Compton, J.A.F., Floyd, S., Magrath, P.A., Addo, S., Gbedevi, S.R., Agbo, B., Bokor, G., Amekupe, S., Motey, Z., Penni, H. and Kumi, S. (1998) Involving grain traders in determining the effect of post-harvest insect damage on the price of maize in African markets. Crop Protection, 17 (6). pp. 483-489. ISSN 0261-2194 (doi:https://doi.org/10.1016/S0261-2194(98)00041-6.)

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Abstract

Quantifying the loss in value of maize associated with insect damage can be difficult where commodities are sold using non-standard measures and where price is determined through bargaining, as in most African markets. This paper describes a methodology developed in Ghana in which panels of experienced maize traders priced prepared maize samples showing different levels of insect damage. The relative price of damaged maize was quite consistent across the markets studied. Of the grain characteristics evaluated, percent damaged and mould-discoloured grains was the most practical and reliable predictor of price. At harvest a 1% increase in damaged grains decreased price on average by 1%, but later more damage was tolerated as maize became more scarce.

Item Type:	Article
Uncontrolled Keywords:	maize, insect damage, Prostephanus truncatus, Ghana, quality-value relationships, economics, traders
Subjects:	S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science > Natural Resources Institute Faculty of Engineering & Science > Natural Resources Institute > Food & Markets Department
Related URLs:	Publisher Organisation
Last Modified:	26 Nov 2019 11:42
URI:	http://gala.gre.ac.uk/id/eprint/10744

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