Bibliography
Carver, C. S. & Scheier, M. F. (1998). On the self-regulation of behavior. New York: Cambridge University Press.
Diener, E. & Diener, C. (1996). Most people are happy. Psychological Science, 7(3) 181-185.
Hsee, C. K. & Abelson, R. P. (1991). Velocity relation: Satisfaction as a function of the first derivative of outcome over time. Journal of Personality and Social Psychology, 60(3) 341-346.
Keely, L. (2000). Why Isn't Growth Making Us Happier? Working paper posted at: http://www.ssc.wisc.edu/%7Elkeely/