Data, reports and analysis from the Economist Intelligence Unit can be found in EIU Viewpoint.

Economist Intelligence Unit Country Reports Archive is an online archive of EIU's quarterly country reports, from their beginning in 1952 through 1995. 

Historical EIU Country Profiles (publication ceased in 2008) are available in print. Use the library catalog for availability; search for eiu and "country profile".

See also: Where can I find The Economist (current and historical)?