What is the relationship between a centrally planned economy as for example Gosplan was trying to run in the USSR, and the presence of these huge market-like but centralized entities like Amazon and Wal-Mart inside a free-market economy? This becomes particularly interesting because Amazon apparently does not have any particular interest in turning a profit.
A central problem faced by Gosplan was the collection of high quality data about supply chains and the estimation of the utility function of consumers. I would say Amazon is in a pretty good position to do both right now.
Another question, somewhat related: At what point does it become profitable for Amazon to lobby for more redistributive taxation? This might sound paradoxical because you would assume that Amazon represents the interests of it's owners, who would probably suffer under such a taxation scheme. But shouldn't there be a point at which giving more disposable income to poor people will boost the overall income of an entity Amazon (since Amazon doesn't sells many flat-screen TVs but not as many mansions or yachts)?