程序说明+附件来源
1、程序说明
- Enclosed are Stata files to implement threshold regression and testing.<?xml:namespace prefix = "o" ns = "urn:schemas-microsoft-com:office:office" />
- The primary references are
- Hansen, Bruce E. (1996) "Inference when a nuisance parameter is not identified under the null hypothesis," Econometrica.
- Hansen, Bruce E. (2000) "Sample splitting and threshold estimation," Econometrica.
- There are 5 files in this directory:
- thresholdreg.ado
- thresholdtest.ado
- Hansen2000.do
- DurlaufJohnson.dta
- readme.txt
- Put the files thresholdreg.ado and thresholdtest.ado in your STATA working directory.
- ***************************************************************************
- (1) threshololdreg.ado
- Stata command "thresholdreg" computes estimates and confidence intervals for threshold models.
- In Stata, You run it by typing:
- "thresholdreg y x, q(z) h(ind)"
- example: thresholdreg y x1 x2, q(z) h(1)
- The inputs are:
- y = dependent variable
- x = independent variables
- z = threshold variable
- ind = heteroskedasticity indicator
- Set ind=0 to impose homoskedasticity assumption
- Set ind=1 to use White-correction for heteroskedasticity (default if option omitted)
- The program estimates a threshold regression, prints the results to the screen.
- The program also plots a graph of the likelihood ratio process in the threshold, useful for threshold confidence interval construction.
- *******************************************************************************
- (2) thresholdtest.ado
- Stata command "thresholdtest" computes a test for a threshold in linear
- regression allowing for heteroskedasticity.
- In Stata, you run it by typing
- "thresholdtest y x, q(z) trim_per(p) rep(R)"
- The inputs are:
- y = dependent variable
- x = independent variables
- z = threshold variable
- p = percentage of sample to trim from ends, e.g. p = .15 (default value if option omitted)
- R = number of bootstrap, e.g., R=5000 (default value if option omitted)
- **************************************************************************
- (3) Hansen2000.do
- To illustrate we have provided a do file "main.do" which replicates the work reported in
- Hansen, Bruce E. (2000) "Sample splitting and threshold estimation," Econometrica.
- To run, type "do Hansen2000"
- **************************************************************************
- (4) DurlaufJohnson.dta
- This is a data file.
- It is the data used by Hansen (2000) taken from Durlauf and Johnson (1995)
2、STATA程序包下载




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