Temporal Motivational Theory (TMT)

"Temporal Motivational Theory (TMT):
Utility = E x V / Gamma D

Utility is the desirability of getting something done. E is expectancy, or confidence. V is the value of the job, and includes not only its importance but also its unpleasantness. Gamma stands for how prone a person is to delay doing things. And D means delay, or how far away the consequences of doing, or not doing, the task are.

The bigger the top number compared to the bottom, the less likely a task will be put off. So if you expect to do well at a job (E), and it's a pleasant thing to do (V), and you're not prone to being delayed by distractions (Gamma), and it has to be done right away (D), you're not likely to procrastinate."
- TorontoStar