Luís A. Nunes Amaral

co-Director, Northwestern Institute on Complex Systems
Professor of Chemical & Biological Engineering
Professor of Physics & Astronomy (by courtesy)
Professor of Medicine (by courtesy)

Chemical & Biological Engineering
2145 Sheridan Road (Room E136)
EvanstonIL 60208US
Phone: (847) 491-7850


The distribution of shocks to GDP growth rates is found to be exponential rather than normal. Their standard deviation scales with GDP(beta) where beta = -0.15 +/- 0.03. These macroeconomic results place restrictions on the microeconomic structure of interactions between agents.