The Doing Business database, a service of the World Bank, provides information on business regulations and their enforcement in 175 economies from around the world.  This includes a Doing Business Map that allows you to click on a particular country to find out how difficult or easy it is to do business there.  The database also has a Law Library section that offers the largest online collection of full-text business laws and regulations from authoritative sources.  The library can be browsed by either country or type of law.