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From |
"Scott Merryman" <scott.merryman@gmail.com> |

To |
statalist@hsphsun2.harvard.edu |

Subject |
Re: st: Estimating total factor productivity |

Date |
Tue, 8 Jul 2008 12:47:46 -0500 |

On Mon, Jul 7, 2008 at 9:39 AM, dadhinp@yahoo.com <dadhinp@yahoo.com> wrote: > Dear STATA users > I want to estimate TFP. Since I have very small size of time series data set (20 obervation) I am using CD production function with CRS TFP = Total Factor Productivity? CD = Cobb-Douglas? CRS= Constant Returns to Scale? > and perfectly competetive market assumption. But I dont know how to write stata command. Following is the data set. > > Year Ln(K/L) Ln(Y/L) > > 1981 2.1715 8.4583 > 1982 2.1887 8.5757 > 1983 2.2061 8.5374 > 1984 2.2214 8.6244 > 1985 2.2346 8.7500 > 1986 2.2453 8.7886 > 1987 2.2558 8.8013 > 1988 2.2652 8.8624 > 1989 2.2736 8.9083 > 1990 2.2805 8.9494 > 1991 2.2875 9.0049 > 1992 2.2904 9.0085 > 1993 2.2934 8.9990 > 1994 2.2963 9.0333 > 1995 2.2989 9.0199 > 1996 2.3031 9.0336 > 1997 2.3070 9.0385 > 1998 2.3110 9.0307 > 1999 2.3138 9.0327 > 2000 2.3164 9.0534 > > K=capital L=labor Ln=log > I found one paper using the same data set estimated Ln(Y/L)=4.43 +0.46Log(K/L) I doubt it. Log(Y/L) is about 4 times greater than Log(K/L). The above regression would generate predicted values of around 5. > But I get very different result. So could you please to suggest me STATA code to estimate CD function and to find TFP and Change in >TFP. Perhaps this may be of use: http://www.stata.com/statalist/archive/2003-12/msg00581.html Scott * * For searches and help try: * http://www.stata.com/support/faqs/res/findit.html * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Estimating total factor productivity***From:*"dadhinp@yahoo.com" <dadhinp@yahoo.com>

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