Promoting vaccination is a crucial strategy to end the COVID-19 pandemic; however, individual autonomy should be respected at the same time. This study aimed to discover behavioral economics nudges that can reinforce people’s intention to receive the COVID-19 vaccine without impeding their...

We examined whether the knowledge that your private donation has a large number of potential recipients causes you to give more or less. We found that the people with blood type O are more likely to have donated blood than those with other blood types, by using a Japan's nationally...

We empirically investigated how voluntary helping behavior is influenced by the number of its potential recipients by using a nationwide survey in Japan (N = 1,333) and examining the relationship between blood type and blood donation behavior. It is generally known in Japan that type O blood can...

The main purpose of this paper is to study how individual differences in implicit worldviews regarding categories versus relationships affect altruistic behavior towards parents, children and non-family members, using the survey data of Korea, Japan and the US. Altruism and intergenerational...