Models of economy

Economists spend a lot of time trying to develop models of the working of the economy. The London Business School, like many universities and also the Treasury, has a model of the economy which it has entered into a computer. The reason for this is that much of its work is concerned with forecasting future economic trends so as to aid decision-making by business and government. The London Business School's model can be fed with economic information, such as changes in tax rates, and itΒ  will then predict how the economy will behave. Such predictions are an invaluable aid to business decision-making because, for example, businesses can found out whether people's incomes are likely to rise or not.

The complete economy comprises many millions of economic units. There areΒ  households, as one kind of unit. There are also firms and the departments of both central and local government. These units together decideΒ  the economy's total spending. They also decide its total income and its total level of production of goods and services . But in order toΒ  develop in simple model of the economy we need to ignore the government sector and possibility of transactions between households and foreigners. Suppose we are dealing with anΒ  isolated economy, one which has no government. Let's assume that there are two main sectors in the economy: households and firms. Households supply firms with the factors of production that firms' need to carry on their concerns.

Thus households provide labour services, both skilled and unskilled, in return for the payment of wages. They may also supply land for which they are paid rent. Finally, they might supply the finance, which is essential to the business. If teh finance is in the form of a loan key receive interest payments, but if they have purchased shares in the business they may be entitled to a share of the profits. Most households provide some factor services or services of productive factors,to a public or private business. Anyone at work is providing labour , and if you or someone in your family has bought shares in the privatization programme ( in, for example, British Gas, British Telecom or the water authorities) then they have supllied share capital. Households receive payments for these factor services, that is to say, they earn factor incomes, such as wages, rents and profits.

The other part of our simple model portrays firms supplying households with all the goods and services that they require. In return for these the households pay the firms. These two sets of actions create the model of theΒ  circular flow of money, which is shown in fig.3.

In fact, there are twoΒ  flows. One which is monetary and one comprising goods and services. A flow of factor services from households to firms for which thereΒ  isΒ  anΒ  opposite stream of factor payments and a flow of goods and services, which households pay firms. It is this monetary flow in which we are most interested.

What does the figure suggest? It suggests that there are three ways of measuring the ammount of economic activity in the economy. First, we can measure the value of goods and services produced, second,Β  we can measure the level of factor earnings. These factor earnings, represent the value of factor services supplied. Third, we can measure the value of spending services supplied. Third, we can measure the value of spending on goods and services. Then economists refer to the size of the monetary circular flow as the level of national income.

If we assume that al the goods and services, which are produced are in fact sold and that households spend all their income, then we have arrived at what economists call neutral equilibrium. The level of income, whichΒ  is spentΒ  and received by the two groups will not alter since as one group receivesΒ  it, they spend it with the other.

The fact that the economy is in a neutral equilibrium means simply that the level of national income, and hence the level of economic activity, are stable and unchanging. (An equilibrium is a point of balance in which there is no in-rium it does not mean that everyone who wants a job has one or that the country is important exactly the same value of goods and services as it is exporting.

To aid decision-making-ΠΏΠΎΠΌΠΎΠ³Π°Ρ‚ΡŒ,ΡΠΎΠ΄Π΅ΠΉΡΡ‚Π²ΠΎΠ²Π°Ρ‚ΡŒ Π² принятии Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ

The model can be fed with economic information-Π² модСль ΠΌΠΎΠΆΠ½ΠΎ внСсти ΡΠΊΠΎΠ½ΠΎΠΌΠΈΡ‡Π΅ΡΠΊΡƒΡŽ ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΡŽ

Total income-ΠΎΠ±Ρ‰ΠΈΠΉ,суммарный Π΄ΠΎΡ…ΠΎΠ΄

Total level of production of goods and services-ΠΎΠ±Ρ‰ΠΈΠΉ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ производства

To deal with isolated economy-ΠΈΠΌΠ΅Ρ‚ΡŒ Π΄Π΅Π»ΠΎ с ΠΈΠ·ΠΎΠ»ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ экономикой

To carry on their concerns-ΠΏΡ€ΠΎΠ΄ΠΎΠ»ΠΆΠ°Ρ‚ΡŒ своё Π΄Π΅Π»ΠΎ

To provide labour services-ΠΏΡ€Π΅Π΄ΠΎΡΡ‚Π°Π²Π»ΡΡ‚ΡŒ Ρ€Π°Π±ΠΎΡ‡ΡƒΡŽ силу

To receive interest payments-ΠΏΠΎΠ»ΡƒΡ‡Π°Ρ‚ΡŒ ΠΏΠ»Π°Ρ‚Π΅ΠΆΠΈ Π² Π²ΠΈΠ΄Π΅ ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚ΠΎΠ²

Shares-Π°ΠΊΡ†ΠΈΠΈ

To be untitled to a share of the profits-ΠΈΠΌΠ΅Ρ‚ΡŒ ΠΏΡ€Π°Π²ΠΎ Π½Π° долю Π²Ρ‹Π±ΠΎΡ€Π°

Factor services or services of productive factors-Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹ производства

The water authorities-ΡƒΠΏΡ€Π°Π²Π»Π΅Π½ΠΈΠ΅ Π²ΠΎΠ΄Π½ΠΎΠ³ΠΎ хозяйства

To supply share capital-ΠΏΡ€Π΅Π΄ΠΎΡΡ‚Π°Π²ΠΈΡ‚ΡŒ Π°ΠΊΡ†ΠΈΠΎΠ½Π΅Ρ€Π½Ρ‹ΠΉ ΠΊΠ°ΠΏΠΈΡ‚Π°Π»

Factor incomes-Π΄ΠΎΡ…ΠΎΠ΄ Π½Π° Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹ производства

To portray-ΠΎΡ‚ΠΎΠ±Ρ€Π°ΠΆΠ°Ρ‚ΡŒ

A monetary slow-Π΄Π΅Π½Π΅ΠΆΠ½Ρ‹ΠΉ ΠΏΠΎΡ‚ΠΎΠΊ

An opposite stream-ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΏΠΎΠ»ΠΎΠΆΠ½Ρ‹ΠΉ ΠΏΠΎΡ‚ΠΎΠΊ

Factor payments-Π²Ρ‹ΠΏΠ»Π°Ρ‚Ρ‹(Π΄ΠΎΡ…ΠΎΠ΄)Β  Π½Π°Β Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹ производства

To measure the amount of economic activity-ΠΈΠ·ΠΌΠ΅Ρ€ΡΡ‚ΡŒ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ экономичСской активности

The value of goods and services produced-ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ ΠΏΡ€ΠΎΠΈΠ·Π²Π΅Π΄Π΅Π½Π½Ρ‹Ρ… Ρ‚ΠΎΠ²Π°Ρ€ΠΎΠ²

The level of factor earnings-ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ Π΄ΠΎΡ…ΠΎΠ΄ΠΎΠ² Π½Π° Ρ„Π°ΠΊΡ‚ΠΎΡ€Ρ‹ производства

The value of factor services supplied-ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ прСдоставлСнных Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ² производства

The value of spending on goods and services-Ρ€Π°Π·ΠΌΠ΅Ρ€ Π΄ΠΎΡ…ΠΎΠ΄ΠΎΠ² Π½Π° Ρ‚ΠΎΠ²Π°Ρ€Ρ‹ ΠΈ услуги

A neutral equilibrium-ΠΎΠ±Ρ‰Π΅Π΅ равновСсиС

The circular flow of income-ΠΊΡ€ΡƒΠ³ΠΎΠ²ΠΎΠΉ ΠΏΠΎΡ‚ΠΎΠΊ(ΠΊΡ€ΡƒΠ³ΠΎΠ²ΠΎΡ€ΠΎΡ‚) Π΄ΠΎΡ…ΠΎΠ΄ΠΎΠ²

An inherent tendency to change-внутрСнняя тСндСнция ΠΊ измСнСнию 
Β 
Β 
Β 
Β 
Β 
Β 

Экономисты  проводят ΠΌΠ½ΠΎΠ³ΠΎΒ Π²Ρ€Π΅ΠΌΠ΅Π½ΠΈ, ΠΏΡ‹Ρ‚Π°ΡΡΡŒΒ  Ρ€Π°Π·Ρ€Π°Π±ΠΎΡ‚Π°Ρ‚ΡŒΒ ΠΌΠΎΠ΄Π΅Π»ΠΈ Ρ€Π°Π±ΠΎΡ‡Π΅Π³ΠΎ экономики. Лондонская школа бизнСса, ΠΊΠ°ΠΊ ΠΈ ΠΌΠ½ΠΎΠ³ΠΈΠ΅ унивСрситСты, Π° Ρ‚Π°ΠΊΠΆΠ΅ казначСйство, ΠΈΠΌΠ΅Π΅Ρ‚ модСль экономики, которая ΠΎΠ½Π° вступила Π² ΠΊΠΎΠΌΠΏΡŒΡŽΡ‚Π΅Ρ€.ΠŸΡ€ΠΈΡ‡ΠΈΠ½ΠΎΠΉ этого являСтся Ρ‚ΠΎ, Ρ‡Ρ‚ΠΎ Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»ΡŒΠ½Π°Ρ Ρ‡Π°ΡΡ‚ΡŒ Π΅Π΅ Ρ€Π°Π±ΠΎΡ‚Ρ‹ связана с прогнозирования Π±ΡƒΠ΄ΡƒΡ‰ΠΈΡ… экономичСских Ρ‚Π΅Π½Π΄Π΅Π½Ρ†ΠΈΠΉ, Ρ‚Π°ΠΊ ΠΊΠ°ΠΊ для ΠΎΠΏΠ΅Ρ€Π°Ρ‚ΠΈΠ²Π½ΠΎΠ³ΠΎ принятия Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ бизнСсом ΠΈ государством. МодСль Лондонской бизнСс-ΡˆΠΊΠΎΠ»Ρ‹ ΠΌΠΎΠΆΠ½ΠΎ ΠΏΠΎΠ΄Π°Π²Π°Ρ‚ΡŒ с экономичСской ΠΈΠ½Ρ„ΠΎΡ€ΠΌΠ°Ρ†ΠΈΠΈ, Ρ‚Π°ΠΊΠΈΠ΅ ΠΊΠ°ΠΊ измСнСния Π² Π½Π°Π»ΠΎΠ³ΠΎΠ²Ρ‹Ρ… ставках, ΠΈ это Π±ΡƒΠ΄Π΅Ρ‚ Ρ‚ΠΎ ΠΏΡ€Π΅Π΄ΡΠΊΠ°Π·Π°Ρ‚ΡŒ, ΠΊΠ°ΠΊ экономика Π±ΡƒΠ΄Π΅Ρ‚ сСбя вСсти.Β Π’Π°ΠΊΠΈΠ΅ ΠΏΡ€ΠΎΠ³Π½ΠΎΠ·Ρ‹ Π½Π΅ΠΎΡ†Π΅Π½ΠΈΠΌΡƒΡŽ ΠΏΠΎΠΌΠΎΡ‰ΡŒ бизнСс-Ρ€Π΅ΡˆΠ΅Π½ΠΈΠΉ, ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ, Π½Π°ΠΏΡ€ΠΈΠΌΠ΅Ρ€, ΠΊΠΎΠΌΠΏΠ°Π½ΠΈΠΈ ΠΌΠΎΠ³ΡƒΡ‚ ΡƒΡΡ‚Π°Π½ΠΎΠ²ΠΈΡ‚ΡŒ ΠΏΡ€ΠΈΠ½Π°Π΄Π»Π΅ΠΆΠ½ΠΎΡΡ‚ΡŒ Π΄ΠΎΡ…ΠΎΠ΄Ρ‹ насСлСния Π±ΡƒΠ΄ΡƒΡ‚ расти ΠΈΠ»ΠΈ Π½Π΅Ρ‚.Β 
ΠŸΠΎΠ»Π½Ρ‹ΠΉ экономики Π²ΠΊΠ»ΡŽΡ‡Π°Π΅Ρ‚ Π² сСбя ΠΌΠ½ΠΎΠ³ΠΈΠ΅ ΠΌΠΈΠ»Π»ΠΈΠΎΠ½Ρ‹ Ρ…ΠΎΠ·ΡΠΉΡΡ‚Π²ΡƒΡŽΡ‰ΠΈΡ… ΡΡƒΠ±ΡŠΠ΅ΠΊΡ‚ΠΎΠ².Β Π•ΡΡ‚ΡŒ домашниС хозяйства, Π° ΠΎΠ΄ΠΈΠ½ Π²ΠΈΠ΄ устройства.Β Π•ΡΡ‚ΡŒ Ρ‚Π°ΠΊΠΆΠ΅ Ρ„ΠΈΡ€ΠΌΡ‹ ΠΈ вСдомства Π΄Π²ΡƒΡ… Ρ†Π΅Π½Ρ‚Ρ€Π°Π»ΡŒΠ½Ρ‹Ρ… ΠΈ мСстных ΠΎΡ€Π³Π°Π½ΠΎΠ² власти.Β Π­Ρ‚ΠΈ подраздСлСния совмСстно Ρ€Π΅ΡˆΠ°Ρ‚ΡŒ ΠΎΠ±Ρ‰ΠΈΠ΅ расходы экономики.Β ΠšΡ€ΠΎΠΌΠ΅ Ρ‚ΠΎΠ³ΠΎ, ΠΎΠ½ΠΈ Ρ€Π΅ΡˆΠΈΠ»ΠΈ Π΅Π΅ ΠΎΠ±Ρ‰Π΅Π³ΠΎ Π΄ΠΎΡ…ΠΎΠ΄Π° ΠΈ Π΅Π³ΠΎ ΠΎΠ±Ρ‰ΠΈΠΉ объСм производства Ρ‚ΠΎΠ²Π°Ρ€ΠΎΠ² ΠΈ услуг.Но для Ρ‚ΠΎΠ³ΠΎ Ρ‡Ρ‚ΠΎΠ±Ρ‹ Ρ€Π°Π·Π²ΠΈΠ²Π°Ρ‚ΡŒΡΡ Π² простой ΠΌΠΎΠ΄Π΅Π»ΠΈ экономики ΠΌΡ‹ Π΄ΠΎΠ»ΠΆΠ½Ρ‹ ΠΈΠ³Π½ΠΎΡ€ΠΈΡ€ΠΎΠ²Π°Ρ‚ΡŒ сСктор государствСнного управлСния ΠΈ Π²ΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡ‚ΡŒ сдСлок ΠΌΠ΅ΠΆΠ΄Ρƒ домашними хозяйствами ΠΈ иностранцСв.Β ΠŸΡ€Π΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠΈΠΌ, Ρ‡Ρ‚ΠΎ ΠΌΡ‹ ΠΈΠΌΠ΅Π΅ΠΌ Π΄Π΅Π»ΠΎ с ΠΈΠ·ΠΎΠ»ΠΈΡ€ΠΎΠ²Π°Π½Π½ΠΎΠΉ экономики, которая Π½Π΅ ΠΈΠΌΠ΅Π΅Ρ‚ власти.Β Π”Π°Π²Π°ΠΉΡ‚Π΅ ΠΏΡ€Π΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠΈΠΌ, Ρ‡Ρ‚ΠΎ Π‘ΡƒΡ‰Π΅ΡΡ‚Π²ΡƒΡŽΡ‚ Π΄Π²Π° основных сСкторов экономики: домашниС хозяйства ΠΈ Ρ„ΠΈΡ€ΠΌΡ‹. Домохозяйства питания Ρ„ΠΈΡ€ΠΌΡ‹ с Ρ„Π°ΠΊΡ‚ΠΎΡ€Π°ΠΌΠΈ производства, Ρ‡Ρ‚ΠΎ Ρ„ΠΈΡ€ΠΌΡ‹ Π΄ΠΎΠ»ΠΆΠ½Ρ‹ нСсти Π½Π° своих ΠΏΡ€ΠΎΠ±Π»Π΅ΠΌΠ°Ρ….Β 
Π’Π°ΠΊΠΈΠΌ ΠΎΠ±Ρ€Π°Π·ΠΎΠΌ домохозяйств ΠΎΠ±Π΅ΡΠΏΠ΅Ρ‡ΠΈΠ²Π°ΡŽΡ‚ Ρ‚Ρ€ΡƒΠ΄ΠΎΠ²Ρ‹Ρ… услуг, ΠΊΠ²Π°Π»ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ… ΠΈ Π½Π΅ΠΊΠ²Π°Π»ΠΈΡ„ΠΈΡ†ΠΈΡ€ΠΎΠ²Π°Π½Π½Ρ‹Ρ…, Π² ΠΎΠ±ΠΌΠ΅Π½ Π½Π° Π²Ρ‹ΠΏΠ»Π°Ρ‚Ρƒ Π·Π°Ρ€Π°Π±ΠΎΡ‚Π½ΠΎΠΉ ΠΏΠ»Π°Ρ‚Ρ‹. Они ΠΌΠΎΠ³ΡƒΡ‚ Ρ‚Π°ΠΊΠΆΠ΅ ΠΏΠΎΡΡ‚Π°Π²Π»ΡΡ‚ΡŒ Π·Π΅ΠΌΠ»ΠΈ, Π·Π° ΠΊΠΎΡ‚ΠΎΡ€ΡƒΡŽ ΠΈΠΌ платят Π°Ρ€Π΅Π½Π΄Π½ΡƒΡŽ ΠΏΠ»Π°Ρ‚Ρƒ. НаконСц, ΠΎΠ½ΠΈ ΠΌΠΎΠ³Π»ΠΈ Π±Ρ‹ ΠΏΠΎΡΡ‚Π°Π²Π»ΡΡ‚ΡŒ финансов, ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠ΅ ΠΈΠΌΠ΅Π΅Ρ‚ Π²Π°ΠΆΠ½ΠΎΠ΅ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ для бизнСса. Если финансированиС Π² Π²ΠΈΠ΄Π΅ ΠΊΡ€Π΅Π΄ΠΈΡ‚Π° ΠΊΠ»ΡŽΡ‡Π΅Π²Ρ‹Ρ… ΠΏΠΎΠ»ΡƒΡ‡Π°Ρ‚ΡŒ ΠΏΡ€ΠΎΡ†Π΅Π½Ρ‚Π½Ρ‹Π΅ ΠΏΠ»Π°Ρ‚Π΅ΠΆΠΈ, Π½ΠΎ Ссли ΠΎΠ½ΠΈ ΠΏΡ€ΠΈΠΎΠ±Ρ€Π΅Π»ΠΈ Π°ΠΊΡ†ΠΈΠΈ Π² бизнСсС, ΠΎΠ½ΠΈ ΠΌΠΎΠ³ΡƒΡ‚ ΠΈΠΌΠ΅Ρ‚ΡŒ ΠΏΡ€Π°Π²ΠΎ Π½Π° долю ΠΏΡ€ΠΈΠ±Ρ‹Π»ΠΈ.Β Π‘ΠΎΠ»ΡŒΡˆΠΈΠ½ΡΡ‚Π²ΠΎ Π΄ΠΎΠΌΠ°ΡˆΠ½ΠΈΡ… хозяйств ΠΎΠ±Π΅ΡΠΏΠ΅Ρ‡ΠΈΠ²Π°ΡŽΡ‚ Π½Π΅ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ Ρ„Π°ΠΊΡ‚ΠΎΡ€ услуги ΠΈΠ»ΠΈ услуги Ρ„Π°ΠΊΡ‚ΠΎΡ€ΠΎΠ² производства, Π² государствСнном ΠΈΠ»ΠΈ частном бизнСсС.Β Π›ΡŽΠ±ΠΎΠΉ Π½Π° Ρ€Π°Π±ΠΎΡ‚Π΅ являСтся прСдоставлСниС Ρ‚Ρ€ΡƒΠ΄Π°, ΠΈ Ссли Π²Ρ‹ ΠΈΠ»ΠΈ ΠΊΡ‚ΠΎ-Ρ‚ΠΎ Π² вашСй сСмьС Π΅ΡΡ‚ΡŒ ΠΊΡƒΠΏΠΈΠ» Π°ΠΊΡ†ΠΈΠΈ Π² ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΌΡƒ ΠΏΡ€ΠΈΠ²Π°Ρ‚ΠΈΠ·Π°Ρ†ΠΈΠΈ (Π², Π½Π°ΠΏΡ€ΠΈΠΌΠ΅Ρ€, British Gas, British Telecom, ΠΈΠ»ΠΈ водохозяйствСнных ΠΎΡ€Π³Π°Π½ΠΎΠ²), Ρ‚ΠΎ ΠΎΠ½ΠΈ поставили уставного ΠΊΠ°ΠΏΠΈΡ‚Π°Π»Π°.Β Π”ΠΎΠΌΠ°ΡˆΠ½ΠΈΠ΅ хозяйства ΠΏΠΎΠ»ΡƒΡ‡Π°ΡŽΡ‚ ΠΏΠ»Π°Ρ‚Π΅ΠΆΠΈ Π·Π° эти услуги Ρ„Π°ΠΊΡ‚ΠΎΡ€Π°, Ρ‚ΠΎ Π΅ΡΡ‚ΡŒ, ΠΎΠ½ΠΈ Π·Π°Ρ€Π°Π±Π°Ρ‚Ρ‹Π²Π°ΡŽΡ‚ Ρ„Π°ΠΊΡ‚ΠΎΡ€ Π΄ΠΎΡ…ΠΎΠ΄ΠΎΠ², Ρ‚Π°ΠΊΠΈΡ… ΠΊΠ°ΠΊ заработная ΠΏΠ»Π°Ρ‚Π°, арСндная ΠΏΠ»Π°Ρ‚Π° ΠΈ ΠΏΡ€ΠΈΠ±Ρ‹Π»ΡŒ.Β 
Другая Ρ‡Π°ΡΡ‚ΡŒ нашСй простой ΠΌΠΎΠ΄Π΅Π»ΠΈ ΠΈΠ·ΠΎΠ±Ρ€Π°ΠΆΠ°Π΅Ρ‚ Ρ„ΠΈΡ€ΠΌ, ΠΏΠΎΡΡ‚Π°Π²Π»ΡΡŽΡ‰ΠΈΡ… домохозяйств со всСми Ρ‚ΠΎΠ²Π°Ρ€Π°ΠΌΠΈ ΠΈ услугами, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ ΠΎΠ½ΠΈ Ρ‚Ρ€Π΅Π±ΡƒΡŽΡ‚.Β Π’ ΠΎΠ±ΠΌΠ΅Π½ Π½Π° эти домохозяйства платят Ρ„ΠΈΡ€ΠΌΡ‹.Β Π­Ρ‚ΠΈ Π΄Π²Π° Π½Π°Π±ΠΎΡ€Π° дСйствий ΡΠΎΠ·Π΄Π°Ρ‚ΡŒ модСль ΠΊΡ€ΡƒΠ³ΠΎΠ²ΠΎΠΉ ΠΏΠΎΡ‚ΠΎΠΊ Π΄Π΅Π½Π΅Π³, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹ΠΉ ΠΏΠΎΠΊΠ°Π·Π°Π½ Π½Π° рис.3.Β 
Π’ самом Π΄Π΅Π»Π΅, Π•ΡΡ‚ΡŒ Π΄Π²Π° ΠΏΠΎΡ‚ΠΎΠΊΠ°. Один ΠΈΠ· Π½ΠΈΡ… являСтся Π΄Π΅Π½Π΅ΠΆΠ½ΠΎ-крСдитная ΠΈ ΠΈΠ· ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… содСрТит Ρ‚ΠΎΠ²Π°Ρ€ΠΎΠ² ΠΈ услуг.Β ΠŸΠΎΡ‚ΠΎΠΊ Ρ„Π°ΠΊΡ‚ΠΎΡ€ услуги ΠΎΡ‚ насСлСния ΠΊ Ρ„ΠΈΡ€ΠΌΠ°ΠΌ, для ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… сущСствуСт ΠΏΡ€ΠΎΡ‚ΠΈΠ²ΠΎΠΏΠΎΠ»ΠΎΠΆΠ½Ρ‹ΠΉ ΠΏΠΎΡ‚ΠΎΠΊ Ρ„Π°ΠΊΡ‚ΠΎΡ€ ΠΏΠ»Π°Ρ‚Π΅ΠΆΠ΅ΠΉ ΠΈ ΠΏΠΎΡ‚ΠΎΠΊΠ° Ρ‚ΠΎΠ²Π°Ρ€ΠΎΠ² ΠΈ услуг, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ домохозяйства платят Ρ„ΠΈΡ€ΠΌΡ‹. ИмСнно этот Π΄Π΅Π½Π΅ΠΆΠ½Ρ‹ΠΉ ΠΏΠΎΡ‚ΠΎΠΊ, Π² ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Ρ… ΠΌΡ‹ Π±ΠΎΠ»Π΅Π΅ всСго заинтСрСсованы.Β 
Π§Ρ‚ΠΎ ΠΎΠ·Π½Π°Ρ‡Π°Π΅Ρ‚ Ρ†ΠΈΡ„Ρ€Π° ΠΏΡ€Π΅Π΄Π»Π°Π³Π°Π΅Ρ‚Π΅? Она ΠΏΡ€Π΅Π΄ΠΏΠΎΠ»Π°Π³Π°Π΅Ρ‚, Ρ‡Ρ‚ΠΎ Π•ΡΡ‚ΡŒ Ρ‚Ρ€ΠΈ способа измСрСния количСства экономичСской активности Π² экономикС.Β Π’ΠΎ-ΠΏΠ΅Ρ€Π²Ρ‹Ρ…, ΠΌΡ‹ ΠΌΠΎΠΆΠ΅ΠΌ ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΡ‚ΡŒ ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ Ρ‚ΠΎΠ²Π°Ρ€ΠΎΠ² ΠΈ услуг, ΠΏΡ€ΠΎΠΈΠ·Π²ΠΎΠ΄ΠΈΠΌΡ‹Ρ…, Π²ΠΎ-Π²Ρ‚ΠΎΡ€Ρ‹Ρ…, ΠΌΡ‹ ΠΌΠΎΠΆΠ΅ΠΌ ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΡ‚ΡŒ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ Ρ„Π°ΠΊΡ‚ΠΎΡ€Π° Π·Π°Ρ€Π°Π±ΠΎΡ‚ΠΊΠΎΠ².Β Π­Ρ‚ΠΈ Ρ„Π°ΠΊΡ‚ΠΎΡ€ ΠΏΡ€ΠΈΠ±Ρ‹Π»ΠΈ, ΠΏΡ€Π΅Π΄ΡΡ‚Π°Π²Π»ΡΡŽΡ‚ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ коэффициСнта прСдоставляСмых услуг.Β Π’-Ρ‚Ρ€Π΅Ρ‚ΡŒΠΈΡ…, ΠΌΡ‹ ΠΌΠΎΠΆΠ΅ΠΌ ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΡ‚ΡŒ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ расходов прСдоставляСмых услуг.Β Π’-Ρ‚Ρ€Π΅Ρ‚ΡŒΠΈΡ…, ΠΌΡ‹ ΠΌΠΎΠΆΠ΅ΠΌ ΠΈΠ·ΠΌΠ΅Ρ€ΠΈΡ‚ΡŒ Π·Π½Π°Ρ‡Π΅Π½ΠΈΠ΅ расходов Π½Π° Ρ‚ΠΎΠ²Π°Ρ€Ρ‹ ΠΈ услуги.Β Π—Π°Ρ‚Π΅ΠΌ экономисты Π½Π°Π·Ρ‹Π²Π°ΡŽΡ‚ Ρ€Π°Π·ΠΌΠ΅Ρ€ Π΄Π΅Π½Π΅ΠΆΠ½ΠΎΠΉ ΠΊΡ€ΡƒΠ³ΠΎΠ²ΠΎΠΉ ΠΏΠΎΡ‚ΠΎΠΊ, ΠΊΠ°ΠΊ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ Π½Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π΄ΠΎΡ…ΠΎΠ΄Π°.Β 
 Если ΠΌΡ‹ ΠΏΡ€Π΅Π΄ΠΏΠΎΠ»ΠΎΠΆΠΈΠΌ, Ρ‡Ρ‚ΠΎ всС Ρ‚ΠΎΠ²Π°Ρ€Ρ‹ ΠΈ услуги, ΠΊΠΎΡ‚ΠΎΡ€Ρ‹Π΅ производятся Π½Π° самом Π΄Π΅Π»Π΅ ΠΏΡ€ΠΎΠ΄Π°ΡŽΡ‚ΡΡ ΠΈ, Ρ‡Ρ‚ΠΎ домохозяйства тратят всСх своих Π΄ΠΎΡ…ΠΎΠ΄ΠΎΠ², Ρ‚ΠΎ ΠΌΡ‹ ΠΏΡ€ΠΈΡˆΠ»ΠΈ, Ρ‡Ρ‚ΠΎ экономисты Π½Π°Π·Ρ‹Π²Π°ΡŽΡ‚ Π±Π΅Π·Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΎΠ³ΠΎ равновСсия.Β Π£Ρ€ΠΎΠ²Π΅Π½ΡŒ Π΄ΠΎΡ…ΠΎΠ΄Π°, которая расходуСтся ΠΈ ΠΏΠΎΠ»ΡƒΡ‡Π΅Π½Π½Ρ‹Ρ… двумя Π³Ρ€ΡƒΠΏΠΏΠ°ΠΌΠΈ Π½Π΅ ΠΈΠ·ΠΌΠ΅Π½ΠΈΡ‚, ΠΏΠΎΡΠΊΠΎΠ»ΡŒΠΊΡƒ, ΠΊΠ°ΠΊ ΠΎΠ΄Π½Π° Π³Ρ€ΡƒΠΏΠΏΠ° ΠΏΠΎΠ»ΡƒΡ‡Π°Π΅Ρ‚ Π΅Π³ΠΎ, ΠΎΠ½ΠΈ проводят Π΅Π³ΠΎ с Π΄Ρ€ΡƒΠ³ΠΈΠΌΠΈ.Β 
Π’ΠΎΡ‚ Ρ„Π°ΠΊΡ‚, Ρ‡Ρ‚ΠΎ экономика находится Π² Π½Π΅ΠΉΡ‚Ρ€Π°Π»ΡŒΠ½ΠΎΠΌ равновСсии просто ΠΎΠ·Π½Π°Ρ‡Π°Π΅Ρ‚, Ρ‡Ρ‚ΠΎ ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ Π½Π°Ρ†ΠΈΠΎΠ½Π°Π»ΡŒΠ½ΠΎΠ³ΠΎ Π΄ΠΎΡ…ΠΎΠ΄Π° ΠΈ, ΡΠ»Π΅Π΄ΠΎΠ²Π°Ρ‚Π΅Π»ΡŒΠ½ΠΎ, ΡƒΡ€ΠΎΠ²Π΅Π½ΡŒ экономичСской активности, ΡΠ²Π»ΡΡŽΡ‚ΡΡ ΡΡ‚Π°Π±ΠΈΠ»ΡŒΠ½Ρ‹ΠΌΠΈ ΠΈ Π½Π΅ΠΈΠ·ΠΌΠ΅Π½Π½Ρ‹ΠΌΠΈ.(РавновСсиС Ρ‚ΠΎΡ‡ΠΊΡƒ равновСсия, Π² ΠΊΠΎΡ‚ΠΎΡ€ΠΎΠΉ Π½Π΅Ρ‚ Π² равновСсии это Π½Π΅ Π·Π½Π°Ρ‡ΠΈΡ‚, Ρ‡Ρ‚ΠΎ ΠΊΠ°ΠΆΠ΄Ρ‹ΠΉ, ΠΊΡ‚ΠΎ Ρ…ΠΎΡ‡Π΅Ρ‚, Ρ‡Ρ‚ΠΎΠ±Ρ‹ Ρ€Π°Π±ΠΎΡ‚Π° ΠΈΠΌΠ΅Π΅Ρ‚ ΠΎΠ΄ΠΈΠ½ ΠΈΠ»ΠΈ, Ρ‡Ρ‚ΠΎ странС Π²Π°ΠΆΠ½ΠΎ Ρ‚ΠΎΡ‡Π½ΠΎ Ρ‚Π°ΠΊ ΠΆΠ΅ ΡΡ‚ΠΎΠΈΠΌΠΎΡΡ‚ΡŒ Ρ‚ΠΎΠ²Π°Ρ€ΠΎΠ² ΠΈ услуг, Ρ‚Π°ΠΊ ΠΊΠ°ΠΊ экспорт.

Models of economy