*! version 0.3 29 Oct 2019
help malmq2

Title

malmq2 -- Malmquist Productivity Index in Stata

Syntax

malmq2 inputvars = outputvars [if] [in]
, [options]

Main
dmu(varname) specifies names of DMUs.

sequential specifies sequential production technology.

window(#) specifies window production technology with # periods.

biennial specifies biennial production technology.

global specifies global production technology.

fgnz specifies decomposing TFP change using Färe, Grosskopf, Norris, and Zhang's (1994) method.

rd specifies decomposing TFP change using Ray and Desli's (1997) method.

ort(string) specifies the oriention. The default is ort(i),
meaning the input oriented productivity index. ort(out) means the output oriented productivity index.

saving(filename[,replace]) specifies that the results be saved in filename.dta.

maxiter(#) specifies the maximum number of iterations, which must be an integer greater than 0. The default value of maxiter is 16000.

tol(real) specifies the convergence-criterion tolerance, which must be greater than 0. The default value of tol is 1e-8.

A panel variable and a time variable must be specified; use xtset.

Description

malmq2 selects the input and output variables in the opened data set and estimate Malmquist Productivity Index using Data Envelopment Analysis(DEA) frontier by options specified.

Examples

. use "https://raw.githubusercontent.com/kerrydu/malmq2/master/exdata.dta"

. xtset dmu year

. malmq2 K L= Y, global

. malmq2 K L= Y, seq ort(o) fgnz

. malmq2 K L= Y, ort(o) rd sav(tfp_result,replace)

Saved Results

Macro:

r(file) the filename stores results of malmq2.

References

Färe, R., Grosskopf, S., Norris, M., & Zhang, Z. (1994). Productivity Growth, Technical Progress, and Efficiency Change in Industrialized Countries. The American Economic Review, 84(1), 66-83.

Ray, S., & Desli, E. (1997). Productivity Growth, Technical Progress, and Efficiency Change in Industrialized Countries: Comment. The American Economic Review, 87(5), 1033-1039.

Pastor, J., Lovell, C. (2005). A global Malmquist productivity index, Economics Letters, 88(2):266-271.

Ji, Y., Lee, C. (2010). Data Envelopment Analysis. Stata Journal 10: 267-280.

Lee, K., Lee,B., Lee, C., Lee, C. (2011). Malmquist Productivity Index using DEA frontier in Stata. Working paper.

Jesús T. Pastor, Mette Asmild, C.A. Knox Lovell (2011). The biennial Malmquist productivity change index, Socio-Economic Planning, 45(1):10-15.

Author

Kerry Du

Xiamen University

Xiamen, China

E-mail: kerrydu@xmu.edu.cn