We show that dependence of production on foreign inputs (or non-producible natural resources) can significantly increase the likelihood of indeterminacy. Payment of imported foreign factors of production may act as a semi-fixed cost, amplifying production externalities and returns to scale,...

This paper takes a new look at an old issue: the coal market integration in significant regions: Europe (East and West Russia), Asia (China and Indonesia), Africa (Mozambique and South Africa), America (Colombia), and Australia. Our main contribution is to perform this analysis in the...

Since 1980, there has been a steady increase in earnings inequality alongside rapid technological growth in the U.S. economy. To what extent does technological change explain the observed increase in earnings dispersion? How does it affect the optimal progressivity of the tax system? To answer...