Spoiled for choice:Examining invalid votes of local parliament elections in South Korea (with Hoyong Jung)

Willingness to pay taxes for welfare: Empirical evidence from South Korea 

Myth of Breastfeeding in Japan: Misperceptions of Social Norms and Maternal Pressure (with Yumi Ishikawa, Mao Nakayama, Chihiro Yagi)

A Career Trap or Maternal Love? Misperceived Social Norms about Breastfeeding ( with Chihiro Yagi)

Charity Fraud: An Experimental Study of the Moral Hazard Problem in the Charity Market (with Hiroki Kato)

Social Norms and Diet for Young Women (with Yumi Ishikawa, Mao Nakayama, Ryo Sakamoto, Yanni Shen)

Populism and Redistribution: Revisiting the Robin Hood Effect (with Hoyong Jung, Chihiro Yagi)

IGG game 1(with Raja, Shibly Shahirier, Munby Jonathan)

IGG game 2(with Raja, Shibly Shahirier, Munby Jonathan)

A dynamic analysis of the impact of widening productivity divergence by technological progress on market structure (with Myungjung Kwon, Sanghyuck Cho)

Nursery school (with Huihui Li, Chihiro Yagi)

Cartel (with Isogai, Yagi)

Environment (with wolf, Yagi)

Parents Giving (with Kawamura, Yagi)