Planned versus command economies
Planned economies contrast with command economies. A planned economy is "an economic system in which the government controls and regulates production, distribution, prices, etc." but a command economy, while also having this type of regulation, necessarily has substantial public ownership of industry. Therefore, command economies are planned economies, but not necessarily the reverse.
Most of a command economy is organized in a top-down administrative model by a central authority, where decisions regarding investment and production output requirements are decided upon at the top in the chain of command, with little input from lower levels. Advocates of economic planning have sometimes been staunch critics of these command economies. For example, Leon Trotsky believed that those at the top of the chain of command, regardless of their intellectual capacity, operated without the input and participation of the millions of people who participate in the economy and who understand/respond to local conditions and changes in the economy, and therefore would be unable to effectively coordinate all economic activity.
Although historians have associated planned economies with Marxist-Leninist states and the Soviet economic model, some argue that the Soviet economic model did not actually constitute a planned economy in that a comprehensive and binding plan did not guide production and investment; therefore the further distinction of an administrative command economy emerged as a more accurate designation for the economic system that existed in the former Soviet Union and Eastern bloc, highlighting the role of centralized hierarchical decision-making in the absence of popular control over the economy. The possibility of a digital planned economy was explored in Chile in 1971-1973 with the development of Project Cybersyn and by
Alexander Kharkevich , head of the Department of Technical Physics in Kiev in 1962.
Another key point is that command economies are inherently authoritarian, whereas economic planning in general can be either participatory and democratic or authoritarian. Indicative planning is a form of planning in market economies that directs the economy through incentive-based methods. Economic planning can be practiced in a decentralized manner through different government authorities. For example, in some predominately market-oriented and mixed economies, the state utilizes economic planning in strategic industries such as the aerospace industry. Mixed economies usually employ macroeconomic planning, while micro-economic affairs are left to the market and price system.
Note too the utilization of dirigisme, or government direction of the economy through non-coercive means, as practiced in France and in Great Britain after the Second World War. The Swedish government planned public-housing models in a similar fashion as urban planning in a project called Million Programme, implemented 1965-1974.