The nudge effect of “foresight for the future of our children”: Pregnancy and environmental intertemporal choice
LI Aimei1, WANG Haixia1,SUN Hailong1, XIONG Guanxing1,2, YANG Shaoli1,3
1 Management School, Jinan University, Guangzhou 510632, China;
2 School of Economics and Management, South China Normal University, Guangzhou 510006, China;
3 Accenture China Co., Ltd. Guangzhou Branch, Guangzhou 510898, China
Abstract：Environmental issues are currently of particular concern in the world. Thus, it is important to understand the processes that contribute to prudent long-term choices regarding the environment. To this end, it is important to study environmental intertemporal choice, especially the improvement of foresight in environmental time discounting.
The present research combined questionnaire-based, lab-based and field studies to investigate whether “Foresight for the Future of Our Children” decreased time discounting in environmental intertemporal choice. Study 1 probed the link between pregnancy and environmental intertemporal choice. Study 2 aimed to replicate the results from Study 1 by controlling for the confounding variables of the physiological state of pregnancy in a lab experiment. In Study 3, a priming paradigm was developed to test this hypothesis. Participants were instructed to indicate their degree of support for specific environmental policies after the benefits of the policy were described. The test materials were the same in the experimental and control groups with the exception that an additional phrase was included in the experimental condition: “To leave our children with blue sky, green earth, clear water, and a beautiful home”. Building on Study 3, Study 4 employed a similar nudge-like intervention to investigate the effects of “Foresight for the Future of Our Children” on the extent to which participants support a federal environmental policy and donation incentive for charitable organizations.
Study 1 indicated that pregnancy increased long-term thought in environmental intertemporal choice and decreased the temporal discounting rate through comparisons between pregnant and non-pregnant participants. Moreover, long-term thinking mediated the effect of pregnancy on the discounting rate in environmental intertemporal choice. Study 2 replicated the results of Study 1 regarding the links between the psychological priming of pregnancy and the discount rate in environmental intertemporal choice. The first two studies investigated whether natural pregnancy influenced the time discounting rate in environmental intertemporal choice. Based on these results, Study 3 tested the intervention hypothesis, which suggests that the subtle priming associated with the characteristics of pregnancy would influence the degree of support for long-term environmental policies. The results demonstrated that a simple prime that referred to “Foresight for the Future of Our Children” increased long-term thinking in intertemporal choice. Importantly, we produced similar nudging effects in Study 4 and showed that “Foresight for the Future of Our Children” increased the donation incentive towards a charity that aimed to improve the environment of China.
The results from our four studies provide consistent evidence that “Foresight for the Future of Our Children” decreased myopic behaviour in environmental intertemporal choice. These results are crucial for the design of nudge interventions that improve the long-term interests of both individuals and collectives while persevering the freedom of individual choice. Furthermore, this research also sheds light on the theoretical attributions to underlying intertemporal models and the effects of the physiological state of pregnancy on choice.
李爱梅, 王海侠, 孙海龙, 熊冠星, 杨韶丽. “长计远虑”的助推效应：怀孕与环境跨期决策[J]. 心理学报, 2018, 50(8): 858-867.
LI Aimei, WANG Haixia, SUN Hailong, XIONG Guanxing, YANG Shaoli. The nudge effect of “foresight for the future of our children”: Pregnancy and environmental intertemporal choice. Acta Psychologica Sinica, 2018, 50(8): 858-867.
Anderson, M. V., & Rutherford, M. (2011). Recognition of novel faces after single exposure is enhanced during pregnancy. Evolutionary Psychology, 9(1), 47-60. Chen, J. X., & He, G. B. (2015). Measuring the temporal discounting of environmental outcomes: comparison between matching method and titration procedure. Chinese Journal of Applied Psychology, 21(1), 12-20.
[陈嘉欣, 何贵兵. (2015). 环境结果时间折扣的测量: 匹配法和滴定法的比较. 应用心理学, 21(1), 12-20.] D’Alessio, M., Guarino, A., De Pascalis, V., & Zimbardo, P. G. (2003). Testing Zimbardo’s Stanford time perspective inventory (STPI)-short form. Time & Society, 12(2-3), 333- 347. Delmore-Ko, P., Pancer, S. M., Hunsberger, B., & Pratt, M. (2000). Becoming a parent: The relation between prenatal expectations and postnatal experience. Journal of Family Psychology, 14(4), 625-640. Gjesme, T. (1983). On the concept of future time orientation: Considerations of some functions' and measurements' implications. International Journal of Psychology, 18(1-4), 443-461. Hardisty, D. J., & Weber, E. U. (2009). Discounting future green: Money versus the environment. Journal of Experimental Psychology: General, 138(3), 329-340. Harwood, K., McLean, N., & Durkin, K. (2007). First-time mothers' expectations of parenthood: What happens when optimistic expectations are not matched by later experiences? Developmental Psychology, 43(1), 1-12. Hayes, A. F. (2012). PROCESS: A versatile computational tool for observed variable mediation, moderation, and conditional process modeling (Unpublished doctorial dissertation). University of Kansas, KS. Hoekzema, E., Barba-Müller, E., Pozzobon, C., Picado, M., Lucco, F., García-García, D.,... Crone, E. A. (2017). Pregnancy leads to long-lasting changes in human brain structure. Nature Neuroscience, 20(2), 287-296. Kaplan, H. S., & Gangestad, S. W. (2005). Life history theory and evolutionary psychology. In: D. M. Buss (Ed.), The handbook of evolutionary psychology (pp. 68-95). Hoboken, NJ: Wiley. Kinsley, C. H., & Lambert, K. G. (2006). The maternal brain. Scientific American, 294(1), 72-79. Kinsley, C. H., & Lambert, K. G. (2008). Reproduction- induced neuroplasticity: Natural behavioural and neuronal alterations associated with the production and care of offspring. Journal of Neuroendocrinology, 20(4), 515-525. Laibson, D. (1997). Golden eggs and hyperbolic discounting. The Quarterly Journal of Economics, 112(2), 443-478. Li, A. M, Peng, Y., & Xiong, G. X. (2015). Are pregnant women more foresighted? The effect of pregnancy on intertemporal choice. Acta Psychologica Sinica, 47(11), 1360-1370.
[李爱梅, 彭元, 熊冠星. (2015). 孕妇更长计远虑?——怀孕对女性跨期决策偏好的影响. 心理学报, 47(11), 1360- 1370.] Li, S. (2016). An equate-to-differentiate way of decision- making. Shanghai, China: East China Normal University Press.
[李纾. (2016). 决策心理: 齐当别之道. 上海: 华东师范大学出版社.] Liberman, N., & Trope, Y. (1998). The role of feasibility and desirability considerations in near and distant future decisions: A test of temporal construal theory. Journal of Personality and Social Psychology, 75(1), 5-18. Liberman, N., & Trope, Y. (2008). The psychology of transcending the here and now. Science, 322(5905), 1201- 1205. Nicolaij, S., & Hendrickx, L. (2003). The influence of temporal distance of negative consequences on the evaluation of environmental risks. In: L. Hendrickx, W. Jager, & L. Steg (Eds.), Human decision making and environmental perception: Understanding and assisting human decision making in real-life situations. Groningen: University of Groningen. Numan, M., & Insel, T. R. (2003). Motivational models of the onset and maintenance of maternal behavior and maternal aggression. In: M. Numan & T. R. Insel (Eds.), The neurobiology of parental behavior (pp. 69-106). New York, NY: Springer. Peters, J., & Büchel, C. (2010). Episodic future thinking reduces reward delay discounting through an enhancement of prefrontal-mediotemporal interactions. Neuron, 66(1), 138-148. Seligman, M. E., Railton, P., Baumeister, R. F., & Sripada, C. (2016). Homo prospectus. Oxford: Oxford University Press. Shipp, A. J., Edwards, J. R., & Lambert, L. S. (2009). Conceptualization and measurement of temporal focus: The subjective experience of the past, present, and future. Organizational Behavior and Human Decision Processes, 110(1), 1-22. Strathman, A., Gleicher, F., Boninger, D. S., & Edwards, C. S. (1994). The consideration of future consequences: Weighing immediate and distant outcomes of behavior. Journal of Personality and Social Psychology, 66(4), 742-752. Thaler, R. H., & Sunstein, C. R. (2008). Nudge: Improving decisions about health, wealth, and happiness. New Haven: Yale University Press. Trivers, R. (1972). Parental investment and sexual selection. In B. Campbell (Ed.), Sexual selection and the descent of man, 1871-1971 (pp. 136-179). Cambridge, MA: Harvard University. Trope, Y., & Liberman, N. (2010). Construal-level theory of psychological distance. Psychological review, 117(2), 440-463. Wang, X.-T., & Dvorak, R. D. (2010). Sweet future: Fluctuating blood glucose levels affect future discounting. Psychological Science, 21(2), 183-188. Williams, G. C. (1966). Natural selection, the costs of reproduction, and a refinement of Lack's principle. The American Naturalist, 100(916), 687-690.