EC120 Lecture Notes - Lecture 19: Human Capital, Market Power, Efficiency Wage
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Earnings and discriminaion: variaions in income are explained by labour supply and labour demand. Labour demand relects the marginal producivity of labour. In equilibrium, the wages workers earn, equal the value of their marginal. Factors that afect producivity and wages contribuion to the economy"s producion: compensaing diferenial: a diference in wages that arises to ofset the non-inancial characterisics of diferent jobs. These characterisics can include: unpleasantness, diiculty, safety: human capital: the accumulaion of investments in people, such as educaion and on- the-job training. Human capital afects producivity, and thus labour and wages: the signalling theory of educaion. An alternaive view on educaion: irms use educaion level to sort between high-ability and low-ability workers. Educaion itself has no impact on producivity or skills. However, the diiculty of earning a college degree demonstrates to prospecive employees that college graduates are highly capable. Policy implicaion: increasing general educaional atainment would not afect wages: ability, efort, and chance.