Opening the technological innovation black box: The case of the electronics industry in Korea. - Kanghwa Choi; Ram Narasimhan; Soo Wook Kim (Eur. J. Oper. Res., 2016)

Multi-Period efficiency and productivity changes in global Automobile: A VRS-VRM and SML productivity index approach. - Kanghwa Choi; Changhee Kim; Hyun Jung Kim (Expert Syst. Appl., 2017)

Divisional advertising efficiency in the consumer car purchase funnel: A network DEA approach. - Kanghwa Choi (J. Oper. Res. Soc., 2020)

Combining bootstrap data envelopment analysis with social networks for rank discrimination and suitable potential benchmarks. - Hee Jay Kang; Changhee Kim; Kanghwa Choi (Eur. J. Oper. Res., 2024)