Youth materialism excites adolescents’ unethical consumer beliefs (UCB-dishonesty). We develop a second-stage moderated mediation model, investigate the relationships between materialism and Generation Z teenagers’ consumer ethics (UCB-dishonesty), and treat two self-concept mechanisms (power and self-esteem) as dual mediators and culture as a moderator (China vs. France). We theorize that materialism enhances power (public self) and reduces self-esteem (private self). French adolescents’ sense of power increases UCB more than their Chinese counterparts. Chinese teenagers’ self-esteem reduces UCB more than their French counterparts. (...) We challenge the assumption that the interaction effects between consumers’ self-concepts and UCB are the same across cultures. We offer the following discoveries based on 1,005 (409 Chinese and 596 French) adolescents. First, the measurement model of consumer ethics with four subconstructs is superior to the model with one overall construct. Second, a sense of power and self-esteem mediate the relationships between youth materialism and consumer ethics, creating two positive and negative paths for power and self-esteem, respectively. Third, French adolescents display a higher magnitude and positive intensity between adolescents’ power (public self) and UCB-dishonesty than their Chinese counterparts across all four subconstructs. Chinese teenagers illustrate a lower magnitude but a higher negative intensity between self-esteem and UCB than their French counterparts across three subconstructs, with one exception: Adolescents’ self-esteem has no impact on “no harm, no foul” across cultures. Neither buyers nor sellers experience substantial financial gains or losses. Finally, cultures moderate the second-stage mediation effects. Scholars must enhance adolescents’ self-esteem and curb their power to promote honesty. We offer implications for materialism, consumer ethics, self-concepts, and culture for consumers and retailers. (shrink)

Slight absolute changes in the Shanghai Stock Exchange Index (SHSE) corresponded to the city’s immediate increases in coronary heart disease deaths and stroke deaths. Significant fluctuations in the Shenzhen Stock Exchange Index (SZSE) corresponded to the country’s minor, delayed death rates. Investors deal with money, greed, stock volatility, and risky decision-making. Happy people live longer and better. We ask the following question: Who are the investors with the highest and most sustainable stock happiness, and why? Monetary wisdom asserts: Investors apply (...) their deep-rooted values (avaricious love-of-money aspiration and locus of control, Level 2) as a lens to frame critical concerns in the proximal-immediate (Shanghai Stock Exchange Index changes, Level 1) and the omnibus-distal contexts (domicile: city vs. country, Level 2) to maximize expected utility (portfolio changes, Level 1) and ultimate serenity (stock happiness, Level 1). We collected multilevel data—the longitudinal SHSE and 227 private investors’ daily stock happiness and portfolio changes for 36 consecutive trading days in four regions of China. Investors had an average liquid asset of $76,747.41 and $54,660.85 in stocks. This study is not a “one-shot” game with “nothing at stake.” We classified Shanghai and Beijing as the city and Shenzhen and Chongqing as the country. Our cross-level 3-D visualization reveals that regardless of SHSE volatility, investors with low aspiration, external control, and country domicile enjoy the highest and most sustainable stock happiness with minimum fluctuations. Independently, investors with low aspiration, external control, and country domicile tend to make fewer portfolio changes than their counterparts. Behaviorally, less is more, debunking the myth—risky decisions excite stock happiness. Our longitudinal study expands prospect theory, incorporates attitude toward money, and makes robust contributions to behavioral economics and business ethics. We help investors and ordinary citizens make happy, healthy, and wealthy decisions. Most importantly, the life you save may be your own. (shrink)