Wang, Hung-JenHung-JenWang2010-06-122018-06-282010-06-122018-06-282002http://ntur.lib.ntu.edu.tw//handle/246246/185579228572 bytesapplication/pdfen-USHeteroscedasticity and Non-Monotonic Efficiency Effects of a Stochastic Frontier Modeljournal articlehttp://ntur.lib.ntu.edu.tw/bitstream/246246/185579/1/11.pdf