Search found 7 matches

by john anania
Tue Jul 24, 2012 7:29 am
Forum: Econometric Discussions
Topic: time varying coefficient
Replies: 1
Views: 2111

time varying coefficient

I've built a supply/demand model of housing, but find the real interest rate insignificant in the price equation. If a subsample of the regression is dropped, the real interest rate is strongly significant with the right sign. How do I account for a varying coefficient in a two-stage least squares r...
by john anania
Tue Jun 05, 2012 4:28 pm
Forum: Estimation
Topic: Negative chow test statistic
Replies: 6
Views: 7150

Re: Negative chow test statistic

Thanks. If you have the time, could you give me the code to calculate the test statistic.
by john anania
Tue Jun 05, 2012 4:07 pm
Forum: Estimation
Topic: Negative chow test statistic
Replies: 6
Views: 7150

Re: Negative chow test statistic

I'm a novice. Could you elaborate. thanks
by john anania
Tue Jun 05, 2012 3:57 pm
Forum: Estimation
Topic: Negative chow test statistic
Replies: 6
Views: 7150

Re: Negative chow test statistic

How would you test for structural breaks in such a system?
by john anania
Tue Jun 05, 2012 2:18 pm
Forum: Estimation
Topic: Negative chow test statistic
Replies: 6
Views: 7150

Negative chow test statistic

I generate a chow break point test for a system of equations and keep getting some negative values for my test statistic. Can you tell if there is anything wrong with my code: '*********************** Systems of equations estimation and testing********************************************* system hm1...
by john anania
Tue Jun 05, 2012 9:19 am
Forum: Estimation
Topic: system of equations @ssr
Replies: 2
Views: 2927

Re: system of equations @ssr

Thanks for the quick reply.
by john anania
Tue Jun 05, 2012 8:58 am
Forum: Estimation
Topic: system of equations @ssr
Replies: 2
Views: 2927

system of equations @ssr

I'm trying to pull out the sum of squared residuals for each equation in my system, but keep getting an error (code is below) system hm1 hm1.append lhpr = c(1)*lypdk +c(2)*lreal_stock +c(3)*rm5yr+c(4)*break1 hm1.append lresk = c(5)+c(6)*lhpr +c(7)* rprime+c(8)*lwager hm1.append inst lypdk rprime rm5...

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