Measuring Local Economy Efficiency With Two-Stage Bootstrap DEA: Evidence From Municipal Currency in South Korea. - Hee Jay Kang; Changhee Kim; Jiyoon Son (Int. J. Softw. Innov., 2022)

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)