I am frequently baffled by the persistent view of the Left that we need more centralized (government) planning for a better society. The Left believes in more central planning for health care (universal care), more programs for college loans, for oil independence (CAFE), for job creation (tariff walls), etc...
We have some rather large examples of the difference between centralized planning and decentralized markets. We have North Korea and starvation compared with South Korea and a country that joined the wealthiest countries on the planet in twenty years. 
We have China in 1980 versus Taiwan. We had Hong Kong and China 1980. Then we have China shedding some of the central planning in favor of decentralized markets and rapidly catching up (in the industrial parts of the country) with Taiwan and Hong Kong.
The same is true for India. Blossoming with the relaxation of central planning. We have Cuba, poor as ever, hungry people risking their lives to escape a country devastated by unrelenting central planning. Cuba has a small segments of Havana that is converted to prosperity for visiting tourists to see, created a neighborhood island zoned for the free market.
Why is this so hard for Lefties to see?