In the Persuasion Game (Settoku-Nattoku Game), participants devise an idea for environmental behaviors and persuade other participants to conduct the idea. In this study, we examined whether the changes in intentions and attitudes of energy-saving behaviors that occurred by participating in the game were prevalent a month after the game. We also examined whether the changes in attitudes and intentions and the long-term effects can be observed when the game is played online. The results showed that behavioral intentions, subjective norms, and perceived behavioral control were higher immediately after the game regardless of whether the game was played face-to-face or online. In the follow-up study, the subjective norms were at the same level as they were immediately after the game while energy-saving behavioral intentions were not different from what they were before the game both face-to-face and online. Perceived behavioral control remained at the same level only for the game played online. In addition, own intentions to converse about energy-saving and the perception of others’ intentions in this regard were higher after the game, while the perception of others’ intentions to converse remained at the same level one month later. The results suggested that by participating in the Persuasion Game which includes interactions with others, one’s perceptions of others may change in the long term regardless of whether the game is played face-to-face or online.

Since the outbreak of COVID-19, the mobility restriction policy has often been implemented in many countries, including China and Europe countries, as one of the non-pharmacological interventions to prevent the spread of the disease. one of the problems in determining the mobility restriction policy is the trade-off between “suppressing economic damage” and “inhibition of infection”. Bodenstein et al. (2020) examine the impact of social distancing policies on the number of infections and the economy by combining a mathematical model of infectious diseases (SIR model) and a macroeconomic model to predict the economic impact by the outbreak of infected persons and the mobility restrictions. In this study, we extend the model of Bodenstein et al. (2020) (a one-region model) to a two-region model and analyze the effects of policies that restrict mobility between the two regions in order to inspect the impact of differences in migration rates between the two regions on the number of infected people and economic damage. Specifically, we analyzed the impact of policies restricting movement between the two regions on the economy and the infection situation by simulation and find a movement restriction rate that considers both the reduction in the economic damage and the number of infected people.