I am using Simar and Wilson 2007 model with exogenous variables. I have 2 doubts:
(i) 5 out of my 7 exogenous variables are dummy and beforehand I have declared them as factor variables. However the concerned command is not allowing non numeric variables in exogenous category. Please guide.
score
Dear all, I have some issue.
this is my output : https://shrib.com/?v=nc#6OEFTYV.YuxHzQWNYb28
How to explore are beta coefficients significant or not?
This is my code:
rpbust
Hello,
I have the same problem.
I'm implementing Simar and Wilson's (2007) second algorithm, this is my code:
di_env = dea.env.robust (
X = X [empresas,], Y = Y [empresas,], Z = Z [empresas,], modelo = "salida",
RTS = "variable", L1 = 100, L2 = 2000, alfa = 0.05)
And this is the code for results:
rpbust2
Dear all,
the new book by Robin Sickles and Valentin Zelenyuk is a great help here. https://www.cambridge.org/core/books/measurement-of-productivity-and-efficiency/F8851B759C0BFB4840F4603218943E9F#.XMbXtaiwQ8s.twitter
In chapter 10.3.3 they write that "Most studies using SW2007 approach based their inference mainly on checking whether or not the bootstrap-estimated confidence interval (CI) for a coefficient of interest covers zero (or another hypothesized value)."
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