Ability, self-confidence, and search

We explore optimal search for individual improvement when agents start with different confidence in their own ability. The initial self-confidence may be determined by nature or socioeconomic factors. Presuming Bayesian learning, we show that final achievements depend positively on initial confidence. When parents' achievements affect children's self-confidence, a meritocracy, not necessarily founded on ability, may emerge. Social differences may thus stem from - and maintain - unjustifiable opinions about ability differentials.