section, (2) to generate understanding about the determinants of risk attitude in the time-series, (3) to analyze the influence of financial literacy, and (4) to analyze the role of risk attitude of agricultural decision makers together with their past experience and their level of knowledge on management decisions in agriculture.
MethodologyA representative household survey in rural areas of Thailand and Vietnam will be conducted.
The resulting database provides comprehensive information about characteristics of these households, including about all kinds of shocks and risks and the respondent individual risk attitudes.
ContactHermann Waibel, Sabine Liebenehm in collaboration with Lukas Menkhoff (DIW)
(including no cost extension)
10/2013 - 02/2018
Funding/SponsorDFG - Proj. WA 1002/10-1
Budget184 000 €
KeywordsPoverty dynamics, Sustainable development, Vulnerability, Southeast Asia, Thailand, Vietnam
TitleStatus of markets for organic and fair trade commodities in agriculture and its impact for developing countries: A meta-analysis
ObjectivesOverall objectives: To assess the extent to which certified alternative agricultural systems like organic agriculture and fair trade management can contribute towards sustainable livelihoods of smallholder farmers in developing countries.
Specific objectives:
1. To examine the drivers that influence the adoption of such alternative farming systems;
2. To investigate the extent to which organic and fair trade certified agriculture impacts production and welfare of smallholder farmers;
3. To compare and do a meta-analysis on how these systems effects smallholder farmers in the continents on Asia, Africa and Latin America and derive the success factors of such farming technologies.
MethodologyEconometric and meta-analysis based on secondary and primary data.
ContactPriyanka Parvathi
Funding/SponsorWege in the Forschung II, Leibniz Universität Hannover
Budget50 000 €
KeywordsOrganic farming, fair trade, developing countries, meta-analysis
TitleImproving the management of trypanosomiasis in smallholder livestock production systems in tsetse-infested sub-Saharan Africa
ObjectivesOverall objectives:
To improve the sustainable livelihoods of resource-poor livestock producers in smallholder production systems through improved control of trypanosomiasis.
Special objectives:
  • To improve capacity and capability of African laboratories and veterinary services to detect trypanocide resistance  and to conduct quality control of trypanocidal drugs;
  • To improve the effectiveness of available trypanocides in livestock;
  • To promote and monitor the use of the technical and structural innovations developed in partnership at a regional and continental scale.
MethodologyIn order to evaluate the project’s impact
1. Household level data collection to establish a panel data set
2. Impact analysis using DD-models
ContactSabine Liebenehm / Alirah E. Weyori
PartnerPrince Leopold Institute of Tropical Medicine, Antwerp (ITM)
Free University of Berlin (FUB)
Vétérinaires Sans Frontières – Belgium (VSF)
Centre International de Recherche-Developpement sur l’Elevage en Zone Subhumide (CIRDES)
National Animal Health Diagnostic and Investigation Centre (NAHDIC)
University of Pretoria (UP)
Direction de l’Elevage du Togo (VetTogo)
Universidade Eduardo Mondlane (EMU)
Period 2012 - 2017
Funding/SponsorEU Commission
Budget330 000 €
KeywordsImpact assessment, Livestock disease, Sub-Saharan Africa
TitleInsurance and Private Transfers – Experimental Evidence
ObjectivesMost people in developing countries are currently not insured; they therefore depend on private transfers from relatives and friends when hit by a shock. However, the provision of insurance is steadily increasing. An important question is to what extent the possibility to purchase insurance affects the willingness to help others. Previous research shows contradicting effects: some studies find a decrease in private transfers, others an increase. The underlying drivers remain unclear. Guided by the literature on other-regarding preferences, the proposed project investigates potential mechanisms that may help explain changes in helping behavior.
MethodologyWe analyze these mechanisms in a framed field experiment combined with a household survey on transfer behavior within social networks. We conduct the project in several villages in Cambodia.
ContactSusan Steiner / Friederike Lenel (DIW Berlin)
PartnersSocial Health Protection Association, Cambodia
Budget91 000 €
KeywordsSocial networks, insurance, experiments, Cambodia
TitleSustainable rubber cultivation in the Mekong region (SURUMER), sub-project 9: Microeconomic analysis of sustainable Natural Resources Management innovations in rubber cultivation in Yunnan Province, China
ObjectivesThe main objective of this project is to establish a better understanding of the potential to introduce a sustainable rubber plantation system in Yunnan province in Southwestern China. To achieve this objective an ex-ante impact analysis of sustainable Natural Resource Management (NRM) innovations of farmers in this area will be carried out.

Specific objectives:
1. Analyze different adoption decisions by using econometric models to identify key factors that drive smallholder rubber farmer’s decision.
2. Conduct a comprehensive economic analysis of different farming systems (rubber monoculture, intercropping, traditional agriculture), giving account of the cost structures, productivity, cash income generation and poverty levels.
3. Conduct an economic impact assessment by use of a “difference-in-difference model” and “normative household models” based on the concept of typical farms.
4. Investigate the potential economic effects of alternative land use strategies in terms of income generation, income inequality, food security, and poverty and vulnerability reduction.
5. Analyze the barriers and required incentives for small-scale farmers to adopt economically sustainable land use and management concepts.

MethodologyCollect a representative household (or farm) level panel survey of around 600 households;
Conduct empirical analysis by using econometric models and collected data 
ContactShi Min, Shaoze Jin
PartnersCenter for Chinese Agricultural Policy,
Chinese Academy of Sciences
Funding/SponsorBMBF, DLR
Budget310 000 €
KeywordsNatural Rubber, Microeconomic analysis, Mekong region, Xishuangbanna, China
TitleImpact of shocks on the vulnerability to poverty: Consequences for development of emerging Southeast Asian economies

Teilprojekt TP 03
The capacity of agriculture to adjust to economic crisis and environmental shocks in Thailand
1. Investigating the changing role of agriculture before and after economic crisis in Thailand
2. Analyzing the capacity of agriculture to adjust to environmental shocks in Vietnam
3. Comparing and assessing the structural adjustment processes in agriculture in Thailand and Vietnam in view of economic crisis and environmental change
4. Contribute to advancing the vulnerability concepts by incorporating agricultural household decision models
5. Advance the concept of risk measurement
Methodology 1. Household level data collection to establish a panel data set
2. Quantitative analysis using panel data models
ContactMulubrhan R. Amare, Bezawit B. Chichaibelu, Lena Hohfeld, Thi Hoa Pahlisch
PartnersDas Projekt wird gemeinsam mit dem Lehrstuhl 'Umweltökonomik und Welthandel' (Prof. U. Grote) bearbeitet.
Budget250 000 €
KeywordsVulnerability, Shocks, Thailand, Coping strategies, Rural development
TitleCost-benefit analysis of sustainability standards in small holder oil palm farming in Sumatra, Indonesia
ObjectivesThis research aims to assess the acceptance and economic consequences of standards for sustainable oil palm farming among small holders in the province of Jambi, Sumatra, Indonesia.
This study will draw from an existing panel data set of some 291 small holder oil palm farmers from 2010 and 2012 in two districts of Jambi.
Three hypotheses will be tested:
(1) smallholder oil palm farmers are aware of the environmental standards promoted by the Government in oil palm plantations;
(2) the benefits of sustainable oil palm management practices are uncertain;
(3) woman can play a major role in implementing sustainable oil palm management practices.
Fieldwork to test the first hypotheses has already been conducted during July - August 2012.
For 2013, additional data collection is proposed with the objective to test the second and the third hypotheses. Individual interviews, focus group discussions with village groups and a stakeholder workshop will be conducted to establish the empirical base for developing and applying cost benefit analysis.
MethodologyHousehold level data collection to establish a panel data set
Funding/SponsorEconomy and Environment Program for Southeast Asia (EEPSEA), Institut für Entwicklungs- und Agrarökonomik
Budget14 000 €
KeywordsOil palm, Environment, Smallholder, Indonesia
TitleEconomics of African Animal Trypanosomiasis (AAT) management strategies under risk and time preferencies
ObjectivesThe overall goal of this research proposal is to analyze livestock disease control options that can ensure the sustainability of livestock dependent household systems in West Africa.
The research project has two specific objectives, i.e.:
(i) Analyse the data on risk and time preferences as well as subjective probabilities that have been elicited by economic field experiments from January to February 2011
(ii) Assess the long-term productivity of AAT disease control strategies including trypanocides in a dynamic modeling framework
MethodologyMaximum-Likelihood Estimation of preferences
Stochastic dynamic programming
ContactSabine Liebenehm
Budget110 000 €



TitleAssessing the Potential of Fair Organic Certified Products for Sustainable Livelihoods in Developing Countries - The case of Black Pepper in India
Objectives1. To what extent conversion and adoption to organic production and fair trade marketing arrangements can be a viable option for improving the livelihoods of smallholder farmers in India?
2. What is the impact of organic agriculture under fair trade promotion structures on the income and consumption of the household?
Methodology1. Household level data collection to establish a panel data set
2. Quantitative analysis using panel data models
ContactPriyanka Parvathi
Funding/SponsorLeibniz Universität Hannover
KeywordsOrganic farming, Fair trade, Sustainability, Vulnerability, India



Title The Impact of Contract Farming in the Oil Palm Industry on Poverty Reduction: An Analysis of Supply Chain Partnership in Sumatra, Indonesia
Contact Eko R. Cahyadi
Period 2009-2013
Keywords Contract farming, Oil palm, Treatment effect model, Vulnerability, Poverty
Title The effect of social networks on vulnerability to poverty: A village level case study in Thailand
Contact Theda Gödecke
Period 2008-2012
Keywords Vulnerability to poverty, Thailand, Social networks, Village level case study
Title Impact of shocks on vulnerability to poverty in Thailand and Vietnam: consequences for the development of emerging Southeast Asian economies
Contact Duc Phung Tung
Period 2006-2011
Keywords Vulnerability to poverty, Thailand, Vietnam, Southeast Asian economies
Title Response of rural households to agricultural income shocks in Vietnam
Contact Marc Völker
Period 2007-2011
Funding/Sponsor Deutsche Forschungsgemeinschaft (DFG)
Keywords Vulnerability to poverty, Coping Strategies, Vietnam
Title Response of rural households to agricultural income shocks in Thailand
Contact Songporne Tongruksawattana
Peroid 2007-2011
Funding/Sponsor Deutsche Forschungsgemeinschaft (DFG)
Title Food security and poverty alleviation through improved valuation and governance of river fisheries in Africa
Contact Levison Chiwaula / Rudolf Witt
Period 2005-2009
Funding/Sponsor Bundesministerium für wirtschaftliche Zusammenarbeit und Entwicklung (BMZ)
Keywords Fisheries, economic valuation, poverty, vulnerability
Title Economic Impact of EU Food-safety Standards on Small-scale Producers in Agrifood Supply Chain: Evidence from Kenya
Contact Solomon Asfaw
Period 2005-2009
Funding/Sponsor Bundesministerium für wirtschaftliche Zusammenarbeit und Entwicklung (BMZ)
Keywords EurepGAP standard, export vegetables, impact, adoption, farmer health, Kenya
Title Cotton production in Asia: Productivity, efficiency, and impact assessment
Contact Piyatat Pananurak
Period 2005-2008
Funding/Sponsor FAO
Keywords Cotton, IPM, Productivity, Efficiency, Impact assessment
Title Economic and behavioral factors affecting the adoption of environmentally friendly and healthy vegetable production systems in Thailand
Contact Thanaporn Krasuaythong
Period 2004-2006
Funding/Sponsor DAAD
Keywords Adoption, Thailand, vegetable production technology, prospect theory
Title Impact assessment of FFS IPM training in China
Contact Wu Lifeng
Period 2003-2006
Funding/Sponsor FAO, NATESC, Universität Hannover
Keywords Farmer field school, integrated pest management, impact assessment, training
Title The economics of health effects of integrated pest management on small-scale farmers in Nicaragua
Contact Hildegard Garming
Period 2003-2005
Funding/Sponsor GTZ / EU
Keywords Valuation of non-market benefits, integrated pest management, vegetable production, willingness to pay, health effects, Nicaragua
Title Improving the management of Trypanocide resistance in the cotton zone of West Africa
Contact Hippolyte Affognon
Period 2002-2005
Funding/Sponsor BMZ
Keywords Livestock production, Trypanosomosis, Trypanocide drugs, disease control, drug resistance
Title Spatial distribution and inter-regional dynamics of vegetable production in Thailand
Contact Bernd Hardeweg
Period 2001-2004
Funding/Sponsor Deutsche Forschungsgemeinschaft (German Research Foundation)
Keywords Thailand, vegetable production, regional programming model
Title Economics of using biotechnology in pest management in developing countries – The case of Bt-cotton in China
Contact Diemuth Pemsl
Period 2001-2004
Funding/Sponsor FAO, Universität Hannover
Keywords Productivity, damage control, biotechnology, Bt-cotton, China, input monitoring
Title Impact of FFS IPM training in West Africa
Contact Diemuth Pemsl, Hippolyte Affognon
Period 2004-2005
Funding/Sponsor Global IPM Facility
Keywords Farmer field school, integrated pest management, impact assessment, training
Title Feasibility study to ascertain and analyze production factor use in German horticulture
Contact Walter Dirksmeyer
Period 2001-2005
Funding/Sponsor Co-financing of the German Ministry of Consumer Protection, Food, and Agriculture and the Agricultural Ministries of the German Federal States
Keywords Horticulture, production factors, life cycle analysis
Title Economics of biological plant protection strategies in open field vegetable production
Contact Walter Dirksmeyer
Period 2001-2004
Funding/Sponsor German Research Foundation
Keywords Pesticides, open field vegetable production, carrots, leek, onion, simulation model, damage abatement
Title Economics of indigenous fruit tree crops in Zimbabwe
Contact Dagmar Mithöfer
Period 1998-2004
Funding/Sponsor World Agroforestry Centre
Keywords Food security, income poverty, investment under uncertainty, indigenous fruit trees, Zimbabwe
Title Diffusion and impact of farmer field schools (FFS) in Uganda
Contact Nassul Ssentamu Kabunga
Period 2004-2006
Funding/Sponsor DAAD / Universität Hannover
Keywords Uganda, Farmer Field School (FFS), Diffusion, Impact assessment
Title Institutional analysis of the performance of veterinary service
Contact Lucien Babatounde
Period 2002-2004
Funding/Sponsor DAAD / Universität Hannover
Keywords Institutional change, moral hazards, externalities, new institutional economics, veterinary reform, Mali, performance