1. Baumol, W. J. (1967). Macroeconomics of unbalanced growth: The anatomy of urban crisis. American Economic Review,
57(3), 415–426.
2. Bosworth, B. P., Triplett, J. E. (2007). The Early 21st century U.S. productivity expansion is still in service. International Productivity Monitor, 14, 3–19.
3. Brezis, E. S., & Krugman, P. R. (1997). Technology and the life cycle of cities. Journal of Economic Growth,
2, 369–383.
4. Dekle, R. (2002). Industrial concentration and regional growth: Evidence from the prefectures. The Review of Economics and Statistics,
84(2), 310–315.
5. Foster, L., Haltiwanger, J., Krizan, C.J. (2006). Market selection, reallocation, and restructuring in the U.S. Retail Trade Sector in the 1990s. The Review of Economics and Statistics, 88(4), 748–758.