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From |
"Nick Cox" <n.j.cox@durham.ac.uk> |

To |
<statalist@hsphsun2.harvard.edu> |

Subject |
st: RE: How can estimate dicount rate for each household in the panel data |

Date |
Tue, 17 Feb 2009 18:35:48 -0000 |

I wouldn't use -nl- to estimate this rate. On the face of it, it is more natural to take logs and then fit a regression in each panel. You can do that using -statsby- to pick up the regression slopes. Then -merge- back to your original dataset. Nick n.j.cox@durham.ac.uk Quang Nguyen I have the following sample data set: Household x y t 1 60 120 7 1 120 100 30 1 100 300 60 1 50 250 900 ... 2 2 2 ... I would like to estimate the discount rate for each household based on the fomular: x = y*exp(-rt), where r is the interest rate. I know that in Stata we can use: nl (x=y*(exp(*-{r}*t) for each household. My questions are: 1. How we can ask State to do the the above estimate for all household at the same time instead of one by one? 2. How can we save the ESTIMATED discount rates as an variable that can be used for latter analysis? For instance, on emay study the relationship between the household's discount rate and the educational level. * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**Follow-Ups**:**Re: st: RE: How can estimate dicount rate for each household in the panel data***From:*Quang Nguyen <quangn@gmail.com>

**References**:**st: How can estimate dicount rate for each household in the panel data***From:*Quang Nguyen <quangn@gmail.com>

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