PurposeThis paper employed the self-determination theory (SDT) to examine the synergistic impacts of intrinsic, extrinsic and prosocial motivations in promoting sustained pro-environmental consumption behaviors (PECB). To provide evidence for the study’s theoretical framework, the authors focus on the behavior of reducing single-use plastics.Design/methodology/approachA mall-intercept survey for consumption of single-use plastic products in three big cities of Vietnam (Hanoi, Da Nang and Ho Chi Minh city) was conducted to test the theoretical framework. In total, 468 consumers completed the questionnaires. Data were analyzed with SPSS and AMOS.FindingsIntrinsic and prosocial motivations are found to be significant predictors of sustained PECB. More importantly, beyond the direct effects of intrinsic and prosocial motivations, the authors also found positive interaction effects between intrinsic and extrinsic motivation and between intrinsic and prosocial motivation on encouraging sustained PECB.Originality/valueThis research offers a new insight for encouraging sustained PECB. Different from the extant perspectives which usually deal with initiating PECB, the authors emphasize sustaining the behavior. Moreover, this research examines the interaction effects between intrinsic and extrinsic motivations and between intrinsic and prosocial motivations in sustaining PECB.

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This paper aims to show differences between older men and women in terms of financial sources for their living, as well as to examine determinants associated with perceived financial satisfaction of older men and women in Vietnam. The Chow tests show that urban and rural older people were not different in perceived financial satisfaction, while male and female people clearly were. Two separate logistic regression models for male and female older people were applied to discover determining factors of their perceived financial satisfaction. The findings generally showed that older women usually had lower probability for financial satisfaction than did men. Educational level, living area, and financial factors for both males and females played significant roles in making older people satisfied with their financial situations. The paper also indicates that there was a higher probability of financial satisfaction for those who received financial support from their children. The results also imply that there was no relationship between the work situation of older people and their perceived financial satisfaction, although working in later life could help older people increase their income.

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PurposeMedia information is often considered critical to foster pro-environmental consumption behaviours (PECB). However, empirical evidence was inconsistent about the impact of environmental information exposure on the behaviours. Thus, the study aims to clarify that impact by investigating three different types of environmental information. Moreover, the study posited that consumers who hold different environment-related values may be receptive to and influenced differently by these types of information.Design/methodology/approachSurvey data were collected from 259 Gen-Y consumers in urban areas. The data were analysed for measure reliabilities and validities before hypotheses were tested using ordinary least squares (OLS) regressions.FindingsThe results revealed that the environmental problem-, action- and effectiveness-related information exposure affects pro-environmental personal norms (PNs) which then influence the behaviours. More importantly, the influences of action-related information and effectiveness-related information on PNs were moderated differently by egoistic values held by consumers.Originality/valueThe study contributes to the literature by highlighting the importance of information-value congruence in designing effective media campaigns.