Kwasi Ohene-Yankyera
Department of Agricultural Economics, Agribusiness and ExtensionLife SciencesHealth SciencesSocial SciencesPhysical Sciences

Kwasi Ohene-Yankyera

36 Publications23 Research Themes22 Open Access
Research Overview & Focus

The researcher's work centers on understanding the integration of agricultural practices in rangeland contexts, particularly focusing on livestock management, especially cow farming. Using DEA (data envelopment analysis) as a methodological tool, the study evaluates efficiency and innovation in agricultural practices. The emphasis is on seed yam production, which serves both economic benefits and environmental valuation through its demand and supply dynamics. The researcher investigates how farmers in Ghana manage their inputs to enhance productivity, address income distribution challenges, and assess the impact of agricultural technologies on food security and livelihoods. The study highlights the influence of technology adoption on farming decisions and perceptions of environmental goods, while also examining the broader implications for policy, microfinance, and rural development strategies.

Faculty Biography

Dr.  Kwasi Ohene-Yankyera    is a Senior Lecturer and is currently engaged in teaching and research, as well as supervising both graduate and undergraduate students at the Kwame Nkrumah University of Science and Technology in Ghana.  He has a number of both primary and secondary publications/articles/reports to his credit. He has had relevant experience in research at both the domestic and international level.  He was, for five years, the socio-economist for the IDRC-sponsored Agro forestry Project at the Forest Products Research Institute (now Forestry Research Institute of Ghana) in Ghana, as well as a consultant for the World Bank/IBRD Land Tenure and Agricultural Productivity in sub-Saharan Africa Survey (1987-1988).  He participated in the Reseau-Netherlands Project on Farmers’ Strategies for the Attainment of Food Security in Central and West Africa (1992).  He has served as a resource person for the Ricerca e Cooperazione (Italian NGO) in training small farmers in farm management, farm records-keeping and accounting (1991), and for the Root and Tuber Improvement Programme of the Agriculture Ministry in Ghana in organising training workshop on Socio-economics for Biological Scientists and Impact Assessment of Small-farmer Technologies (2003).  Between 1996-2000 enrolled for a PhD programme at the University of Reading, UK and completed a major research of farming systems in West Mamprusi and West Gonja districts in northern Ghana for which the University of Reading, UK awarded him a PhD degree.  At the international level, he was a Research Associate at the World Bank-assisted Agricultural Development Projects for the Federal Department of Agriculture and Rural Development in Nigeria (1983-1987).  He was part of a multinational research team that explored Farmers’ Adoption of Soil Conservation Strategies with other scientists from Burkina Faso, Benin and Togo and funded by the African Economic Research Consortium (AERC) in Nairobi, Kenya. In 2004, he undertook a course at the International Centre for Development-oriented Research in Agriculture (ICRA) in the Netherlands and was awarded a Diploma in Interdisciplinary Research for Natural Resource Management. He has undertaken a major baseline survey for the Root and Tuber Improvement Programme (RTIP) of the Ministry of Food and Agriculture (MOFA) and has collaborated with the International Institute of Tropical Agriculture for studies on urban yam consumption patterns in Ghana, for which his research student was awarded a PhD degree.  More recently he has been part of a team contracted by the International Institute of Tropical Agriculture to carry out studies on yam production and marketing in Ghana.  He was also on a team carrying out baseline surveys of farming households in northern Ghana for the N2 Africa Project, a Bill and Melinda Gates sponsored Project aimed at improving soil nitrogen in Africa. He has been the Co-ordinator for the DANIDA funded research on Enhancing the Performance and Growth Potential of Street Food Vending for Accelerated Socio-Economic Development in Ghana, (2012-2016).  Part of the Project required developing Training Materials for training street food vendors in hygienic practices and in small business management.  He has also been a consultant to the Ministry of Environment, Science, Technology and Innovation for the Mid-Term Review of the Sustainable Land and Water Management Project (SLWMP), an initiative of the Ghana Government/Global Environmental Facility.  He has also consulted for the Council for Vocational and Technical Education in the training of processors in the Milk Value Chain and is a contributor to the “Training Manual on Smallholder Milk Production and Processing”, sponsored by COTVET through its Skills Development Fund.  He is currently the Ghana Leader for the Overseas Development Association (ODA-United Kingdom)- sponsored study titled "Food Security Impacts of Industrial Crops Expansion in sub-Saharan Africa (2015-Present) that aims to explore the impacts of growing of industrial crops by African small holder farmers on their food and nutrition security. His administrative experience has included membership of several Boards at the university and has been the Head of Department of Agricultural Economics and Agribusiness and Extension (2001-2002 and 2011-2012.  He was also a Member of the Council of Kwame Nkrumah University of Science and Technology (2008-2012).  He was also a Member of the Board of the Ghana Universities Staff Superannuation Scheme-GUSS (2008-2012) and has served on several boards and committees within the KNUST.  He was also the National President of the University Teachers' Association of Ghana (2008-2010) as well as the Local President of the Association at the Kwame Nkrumah University of Science and Technology (2008-2012).   He is currently a Board Member of Enterprise Development Unit of the Kwame Nkrumah University of Science and Technology.

Key Research Themes (23)
Life Sciences

Agricultural Economics and Policy

Life Sciences

Agricultural Innovations and Practices

Life Sciences

Agricultural risk and resilience

Life Sciences

Agriculture and Rural Development Research

Life Sciences

Agronomic Practices and Intercropping Systems

Health Sciences

Child Nutrition and Water Access

Social Sciences

Economic and Environmental Valuation

Social Sciences

Economic Growth and Productivity

Social Sciences

Economics of Agriculture and Food Markets

Social Sciences

Efficiency Analysis Using DEA

Social Sciences

Entrepreneurship Studies and Influences

Life Sciences

Fisheries and Aquaculture Studies

Life Sciences

Food Safety and Hygiene

Health Sciences

Food Security and Health in Diverse Populations

Social Sciences

Global trade, sustainability, and social impact

Social Sciences

Income, Poverty, and Inequality

Social Sciences

Innovation and Socioeconomic Development

Life Sciences

Livestock and Poultry Management

Social Sciences

Microfinance and Financial Inclusion

Physical Sciences

Oil Palm Production and Sustainability

Social Sciences

Poverty, Education, and Child Welfare

Physical Sciences

Rangeland Management and Livestock Ecology

Physical Sciences

Wastewater Treatment and Reuse

Publications (36)

Unlocking sustainable partnerships: exploring the willingness of oil palm producers to engage in contract farming initiatives

2024Agricultural Innovations and PracticesDOI: 10.1108/ijse-03-2024-0284

Author response for "Unlocking sustainable partnerships: exploring the willingness of oil palm producers to engage in contract farming initiatives"

2024Global trade, sustainability, and social impactDOI: 10.1108/ijse-03-2024-0284/v2/response1

Uptake and income distribution effects of targeted farm technologies on rice farmers in forest and Guinea Savannah Zones of Ghana: Does gender matter?

Open Access
2023Poverty, Education, and Child WelfareDOI: 10.1016/j.jafr.2023.100516

The impact of uptake of selected agricultural technologies on rice farmers’ income distribution in Ghana

Open Access
2022Income, Poverty, and InequalityDOI: 10.1186/s40066-021-00339-0

Profitability and technical efficiency of rice farms using traditional and improved milling machines: Evidence from Mali

2021Efficiency Analysis Using DEADOI: 10.1080/20421338.2021.1960539

Economic benefits of livestock management in Ghana

Open Access
2021Rangeland Management and Livestock EcologyDOI: 10.1186/s40100-021-00191-7

Improving Soya Bean Productivity for Poverty Alleviation and Food Security in Upper West Region of Ghana: A Resource Use Efficiency Analysis

Open Access
2021Agronomic Practices and Intercropping SystemsDOI: 10.20961/carakatani.v36i1.44311

Quantifying the impact of agricultural technology usage on intra-household time allocation: Empirical evidence from rice farmers in Ghana

2020Agricultural risk and resilienceDOI: 10.1016/j.techsoc.2020.101434

Impact of oil palm-related activities on women’s empowerment in Ghana

2020Oil Palm Production and SustainabilityDOI: 10.1016/j.wdp.2020.100225

Analysis of seed yam varieties, sources and quantity demanded by farmers in major yam producing districts in Ghana

Open Access
2019Agricultural Economics and PolicyDOI: 10.4314/gjas.v54i2.5

Determinants of cost inefficiency in poultry production: evidence from small-scale broiler farms in the Ashanti Region of Ghana

2019Efficiency Analysis Using DEADOI: 10.1007/s11250-019-02115-6

A latent class modelling approach to evaluating farmers’ preferences for pona seed yam certification systems and their willingness to pay in Ghana

Open Access
2019Agricultural Innovations and Practices

Effect of RTIMP's commercialisation of cassava on household food security in the Cape Coast Metropolis in the central region of Ghana

Open Access
2019Food Security and Health in Diverse Populations

Gender, selected agricultural innovations and intra-household income in Ghana

Open Access
2019Microfinance and Financial InclusionDOI: 10.22004/ag.econ.295705

Gender Effect on Adoption of Selected Improved Rice Technologies in Ghana

Open Access
2018Agricultural Innovations and PracticesDOI: 10.5539/jas.v10n7p390

Determinants of response of street food entrepreneurs in Ghana to business management training

2018Entrepreneurship Studies and InfluencesDOI: 10.1108/jadee-01-2016-0006

Consumers’ Familiarity and Use of Natural Health Products

Open Access
2018Innovation and Socioeconomic DevelopmentDOI: 10.22004/ag.econ.277795

Is there any economics in smallholder cocoyam production? Evidence from the forest agro-ecological zone of Ghana

Open Access
2017Livestock and Poultry ManagementDOI: 10.1186/s40066-017-0121-9

Constraints to growth of micro and small-scale enterprises in Ghana: A case of street food enterprises

Open Access
2016Microfinance and Financial InclusionDOI: 10.5897/jdae2016-0732

Securing safe food, order in cities and protected urban livelihoods: Modelling of preference for regulations of informal street food trade in Kumasi

2016Food Safety and HygieneDOI: 10.1016/j.wdp.2016.10.003

Gender Role, Input Use and Technical Efficiency among Rice Farmers at Ahafo Ano North District in Ashanti Region of Ghana

Open Access
2016Agricultural Innovations and PracticesDOI: 10.12691/jfs-4-2-1

Decomposition Analysis of Technological Change in Rice Production in Ghana

Open Access
2016Economic Growth and ProductivityDOI: 10.9734/bjast/2016/29805

Health Risk Perception on Excreta Reuse for Peri-urban Agriculture in Southern Ghana

Open Access
2014Wastewater Treatment and Reuse

Constraints and motivations to sanitation business in peri-urban communities in Ghana

2014Child Nutrition and Water AccessDOI: 10.2166/washdev.2014.072

Seed yam demand and supply gap in Ghana: Implications for commercialisation of seed yam production

Open Access
2014Agricultural risk and resilience

Households’ Latrine Preference and Financing Mechanisms in Peri-urban Ghana

2014Child Nutrition and Water Access

Determinants of Factors that Influence Small Ruminant Livestock Production Decisions in Northern Ghana: Application of Discrete Regression Model

Open Access
2014Agricultural Innovations and Practices

Willingness to Pay for Faecal Compost by Farmers in Southern Ghana

2014Economic and Environmental Valuation

Gender, resource use and technical efficiency among rice farmers in the Ashanti Region, Ghana

2013Efficiency Analysis Using DEA

Technical efficiency in Ghanas cocoa industry: Evidence from Bibiani-Anhwiaso-Bekwai District

Open Access
2012Efficiency Analysis Using DEADOI: 10.5897/jdae.9000125

Estimation of Margins and Efficiency in the Ghanaian Yam Marketing Chain

Open Access
2012Fisheries and Aquaculture StudiesDOI: 10.22004/ag.econ.197964

Food-Away-From-Home (FAFH) Expenditure Patterns for Ghanaian Urban Households: Effects of Income, Gender and Household Demographics

2012Child Nutrition and Water AccessDOI: 10.18848/2160-1933/cgp/v01i01/40577

Economics of small-scale seed yam production in Ghana: implications for commercialization.

2011Agricultural Innovations and Practices

Determinants of dairy consumption expenditure in urban communities of Southern Ghana

Open Access
2009Economics of Agriculture and Food MarketsDOI: 10.4314/just.v29i1.46444

Optimal rice/colocasia cropping systems in the Ashanti, Eastern and Central regions within the semi-deciduous forest zone of Ghana.

Open Access
2007Agriculture and Rural Development ResearchDOI: 10.4314/just.v27i2.33040

Determinants of farm size in land-abundant agrarian communities of northern Ghana.

Open Access
2005Agriculture and Rural Development ResearchDOI: 10.4314/just.v24i2.32916
Academic Metrics
DepartmentDepartment of Agricultural Economics, Agribusiness and Extension
Total Publications36
Research Themes23
Open Access Papers22

Department of Agricultural Economics, Agribusiness and Extension

Kwame Nkrumah University of Science and Technology

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