You will find comparative data on corruption in Business Source Premier, if you search for the terms “corruption index” and select the Country reports option – the data goes back about 10 years and is provided by a US company, CountryWatch Inc. There is also an independent free website provided by Transparency International, which compiles a Corruption Perceptions Index, also going back about 10 years.
Incidentally, Business Source Premier also provides data from the Political Risk Index, which is compiled by PRS. This includes comparative international information on the risk of terrorist attack.
Helen Riley, Economics Librarian