Capitalism, Socialism and 10-Year Returns of Country ETFs [View article]
To have the kind of test Gary is advocating you'd have to have 1/2 the countries start socialism and 1/2 the countries start capitalism and then measure the results from there. I'm not sure what the significance of measuring 10 countries, starting 10 years ago, when they've already had policies that effect their returns prior to the 10 years, is. It's an interesting idea though. His proxy for socialism is tax rate, which isn't terrible. I wrote a similiar article a while back.
Capitalism, Socialism and 10-Year Returns of Country ETFs [View article]