In the Economist Intelligence Unit - EIU click on Country Commerce to see reports on different countries. These reports contain information on taxes, labor, trade policy, and more.

Take a look at the International Economic Accounts webpage from the Bureau of Economic Analysis (BEA) for information about trade in goods and services.

Also look at Doing Business from the World Bank/International Finance Corporation.

This is a guide that will help you navigate through the different databases offered for country research information: http://guides.library.illinois.edu/c.php?g=453712&p=3107175