The paper presents a model where both income and hours of work are allowed to have a
positive e¤ect on individual utility. Increasing returns to specialization and the concavity of the utility function leads some workers to choose lower wages in return for a more interesting job. Such interest in ones’ work means that not all possible gains from specialization are achieved and that the correlation between income and talent (opportunities) is weakened. If
letting workers do many tasks is costly for the …rms, there may be few jobs where the workers can choose to be a generalist.