Scott Aaronson constructs an interesting graph on his blog correlating Freedom House's 2008 Freedom of the World Study and the WSJ's 2008 Index of Economic Freedom. He calls his own analysis amateur, because if he were to do analysis like political scientists it would involve reducing each test to Chi squares and analyzing the significance of them, but whatever that is boring. Listen Scott, there's nothing wrong with a simple t-test now and then.
There is a correlation between the two types of freedom, and he notes that:
"Looking at the countries in question, it seems clear that part of this correlation is due to both freedoms being correlated with economic development, i.e. 'having your national shit together.'"