Lucas, Clark, Georgellis, and Diener (2003) researched changes in baseline level of well-being due to changes in marital status, the birth of first child, and the loss of employment. While they found that a negative life event can have a greater impact on a person's psychological state and happiness set point than a positive event, they concluded that people completely adapt, finally returning to their baseline level of well-being, after divorce, losing a spouse, the birth of a child, and for women losing their job. They did not find a return to baseline for marriage or for layoffs in men. This study also illustrated that the amount of adaptation depends on the individual.