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    • Examining variations in hospital productivity in the english nhs 

      Castelli, Adriana; Street, Andrew; Verzulli, Rossella; Ward, Padraic (Springer Nature, 2014-02-25)
      Numerous papers have measured hospital efficiency, mainly using a technique known as data envelopment analysis (DEA). A shortcoming of this technique is that the number of outputs for each hospital generally outstrips the ...