An agglomeration is territorial-economic combination which:

• arises up on the base of large city (a few cities) and creates the considerable area of urbanization;

• differs the high degree of agglomeration of industries of industry, infrastructure and closeness of population;

• renders decision influence on an economy and social life of surrounding territory;

• shows the high degree of complexity of economy and territorial integration of population.

Territorial'no-proizvodstvennyy complex (TPK) Ї considerable territory, where the group of associate enterprises and organizations is located, constituents single technological chainlet, complex using natural resources and recipient an additional effect due to reduction of transport expenses.

A межотраслевой territorial complex is computer-integrated on territory of a particular branch productions, included simultaneously in the national system of межотраслевых educations and having the single program of development.

An economic district is integral territorial part of national economy of country with the specialization and durable economic intracommunications, basic link in the system of the economic districting of country. On the internal maintenance a term corresponds more flexible concept "region".

Economic areas are groups of large-sized districts, selected on the row of signs (territorial, природно-сырьевому, geographical et cetera).

An aggregate of all economic processes, accomplished in society on the basis of operating in him property relations and organizational forms, is the economic system of this society. Understanding essence of the system, it is possible to understand many conformities to law of economic life of society.

Elements of the economic system. The basic elements of the economic system are:

• socio-economic relations, being based on the patterns of ownership folded in every economic system on economic resources and results of economic activity;

• organizational forms of economic activity;

• economic mechanism, I.e. method of adjusting of economic activity at macroeconomic level;

• concrete economic connections between managing subjects.

In the last one and a half-two century the different types of the economic systems operated in the world: two market system, a market economy prevails in which, is a market economy of free competition (clean capitalism) and modern market economy (modern capitalism) and two unmarket system — traditional and administrative-command. Within the framework of one or another economic system there are the varied models of economic development of separate countries and regions. Will consider the personal touches of basic types of the economic systems.

Market economy with a free competition (clean capitalism). Although this system was folded in XVIII в. and halted the existence at the end of XIX in the first decades of XX в.(in different countries variously), however very much many its elements entered in the modern market system.

The distinguishing features of market economy with a free competition were:

• peculiar on investment resources;

• market mechanism of adjusting of macroeconomic activity, based on a free competition;

• presence of great number of independently operating buyers and salespeople of every product and commodity.