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  • Area of Specialization: Decision making, Production Economics, Farm Management, Environmental Impact Assessment, Gender, Mathematical Programming,
  • Department of Agric Extension

  • Ovuevuraye Dicta OGISI, Ph.D., Reading, U. K. (Call name: Dicta) Professor of Agricultural Economics & Principal Socio-Economic Consultant & Professional Profile Professor O’raye Dicta Ogisi (Nee: Akatugba) is a Professor of Agricultural Economics Delta State University, Abraka. She was Deputy Vice Chancellor acting), Michael and Cecilia Ibru University (MCIU), Agbarha – Otor, Delta State, Nigeria September 2017 to October 2018 while on sabbatical leave. She has been honoured with several prizes / honours and Awards including Fellow of Farm Management Association of Nigeria (ffaman), First Female Chairman, Committee of Deans and Provost of Postgraduate Schools in Nigerian Universities and sixth Dean of Postgraduate School (First Female Dean of Postgraduate School) Delta State University, Abraka. First Female Director of SIWES, Delta State University, Abraka. The only Female Director of Weekend Degree Programme, Delta State University, Abraka from Inception in 1998 till it closed. She is a researcher, instructor, lecturer and consultant with 34 years post-graduation experience in Nigeria and Europe. She obtained her Ph.D. in Agricultural Economics from the University of Reading, United Kingdom in 1994 as a Commonwealth (British Council) Scholar. Her interest spans Agricultural Development, Macroeconomic policy, Resource Economics, Development Economics, Project Evaluation, Gender Issues and Environmental Impact Assessment. She has co-authored two books for tertiary institutions, many chapters in textbooks, many articles in Journals and six technical / Research reports. She has edited four Books, two Conference Proceedings and serves as Editor to several Journals. She delivered the 38th in the series of Inaugural Lectures in Delta State University, Abraka titled “Agricultural Reforms without Food Security: A Paradox” on Thursday 21st August 2014, which was well attended and well received. She has attended and participated in several International Conferences including the Conferences of International Association of Agricultural Economists (IAAE), International Farm Management Association (IFMA) and Africa Farm Management Association (AFMA) • She has headed two Academic Departments in Delta State University namely Department of Agricultural Economics, Faculty of Agriculture 1992 / 1993 and 2006/2007 and the Department of Economics, Faculty of the Social Sciences 1998, 1999, 2000 and 2001, that is, four terms. • She was Director of Weekend Degrees and Diploma Programs 2001 to 2002 • Dicta Ogisi demonstrates high team spirit personality, leadership and initiatives. Along with her team, she transformed an ailing Weekend Degree Programmes Directorate of the Delta State University from shambles to the Peak within ten Months. • She was Director of Students Industrial Works Experience Scheme (SIWES) Directorate in Delta State University for four years (2008 to 2012) two terms. During this time, she achieved high capacity built in Students and emphasized the drive for entrepreneurships in all practical fields. After using her Sabbatical and accumulated leave with Health, Safety & Environment Department of Shell Petroleum Development Company (SPDC) Nigeria 2002 to 2004, she returned to Delta State University to follow up on her career of teaching, research and contributing to human capital development. • She was appointed by the Vice-Chancellor of DELSU, Professor John O. Enaohwo as Head and Chairman, Department of Agricultural Economics and Extension, Faculty of Agriculture, Asaba Campus, Asaba 2006/2007 session. • She was appointed the Director the Students Industrial Work Experience Scheme (SIWES)” of Delta State University by past Vice- Chancellor Professor Enaohwo and then by Professor Eric Arubayi ((2008 to 28th February 2012, that is, two terms) while he was the Vice in addition to lecturing at undergraduate and postgraduate levels as well as research. • She has supervised several Masters of Science and 5 Ph. D studies carried out by Postgraduate students in Delta State University. • She was a Member of the Governing Council of Delta State University, Abraka as a representative of University Congregation- a position she occupied through election by all graduate employees of Delta State University 2009 to 2014. • Professor Dicta Ogisi was a member of the Board of Directors, Delta State University Investment Limited (DIL) and Chairman, Post Graduate School Board. • Professor (Mrs) Ovuevuraye Dicta Ogisi was the Dean of the Postgraduate School, Delta State University (2012 to Dec. 2015). • Member, Appointments and Promotion Committee, Delta State University, Abraka 2012 to 2016 • Member of Delta State University Governing Council, representing University Senate 2014 to 2016. • Member, University Tenders Board, Committee of Council, Delta State University, Abraka • Member, University Security Committee, Committee of Council, Delta State University, Abraka • Member, University Junior Staff Disciplinary Committee, Committee of Council, Delta State University, Abraka (2015 to 2016) • She delivered her Inaugural Lecture titled “Agricultural Reforms without Food Security: A Paradox” on 21st August 2014 at Pre-degree hall Abraka which was very well attended. Contribution to Infrastructural Development in Delta State University • In addition to research, studies and talks, Professor Ovuevuraye Dicta Ogisi has contributed to infrastructural Development in Delta State University, Abraka through prudence, financial transparency, foresight and determination; she initiated and completed 5- office room building extension and modification in site II, Delta State University, Abraka and Weekend Degree complex (office spaces and lecture Halls) in site 3, Delta State University, Abraka using share of internally generated revenue (IGR) between 1998-2002. These landmark achievements were due to excellent working relationships between her and University leadership of Prof. U.A. Igun. • Between 2008- March 2012, she further developed the facilities of the SIWES Directorate making the offices more useful and efficient using share of IGR. This was achieved through vision, determination, impact orientation and the excellent working relationship with the two Vice-Chancellors that led Delta State University, Abraka namely, Professor Eric Arubayi and Prof. John Okpako Enaohwo. • She drove the process of moving the Postgraduate School of Delta State University, Abraka to world class in terms of efficiency, responsive leadership, mentoring staff, timely delivery of Students, tasks and targets as well as Infrastructure / Landscaping when she was the Dean of the Postgraduate School (March 2012 to December 2015.) Outside Delta State University • She is the pioneer Ag. Deputy Vice- Chancellor, Michael and Cecilia Ibru University (MCIU), Agbarha- Otor, Delta State 2017 to 2018. • She also doubled as the Dean, Faculty of Management and Social Sciences, Michael and Cecilia Ibru University, Agbarha-Otor, Delta State.- Multitasking. 2017 to 2018 • She was the National President of the Farm Management Association of Nigeria (Faman), an umbrella association for Agricultural Economists, Agricultural Extension, Economist, Agriculturist, practicing farmers and policy makers. Faman is an affiliate of Africa Farm Management Association (AFMA) and International Farm Management Association ( IFMA) from 2012 to December 2016 • She had served as the 1st Vice President Farm Management Association of Nigeria 2005-2009. • She was Chairman, Committee of Deans and Provosts of Postgraduate Schools in Nigeria’s University (CDPGS) December 2014 to December 2016 • She had served as Treasurer, of CDPGS 2013 to May 2015 • She is a member of seven National and International academic Associations • Country Representative for International Academy of African Business and Development. • She has successfully organized at least four national/international conferences one as chair, local organizing committee. • She worked with the Shell Petroleum Development Company (SPDC) Nigeria from 2002 to 2005 in various contractual agreements as Social Impact Assessment Expert, Administrator and liaison between SPDC and NNPC (NAPIMS) on Environmental Services Contracts and other Deliverables. • She was Delta State Consultant on Fadama III- a Federal Government / IFPRI nationwide programme on developing sustainable livelihoods of agricultural and rural families 2009 to 2011. • She was Group Leader on Post Impact Assessment (PIA) of the SPDC/USAID/IITA Cassava Enterprise Development Project (CEDP) between from March – July 2010 for Bayelsa, Delta and Edo States, Nigeria. Made presentation in IITA, Ibadan 2ndJune 2010. • She reviews articles for many Journals and refereed books. She is editor to many scholarly / academic Journals within and outside Nigeria. She has examined several postgraduate students in other Universities in Nigeria among which are, Obafemi Awolowo University, Ile-Ife, Osun State; Ambrose Alli University, Ekpoma, Edo State; University of Nigeria, Nsukka; Federal University of Technology, Akure, Ondo State; Federal University of Agriculture, Makurdi, Benue State; She has assessed candidates for promotion to the ranks of Associate / full Professors within Delta State University and other Universities (external assessments) as well as other tertiary Institutions in Nigeria and International Assessments for Promotion from Universities in other Countries. Some of which are, University of Calabar, University of Abuja, University Agriculture, Umudike, Federal University, Oye, Ekiti State and Methodist University College, Ghana She is a Consultant to several companies including SPDC, Development Policy Centre, Ibadan, Spencer and Associates. She also consults for Delta State Government and nationally. She is a nationally known expert on social impact assessment (SIA) and a resource person for the Federal Ministry of Environment Abuja. She was Assistant Team leader for Formative Evaluation of the SPDC/USAID/IITA sponsored Cassava Enterprise Development Project (CEDP) which took place from August 2008-April 2009.Debriefed in Port Harcourt 2nd April 2009. • Her Consultancies / research on Livelihoods of Farm Families are outstanding. • She was on the team of experts selected by DESOPADEC (Delta State Oil Producing Areas Development Commission) to evaluate Cassava Production, Identify Sustainable Cassava Processing Plant, Install and Raise. Capacity of farmers / processors to generate income, employment and standard of living is a sustainable manner. • She is also one of the Directors of Centre for Environment and Population Development (CEPD) an NGO with Emeritus Professor Andrew Onokerhoraye, a former Vice-Chancellor of the University of Benin, Benin City, Nigeria as the Chief Executive Officer. • She has delivered several keynote addresses in Nigeria.
    My Publications
  1. Eguono Aramide IKPOZA, Felix Odemero ACHOJA, Oraye Dicta OGISI, Christy ULIONG (2021) Stochastic frontier analysis of catfish (Clarias gariepinus) aquaculture agribusiness for sustainable fisheries development: Evidence from Nigeria, Aquatic Research Vol.4 (1) Pages: 1-9

  2. O’Raye Dicta Ogisi & Toritseju Begho (2021) Covid 19: Ramifications for progress towards the sustainable development goals (SDGs) in Nigeria, International Review of Applied Economics Vol.35 (2) Pages: 256-268


  4. Felix Odemero Achoja, Emmanuel Chukudinife Enujeke, Oraye Dicta Ogisi, Rebecca Tega Overehirha (2020) MULTINOMIAL REGRESSION ANALYSIS OF YAM (DIOSCOREA SPP.) CONSUMERS’ PREFERENCES AND VARIETAL DIVERSIFICATION PATTERN IN NIGERIA, Asian Journal of Agriculture and Rural Development Vol.10 (2) Pages: 698-707

  5. Ofuoku, A. U.* and Ogisi, D. O. (2020) Change management in vegetable farming: the case of farmers in Delta State, Nigeria, International Journal of Agricultural Technology,%20A.%20U..pdf Vol.16 (6) Pages: 1445-1462

  6. Felix Odemero ACHOJA, O’raye Dicta OGISI, Daniel Chukwujioke OKEKE (2019) Causal Linkages between Flood Hazards and Food Insecurity: Evidence from Nigeria, Çukurova J. Agric. Food Sci. Vol.34 (2) Pages: 91-99

  7. Achoja Felix Odemero, O. Dicta Ogisi and Daniel Chukwujioke Okeke (2019) 1. Causal Linkages between Flood Hazards and Food Security: Evidence from Nigeria. , Cukurova Journal of Agric. Food Sci
    Vol.34 Pages: 91-99

  8. Adarighofua, Ejiro T., P.C. Egbon and O. D. Ogisi (2019) Effect of Oil Pipeline Vandalism on the Economy of Niger Delta Region, Nigeria, Proceedings of Academic World International Conference, Brisbane, Australia. April 2019
    Vol. Pages: 1-5

  9. Dania Evelyn N and O. Dicta Ogisi (2018) Human Capital Investment and Economic Growth in Nigeria, Proceedings of the iStreams Multidisciplinary Cross-Border Conference, University of Ghana, Legon, Accra, Ghana
    Vol. Pages: 39-48

  10. Odjuvwuederhie Emmanuel Inoni, ’Oraye Dicta Ogisi, Felix Odemero Achoja (2017) PROFITABILITY AND TECHNICAL EFFICIENCY IN HOMESTEAD CATFISH PRODUCTION IN DELTA STATE, NIGERIA, Economics of Agriculture Vol.16 (6) Pages: 1445-1462

  11. Ogisi, O. Dicta & B. O. Akarue (2016) Growth and Supply Response of Nigeria’s Soybean Output (1973 -2016), Nigerian Journal of Farm Management. Vol.16 No.2 pp1-12
    Vol.16(2) Pages: 1-12

  12. Ogisi, O. Dicta (2016) Challenges on Girl-Child Education in Nigeria , Journal of Women in Colleges of Education (SOSOJOWICE)
    Vol.1 Pages: 4-13

  13. Ogisi, O. Dicta., Begho Toritseju, and Ewolor Scholastica Agatha. (2014) 3. Resource Use Efficiency and Profitability of Fluted Pumpkin Production in Ukwuani Local Government Area of Delta State, Nigeria. , American Journal of Agriculture and Forestry
    Vol.2 (4) Pages: 129 -134

  14. Ogisi O.D., O. O. Ogunrinde & T. Begho (2014) 4. Determinants of Supply and Demand of Chrysophyllum Albidum (African Star Apple) in Abeokuta North Local Government Area, Ogun State, Nigeria. , Asian Journal of Agricultural and Food Sciences
    Vol.4 Pages: 324-328

  15. Begho, T. and O. Dicta Ogisi (2014) 5. Institutions, geographic regions and technical efficiency: evidences from small farms in Nigeria, European Journal of Physical and Agricultural Sciences, 2(2): 7-14
    Vol.2 (2) Pages: 7-14

  16. Begho, T. and O. Dicta Ogisi (2014) 6. Bayes Approach to the Estimation of Technical Efficiency and Returns to Scale in Agriculture: A Case of Nigeria. , Asian Journal of Agricultural Extension, Economics & Sociology
    Vol.3 (4) Pages: 275-284

  17. Ogisi O’raye Dicta, Begho Toritseju*, Ewolor Scholastica Agatha (2014) Resource use efficiency and profitability of fluted pumpkin production in Ukwuani local government area of Delta State, Nigeria, American Journal of Agriculture and Forestry Vol.2 (4) Pages: 129-134

  18. Ogisi O’raye Dicta, Begho Toritseju and O. Alimeke Bennet (2013) Gender Roles in the Productivity and Profitability of Cassava (Manihot Esculenta) in Ika South and Ika North East Local Government Areas of Delta State, Nigeria, World Applied Sciences Journal Vol.24 (12) Pages: 1610-1615

  19. Ogisi, O. Dicta, Begho, T., & Alimeke, B. O. (2013) 7. Productivity and Profitability of Cassava (Manihot esculenta) in Ika South and Ika North East Local Government Areas of Delta State, Nigeria, IOSR Journal of Agriculture and Veterinary Science
    Vol.6 Pages: 52 -56

  20. Ogisi, O. D., Begho, T., & Alimeke, B. O. (2013) 8. Gender Roles in the Productivity and Profitability of Cassava (Manihot Esculenta) in Ika South and Ika North East Local Government Areas of Delta State, Nigeria. , World Applied Sciences Journal
    Vol.24(12) Pages: 1610-1615

  21. Isiorhovoja, R. A., Inoni, O. E., & Ogisi, O. D. (2013) Entrepreneurial Traits and the Distribution of Poultry Farm Entrepreneurs in Delta State, Nigeria , Asian Journal of Agriculture and rural Development
      Vol.3(7) Pages: 488-496

  22. Inoni, E. O., and Ogisi, O. Dicta (2013) Performance Assessment and the Decision to Participate in Small and Micro Agribusiness Enterprises in Delta State, Nigeria. 6(05), 59-72., OIDA International Journal of Sustainable Development
    Vol.6(5) Pages: 59 - 72

  23. Ogisi, O. Dicta and P. O. Emaziye (2013) Analysis of Alternative Banking Methods Among Rural Farming Households in Delta State, Nigeria, Journal of Vocational and Technical Education
    Vol.8 Pages: 23-31

  24. Isiorhovoja, R.A. and O. Dicta Ogisi (2012) Poultry Farmers’ Managerial Competencies and Poultry Farm Output, Nigerian Journal of Farm Management. Vol. 13 No. 2 Sept. 2012
    Vol.13(2) Pages: 12-16

  25. Isiorhovoja, R.A., O.E. Inoni and O. Dicta Ogisi (2012) Entrepreneurial Traits and the Performance of Poultry Farms in Delta State. , Nigerian Journal of Farm Management
    Vol.13(1) Pages: 28 – 35

  26. Ogisi, Oraye Dicta, C.O. Chukwuji & D.C. Okeke (2012) Non-Parametric analysis of resource-use efficiency among irrigated rice farmers in Anambra and Enugu States, Nigeria., International Journal of Agriculture and Development Economics
    Vol.3(2) Pages: 35-41

  27. Ogisi, O.D., Egware, R.A., & Akalusi, E.O. (2012) An Analysis of the Structure, Conduct and Performance of Garri Market in Ethiope-West Local Government Area of Delta State, Nigeria, Agriculture & Forestry, Podgorica. ISSN 0554-5579 (Printed) ISSN 1800-9492 (Online) Vol.58 (3) Pages: 97 - 104

  28. Okeke, C., C.O. Chukwuji & Oraye Dicta Ogisi (2012) Efficiency of Resource- Use by Rice Farmers in Ebonyi State in South Eastern Nigeria. , Asian Journal of Agriculture and Rural Development. 2(2) pp166-171
    Vol.2 (2) Pages: 166 - 171

  29. Okeke, C., C.O. Chukwuji & O. Dicta Ogisi (2012) Data Envelopment Analysis Approach to Resource-Use Efficiency Among Rice Farmers in Anambra State, Nigeria, Global Journal of Science Frontier Research: Agriculture and Biology
    Vol.Vol. 12 issue 5 version 10. (ENG). 5(2) Pages: 37 - 41

  30. Omo-Irabor O. O. and Ogisi O. Dicta (2011) A Multi-Criteria Decision Analysis (MCDA) Approach To Conflict Management Using Stakeholder Participation and Millennium Development Goals (MDGs) Agenda, Journal of Sustainable Development in Africa ISSN: 1520-5509 Clarion University of Pennsylvania, Clarion, Pennsylvania
    Vol.Vol. 13 No.2 Pages:

  31. Ogisi Dicta O., O. K. Okunomo and B. O. Bosah (2007) Effect of growth media on germination and seedling growth of Persea americana (MIU). , Journal of Food, Agriculture and Environment
    Vol.Vol. 5 No.2 Pages: 84-86

  32. Inoni, O.E. C.O. Chukwuji, O. Dicta Ogisi and W. J. Oyaide (2007) Alleviating Rural Poverty: What Role for Small-Holder Livestock Production in Delta State, Nigeria. , Agriculturae Conspectus Scientificus
    Vol.Vol. 72 No.2 Pages: 159 - 164

  33. Ogisi O. Dicta., O. R. Oghotomo, M. E. Tarurhor & O.E. Inoni (2007) Cooperative Societies and the Development of Small-Scale Furniture and Tailoring Enterprises: Evidence from Delta State of Nigeria , Pakistan Journal of Social Sciences, 4(1) 69-77
    Vol.Vol. 4 No. 1 Pages: 69 - 77

  34. Chukwuji C.O. O. Dicta Ogisi (2006) Analysis of Profit Efficiency in Broiler Production in Delta State, Nigeria., European Journal of Scientific Research. ISSN 1450-216X Vol.14 No.2 (2006) pp.252-267
    Vol.14 No. 2 Pages: 252 - 267

  35. Chukwuji C. O. and O.D. Ogisi (2006) A Tobit Analysis of Fertilizer Adoption by smallholder Cassava Farmers in Delta State, Nigeria. Agriculture Journal (14):240-248., Agriculture Journal
    Vol.14 Pages: 240 -248

  36. Inoni, O.E., Ogisi O. Dicta, Chukwuji, C.O. and E. O. Idowu (2006) Agricultural Commodities Export and Foreign Exchange market Deregulation: An Analaysis with Nigerian Data, Asian Economic Review Vol. 48 pp 229-235
    Vol.48 Pages: 229 - 235

  37. Inoni, O.E., Ogisi, O. Dicta and D.G. Omotor (2004) An Empirical Evidence on the Determinants of Aggregate Savings in Nigeria, The Asian Economic Review, 46 (2):224 – 238. Published by The Indian Institute of Economics, Federation House, 11-6-841, Red Hills, Hyderabad - 500004 Telephone: +91 40 2339 3512 Fax: +91 402339 5083.; Vol.46 No. 2 Pages: 224 - 238

  38. Ogisi, Dicta (2002) Agricultural Sector and the Nigeria Economy: An overview, African Journal of Social and Policy Studies. Vol.2 No.1 Pp 126-131
    Vol.2 Pages: 126-131

  39. Inoni O.E. and O. Dicta Ogisi (2001) An Empirical Evidence on the Determinants of Aggregate Savings in Nigeria, African Journal of Business and Economic Research
    Vol.2 Pages: 167-173

  40. Inoni O.E., D.G. Omotor and O. Dicta Ogisi (2001) Energy Supply and the Environment in Developing Countries: An Economic Policy Perspective , African Journal of Business and Economic Research. Vol.2 No. 1 pp 116-122
    Vol.2(1) Pages: 116-122

  41. Ogisi O. Dicta and B. Usigho (2000) Frauds in Commercial Banks: Types, Causes and Prevention , International Knowledge Review. Vol 2 No. 1 September 2000 pp.122-127
    Vol.2 Pages: 122-127

  42. Inoni, O. E., O. Dicta Ogisi and P. Ekokotu (1999) Cost structure and profitability in Fish farming in Delta State of Nigeria, Nigerian Journal of Agricultural Education
    Vol.2(1) Pages: 14 – 20

  43. Inoni, O. E., O. Dicta Ogisi and C. Chukwuji (1998) Impact of Deregulation of the foreign Exchange Market on Cocoa and Rubber Exports in Nigeria , Nigerian Journal of Agricultural Education (NIJAGRED)
    Vol.1 (12) Pages: 166-172

  44. Akatugba, O. Dicta. (1992) Farming System Research in Developing Countries, Bulletin of the International Association of Agricultural Economists (IAAE). May 1992 No.12: Pp.15-17.
    Vol. Pages: 15-17

  45. Akatugba, O. Dicta, M. Upton and T. Rehman (1991) Ordering the multiple objectives of small Farmers in Bendel State, Nigeria , In Issues in Agricultural Development, Sustainability and Cooperation. Margot Bellamy and Bruce Greenshields (eds) IAAE Occasional Paper No.6 Washington D.C
    Vol.No 6 Pages: 372

  46. Owolabi, T. Dicta Akatugba, and J.S. Dittoh (1989) The Performance of public Financial Institution in Financing Small Scale Farmers: The case of Ogun State Agro-Service Corporation, Farm Management Journal No.5 Vol. 1 Pp. 81-93
    Vol.1 (1) Pages: 81-93

  47. Odjuvwuederhie Emmanuel Inoni, ’Oraye Dicta Ogisi, Felix Odemero Achoja. ( 2017) 2. Profitability and Technical Efficiency in Homestead Catfish Production in Delta State, Nigeria. (64) 4 (1449 – 1465), Economics of Agriculture
    Vol.64 (4) Pages: 1449 -1465