本人想在stata 14里面下载，用ssc install tvdiff, replace命令，但是出现checking tvdiff consistency and verifying not already installed...
connection timed out -- see help r(2) for troubleshooting
could not copy http://fmwww.bc.edu/repec/bocode/t/tvdiff.ado
(no action taken)
另外我在http://fmwww.bc.edu/RePEc/bocode/t/里面也确实没有找到tvdiff.ado,不知道大家有什么好办法~多谢多谢