 Pricing Organic Nitrogen Under The Weak Disposability Assumption: An Application to the French Pig SectorIsabelle Piot‐Lepetit and Dominique Vermersch Journal of Agricultural Economics, 1998, vol. 49, issue 1, 85-99 Abstract: The nonparametric approach Data Envelopment Analysis is used in order to measure individual technical inefficiency. Different models are evaluated using a 1991 FADN data set of French pig farms. Organic nitrogen is considered as a byproduct of animal breeding. Used as plant nutrient, organic manure becomes an input in crop production which is pollutant when excessive amounts enter surface and groundwater. In the latter case, the usual hypothesis of strong disposability of organic nitrogen is refuted because the elimination of pollution is costly. In this paper, we introduce a hypothesis of weak disposability of organic nitrogen and compare the technical efficiency measures obtained with and without this assumption. Then, using the duality between the restricted cost function and the input‐output distance function and following Färe and Primont (1995), we derive a shadow price of organic nitrogen which can be compared to the unit cost of different existing manure treatments. Date: 1998 Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:bla:jageco:v:49:y:1998:i:1:p:85-99 Ordering information: This journal article can be ordered from Access Statistics for this article Journal of Agricultural Economics is currently edited by David Harvey More articles in Journal of Agricultural Economics from Wiley Blackwell |
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