Merge regression
concept:
Example:
ols regression
drawing:
merge regression
Need to install the plug-in separately:
Two-part model for merging data
Hurdle model
concept
Example
Use full sample for probit regression
In the above table, if the P value is less than 0.05, the null hypothesis is rejected and heteroscedasticity is considered
Test the normality of the disturbance term:
Reject the null hypothesis of normality (I didn’t understand the above table)
Draw a nuclear density chart:
Tobit model with endogenous variables:
meaning
command
Example
Perform IV Tobit estimation
Now perform the two-step least squares method: