Dr. Ibrahim Macharia

Position: Senior Lecturer and Chair of the Department 
Department: Agricultural Economics 
Contact Address: P.O. Box 43844 , 00100 Nairobi
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Area of Specialization

  • Social- economic and environmental impact assessment

Research Interests

  • Social- economic and environmental impact of agricultural technologies, externalities of development project, the impact of climate change and agricultural sustainability

Conference Presentations

  • Macharia Cereals consumption patterns in Tanzania Kenyatta university/Kenya “Building a new Generation of Agricultural Scientists” held on December 2014

  • Macharia Post-Harvest losses in Kenya ICIPE/ Kenya Post-Harvest losses in Africa- Analytical review and synthesis workshop, Feb, 2013
  • Macharia Postharvest losses and postharvest innovations on key horticultural crops - Kenya Machakos/ Kenya AGRA Expert and Stakeholder Workshop on Waste and Spoilage Issues, Challenges Facing Smallholder Farmers and Potential Intervention Points, April, 2013
  • Macharia Ethiopia Transformational Leadership in Agribusiness workshop, December 2013
  • Macharia Potential economic and poverty impact of improved chickpea technologies in Ethiopia Iguaçu/ Brazil International Conference of Agricultural Economists, August, 2012
  • Macharia Planning and Implementing Plans Kenyatta university/Kenya STEP training workshop, March, 2012
  • Macharia Determinants of Pesticide Handling Practices in Vegetable Production in Kenya. Hamburg/ Germany Tropentag, Oct, 2009.
  • Macharia External Costs of Pesticide Use in the Vegetable Production in Kenya. Nairobi/ Kenya Proceedings of the Horticulture Seminar on Sustainable Horticultural Production in the Tropics, Dec 2008.
  • Macharia Economic Impact Assessment of Training French beans Smallholders on Integrated Pest Management (IPM) and Good Agricultural Practices (GAP) through farmer field school. Nairobi/ Kenya Proceeding of fourth Workshop on Sustainable Horticultural Production in the Tropics, Nov 2004.

  • Macharia Ex-ante Economic Impact Assessment of the Introduction of the Diamondback Moth Parasitoid, Diadegma semiclausum, in Kenya. Beijing/ China XV International Plant Protection Congress May, 2004.


  • Ruth, C., Macharia, I., Alice W. Charles, A. O. M and Zeyaur R. K. 2017 Impact assessment of push-pull pest management on incomes, productivity and poverty among smallholder households in Eastern Uganda Food Security 9 (6): 1359–1372 Sustainability, 15, (4): 887-902

  • Luvanda A.M., Macharia I.N., Chikamai B. N and Wambugu S.K 2017 Socio-economic factors influencing collection of gum myrrh and opoponax from the wild in wajir county, Kenya. International Journal of Recent Scientific Research. 8(5): 17165-17172.

  • Midingoyi G.S-K., Macharia, I., Ong’amo, G., Abonyo, E., Ogola, G., De Groote, H. and LeRu, B.,2016 Assessing the long-term welfare effects of the biological control of cereal stemborer pests in East and Southern Africa: Evidence from Kenya, Mozambique and Zambia. Agriculture, Ecosystems and Environment, 230, pp.10-23
  • Macharia, I 2015 Pesticides and Health in Vegetable Production in Kenya BioMed Research International Volume 2015 (2015)
  • Ndungu, S., Macharia, I., Kahuthia-Gathu, R. and Githaiga, W.R 2013 Impact of Organic Vegetable Production System in Kiambu and Kajiado Counties of Kenya. Journal of Environmental Science and Engineering A2, (4). 256-266.
  • Ouma, E., Macharia, I., Birachi, E., Garming, H., Nyagaya, M., Pypers, P., Ochieng, J., Blomme, G., van Asten, P., Vanlauwe, B
  • 2013 Agricultural technology diffusion and adoption in banana and legume based systems of Central Africa.
  • Karani-Gichimu, C., Macharia, I. and Mwangi, M 2013 Assessment of passion fruit orchard management and farmers’ technical efficiency in Central-Eastern and North-Rift Highlands, Kenya Journal of Economics and Sustainable Development, 5(2): 183-190
  • Karani-Gichimu, C., Macharia, I. and Mwangi, M 2013 Assessment of Input-Output Transformation in Purple Passion Fruit Production in Central-Eastern and North-Rift, Kenya. Current Research Journal of Economic Theory 5(2): 32-37
  • Macharia, I., Mithöfer, D. and Waibel, H 2012 Pesticide handling practices by vegetable farmer in Kenya Environment, Development and Sustainability, 15, (4): 887-902
  • Macharia, I. 2010 Indirect Costs of Pesticide Use in the Vegetable Production in Kenya.
  • Macharia, I., Mithöfer, D. and Waibel, H 2009 Potential Environmental Impacts of Pesticides Use in the Vegetable Sub-sector in Kenya. African Journal of Horticultural Sciences, 2: 138-151.
  • Macharia, I., Mithöfer, D. and Löhr, B 2006 Update of the Ex-ante Socio-economic Impact Assessment of the Biological Control of Plutella xylostella (Diamondback moth) in Kenya.
  • Macharia, I., Löhr, B. and De Groote, H 2005 Assessing the Potential Impact of Biological Control of Plutella xylostella (diamondback moth) in Cabbage Production in Kenya. Crop Protection, 24: 981-989

Last Updated on Wednesday, 14 November 2018 13:24

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