In reference to your query, I would like to direct your attention to a
series of studies undertaken by the Regional Network of Research Centers
in Latin America, sponsored by the Inter-American Development Bank.
One of their main areas of concern has been, precisely, studies on the
distribution of wealth and income in several Latin American countries,
as well as poverty alleviation strategies. Some of these studies have
been coordinated by Samuel Morley, at the IDB. You may want to contact
the Development Policy Research Division at the IDB, at 1300 New York
Ave., N.W., Washington DC 20577, (202) 623-1000. They may also be able
to put you in contact with some research centers in Latin America, that
participate in their Regional Network.
I hope you find this information useful. Sincerely,
Luis Fierro