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Economic versus environmental improvement potentials of Danish pig farms
Author(s) -
Asmild Mette,
Hougaard Jens Leth
Publication year - 2006
Publication title -
agricultural economics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.29
H-Index - 82
eISSN - 1574-0862
pISSN - 0169-5150
DOI - 10.1111/j.1574-0862.2006.00150.x
Subject(s) - data envelopment analysis , manure , danish , economics , econometrics , variable (mathematics) , order (exchange) , environmental science , statistics , mathematics , agronomy , mathematical analysis , linguistics , philosophy , finance , biology
This article demonstrates how economic and environmental improvement potentials of Danish pig farms can be estimated using Data envelopment analysis (DEA). To avoid some of the problems associated with the definition of undesirable outputs, environmental variables are included as nutrients applied with manure and nutrients removed with the crops. These environmental variables are combined with a series of economic variables, including the costs of fertilizer. Furthermore, subvector efficiency and a two‐step analysis are used in order to consider economic and environmental (technical) efficiency separately. The empirical results show considerable improvement potentials, especially on the environmental variables. Sensitivity studies validate that these results are robust to possible uncertainties in the measurement of the environmental variables.