USSR had chronic shortages in basic consumer goods like toilet paper, steadily fell behind the West in emerging technologies like semiconductors, and eventually

USSR had chronic shortages in basic consumer goods like toilet paper, steadily fell behind the West in emerging technologies like semiconductors, and eventually went bankrupt [1], so I don't think you could describe anything in its centrally planned economy. Japan has many highly mixed neighorhoods, but unlike in the Soviet example, they emerge organically, because zoning restrictions are lax. [1] https://www.nytimes.com/1988/10/28/world/big-soviet-budget-deficits-are-disclosed-by-kremlin-wasteful-subsidies-blamed.html https://www.nytimes.com/1988/10/28/world/big-soviet-budget-d...