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Using data from a national survey conducted in the United States, we examined factors affecting tablet computer users' intention to purchase mobile applications, using an extended model based on the unified theory of acceptance and use of technology. Participants were 316 tablet users, who completed measures of performance expectancy, effort expectancy, social influence, facilitating conditions, perceived enjoyment, perceived mobility, perceived interactivity, and purchase intention. The results suggested that expectations of the effort required and social influence helped to explain tablet computer users' intention to purchase mobile applications. Further, perceived enjoyment and perceived interactivity tended to increase intention to purchase tablet computer applications. These results imply that many tablet users perceive tablet computers as multimedia and entertainment devices.

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This study examined whether South Koreans' philanthropic behaviors were related to the factors of two theoretical frameworks. From the involvement perspective, the study argued that three types of involvement with a telethon may be linked to volunteering and charitable donation behaviors. At the collective level, collective-efficacy may also be related to such behaviors. The study asked 279 South Koreans to respond to a Web survey that used convenience sampling. Results found that after controlling for demographics and past volunteer experiences, cognitive and behavioral involvement and collectiveefficacy were positively related to volunteering behaviors, but affective involvement was not related. Moreover, only behavioral involvement and collective-efficacy were positively related to charitable donation. These results suggest that researchers and practitioners for volunteering resources need to use effective programs and contents for such behaviors in order to enhance involvement and level of collective-efficacy among community members in times of disaster