How do you find out the amount of money a country has in foreign investments? A good place to start is the CIA World Factbook. If you’ve never used this government publication, it’s a great resource for country information such as the economy, people, geography of a country and much more.
The United Nation Conference on Trade and Development also provides information on foreign investments and other related data. Also try the Bureau of Economic Analysis, which provides global statistics on this topic.
Interested in how these investments are regulated? Try the World Bank’s Investing Across Borders page.