Dear,

I am trying to use Stata 15.0 to do the stochastic frontier analysis. And I employ a similar equation as follow:

However, as the author said Pi is a vector of input prices, which contains three variables. I feel confused about how to write correct command in this step.

I am looking forward to hearing from you.

Best wishes,

I am trying to use Stata 15.0 to do the stochastic frontier analysis. And I employ a similar equation as follow:

However, as the author said Pi is a vector of input prices, which contains three variables. I feel confused about how to write correct command in this step.

I am looking forward to hearing from you.

Best wishes,

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