In Commit to Win, Heidi Reeder, PhD, unpacks over forty years of research by psychologists and economists to show that the key to reaching any goal, whether it's to hit the gym more often or to finally quit that dead-end job, isn't motivation, willpower, or determination; it's commitment. Busting the myths most of us believe about commitment, Reeder shows that it all comes down to four variables: Treasures, Troubles, Contributions and Choices. Together, these variables make up a formula that not only measures how committed we are, but also shows which factors we can change.