Stata frontier result

In Stata frontier result:

sigma_v and sigma_u ………. standart deviation of errors.

/lnsig2v and /lnsig2u ………..parameterized of sigma-v and sigma_u

sigma2 ……………………………estimate of total error variance

lambda ……………………………estimate of ratio of standartdev of  “u” to the standart dev of  “v”.

Bottom of output is a test of null hipotesis … (not yet)

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