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Risk Analysis in Innovation System: A Case Study of Production of Vitamin A Cassava Variety among Farmers in Oyo State, Nigeria.

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Abstract (2. Language): 
Every innovation is targeted towards adoption - a process which involves several levels of risks. Biofortified vitamin A cassava variety is an innovation targeted not only to solve the yield of farmers but to increase the nutritional intake of Nigerian household. The research specifically seeks to investigate the risks involved in the adoption of vitamin A cassava variety, the risk attitude of cassava farmers, and the factors that affect farmers’ risk attitude to the production of vitamin A cassava. A three-stage random sampling procedure was used to select 240 farmers used for the study. Descriptive statistics, Likert scale, safety first utility approach and ordinary least square regression model were used for the analyses. The study revealed that the risks that are involved in the adoption of the cassava variety include animal invasion, price fluctuation, and poor storage facilities. The majority of the farmers were risk-neutral while only 16% were risk-takers. The study further revealed that the significant determinants of risk attitude among farmers were age, income from other activities and estimated annual income. It is therefore recommended that efforts should be geared toward making adequate vitamin A bio-fortified cassava varieties available to young farmers, grazing reserved should be provided to reduce the risks and efforts should be intensified to reduce price volatility for improved Vitamin A cassava.



Antle, J.M. 1987. Econometric Estimation of Producer’s
Risk Attitudes. Amer. J. Agric. Econ., 69 (3): 509-522.
Ayinde, O. E., (2008). Effect of Socio-Economic Factors
on Risk Behaviour of Farming Households: An
Empirical Evidence of Small Scale Crop Producers in
Kwara State, Nigeria. Agricultural Journal 3 (6): 447-
Ayinde O.E.; Muchie M., Adenuga A.H., Jesudun M.O.,
Olagunju F.I. and Adewumi M.O (2012a); “Food
Security and Emerging Innovations in Oil Palm
Production in Sun State, Nigeria” Pakistan Journal of
Nutrition 11 (11): 1009-1013, 2012.
Ayinde, O.E., Muchie, M. Adewumi, M.O. and Abaniyan,
E.O. (2012b) “Risk Analysis of Gender in Innovation
System: A Case Study of Production of Downy
Mildew Maize Resistant Variety in Kwara State,
Nigeria Obeche Journal 30(1): 459-465, ISSN 0078-
Baumol, W.J. (1963) “An expected Gain-Confidence
Limit Creiterion for Portfolio Selection” Management
Science, 10:174-182.
Bernouli, D. (1738) Exposition of a new theory on the
measurement of risk English translation of the Latin
by L. Somer, Econometrica 22:23-36, 1954.
Binswanger, H. P. (1980) “Attitude toward Risk:
Experimental Measurement in Rural India” American
Journal of Agric. Economics 62(1): 395-407.
Chamber, R. G. (2015) "On Marginal-Risk Behavior "
Amer. J. Agric. Econ., first published online on June
11, 2015 downloaded on October 6, 2015, at
Dadzie, S.K.N., and Acquah, H..(2012) Attitudes Toward
Risk and Coping Responses: The Case of Food Crop
Farmers at Agona Duakwa in Agona East District of
Ghana International Journal of Agriculture and
Forestry 2(2): 29-37 DOI: 10.5923/j.ijaf.20120202.06.
Das, N., and Sarker, D., (2008). Analysis of Risk
behaviour of Households: Evidence from Gender
sensitive JFM programme in West Bengal. Working
Paper No. 01.
per_on_risk_under_forest.pdf Retrieve August 11,
Diagne, A., S. A. Adekambi, F. P. Simtowe And G. Biaou,
(2009) The Impact Of Agricultural Technology
Adoption On Poverty: The Case of Nerica Rice
AYINDE / JAFAG (2017) 34 (3), 263-270
Varieties in Benin. A shorter version of the paper is
being presented as contributed paper at the 27th
Conference of the International Association of
Agricultural Economists. August 16-22, 2009. Beijing,
Dillion, John, L. (1971) “An Expository Review of
Bernoullian Theory in Agriculture: Is Utility
Futility?” Review of Marketing and Agricultural
Economics 39: 3-80.
Dillon, J.L., and Scandizzo, P.L. (1978). Risk Attitudes of
Subsistence Farmers in Northeas Brazil: A Sampling
Approach. Amer. J. Agric. Econ., 60 (3): 425-435. doi:
Drucker, P.F., (1998). The discipline of innovation.
Havard Business. Review Edquist C (Ed) 1997,
system innovation. Technology institution and
organization printer Publisher London UK.
Fackler, P.L., (1991). Modelling interdependencies: And
approach into simulation and elicitation. Am. J. Agric.
Econ., 73: 1091-1098.
FAOSTAT. (2017). FAO Statistics online database.
Available at
Accessed January 26th, 2017.
Giroh, D.Y., Adebayo, E.F. and Jongur, A.A.U. (2013)
Analysis of Labour Productivity and Constraints of
Rubber Latex Exploitation among Smallholder Rubber
Farmers in The Niger Delta Region of Nigeria. Global
Journal of Agricultural Research 1(3):16-26,
December 2013 Published by European Centre for
Research Training and Development UK (www.eajournals.
Hildreth, C. and Knowles, G. J. (1982) Some estimation of
Farmer’s Utility Functions, University of Minnesota
Agricultural Experiment Station Technical Bulletin
Hotz C. and McClafferty C., (2007) “From Harvest to
Health: Challenges for Developing Biofortified Staple
Foods and Determining Their Impact on Micronutrient
Status,” Food and Nutrition Bulletin:
28(2):1776- 1783.
Just, D. R and Lybbert, J. J. (2009): "Risk Averters that
love Risk? Marginal Risk Aversion in Comparison to
a Reference Gamble" Amer. J. Agric. Econ., 91 (3): 12
Lin, W., and Chang, (1978). Specification of Bernoullian
utility function in decision analysis. Agricultural
Economics Research 30:30-36.
Lichtenstain, S., Fisch-off, B. and Philips, L.D (1982)
Calibration of Probabilities: The State of art to 1980.
In D. Kahneman, P. Slovic and A Tversky (eds),
Judgement under uncertainty: Heuristics and Biases.
Cambridge University Press, 306-334.
Lindley D. V (1985) Making Decisions (Second edition).
Lukuyu, B., Okike, I., Duncan, A., Beveridge, M., &
Blümmel, M. (2014). Use of Cassava in Livestock and
Aquaculture Feeding Programs.
Moscardi, E. and de Janvry, A., (1977). Attitudes toward
risk among peasants; An econometric approach.
American Journal of Agricultural. Economics. 59(4):
Morton, D.C., R.S. DeFries, Y.E. Shimabukuro, L.O.
Anderson, E. Arai, F.D.B. Espirito-Santo, R. Freitas
and J. Morisette, (2006). Cropland 15expansion
changes deforestation dynamics in the southern
Brazilian Amazon, Proc. Nat. Acad. Sci. USA, 103:
Nwabu G.; Wilfred M.; and Hezron N. (2006) “Does
Adoption of Improved Maize Varieties Reduce
Poverty? Evidence from Kenya: Poster paper prepared
for presentation at the International Association of
Agricultural Economists Conference, Gold Coast,
Australia, August 12-18, 2006.
Olarinde L.O, Manyong V.M., and Akintola J.O., (2007).
Attitudes towards risk among maize farmers in the dry
savanna zone of Nigeria: some prospective policies for
improving food production: African Journal of
Agricultural Research Vol. 2 (8), 399-408.
Pyle, D. and S. Turnovaky (1970) “Safety First and
Expected Utility Maximization in Man-Standard
Deviation Portfolio Analysis” Rev. of Economics and
Statistics 52: 72-81.
Quiggin, J. (1993). Generalized expected utility theory:
The rank-dependent model. Dordrecht: Kluwer.
Roses, J. and Hennessy, D. A. (2003) "Tests for the Role
of Risk Aversion Input Use " Amer. J. Agric. Econ.,
85(1): 30-43.
Roumasset, J.A., Boussard, J.N., and Singh, I. (1979) Risk,
uncertainty, and agricultural development. Laguna,
Southeast Asia Regional Centre for Graduate Study
and Research in Agriculture.
Roy, A. (1952) “Safety First and the Holding of Assets”
Econometrica 20 (1952): 431-49.
Saha, A.; Shumway, R. and Talpaz, H. (1994) Joint
estimation of risk preference structure and technology
using expo-power utility. American Journal of
Agricultural Economics 76:173-184.
Sayre, R, Beeching, J. R., Cahoon, E. B., Egesi, C.,
Fauquet, C., Fellman J., Fregene M., Gruissem, W.,
Mallowa, S., Manary, M., Maziya-Dixon, B.,
Mbanaso, A., Schachtman, D. P., Siritunga, D.,
Taylor, N., Vanderschuren, H. and P. Zhang (2011):
The BioCassava plus Programme: Biofortification of
Cassava for Sub-Saharan Africa. Annu Rev Plant
Biol. 62:251-72. doi:10.1146/annurev-arplant-
Tumuhimbise, G. A., Namutebi, A., Turyashemererwa, F.,
& Muyonga, J. (2013). Provitamin A Crops:
Acceptability, Bioavailability, Efficacy and
Effectiveness. Food and Nutrition Sciences, 4(April),
Van Lehthe J. (1993) The Use of Proper Scoring Ruler of
Eliciting Subjective Probability Distributions.
DSWO Press, Leiden University Leiden, The
Von Neumann, J. and O. Morgerstern (1947). Theory of
Games and Economic Behaviour, Princeton
University Press Princeton.
Young, D.L. (1979) Risk preferences of agricultural
producers: Their use in extension and research.
American Journal of Agricultural Economics

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