CHAIR OF ECONOMIC AND AGRICULTURAL POLICY

Prof. Dr. Thomas Heckelei

Welcome to our website, Our research focuses on the quantitative economic analysis of agri-environmental and trade policy measures at different scales.

We collaborate with partners in a large and diverse  international network, providing students and young researchers with an internationally-oriented learning and research environment. Our team has a wealth of experience in this field, as evidenced by the diverse career paths of our former staff.

Whether you are a student, researcher, or simply interested in the economic analysis of agri-environmental and trade policy measures, we hope you will find valuable information on our website. Thank you for visiting.

Avatar Heckelei

Prof. Dr. Thomas Heckelei

Head of Group Economic and Agricultural Policy

Sekretariat:
Kristin Nitsche

Kontakt

Tel.: +49 228 73 - 2332

E-Mail: agpo@ilr.uni-bonn.de

Adresse

Nußallee 21
53115 Bonn

Research

Our past and current research revolves around four main areas: agri-food policies, methods and tools for quantitative economic analysis, structural change in agriculture, and agri-environmental systems. We are committed to conduct high-quality, internationally visible research in these areas and collaborate with partners from academia, government, and industry. Our work has important implications for the sustainability and resilience of agricultural and food systems. 

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We aim to better understand the economic, social and environmental impacts of agri-environmental and trade policies on the agricultural and food systems at different scales. We mostly employ quantitative empirical and simulation modelling tools complemented with qualitative approaches.  The results of our work shall provide valuable insights and recommendations to policy makers and industries on policy measures to support sustainable agri-food systems.

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We contribute to the development of advanced methods and tools for quantitative economic analysis. This involves the adaptation and use of mathematical modeling, (Bayesian) econometrics, machine learning and computer simulations.  Our researchers are trained in the latest technologies and techniques in this field. 

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Agricultural practices and processes have a significant impact on the environment and the latter in turn determines the productivity of agriculture. In order to support the sustainability transformation of the agricultural system, we examine the complex relationships between agricultural practices (including management, land use, and technology adoption) and the ecosystem.

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Current farm structures are the result of a long-term, dynamic processes of adjusting to changes in economic, technological and social drivers. Our group contributes research to understand farm structural change and the interaction of farm structure with agricultural productivity and environmental footprint.  

Current Projects

Robotics and Phenotyping for Sustainable Crop Production 

Period: 01/2020 - 12/2024
Sponsor program: DFG
Coordinator: Prof. Dr. Cyrill Stachniss and Prof. Dr. Heiner Kuhlmann, Sprecher
Team at ILR: Maria Gerullis, Linmei Shang, Dr. Sebastian Rasch, Prof. Dr. Thomas Heckelei.

Better Agri-food Trade Modelling for Policy Analysis

Period: 2020 - 2024
Sponsor program: Horizon 2020 EU Research and Innovation programme
Coordinator: Karine Latouche, INRA, France
Team at ILR: Dr. Yaghoob Jafari, Helena Engemann, Prof. Dr. Thomas Heckelei

Future-making and social-ecological transformation 

Period: 2018 - 2025
Sponsor program: DFG
Coordinator: Prof. Dr. Michael Bollig and Prof. Dr. Britta Klagge
Team at ILR: Prof. Dr. Thomas Heckelei, Dr.Bisrat H.Gebrekidan, Dr.Hanna Ihli, Eva Salve Tino Bacud

Modelling Individual Decisions to Support the European Policies Related to Agriculture

Period: 2019 - 2023
Sponsor program: European Commission
Coordinator: John Helming, WUR, The Netherlands 
Team at ILR: Linmei Shang, Prof. Dr. Thomas Heckelei

Integrated Transformation Processes and Their Regional Implementations

Period: 2019 - 2022
Sponsor program: Bio-Economy Science Center
Coordinator: Sandra Venghaus, Forschungszentrum Jülich
Team at ILR: Dr. Yaghoob Jafari, Prof. Dr. Thomas Heckelei, Helena Engemann

Technology Choice and Genetic Pools in Plant Breeding

Period: 2022 - 2024
Sponsor program : Partially funded DFG
Coordinator: Maria Gerullis
Team at ILR: Maria Gerullis, Prof. Dr. Thomas Heckelei

Teaching

At our chair, we offer a variety of courses within different study programs. These courses allow students to specialize in a specific area of interest and gain knowledge and skills in that field. Our courses are designed to be both challenging and rewarding, providing students with a well-rounded education. Some of the courses that we offer include:

Sommersemester



AGR-048
Agrar- und Umweltpolitik, Teilmodul Agrarpolitik
6. Semester



AGR-049
Einführung in die Welternährungswirtschaft
6. Semester



AGR-047
Ökonomie III, Teilmodul Politik
4./6. Semester

APO-120
Applied Trade Theory and Policy
term 3



APO-110
European and International Agricultural Policy
term 1/3



BAS-130
Microeconomics
term 1



APO-330

Research Seminar in Agricultural and Development Policy
term 3



APO-300
Seminar Policy Analysis
term 3



APO-310
Special Project in Agricultural and Development Policy
term 3

APO-230
Advanced Applied Econometrics
term 2



APO-330
Research Seminar in Agricultural and Development Policy
term 2



APO-310
Special Project in Agricultural and Development Policy
term 2  

Staff

Our group is a diverse and dynamic team, consisting of around 20 individuals dedicated to research, teaching and service. Together, we are committed to pushing the boundaries of knowledge on policies supporting sustainable agri-food systems but also to build and advance careers of the individuals involved.

Avatar Heckelei

Thomas Heckelei

Avatar Nitsche

Kristin Nitsche

+49 228 73 - 2332

+49 228 73-994693

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Avatar Ahmed

Sheharyar Ahmed

Avatar Bacud

Eva Salve Bacud

-

Avatar Cao

An N. Q. Cao

Avatar Dönmez Altindal

Elif Dönmez Altindal

Avatar Engemann

Helena Engemann

EuroCare:

Avatar Kesting

Dr. Monika Kesting

Avatar Witzke

Dr. Heinz-Peter Witzke

Avatar Götz

Dr. Christian Götz

External Doctoral students:

Avatar Engida

Ermias Engida

-

Avatar Woldeyohanes

Tesfaye Berhanu Woldeyohanes

-

Publications

Bacud, E. S., Gerullis, M., Puskur, R. and Heckelei, T. (2024): Looking at gender is not enough—How diversity of farmers’ marginalization relates to varietal trait preferences, Food Policy 124 (102616): 1-18, Link.

Cao, A. N., Heckelei, T., Ionici, O., Robe, M. A. (2024): USDA reports affect the stock market, too, Journal of Commodity Markets 34 (100384): 1-21, Link.

Shang, L., Wang, J., Schäfer, D., Heckelei, T., Gall, J., Appel, F., Storm, H. (2024): Surrogate modelling of a detailed farm-level model using deep learning, Journal of Agricultural Economics 75 (1): 235-260, Link.

Storm, H., Heckelei, T., Baylis, K. and Mittenzwei, K. (2024): Identifying farmers’ response to changes in marginal and average subsidies using deep learning, American Journal of Agricultural Economics 106(4): 1544-1567, Link.

Storm, H., Heckelei, T. and Baylis, K. (2024): Probabilistic programming for embedding theory and quantifying uncertainty in econometric analysis, European Review of Agricultural Economics (jbae016): pp. 1-28, Link.

Tabe-Ojong, M. P., Nana, I., Zimmermann, A. and Jafari, Y. (2024): Trends and evolution of global value chains in food and agriculture: Implications for food security and nutrition, Food Policy 127(102679): 14 pages, Link.

Tirgariseraji, M., Nejadhashemi, A. P., Jafari, Y., Persson, T., Sabouhi Sabouni, M., Mirzabaev, A., Nikouei, A. and Shahnoushi Foroushani, N. (2024): Exploring the instability in the food security due to nitrogen fertilizer regulatory policy, Food and Energy Security 13 (3 (e549)): 1-12, Link.

Engemann, H., Jafari, Y., Heckelei, T. (2023): Institutional quality and the duration of agri-food trade flows, Journal of Agricultural Economics 74(1): 135-154, Link.

Faye, B., Webber, H., Gaiser, T., Müller, C., Zhang, Y., Stella, T., Latka, C., Reckling, M., Heckelei, T., Helming, K., Ewert, F. (2023): Climate change impacts on European arable crop yields: Sensitivity to assumptions about rotations and residue management, European Journal of Agronomy 142 (2023)(126670): 13 pages, Link.

Fedoseev, V., Fedoseeva, S., Herrmann, R. (2023): Implicit prices of attributes of fine German Riesling: magnitude and heterogeneity, British Food Journal 125(4): pp. 1245-1262, Link.

Fedoseeva, S., Herrmann, R. (2023): Assortments and prices in online grocery retailing, Digital Business 3(1 (100054)): 7 pages, Link.

Fedoseeva, S., Van Droogenbroeck, E. (2023): Pandemic pricing: Evidence from German grocery e‐commerce, Agribusiness 2023: 1-18, Link.

Gatti, N., Cecil, M., Baylis, K., Estes, L., Blekking, J., Heckelei, T., Vergopolan, N., Evans, T. (2023): Is closing the agricultural yield gap a “risky” endeavor?, Agricultural Systems 208(103657): 11 pages, Link.

Gebrekidan, B. H., Heckelei, T., Rasch, S. (2023): Modeling intensification decisions in the Kilombero Valley floodplain: A Bayesian belief network approach, Agricultural Economics 54(1): 23-43, Link.

Gerullis, M., Pieruschka, R., Fahrner, S., Hartl, L., Schurr, U., Heckelei, T. (2023): From genes to policy: mission-oriented governance of plant-breeding research and technologies, Frontiers in Plant Science 14, Link.

Gerullis, M., Schulz, W. (2023): Robustness of plant breeding systems under automated phenotyping, Smart Agricultural Technology 5(100225): 12 pages, Link.

Heckelei, T., Hüttel, S., Odening, M., Rommel, J. (2023): The p-Value Debate and Statistical (Mal)practice – Implications for the Agricultural and Food Economics Community, German Journal of Agricultural Economics 72(1): 47-67, Link.

Jafari, Y., Engemann, H., Heckelei, T., Hainsch, K. (2023): National and Regional Economic Impacts of changes in Germany’s electricity mix: A dynamic analysis through 2050, Utilities Policy 82(101583): 13 pages, Link.

Jafari, Y., Engemann, H., Zimmermann, A. (2023): Food trade and regional trade agreements – A network perspective, Food Policy 119(102516): 1-12, Link.

Jafari, Y., Koppenberg, M., Hirsch, S., Heckelei, T. (2023): Markups and export behavior: Firm-level evidence from the French food processing industry, American Journal of Agricultural Economics 105(1): 174-194, Link.

Jafari, Y., Shang, L., Kuhn, A., Heckelei, T. (2023): The National and Regional Impact of the EU Bioeconomy Strategies on the Agri-Food Sector: Insights from Germany, German Journal of Agricultural Economics 72(2): 73-90, Link.

Kusunose, Y., Rossi, J. J., Van Sanford, D. A., Alderman, P. D., Anderson, J. A., Chai, Y., Gerullis, M., Jagadish, S. V. K., Paul, P. A., Tack, J. B., Wright, B. D. (2023): Sustaining productivity gains in the face of climate change: A research agenda for US wheat, Global Change Biology 29(4): pages 926-934, Link.

Shang, L., Pahmeyer, C., Heckelei, T., Rasch, S., Storm, H. (2023): How much can farmers pay for weeding robots? A Monte Carlo simulation study, Precision Agriculture: 26 pages, Link.

Springmann, M., Van Dingenen, R., Vandyck, T., Latka, C., Witzke, H.-P., Leip, A. (2023): The global and regional air quality impacts of dietary change, Nature Communications 14(6227): 1-8, Link.

Tabe-Ojong, M. P. J., Heckelei, T., Rasch, S. (2023): Aspirations and investments in livestock: Evidence of aspiration failure in Kenya, Agricultural Economics: 1-23, Link.

Tabe-Ojong, M. P. J., Heckelei, T., Baylis, K., Rasch, S. (2023): Cooperative membership and exposure to role models: Implications for income and asset aspirations, Journal of Behavioral and Experimental Economics 107(102119): 1-9, Link.

Tirgariseraji, M., Persson, T., Jafari, Y., Sabouhi Sabouni, M., Mirzabaev, A., Nikouei, A., Shahnoushi Foroushani, N. (2023): Aiming at low nitrogen leaching diets based on nitrogen fertilizer regulatory policy: A regional bio-economic assessment of the Zayandeh-Rud river basin-Iran, Journal of Environmental Management 351(119650): 16 pages, Link.

Britz, W., Jafari, Y., Nekhay, O., Roson, R. (2022): Assessing inequality and poverty in long-term projections of economic growth: A general equilibrium analysis for six developing countries, Economic Modelling 117(106066): 18 pages, Link.

Engemann, H., Jafari, Y. (2022): COVID-19 and changes in global agri-food trade, Q Open 2(1 (qoac013)): 1-26, Link.

Fedoseev, V., Fedoseeva, S. (2022): Same DNA, same location, same price? Price differences across distribution e-channels of a single online retailer, Agribusiness 38(4 (agr.21758)): pages 874-884, Link.

Fedoseeva, S., Irek, J. (2022): Within-retailer price dispersion in e-commerce: Prevalence, magnitude and determinants, Q Open 2(qoac021): 1-20, Link.

Fedoseeva, S., Zeidan, R. (2022): The US-China trade war and the emergence of market power in commodity markets, Applied Economics 54(43): Pages 4952-4960, Link.

Ihli, H. J., Chiputwa, B., Winter, E., Gassner, A. (2022): Risk and time preferences for participating in forest landscape restoration: The case of coffee farmers in Uganda, World Development 150(105713): 18 pages, Link.

Latka, C., Parodi, A., van Hal, O., Heckelei, T., Leip, A., Witzke, H.-P., van Zanten, H. (2022): Competing for food waste – Policies’ market feedbacks imply sustainability tradeoffs, Resources, Conservation and Recycling 186(106545): 11 pages, Link.

Tabe-Ojong, M. P. J., Gebrekidan, B. H., Nshakira-Rukundo, E., Börner, J., Heckelei, T. (2022): COVID-19 in rural Africa: Food access disruptions, foodinsecurity and coping strategies in Kenya, Namibia, and Tanzania, Agricultural Economics 53(5): pages 719-738, Link.

Tabe-Ojong, M. P. J., Mausch, K., Woldeyohanes, T. B., Heckelei, T. (2022): Three hurdles towards commercialisation: integrating subsistence chickpea producers in the market economy, European Review of Agricultural Economics 49(3): 668-695, Link.

Taghvaee, V. M. ., Nodehi, M. ., Arani, A. A. ., Jafari, Y., Shirazi, J. K. (2022): Sustainability spillover effects of social, environment and economy: mapping global sustainable development in a systematic analysis, Asia-Pacific Journal of Regional Science 2022: 25 pages, Link.

Basnet, S., Jansson, T., Heckelei, T. (2021): A Bayesian econometrics and risk programming approach for analysing the impact of decoupled payments in the European Union, The Australian Journal of Agricultural and Resource Economics 65(3): pp. 729-759, Link.

Baylis, K., Heckelei, T., Hertel, T. W. (2021): Agricultural Trade and Environmental Sustainability, Annual Review of Resource Economics 13: 379-401, Link.

Cao, A. N., Robe, M. A. (2021): Market uncertainty and sentiment around USDA announcements, Journal of Futures Markets 42(2): pages 250-275, Link.

Cardona Santos, E., Storm, H., Rasch, S. (2021): The cost-effectiveness of conservation auctions in the presence of asset specificity: An agent-based model, Land Use Policy 102(104907): 20 pages, Link.

Gerullis, M., Heckelei, T., Rasch, S. (2021): Toward understanding the governance of varietal and genetic diversity, Ecology and Society 26(2, Art. 28): 19 pages, Link.

Graham, S., Ihli, H. J., Gassner, A. (2021): Agroforestry, Indigenous Tree Cover and Biodiversity Conservation: A Case Study of Mount Elgon in Uganda, The European Journal of Development Research: 19 pages, Link.

Habiyaremye, N., Ochieng, J., Heckelei, T. (2021): Economic analysis of integrated vegetable–poultry production systems in the Babati District of Tanzania, Agriculture & Food Security 10(1): 11 pages, Link.

Hillen, J., Fedoseeva, S. (2021): E-commerce and the end of price rigidity?, Journal of Business Research 125: 63-73, Link.

Ihli, H. J., Seegers, R., Winter, E., Chiputwa, B., Gassner, A. (2021): Preferences for tree fruit market attributes among smallholder farmers in Eastern Rwanda, Agricultural Economics 53(1): pages 5-21, Link.

Jafari, Y., Britz, W., Guimbard, H., Beckman, J. (2021): Properly capturing tariff rate quotas for trade policy analysis in computable general equilibrium models, Economic Modelling 104(105620): 17 pages, Link.

Jafari, Y., Himics, M., Britz, W., Beckman, J. (2021): It is all in the details: A bilateral approach for modelling trade agreements at the tariff line, Canadian Journal of Agricultural Economics 69(3): 415-442, Link.

Kuhn, A., Britz, W. (2021): Long-Term Scenarios for Sub-Saharan Africa’s Agro-Food Markets with varying Population, Income and Crop Productivity Trends, Journal of Agricultural and Resource Economics 46(1): 20-36, Link.

Latka, C., Heckelei, T., Kuhn, A., Witzke, H.-P., Kornher, L. (2021): CAP measures towards environmental sustainability—Trade opportunities for Africa?, Q Open 1(1 (qoab003)): 1-21, Link.

Latka, C., Kuiper, M., Frank, S., Heckelei, T., Havlik, P., Witzke, H.-P., Leip, A., Cui, H. D., Kuijsten, A., Geleijnse, J. M., van Dijk, M. (2021): Paying the price for environmentally sustainable and healthy EU diets, Global Food Security 28(100437): 10 pages, Link.

Mouratiadou, I., Latka, C., van der Hilst, F., Müller, C., Berges, R., Bodirsky, B. L., Ewert, F., Faye, B., Heckelei, T., Hoffmann, M., Lehtonen, H., Lorite, I. J., Nendel, C., Palosuo, T., Rodriguez, A., Rötter, R. P., Ruiz-Ramos, M., Stella, T., Webber, H., Wicke, B. (2021): Quantifying sustainable intensification of agriculture: The contribution of metrics and modelling, Ecological Indicators 129(107870): 16 pages, Link.

Neuenfeldt, S., Gocht, A., Heckelei, T., Mittenzwei, K., Ciaian, P. (2021): Using Aggregated Farm Location Information to Predict Regional Structural Change of Farm Specialisation, Size and Exit/Entry in Norway Agriculture, Agriculture 11(7)(643): 22 pages, Link.

Rasch, S., Wünscher, T., Casasola, F., Ibrahim, M., Storm, H. (2021): Permanence of PES and the role of social context in the Regional Integrated Silvo-pastoral Ecosystem Management Project in Costa Rica, Ecological Economics 185(107027): 17 pages, Link.

Shang, L., Heckelei, T., Gerullis, M., Börner, J., Rasch, S. (2021): Adoption and diffusion of digital farming technologies - integrating farm-level evidence and system interaction, Agricultural Systems 190(103074): 17 pages, Link.

Tabe-Ojong, M. P. J., Alvarez, M., Ihli, H. J., Becker, M., Heckelei, T. (2021): Action on Invasive Species: Control Strategies of Parthenium hysterophorus L. on Smallholder Farms in Kenya, Environmental Management 2021: 10 pages, Link.

Tabe-Ojong, M. P. J., Heckelei, T., Baylis, K. (2021): Aspiration Formation and Ecological Shocks in Rural Kenya, The European Journal of Development Research 33: 833-860, Link.

Tabe-Ojong, M. P. J., Mausch, K., Woldeyohanes, T. B., Heckelei, T. (2021): Three hurdles towards commercialisation: integrating subsistence chickpea producers in the market economy, European Review of Agricultural Economics jbab023: 1-28, Link.

Tabe-Ojong, M. P. J., Molua, E. L., Ngoh, S. B., Beteck, S. E. (2021): Production, consumption and market diversification of grain legumes in the humid forest agroecology of cameroon, Sustainable Production and Consumption 27: 193–202, Link.

Tabe-Ojong, M. P. J., Nshakira-Rukundo, E. (2021): Religiosity and parental educational aspirations for children in Kenya, World Development Perspectives 23(100349): 9 pages, Link.

Tabe-Ojong, M. P. J., Ordway, E. M., Nkongho, R. N., Molua, E. L. (2021): Oil palm expansion among non-industrial producers in Cameroon: Potentials for synergy between agro-economic gains and ecological safeguards, Forest Policy and Economics 135(102645): 11 pages, Link.

Wilts, R., Latka, C., Britz, W. (2021): Who is Most Vulnerable to Climate Change Induced Yield Changes? A Dynamic Long Run Household Analysis in Lower Income Countries, Climate Risk Management 33(100330): 16 pages, Link.

Woldeyohanes, T. B., Kuhn, A., Heckelei, T., Duguma, L. (2021): Modeling Non-Cooperative Water Use in River Basins, Sustainability 13(15)(8269): 21 pages, Link.

Amrouk, E. M., Heckelei, T. (2020): Forecasting International Sugar Prices: A Bayesian Model Average Analysis, Sugar Tech 22: 552-562, Link.

Fedoseeva, S. (2020): (Dynamic) willingness to pay and e-commerce: Insights from sparkling wine sector in Russia, Journal of Retailing and Consumer Services 57: 12 pages, Link.

Gebrekidan, B. H., Heckelei, T., Rasch, S. (2020): Characterizing Farmers and Farming System in Kilombero Valley Floodplain, Tanzania, Sustainability 12 17(7114): 1-21, Link.

Jafari, Y., Britz, W. (2020): Brexit: an economy-wide impact assessment on trade, immigration, and foreign direct investment, Empirica 47(1): 17-52, Link.

Jafari, Y., Britz, W., Dudu, H., Roson, R., Sartori, M. (2020): Can Food Waste Reduction in Europe Help to Increase Food Availability and Reduce Pressure on Natural Resources Globally?, German Journal of Agricultural Economics 69(2): 143-168, Link.

Müller, B., Hoffmann, F., Heckelei, T., Müller, C., Hertel, T. W., Polhill, J. G., van Wijk, M., Achterbosch, T., Alexander, P., Brown, C., Kreuer, D., Ewert, F., Ge, J., Millington, J. D. A., Seppelt, R., Verburg, P. H., Webber, H. (2020): Modelling food security: Bridging the gap between the micro and the macro scale, Global Environmental Change 63: 16 pages, Link.

Sanz-Cobena, A., Alessandrini, R., Bodirsky, B. L., Springmann, M., Aguilera, E., Amon, B., Bartolini, F., Geupel, M., Grizzetti, B., Kugelberg, S., Latka, C., Liang, X., Milford, A. B., Musinguzi, P., Ng, E. L., Suter, H., Leip, A. (2020): Research meetings must be more sustainable, Nature Food 1: 187-189, Link.

Schäfer, A. C., Schmidt, A., Bechthold, A., Boeing, H. ., Watzl, B., Darmon, N., Devleesschauwer, B., Heckelei, T., Pires, S. M., Nadaud, P., van Dooren, C., Vieux, F. (2020): Integration of various dimensions in food-based dietary guidelines via mathematical approaches: report of a DGE/FENS Workshop in Bonn, Germany, 23–24 September 2019, British Journal of Nutrition: 1-8, Link.

Shang, L., Jafari, Y., Heckelei, T. (2020): Market and Welfare Impact Assessment of the Target Price-Based Subsidy Program in the Chinese Cotton Market, Asian Journal of Agriculture and Development (AJAD) 17.1: 53-70, Link.

Storm, H., Baylis, K., Heckelei, T. (2020): Machine learning in agricultural and applied economics, European Review of Agricultural Economics 47(3): 849-892, Link.

Tabe-Ojong, M. P. J., Boakye, J. A., Muliro, M. (2020): Mitigating the impacts of floods using adaptive and resilient coping strategies: The role of the emergency Livelihood Empowerment Against Poverty program (LEAP) in Ghana, Journal of Environmental Management 270: 8 pages, Link.

Tabe-Ojong, M. P. J., Molua, E. L., Nzie, J. R. M., Fuh, G. L. (2020): Production and supply of tomato in Cameroon: Examination of the comparative effect of price and non-price factors, Scientific African 10: 13 pages, Link.

Amrouk, E. M., Grosche, S., Heckelei, T. (2019): Interdependence between cash crop and staple food international prices across periods of varying financial market stress, Applied Economics: pp. 1-16, Link.

Amrouk, E. M., Heckelei, T., Grosche, S. (2019): International Interdependence between Cash Crop and Staple Food Futures Price Indices: A Dynamic Assessment, Journal of Agricultural and Applied Economics: 1-22, Link.

Engida, E., Srivastava, A. K., Kuhn, A., Gaiser, T. (2019): Household Welfare Implications of Better Fertilizer Access and Lower Use Inefficiency: Long-Term Scenarios for Ethiopia, Sustainability 11 14(3952): 24 pages, Link.

Fedoseeva, S., Herrmann, R. (2019): The price of sanctions: An empirical analysis of German export losses due to the Russian agricultural ban, Canadian Journal of Agricultural Economics: 15 pages, Link.

Frank, S., Havlik, P., Stehfest, E., van Meijl, H., Witzke, H.-P., Pèrez Dominguez, I., van Dijk, M., Doelman, J. C., Fellmann, T., Koopman, J. F. L., Tabeau, A., Valin, H. (2019): Agricultural non-CO2 emission reduction potential in the context of the 1.5 °C target, Nature Climate Change 9: 66-72, Link.

Habiyaremye, N., Tabe-Ojong, M. P. J., Ochieng, J., Chagomoka, T. (2019): New insights on efficiency and productivity analysis: Evidence from vegetable-poultry integration in rural Tanzania, Scientific African 6(e00190): 11 pages, Link.

Jafari, Y., Britz, W., Beckman, J. (2019): The impacts to food consumers of a Transatlantic Trade and Investment Partnership, Bio-based and Appplied Economics 7(2): 139-160, Link.

Minten, B., Dereje, M., Engida, E., Kuma, T. (2019): Coffee value chains on the move: Evidence in Ethiopia, Food Policy 83: 370-383, Link.

Molua, E. L., Tabe-Ojong, M. P. J., Meliko, M. O., Nkenglefac, M. F., Akamin, A. (2019): Efficiency differentials in resource-use among smallholder cassava farmers in southwestern Cameroon, Development in Practice: 11 pages, Link.

Neuenfeldt, S., Gocht, A., Heckelei, T., Ciaian, P. (2019): Explaining farm structural change in the European agriculture: a novel analytical framework, European Review of Agricultural Economics 46(5): 713-768, Link.

Othman, J., Jafari, Y. (2019): Economic Valuation of an Urban Lake Recreational Park: Case of Taman Tasik Cempaka in Bandar Baru Bangi, Malaysia, Sustainability 11 (11)(3023): 15 pages, Link.

Saint-Cyr, L. D. F., Storm, H., Heckelei, T., Piet, L. (2019): Heterogeneous impacts of neighbouring farm size on the decision to exit: evidence from Brittany, European Review of Agricultural Economics Volume 46(2): 237-266, Link.

Seidel, C., Heckelei, T., Lakner, S. (2019): Conventionalization of Organic Farms in Germany: An Empirical Investigation Based on a Composite Indicator Approach, Sustainability 11 (10)(2934): 16 pages, Link.

Srivastava, A. K., Mboh, C. M., Gaiser, T., Kuhn, A., Engida, E., Ewert, F. (2019): Effect of mineral fertilizer on rain water and radiation use efficiencies for maize yield and stover biomass productivity in Ethiopia, Agricultural Systems 168: 88-100, Link.

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