Skip navigation

Analysis of the relationship between quality and price of yam in Ghana - second round (NRI report no. 2428)

Analysis of the relationship between quality and price of yam in Ghana - second round (NRI report no. 2428)

Collinson, C., Crentsil, D. and Acheampong, S. (1999) Analysis of the relationship between quality and price of yam in Ghana - second round (NRI report no. 2428). Technical Report. Natural Resources Institute, Chatham, UK.

[img]
Preview
PDF
Doc-0388.pdf - Published Version
Available under License Creative Commons Attribution Non-commercial No Derivatives.

Download (4MB)

Abstract

In 1997, NRI staff and officers from the Ghanaian Ministry of Food and Agriculture conducted two quantitative surveys of yam trading in Techiman market. The aim was to establish the importance of financial losses caused by poor yam quality and to measure the relationships between price and a series of quality defect variables. This report summarises the analysis of data gathered during the second survey. Data was analysed using multiple regression. Of the nine quality variables measured in the market, only "rotting" could be proved to have a significant influence on price. This result should not be interpreted to mean that other quality variables do not have an impact on price, merely that there was insufficient variation in quality for the statistical techniques to prove the existence of other price quality relationships. Moreover, at the time of the survey, these findings suggest that the financial losses caused by quality defects were slight. The report concludes with suggestions for improving the data gathering methodology for future surveys. In particular, it recommends extensive qualitative surveys to establish the incidence of quality defect related financial losses throughout the year. If these surveys indicate high financial losses, the research should attempt to establish the quantitative nature of price quality relationships using biased sampling techniques.

Item Type: Monograph (Technical Report)
Uncontrolled Keywords: yam, quality, price, Ghana, agriculture, loss, post-harvest, price, defects
Subjects: S Agriculture > S Agriculture (General)
Faculty / Department / Research Group: Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Food & Markets Department
Faculty of Engineering & Science
Related URLs:
Last Modified: 02 Sep 2015 15:13
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
URI: http://gala.gre.ac.uk/id/eprint/11937

Actions (login required)

View Item View Item

Downloads

Downloads per month over past year

View more statistics