Lee, Jeong-Dong; Baek, Chulwoo; Kim, Ho-Sung; Lee, Jin-Seok - In: Journal of Productivity Analysis 41 (2014) 2, pp. 175-186
, economics and OR (operations research)/MS (management science) groups developed without collaboration until the 1980s; however …, the merger of the two groups began in 1994 with the collaboration of frontier researchers. Now the two groups have merged …