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EXOGENOUS PRODUCTION SHOCKS AND TECHNICAL EFFICIENCY AMONG TRADITIONAL IVORIEN RICE FARMERS AgEcon
Sherlund, Shane M.; Barrett, Christopher B..
This paper uses a unique panel data set and data envelopment analysis (DEA) to obtain estimates of technical efficiency for 492 traditional rice plots in Côte d'Ivoire. The objective of this paper is to explore the importance of explicitly controlling for exogenous shocks to production in technical efficiency estimation. We show how omission of such variables in highly stochastic production environments can lead to serious inferential errors, with potentially significant policy implications. Conventional DEA estimation of a production frontier, followed by second-stage Tobit estimation of the correlates of plot- level technical efficiency, suggest widespread and substantial inefficiency related to crop fragmentation and seed varieties. However, when...
Tipo: Conference Paper or Presentation Palavras-chave: Africa (Sub-Saharan); Ivory Coast; Production frontiers; Agricultural productivity; Rice.; Crop Production/Industries; Productivity Analysis; O12; Q12; D2.
Ano: 1998 URL: http://purl.umn.edu/20945
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SMALLHOLDER TECHNICAL EFFICIENCY WITH STOCHASTIC EXOGENOUS PRODUCTION CONDITIONS AgEcon
Sherlund, Shane M.; Barrett, Christopher B.; Adesina, Akinwumi A..
There is a large literature on the estimation of frontier production functions, much of it applied to low-income agriculture. However, much of this literature largely ignores nature's role in agricultural production. Because exogenous, natural production conditions (e.g., rainfall, soil quality, pest infestation, plant disease, weed growth) are rarely uniform or symmetrically distributed within a population or a sample thereof, this omission generally leads to downward bias in producers' estimated efficiency and to biased estimates of both the parameters of the production frontier and the correlates of true technical inefficiency. Using panel data from 464 traditional rice plots in Cote d'Ivoire, we show that controlling for stochastic, exogenous,...
Tipo: Working or Discussion Paper Palavras-chave: Production Economics.
Ano: 1998 URL: http://purl.umn.edu/14760
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MACROECONOMIC SHOCKS, HUMAN CAPITAL AND PRODUCTIVE EFFICIENCY: EVIDENCE FROM WEST AFRICAN FARMERS AgEcon
Barrett, Christopher B.; Sherlund, Shane M.; Adesina, Akinwumi A..
Little empirical work has quantified the transitory effects of macroeconomic shocks on farm-level production behavior. We develop a simple analytical model to explain how macroeconomic shocks might temporarily divert managerial attention, thereby affecting farm-level productivity, but perhaps to different degrees and for different durations across production units. We then successfully test hypotheses from that model using panel data bracketing massive currency devaluation in the west African nation of Cote d'Ivoire. We find a transitory increase in mean plot-level technical inefficiency among Ivorien rice producers and considerable variation in the magnitude and persistence of this effect, attributable largely to ex ante complexity of operations, and the...
Tipo: Working or Discussion Paper Palavras-chave: Labor and Human Capital; O1; Q12; Q18.
Ano: 2003 URL: http://purl.umn.edu/14744
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