1 The average electric furnace cost is $1,750 to $3,500 installed. 2  The typical gas furnace cost is $3,000 to $6,000 installed, although higher efficiency models and/or complex installations could push the cost up to $7,500 to $10,000 or more.
The great characteristic of a centralized economy is that all economic activities are directed or planned by a central authority so that the people are subjected to a hierarchical control. Every man has a superior whom he must obey. The most outstanding examples of the centralized economy are:
A planned economy is the economic system in which decisions regarding production and investment are embodied in a plan formulated by a central authority, usually by a public body such as a government agency. Thus it may be termed a  command economy .