Abstract
Countries with a lower fraction of workers with secondary education have smaller firms. We set up a model of occupational choice where individuals have primary, secondary or tertiary education. A more educated work force raises firm size and productivity. More educated workers earn higher wages, and hence among educated individuals only the more able become entrepreneurs. We find that within the framework of our model, different educational attainments can explain one third of the difference in average firm size between the US and Mexico. While improved educational attainments hence imply an increase in firm size over time, a fall in the price of capital together with capital-skill complementarity acts in the opposite direction, something that can explain a relatively constant average firm size in the US since the late 1970s. Our policy experiments highlight how public employment and the skill bias in public hiring additionally affect firm size and productivity.
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