LU, YUNG-HSIANG; CHIU, YUNG-HO; CHIU, CHING-REN; HUNG, … - In: Asia-Pacific Journal of Operational Research (APJOR) 31 (2014) 01, pp. 1450007-1
-listed companies exceeded those of listed firms, indicating that the technological heterogeneity (i.e., the gap) of non …