Displaying 2 results from an estimated 2 matches for "econpapers".
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cnpapers
2013 Apr 25
1
Stochastic Frontier: Finding the optimal scale/scale efficiency by "frontier" package
Hi,
I am trying to find out the scale efficiency and optimal scale of banks
by stochastic frontier analysis given the panel data of bank. I am free to
choose any model of stochastic frontier analysis.
The only approach I know to work with R is to estimate a translog
production function by sfa or other related function in frontier package,
and then use the Ray 1998 formula to find the scale
2017 Jun 13
2
Classification and Regression Tree for Survival Analysis
I am trying to use the CART in a survival analysis. I have three variables of interest (all 3 ordinal - x, y and z, each of them with 5 categories) from which I want to make smaller groups (just an example 1st category from X variable with the 2nd and 3rd categories from the Y category and 2, 3 and 4 categories from the Z category etc) based on their, let's say, association with mortality.
Now