[Factors that affect adult men's decisions to hire a prostitute].

The present study analyzed demographic and psychological factors that affect adult men's decisions to solicit a prostitute. We administered a questionnaire to 1400 randomly sampled men aged 20 to 59, who live in the Tokyo metropolitan area (obtaining 664 valid responses). The results revealed that 14.6 percent of respondents have had the experience of being a client in prostitution at some point over the past four to five years. Men in their 50s, who spent their adolescence before the enforcement of anti-prostitution laws, had high prostitution acceptability. Those in their 20s and 30s, who spent their adolescence in the 1990s when "Enjyo-Kousai" (Japanese amateur prostitution) gained topicality, also showed high rates. These findings are considered to be birth cohort effects. In addition, those men who reported greater sexual drive and desire for intimate contact with others, as well as those who reported fewer attitudes of gender egalitarianism, had higher rates of prostitution solicitation. Finally, those men who reported less emotional family bonds also showed higher rates.

[Construction of a Japanese version of the "Regret and Maximization Scale" in decision making].

This study developed a Japanese version of the "Regret and Maximization Scale" in decision making, which was originally constructed by Schwartz, Ward, Monterosso, Lyubomirsky, White, and Lehman (2002). This scale measures assess the tendency to experience regret, and individual differences in the desire to maximize or to satisfy. In Study 1, the original version of the "Regret and Maximization Scale" was translated into Japanese and administered to 307 Japanese university students responded the scale. Factor analysis did not replicate the finding of Schwartz et al. (2002). In Study 2, we developed new items, and constructed a "Japanese Version of the Regret and Maximization Scale", based on the interpretation of the factor analysis in Study 1. This new version of the scale was administered to 163 Japanese university students. The result of factor analysis and reliability analysis indicated that this "Japanese Version of the Regret and Maximization Scale" had a considerably high Cronbach's alpha and conceptual validity.