Why Do People Play Games? A Review of Studies on Adoption and Use. - Juho Hamari; Lauri Keronen; Kati Alha (HICSS, 2015)

Why do People Buy Virtual Goods? A Literature Review. - Juho Hamari; Lauri Keronen (HICSS, 2016)

Why do people buy virtual goods: A meta-analysis. - Juho Hamari; Lauri Keronen (Comput. Hum. Behav., 2017)

Why do people play games? A meta-analysis. - Juho Hamari; Lauri Keronen (Int. J. Inf. Manag., 2017)