Supporting Information – An Explanation of Universality in Growth Fluctuations
Lime Brokerage LLC; Santa Fe Institute
Robert L. Axtell
George Mason University - Department of Computational Social Science; George Mason University - Department of Economics; Santa Fe Institute - Economics
J. Doyne Farmer
Institute for New Economic Thinking; Santa Fe Institute
January 31, 2011
Supplementary materials for "The cause of universality in growth fluctuations".
As supplementary materials we provide the following:
In Section 1 we discuss a modification to our model incorporating a constraint over the number of elements. In Section 2 we derive and discuss in detail the logarithmic growth rate distribution arising from our model. In Section 3 we discuss a modification to the model that incorporates correlations in the replication factors of elements belonging to the same group. In Section 4 we describe in more detail the fitting procedures and the data sets used in our empirical investigation. We provide in this section additional analysis supporting our results.
Number of Pages in PDF File: 36
Keywords: firm growth, scaling, mutual fund flows
JEL Classification: C21, D21
Date posted: April 29, 2010 ; Last revised: February 10, 2011