Rooftop photovoltaic system is a cheap and abundant energy source that addresses the threat of global warming, and its future success relies on government incentives and marketing strategies designed to improve consumers’ benefit perception. The present study aimed to examine the relationship among personal traits (including environmental concern, an ecological lifestyle, and consumer innovativeness), psychological benefits (including a warm glow and a “nature experience”), attitudes toward rooftop photovoltaic, government incentives, and intentions to install rooftop photovoltaic. Empirical data were collected from one nationwide company in Taiwan, and 300 valid questionnaires were collected. The collected data were analyzed using a structural equation model. The results show that an ecological lifestyle, consumer innovativeness, and warm glow affect rooftop photovoltaic installation intention through the attitude toward rooftop photovoltaic. Moreover, government incentives have the strongest influence on this intention. This study integrates personal traits, psychological benefits, attitudes toward rooftop photovoltaic, government incentives, and intentions to install rooftop photovoltaic in a model from the consumer perception theory perspective; it expands the theory regarding planned behavior in the solar photovoltaic research field. This research also provides suggestions for government policymakers and offers a strong theoretical and practical framework for photovoltaic industry marketers.

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The infrequency of purchase (IP) model was used to explore the impact of financial factors, limiting factors, social status and household life cycle on family travel intention and travel expenditure in Taiwan. The empirical results indicate that family travel intention and level of expenditure vary at different stages of the household life cycle. Additionally, family incomes, the education level of the head of the household, women's employment and home ownership have significantly positive impacts on travel intention and level of expenditure. The findings also suggest that the presence of a family member's health problems or the number of seniors over 65 years of age in a household will reduce travel intention and thus the level of travel expenditure.