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37. Kahneman, D., & Tversky, A. (1979). Prospect theory: An analysis of decision and risk. Econometrica, XLVII, 263–291.

38. Mazur, J. E. (1998). Procrastination by pigeons with fixed interval response requirements. Journal of Experimental Analysis of Behavior, 69, 185–197.

39. National Institute of Mental Health Science News Online (2004). Brain’s reward circuitry revealed in procrastinating primates. August 10. Retrieved March 1, 2008, from www.nimh.nih.gov/science-news/2004/brains-reward-circuitry-revealed-in-procrastinating-primates.shtml. Referring to Liu, Z., Richmond, B. J., Saunders, R. C., Steenrod, S., Stubblefield, B. K., Montague, D. M., & Ginns, E. I. (2004). DNA targeting of rhinal cortex D2 receptor protein reversibility blocks learning of cues that predict reward. Proceedings of the National Academy of Sciences of the United States of America, 101[33], 12336–12341.

40. Schouwenburg, H. C., & Groenewould, J. T. (2001). Study motivation under social temptation; Effects of trait procrastination. Personality and Individual Differences, 30, 229–240.

41. Akerlof, G. A. (1991). Procrastination and obedience. American Economic Review, 81[2], 1–19.

42. Ibid.

43. O’Donoghue, T., & Rabin, M. (1999). Doing it now or later. American Economic Review, 89[1], 103–124.

44. Ibid.

45. Ibid.

46. Ibid.

47. Brafman, O., & Brafman, R. (2008). Sway: The irresistible pull of irrational behavior. New York: Doubleday.

48. Schouwenburg, H., Lay, C., Pychyl, T., & Ferrari, J. (2004). Counseling the procrastinator in academic settings. Washington, D.C.: American Psychological Association.

49. Steel, P. (2007), op. cit.

50. Ainslie, G. (1992). Picoeconomics: The strategic interaction of successive motivational states within the person. New York: Cambridge University Press.

51. Bandura, A. (1997). Self-efficacy: The exercise of control. New York: Freeman

52. Steel, P. (2007), op. cit.

53. Eisenberger, R. (1992). Learned industriousness. Psychological Review, 99, 248–267.

54. Dweck, C. (2006). Mindset: The new psychology of success. New York: Ballantine.

55. Steel, P. (2007), op. cit.