The freedom to choose is related to happiness only when we're emotionally invested in the outcomes.
Most of us would rather choose among options than have a choice made for us. However, researchers from Cornell University and the University of Chicago reveal that there is frequently no difference between how happy people are as a result of making a choice themselves or having a choice made for them. In the September issue of the Journal of Consumer Research, they argue that our emotions are only swayed by the presence of choice when we feel personally responsible for the outcome.
According to Science blog, the study is among the first to explore how choice relates to the perception of personal responsibility. It's more evidence for the paradox of choice and grist for the behavioral economists.