Animals’ health control efficiency in Northwest Portugal: a two-stage DEA approach

Leonardo Costa, Alfons Oude Lansink, Elvira Silva

Research output: Contribution to conferencePaperpeer-review



A two-stage approach is employed to analyze the efficiency of cooperatives responsible for ruminants’ disease control (OPP) at the farm level in Northwest Portugal. In the first stage, Data Envelopment Analysis (DEA) is used to
estimate and decompose input-based overall inefficiency for each OPP. The input-based inefficiency measures are generated using the directional input distance function. In the second stage, the inefficiency estimates are regressed
on environmental and organizational factors in order to explain efficiency differentials. Despite substantial environmental differences, the empirical results indicate that most cooperatives can reduce costs by improving scale
efficiency and pure technical efficiency.
Original languageEnglish
Number of pages16
Publication statusPublished - 2009
Event113th EAAE Seminar: A resilient European food industry and food chain in a challenging world - MAICH - Mediterranean Agronomic Institute of Chania, Chania, Crete, Greece
Duration: 3 Sept 20096 Sept 2009


Conference113th EAAE Seminar
CityChania, Crete
Internet address


  • Input directional distance function
  • Bootstrapping
  • Economic efficiency
  • Animal health services


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