Exploring farmers’ willingness to pay for drought tolerance in maize in Zimbabwe

The effects of drought on maize on an experimental plot, part of the CIMMYT-led Drought Tolerant Maize for Africa (DTMA) project's drought screening program, at the the Kenya Agricultural Research Institute's Kiboko Research Station. Drought tolerant lines will still produce some seed even under the harshest drought conditions, and can be used in further breeding. For more about DTMA see: http://dtma.cimmyt.org. Photo credit: Anne Wangalachi/CIMMYT.

Photo credit: Anne Wangalachi/CIMMYT.

Adoption of new technologies depends significantly on whether potential users are willing to pay a premium for the associated benefits. The new study explores farmers’ willingness to pay for drought tolerance (DT) in maize, a crop playing a leading role in the food security in southern Africa. Focusing on Zimbabwe, this research aimed at estimating the implicit prices farmers would be ready to pay for this trait compared to other preferred traits, such as, for example, grain yield, cob size, and texture.

Background

Drought is a widespread phenomenon across Africa south of the Sahara with an estimated 22% of mid‐altitude/subtropical and 25% of lowland/tropical maize growing in regions affected annually by seasonal water shortages. Climate change is likely to increase average temperatures by of 2.1 °C in the region, which will lead to even greater water scarcity, particularly in Southern Africa, in the coming decades. Studies have indicated that an increase in temperature of 2 °C would result in grain yields decrease by 13-20%. For every day with temperature about 30 °C yield is reduced by 1% under normal conditions and by 1.7% under drought conditions.

There is evidence that the use of new crop varieties, such a drought tolerant maize, and improved management technics can offset yield losses by up to 40%. While the development of these new varieties and related technologies is laudable, their impact depends very much on the extent to which they are adopted by farmers.

The study

This study was conducted across all geographical districts of Zimbabwe and included 1400 households. It finds that farmers in Zimbabwe are willing to pay a premium for drought tolerance equal to 2.56, 7, 3.2, and 5 times higher than for an additional ton of yield per acre, bigger cob size, larger grain size, and covered cob tip, respectively. It also finds that women are more interested in DT than men. The authors suggest that this might be due to women’s higher sensitivity to the risks associated with food shortage and a higher relative risk aversion in general. Among other interesting findings – households headed by those engaged in temporary employment to supplement their livelihoods are more interested in drought tolerance in maize compared to those headed by farmers.

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Tanzanian farmer holds drought tolerant maize cob. Photo credit: F. Sipalla/CIMMYT

Based on their findings, authors recommend that marketing campaigns emphasizing the value of the new maize cultivars should be tailor-made with the identified, the most enthusiastic interest groups in mind. This will enable faster dissemination of the new technology.

Read the full article and watch the summary presentation by the authors. Open Access funded by the Bill & Melinda Gates Foundation.

Citation:

Girma T. Kassie, Awudu Abdulai, William H. Greene, Bekele Shiferaw, Tsedeke Abate, Amsal Tarekegne, Chloe Sutcliffe. Modeling Preference and Willingness to Pay for Drought Tolerance (DT) in Maize in Rural Zimbabwe. World Development. In Press, Corrected Proof. Available online March 6, 2017. http://dx.doi.org/10.1016/j.worlddev.2017.02.008


The authors express their gratitude to the Bill & Melinda Gates Foundation (BMGF) and the Howard G. Buffett Foundation (HGBF) for funding this study. The study was conducted as part of a broad partnership, known as the Drought-Tolerant Maize for Africa (DTMA) Initiative, led by the International Maize and Wheat Improvement Center (CIMMYT) and the International Institute of Tropical Agriculture (IITA), that involves national agricultural research and extension systems, seed companies, nongovernmental organizations (NGOs), community-based organizations (CBOs), and advanced research institutes. Its activities build on longer term support by other donors, including the Swiss Agency for Development and Cooperation (SDC), the German Federal Ministry for Economic Cooperation and Development (BMZ), the International Fund for Agricultural Development (IFAD), the United States Agency for International Development (USAID), and the Eiselen Foundation. The first author has also benefitted from the generous funding by the CGIAR Research Program on Policies, Institutions, and Markets.


PIM's support for this research was provided under Flagship 1: Technological Innovation and Sustainable Intensification