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st: DEA Inefficiencies


From   Laura Di Giorgio <lauradg@uw.edu>
To   "statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu>
Subject   st: DEA Inefficiencies
Date   Mon, 21 Oct 2013 23:02:06 +0000

Dear Statalist,
I am trying to compute DEA inefficiencies for multi-outputs (3)  multi-inputs (7) production function with constant return to scale of hospitals.
dea $inputs = out inp art, rts(crs) ort(in) stage(1) saving (dea_crs)
When I run this command for a small subset of the data, Stata gives me the efficiencies. 
However, when I run the command on the full dataset, Stata never stops and I don't get any result. My panel dataset is composed by 128 hospitals observed for 5 years.

Can you help?

Thanks,
Laura 



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