A large literature in behavioral and social sciences has found that human wellbeing follows a U-shape over age. Some theories have assumed that the U-shape is caused by unmet expectations that are felt painfully in midlife but beneficially abandoned and experienced with less regret during old...

I propose two new tests of Falk and Knell's (2004) prediction that individuals' reference income increases with ability. To overcome the difficulty that the reference incomeis not observed in existing large data sets, I extend Falk and Knell's model to establish a link between immigrants'...