https://www.stata.com/meeting/mexico13/abstracts/#bookm
Introduction to contingent valuation using Stata
Alejandro López-Feldman
CIDE
Cost-benefit analysis is a key input for the ex-ante evaluation of public projects and policies. An ideal cost-benefit analysis incorporates all the social costs and benefits of a project for all members of a society. One of the big challenges to achieve this is the need to place monetary values on nonmarketed goods and services. The objective of the presentation is to provide the audience with the basic tools to obtain estimates of willingness to pay from a contingent valuation survey using Stata. The use of the user-written commands singleb and doubleb is illustrated.


https://www.stata.com/meeting/mexico13/abstracts/materials/mex13_lopez.pdf

下载
singleb
doubleb

命令看看

非常非常感谢前辈！
我下载讲义和命令看一下，谢谢您！

https://mpra.ub.uni-muenchen.de/41018/
Introduction to contingent valuation using Stata
https://mpra.ub.uni-muenchen.de/41018/2/MPRA_paper_41018.pdf

您好，前辈。
我阅读了你推荐的方法，并进行了案例操作。doubled command直接计算出WTP的估计值。
我想通过极大似然估计命令，得出双边界二分式CVM的常数项和投标值的系数，就像单边界可以得出常数项和投标值系数一样，以便单边届和双边界两种方法的比较。
请问对于双边界二分式CVM，Stata的极大似然估计命令如何书写？
谢谢您！

doubled也应该是极大使然估计把
你可以打开那个命令对应的ado文件
看看那个命令里面是怎么写的