參考資料:
1.David DeSteno, Ye Li, Leah Dickens, Jennifer S. Lerner, 2014, "Gratitude: A Tool for Reducing Economic Impatience", Psychological Science, 25(6), pp. 1262-1267
2.Cahit Guven, 2012, “Reversing the question: Does happiness affect consumption and savings behavior?”, Journal of Economic Psychology, 33(4), pp. 701-717
3.Nancy Digdon and Amy Koble, 2011, "Effects of Constructive Worry, Imagery Distraction, and Gratitude Interventions on Sleep Quality: A Pilot Trial", Applied Psychology: Health and Well-Being, 3(2), pp. 193-206