"Self-Organization of Wealth Distribution in an Economy with Conservative Exchanges."
Relatore: J.R. Iglesias, Instituto de Física, Universidade F
03 Febbraio 2003 ore 16.30
|The Pareto-Levy law suggests that the wealth distribution
in many societies follows a power law. In this work we
simulate a net of economic agents with both probabilistic
and deterministic exchanges and with different geometries
and topologies (regular lattices and Small World lattices).
The distribution of wealth depends on the dimension of the
lattice and on its topology, that is, the type of
geographical distribution (local or global) of exchanges.
As an example, a local exchange model generates an
exponential wealth distribution with a poverty line of 0.4
in a scale from 0 to 1), while the a-geographic global
mean field solution generates a completely different wealth
distribution: an almost linear one. Also, when comparing to
the local case, there is a higher number of rich agents but
also lower poverty line (0.2). In a sense, the local
non globalized) model corresponds to a kind of feudal world,
and the random model to a globalized economy. The objective
of this research is to determine the effect of the topology
of exchanges, and also the effect of taxes and returns on
the wealth distribution. We believe these conclusions may
be of interest in view of the present debate over the goods
and evils of globalization.