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Periodical article Periodical article Leiden University catalogue Leiden University catalogue WorldCat catalogue WorldCat
Title:A review of Nigerian agricultural efficiency literature, 1999-2011: what does one learn from frontier studies?
Authors:Ogundari, K.
Amos, T.T.
Okoruwa, V.O.
Year:2012
Periodical:African Development Review (ISSN 1467-8268)
Volume:24
Issue:1
Pages:93-106
Language:English
Geographic term:Nigeria
Subjects:agriculture
efficiency
2000-2009
External link:https://onlinelibrary.wiley.com/doi/10.1111/j.1467-8268.2011.00307.x/pdf
Abstract:This study provides a critical overview of Nigerian agricultural efficiency literature covering 1999-2011. A total of 156 frontier studies, yielding 210 observations, were used for the review. The preliminary findings from both the Funnel Plot and Funnel Asymmetry Test revealed that publication bias is not a severe problem in the selected literature. The findings via univariate scatter plot and Spearman correlation provided evidence that reported efficiency scores positively correlated with the year of survey in the primary study. However, this observation might be an indication that positive efficiency change in the total factor productivity (TFP) growth characterized the development of the Nigerian agricultural sector over the years. The average efficiency estimate from all the reviewed studies is about 0.71, thus suggesting that there is considerable room for improvement in the sector. To further distil important policy findings from the primary literature, the authors observed that 48 percent of the observations identified education as a significant determinant of efficiency. Likewise, experience was shown to be an important variable by 33 percent, while 23 percent identified age as a key determinant. Also, 19 percent showed that extension and family size are important. Directions for future research are also outlined. App., bibliogr., notes, sum. [Journal abstract]
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