****************wta 双边界****************
clear
set mem 500m
/*检查数据*/
use "F:\WTP-WTA\wta.dta", clear
sort no
sum
list no rcon3 huji
replace huji=1 if huji==6
tabstat gender huji age occupation edu fam inc lyear dis bid1 will1 bid2 will2 bid3 type ,statistics(mean count semean sd skewness kurtosis cv)
des
*******************正态分布检验***************
foreach var1 in gender age edu fam inc lyear dis bid1 bid3 bid2{
histogram `var1'
}
foreach var1 in gender age edu fam inc lyear dis bid1 bid3 bid2{
ladder `var1'
}
/*相关性检验*/
pwcorr gender huji age occupation edu fam inc lyear dis rcon1 rcon2 rcon3 rcon4 rcon5 rcon6 rcon7 bid1 will1 bid2 will2 bid3 type
cor gender bid1 will1 bid2 will2 bid3 type
cor huji bid1 will1 bid2 will2 bid3 type
cor age bid1 will1 bid2 will2 bid3 type
cor occupation bid1 will1 bid2 will2 bid3 type
cor edu bid1 will1 bid2 will2 bid3 type
cor inc bid1 will1 bid2 will2 bid3 type
reg gender huji age occupation edu fam inc lyear dis bid1 will1 bid2 will2 bid3 rcon1-rcon7
outreg using F:wta.doc",replace
reg gender huji age occupation edu bid1 will1 bid2 will2 bid3
outreg using "F:\wta.dta",append
mfx
outreg using "F:WTP-WTA\wta.dta",append
/*异方差检验*/
estat hettest
/*多重共线检验*/
estat vif
/*二元probit估计***做逐步回归******/
biprobit (will1 bid1 gender huji age occupation edu fam inc lyear dis type)(will2 bid2 gender huji age occupation edu fam inc lyear dis type)
outreg using "F:wta.dta",replace
biprobit (will1 bid1 gender huji age occupation edu fam inc lyear dis rcon1 type)(will2 bid2 gender huji age occupation edu fam inc lyear dis rcon1 type)
outreg using "F:wta.dta",append
biprobit (will1 bid1 gender huji age occupation edu fam inc lyear dis rcon1-rcon7 type)(will2 bid2 gender huji age occupation edu fam inc lyear dis rcon1-rcon7 type)
outreg using "F:wta.dta",append
/*边际效应**/
mfx
上述命令中从“reg”开始就不能使用了，限于自己水平原因，也一直找不到问题所在，请高人指点迷津！万分感谢！