Causes of Business Cycle | Cause of Business Fluctuations | The evil effects of cyclical fluctuations of business firms

Business cycle, term used by economists to designate a periodic increase and decrease in an economy’s production and employment. Ever since the Industrial Revolution of the 1800s, the overall level of production in industrialized capitalist countries has varied from high output and employment to low output. Economists study business cycles because they have a significant impact on all aspects of an economy.

A variety of explanations have been offered for business cycles. The Austrian, American economist, Joseph Schumpeter published his innovation theory in the late 1930s. He relates upswings in the business cycle to new inventions, which stimulate investment in capital-goods industries. Because new inventions develop unevenly, business conditions alternate between expansion and contraction, according to Schumpeter’s theory.

Economists believe that business cycles are caused by many factors out of which the important ones are:

i) Changes in capital expenditures


When the economy is strong businesses have expectations of sales growth; they invest heavily in capital goods (e.g., machines, equipment, factory buildings, etc.) After a while businesses may decide that they have expanded to their limit, so they begin to pull back on their capital investments and cause an eventual recession.

ii) Innovation and imitation


Invention and innovations are assumed to the sources of business cycle. Innovations include new products, new inventions, or a new way of performing a task. Joseph Schumpeter early in the twentieth century pointed out the importance of invention and innovation in causing the business fluctuation. When a business innovates, it often gains an advantage on its competitors because of its cost decrease or its sales increase. Whatever the case, profits increase and the business grows. If other businesses in the same industry want to keep up, they then copy (imitate) what the innovator has done or they come up with something better. Imitation / Replication companies usually invest heavily and an investment boom follows. Once the innovation spreads to another industry, the situation changes. Further investments are unnecessary and economic activity may slow.

In modern time the real business cycle (RBC) theory developed by Edward Prescott, Finn Kydland, P. Long, and Charles Plosser in the twenty first century regard ‘technological shocks’ as the main cause of business fluctuations.

iii) Credit and loan policies


Economists also regard ‘credit and loan’ policies of commercial banking as the important source of fluctuation in economic activities. Monetarist economists claim that improper management of money and credit supply is the main cause of cyclical fluctuation in a market economy. When “easy money” policies are in effect, interest rates are low and loans are easy to get. They encourage the private sector to borrow and invest, thus stimulating the economy. Sooner or later, the increased demand for loans causes the interest rates to rise, which discourage new borrowers. As borrowing and spending slow down, the level of economic activity declines. The economy keeps declining until interest rates fall and the business cycle begins over again.

iv) External shocks


Economists also regard ‘external shocks’ as the cause of cycle. Shocks such as increases in oil prices, wars and international conflict, have the capacity to either drive the economy up, or drive it down. The economy may benefit when a new supply of natural resources is discovered. Such was the case with Great Britain in the 1970s when an oil field was discovered off its coast in the North Sea. The British economy of course profited seeing that world oil prices were at an all time high, but the high prices hurt the United States at the same time.

American economists Robert J. Gordon has stressed in supply shocks as the main cause of business cycle. Supply shocks in an economy occur when business fluctuations are caused by shifts in aggregate supply. In the USA, the classic examples came during the oil crisis of the 1970s, when sharp increase in oil prices contracted / reduced aggregate supply, increased inflation, and lowered output and employment. Many economists think that the low inflation and rapid growth of the American economy in the 1994-2000 periods may be explained by favorable supply shocks. During this period, costs grew slowly because of declining oil and commodity prices, declining import prices, rapid productivity growth, and below-par increases in medical care prices.

v) Political business cycles


Many analysts link / connect fluctuations to politicians who manipulate economic policies in order to be re-elected. Initially credited to German political economist Karl Marx (1818 – 1883) but later revised by, among others, Polish-born engineer and economist Michal Kalecki (1899 – 1970), political business cycle regards that economic fluctuations are caused by politicians who use fiscal and monetary policies (choosing between employment or inflation) in order to get elected / re-elected.


The evil effects of cyclical fluctuations of business firms


Certain effects of business cycles on individual concern are favorable. During revival and expansion, demand increases, selling prices rise more rapidly than costs, profits increase and individual manufacturer and merchants generally feel happy.
  1. Business cycles, however, land individual business firms into a number of disabilities and difficulties. Even during revival and the beginning of expansion phase, certain ill effects start appearing. The increase in raw materials price, labor costs and routs, and the higher rates charged for credits accommodation increase the costs of carrying on business when the situation becomes more difficult, the evil of cancellation develops.
  2. The businessman that his customers are refusing to take goods, which they have ordered, and that there is a decline in the volume of orders.
  3. During the later stages of expansion, business enterprises are confirmed by much more severe competition. Prices are maintained with difficulty.
  4. The decline in prices, which is characteristics of the period of recession, usually finds merchants and manufacturers with large inventories, which depreciate material value at this time. These excessive inventories are usually made up of finished goods rather than raw materials.
  5. The individual businessman usually suffers through being compelled to sell his goods at a loss in order to meet his obligations. This may result in either at least a sacrifice of profits, or possibly necessitating the carrying on of business at an actual loss.
  6. During contraction, one of the most important reasons for financial loss during such a period is found in the continuation of fixed charges of all sorts. It is possible during contraction for an individual concern to reduce its direct costs by the discharges of labor and the reduction of purchases of raw materials, but most of the elements of overhead cost cannot be so reduced.


          You may also like to read:          

Business Cycle: Meaning and Various Phases of Business Cycle

Business cycle is an important feature of capitalist economy. It means alternating periods of prosperity and depression in the country. It has been defined as an alternative expansion and contraction in overall business activity as evidenced by fluctuations in measures of aggregate economic activity, such as, the gross product, the index of industrial production and employment and income.

Generally speaking, the cyclical fluctuations have a tendency towards simultaneous appearance in all the branches of national economy. But, sometimes, they may be confined only to an individual industry of individual sectors of the economy. Cyclical fluctuations in such cases are referred to as specific cycles.

Phases of a Typical Business Cycle


A typical business cycle is characterized by five different phases or stages - depression, recovery (or revival), prosperity (or full employment), boom (or overfull employment) and recession.

i) Depression


The depression is the first stage of trade cycle. It is a protracted period in which business activity in a country is far below the normal. It is characterized by a sharp reduction of production, mass unemployment, falling prices, falling profits, low wages, contraction of credit, a rate of business failures and an atmosphere of all-round pessimism and despair. A decline in output or production is accompanied by a reduction in the volume of employment. A construction activity comes to a more or less complete standstill during a depression. The consumer goods industries, such as food and clothing, are not so much affected by unemployment as the basic capital goods industries. The prices of manufactured goods fall to low levels. Since the costs are ‘sticky’, and do not fall as rapidly as prices, the manufacturing suffer huge losses. Many of the firms have to close down an account of accumulated losses. The two longest depressions in the US history were those of 1873-1879 (65 months) and 1929-1933 (44 months).

ii) Recovery


It implies increase in business activities after the lowest point of the depression has been reached. During this phase, there is a slight improvement in economic activity, to start with. The entrepreneurs begin to feel that the economic situation is, after all, not so bad as it is in the preceding stage. This leads to further improvement in business activity. The industrial production picks up slowly and gradually. The volume of employment also increases steadily. There is slow but sure rise in prices accompanied by a small rise in profits. The wages also rise, though they do not rise in the same proportion in which the prices rise. Attracted by rising profits, new investments take place in capital goods industries. The banks expand credit. The business inventories also start rising slowly. The recovery continues until business activity reaches approximately the same level that it had achieved before the decline set in. the rate of recovery is generally related directly to that of the preceding depression. The more severe the depression, the more rapid will the recovery be.

iii) Prosperity


This stage is characterized by increased production, high capital investment in basic industries, expansion of bank credit, high prices, high profits, high rate of formation of new business enterprises and full employment. There is a general feeling of optimism among businessmen and industrialists. The longest sustained period of prosperity occurred in the USA between 1923 and 1929 with some minor interruptions in 1924.

iv) Boom


It is the stage of rapid expansion in business activity to new heights, resulting in high stocks and commodity prices, high profits and overall employment. The prosperity phase of the trade cycle does not end up with a stable state of full employment; it leads to the emergence of boom. The continuance of investment even after the stage of full employment results in a sharp inflationary rise of prices. This causes undue optimism among businessmen and industrialists who make additional investment in the various branches of the economy. This put additional pressures on the factors of production which are already fully employed, causing a sharp rise in their prices. Soon, the situation develops in which the number of jobs exceeds the over full employment. Attracted by rising profits, the businessmen further increase their capital investments. Runaway inflation raises its head in all its ugliness. Prices rise sky-high. There is an atmosphere of over-optimism all round.

But the developing boom carries within it the seeds of self-destruction. Factors of production become scarce causing spurt in their prices. The costs of calculations are upset. Some new hastily set up firms collapse. This makes the businessmen over-cautious. They now begin to stay away from new projects and even stop the expansion of existing units. This prepares the ground for the succeeding stage. A boom is inevitably followed by a bust.

v) Recession


A feeling of over-optimism of the earlier period is replaced now by over-pessimism characterized by fear and hesitation on the part of the businessmen. The failure of some among businessmen. The banks also get panicky and begin to withdraw loans from business enterprises. More business enterprises fail. Prices collapse and confidence is rudely shaken. The initial unemployment spreads to other industries. Unemployment leads to a fall in income, expenditure, prices and profits. Once a recession starts, it goes on gathering momentum and finally assumes the shape of full-fledged depression - the first stage of the trade cycle is complete. The 1957-58 recession in the USA was a severe one.

The various phases of the business cycle can be illustrated in the diagram as below.
Phases of Business Cycle

In this diagram, PM is the full employment line. Above this line, we have two stages of the trade cycle, a boom in the upswing and a recession in the downswing. Below this line again, we have two stages of the trade cycle, a recovery in the upswing and depression in the downswing. The business cycle as shown in the diagram passes through five stages. It starts with depression to be followed by recovery, prosperity, boom, recession, and ultimately ends up again with depression.


 You may also like to read:

Calculation of National Income and Difficulties in the Calculation of National Income

Production of goods and services gives rise to income, income given rise to demand for goods and services, demand gives rise to expenditure, and expenditure gives rises to further production. Thus, there is a circular flow of production, income and expenditure. On the basis of these, three related flows; national income can be looked at (i) as a flow of goods and services, or
(ii) as a flow of incomes, or (iii) as a flow of goods and services. Thus, there are three methods of measurement of national income.

i) Product / Output Method


Product method measures national income at the phase of production in the circular flow. This method is also called value added method. Data of all productive activities like agricultural products, industrial products, contribution of transport to production, service of lawyer, doctor, professors etc., are collected and measured their value at market prices. Under this method, there are two approaches to the estimation of national income.

a) Final Product Method

In this method, national income is estimated by finding the market value of final goods and services produced in the economy in a given period. Various steps in final product of calculating national income are:

The market value of all final goods and services produced within the territorial limits of the country gives estimate of GDP at market price.

Thus, GDP at market price = market value of all goods and services produced within the country.

Hence, GDP = Total agricultural product + Total industrial product + Total contribution of tertiary sector.

GNP = GDP + Net foreign income

NNP = GNP – Depreciation

Further, by deducting indirect taxes from NNP at market price, that gives NNP at factor cost of national income.

Hence, NNP at Factor Cost or National Income = NNP at market price – Net indirect taxes.

While calculating national income using final product approach, problem of double counting may be appeared. In order to avoid the double counting problem, we use value added approach.

b) Value Added Method

In this method, instead of taking market value of final product, the value added at different stages of production is counted for estimating national income. Thus, according to this method, national income is the sum total of value added by different producing units of a country in their production process. Value added means the addition to the value of raw materials and other inputs during the process of production. In order to calculate the value at a particular state of production, the cost of intermediate products is subtracted from the total value of output.

Hence, Value added = Value of capital – Cost of intermediate goods.

Producer
Stage of 
Production
Value of 
Output
Cost of 
Intermediate Goods
Gross 
Value Added
FarmerPaddy
100
50
50
MillerRice
150
100
50
WholesalerFlour
200
150
50
BankerBread
250
200
50
Total
700
500
200

The table is constructed on the supposition that the entire economy for purposes of total production consists of four sectors. The table below shows the contribution of different sectors to the GDP and computation of national income.

Measuring National Income by Output Method
($ in Million)
S. No.
Sector
Contribution of 
Different Sector
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
Agriculture, Forest and Fisheries
Transportation and Communication
Public Administration and Defense
Health and Education
Banking and Financial Institution
Irrigation, Electricity and Drinking Water
Construction Industry
Mine Industry
Industry, Trade and Commerce
Others
20
5
10
6
4
3
2
5
5
1
Gross Domestic Product (GDP)
61
11.
Net Income from abroad
+ 10
Gross National Product (GNP)
71
12.
Value of depreciation fund
- 6
Net National Product (NNP)
65
13.
Indirect Tax
- 4
Subsidies
+ 1
National Product (NP = NI = NE)
62

Despite the popularity gained in application, this method is not free from the problem of over estimation (double counting). To avoid the problem of double counting, economists have suggested two alternative methods, viz., final product method and value added method. We should keep in mind that whichever the method is applied, the result will be the same.

ii) Income Method


Income method measures national income from side of factor incomes. It is also known as distributive share method of factor payment method. In this method, net incomes received by all factors of production are added to obtain the national income. It means national income comprises the net rents paid to land, net wages paid to labor, net interest paid to capital and net profit earned by entrepreneurs. It does not include transfer payments.

According to Income Method,

GDI = Rents + Wages and salaries + Interests + Dividends + Undistributed profits + Indirect taxes + Depreciation

Where, GDI = Gross Domestic Income

GNI = GDI + Net foreign income

NNI = GNI – Depreciation

The measurement process can be shown in the table as below:

Measuring National Income by Income Method
($ in Million)
S. No.
Headings
In Million $
1.
2.
3.
4.
5.
6.
7.
8.
9.
Wages and Salaries
Interest
Rent
Dividends
Undistributed corporate profit
Corporate profit tax
Social Security Contribution
Income from self employment
Depreciation
12
10
16
8
6
1
2
3
3
Gross Domestic Income (GDI)
61
10.
Net Income from abroad
+ 10
Gross National Income (GNI)
71
11.
Depreciation
- 6
Net National Income (NNI)
65
12.
Indirect Tax
- 4
Subsidies
+ 1
National Income (NI = NP = NE)
62

iii) Expenditure Method


Expenditure method measures national income as the aggregate of all final expenditure on Gross Domestic Product in an economy within a year. In other words, the expenditure method measures the disposal of GDP. Final expenditure means expenditure on final product. Total final expenditure or national expenditure (Y) represents the sum total of final expenditure incurred on consumption goods (C) and investment (I). Symbolically;

Y = C + I

Final consumption expenditure includes private household consumption and government final consumption expenditure. Similarly, final investment expenditure comprises (i) Gross final investment, or Gross fixed capital formation; (ii) Changes in stock or inventory investment; and (iii) Net export of goods and services or net foreign investment.

Hence, GDE = C + I + G

GNE = GDE + (X – M)

NNE = GNE – Depreciation

Where, GDE = Gross Domestic Expenditure
GNE = Gross National Expenditure
NNE = Net National Expenditure
C = Consumption Expenditure
I = Investment Expenditure
G = Government Expenditure
X = Export earning
M = Import expenses
X – M = Net income from abroad (net foreign investment)

The measurement process can be shown in the table as below:

Measuring National Income by Expenditure Method
($ in Million)
S. No.
Expenditure Head
Expenditure
1.
2.
3.
4.
5.
Individual consumption expenditure
Total internal investment expenditure
Expenditure on goods and services by government
Exports of goods in monetary value
Imports of goods in monetary value
25
15
11
16
- 6
Gross Domestic Expenditure (GDE)
61
6.
Net income from foreign investment
+ 10
Gross National Expenditure (GNE)
71
7.
Depreciation
- 6
Net National Expenditure (NNE)
65
8.
Indirect Tax
- 4
Subsidies
+ 1
National Expenditure (NE = NP = NI)
62


So, from the above table, it is clear that if the entire production of a country is purchased at market price, the amount will represents the GNE of the country.


Difficulties in the Measurement of National Income

There are, however, some theoretical and practical difficulties in the way of the exact measurement of national income. A clear understanding of these difficulties, therefore, becomes necessary to understand the concept of national income relation to any particular country.
  1. Lack of statistical data: We can’t easily take statistical data of national income. The available data are inadequate and unreliable. For example, statistics of agriculture in developing countries is not complete. We have no reliable estimates of production cost in developing countries. These are not also statistical value of small scale industry and middle scale industries production.
  2. Existence of non-monetized sectors: All agricultural outputs do not reach the market. Either it is consumed at home or exchanged for other goods in the village. This presents several in the calculation of national income.
  3. Illiteracy and ignorance: The majority of the small producers in the underdeveloped countries are illiterate and ignorant. And the producers are not able to keep any account of their productive activities. So, they can’t give the information about the value of their output.
  4. Lack of occupational specialization: There are little occupational specialized people in underdeveloped country. Many people take up more than one activity to earn money. It becomes difficult to collect information about their income. A farmer engaged in agriculture, industries and other sectors during off season.
  5. Frequent changes in price level: National income depends on monetary price of production. But the problem of changing prices is one of the major problems of national income accounting.
  6. Problem of double and multi-counting: It is very difficult in national income calculation only one time. The goods can be counted as intermediate goods and final goods. For example, orange produced by a farmer can be taken as final goods if they consume it and intermediate goods if they sell it to the wholesaler. Sometimes, it is difficult to find the exact amount of consumption and sales.
  7. Illegal incomes: Such economic activities do not occur easily, for example, gambling, prostitution, black marketing, drug dealing etc. All their activities are not included in national income. So, due to the presence of illegal economic activities, national income underestimates the value of the output of an economy.
  8. Value of money may not be suitable measure of national income: Firstly, the value of money does not remain stable. It, therefore, cannot give a correct account of national income. Secondly, even though value of money may remain the same, the quality of goods may change. Lastly, there may be certain goods and services which may not have any money value at all, for example, services rendered in friendship or even in mercy (i.e., housewife’s work in the family).
  9. International transactions: National income determination in an economy having international economic relation would create a number of problems. Foreigners own a part of the output produced in the country, and the people of the country may receive income payments from aboard. How are these payments to be accounted for in the national income? Including in the national income produced within the country can solve this problem plus any income earned by the nation of that country in other countries by the way of interest, banking charges, etc., minus any payments of foreign countries by the way of interest, bank charges etc.

In the calculation of depreciation, valuation is also another difficulty to the measurement of national income.

In underdeveloped countries, conceptual and statistical difficulties of national income calculations become more severe. Major difficulties are given below:
  • A large portion of produced, especially in the agriculture sector, is not brought to the market for sale. It is either directly consumed by the producers or exchanged for other goods.
  • People are socially backward. They are superstitious and do not disclose their incomes easily and correctly.
  • Most of producers do not keep accounts of their produced goods because of illiteracy.
  • Lack of occupational specialization; an individual is engaged in supplementary occupations too. Due to this, the income from supplementary activities is not included in the estimation of national income.
  • Adequate statistical data are not available, and if available, they are not reliable.
  • There is a lack of trained and efficient statistical staff.
  • Problems of calculating national income also arise due to regional disparities of language, customers etc.
  • Mostly, people are indifferent and non-cooperative to the acquirement regarding the national income estimates.
  • A large number of producers are pretty producers, who do not have any accounts of their business. Hence it is difficult to include in national income.


                   You may also like to read:                 

National Income: Various concepts of National Income | Gross Domestic Product (GDP), Gross National Product (GNP), Net National Product (NNP), National Income (NI), Personal Income (PI), Disposable Income (DI), Per Capita Income

National income refers to the total income of the nation in a particular period of time. National income data reveals the aggregate economic performance of the economy as a whole. National income – represents a receipts total, expenditure total and the total value of production. Since one person’s income is another person’s expenditure and each commodity is bought and sold  
at its market prices, a national income accounting is based on the fundamental three fold identity: (i) The value received equals, (ii) The value paid equals, and (iii) The value of goods and services given in exchange.

Hence, National income = National expenditure = National Product

Marshall, Pigou & Fisher, has defined the traditional definitions of national income. According to Marshall, national income is, “The labor and capital of country acting on its natural resources produce annually a certain net aggregate of commodities, material and immaterial including services of all kinds. This is the true net annual income or revenue of the country or national dividend.”

Pigou’s definition of national income includes that income which can be measured in terms of money. According to Pigou, “National income is that part of objective income of the community, including of course income derived from abroad, which can be measured in money.” 

Fisher defined on the consumption basis. According to Fisher, “The national dividend or income consists solely of services as received by ultimate consumers, whether from their material or from their human environment. Thus, a piano, or an overcoat made for me this year income, but an addition to the capital. Only the services rendered to me during this year by these things are income.”

This definition of national income is better than Marshall and Pigou because it is near to the concept of economic welfare.

Simon Kuznets and Samuelson have given the modern definitions of national income. According to Simon Kuznets, “National income is the net output of the commodities and services flowing during the year from the country’s productive system in the hand of the ultimate consumers.” 

In the words of Prof. P. A. Samuelson, “National income or product is the final figure you arrive at when you apply the measuring rode of money to its land, labor and capital resources.” 

Modern economists view national income as a flow of output, income and expenditure. When the firms produce goods, the factors of production are paid income in the form of wages, profits, interest, rents, etc. Households on consumption goods spend a part of these income receipts and other part is saved. The producers for investment spending mobilize the savings. Thus, there is circular flow of production, income and expenditure. 

Hence, Total output = Total income = Total expenditure.

Various concepts of National Income


In modern times, a number of concept have come to be associated with the study of national income and social accounting which have made the study of national income broad based and comprehensive. The main concepts of national income are explained below:

i) Gross Domestic Product (GDP)

It is a measure of the total flow of final goods and services produced within a country over a specified time period, generally one year. It can be obtained by valuing output of goods and services at market prices and the summing that up. It includes final consumption and investment goods but it excluded intermediate product because they are already implicit in the prices of final products. In short GDP can be listed as:
  • GDP is expressed in money terms; it is the money value of final total goods and services produced within the country during a period of time. The value of final goods and services is calculated at the current market price; hence it is called GDP at market price.
  • GDP includes only those goods and services which have market value and which are brought in the market for sale.
  • GDP does not include depreciation of capital goods and services during the course of production as well as transfer payment and capital gains are not included under GDP.
Hence, GDP = Total agriculture product + Total industrial product + Total product of tertiary sector. By using expenditure method, it can be shown as:

GDP = C + I + G

Where, GDP = Gross Domestic Product

C = Consumption Expenditure

I = Investment Expenditure and

G = Government Expenditure


ii) Gross National Product (GNP)

Gross National Product is the total measure of the flow of final goods and services at market value produced during the year in a nation plus net foreign incomes. GNP is a broader concept than GDP. The net foreign income is the difference between the factor of income earned by our residents from foreign countries and the factor of income earned by the foreigners from native country.

Hence, GNP = GDP + Net foreign income

Or, GNP = C + I + G + (X – M)

Where, C = Consumption expenditure

I = Investment expenditure

G = Government expenditure

X = Total export earnings

M = Total imports expenses, and

X – M = Net income from abroad


iii) Net National Product (NNP)

In the production process, certain amount of fixed capital is used up. This is called depreciation of fixed capital or consumption of fixed capital. By deducting the value of depreciation from the value of GNP in a year, we get another measure of output called Net National Product.

Hence, NNP = GNP – Depreciation

Further, NNP at market price = GNP at market price – Depreciation


iv) National Income (NI)

National income is called national income at factor cost because the national income is calculated on the basis of the remuneration of factors of production. Since National Income is the result of the joint efforts of factors of production, it is distributed among the factors. The owners of labor, land, capital and entrepreneurs receive wage, rent, interest and profit respectively. Hence, national income is the sum of income received by factors of production. In other words, national income can be expressed as, 

National Income (NI) = Net National Product + Subsidies – Indirect taxes

Or, NI = NNP + S – IT

Where, NNP = Net National Product, 

S = Subsidies, 

IT = Indirect taxes


v) Personal Income (PI)

Personal income is the sum of all income actually received by all individuals or households during a given year. However, all income earned by a person does not constitute personal income. It only refers to the income received by the individuals.

Hence, Personal Income (PI) = National income – Corporate income taxes – Undistributed profits – Social security contribution + Transfer payments.


vi) Disposable Income (DI)

The entire amount received by the individuals and households are not available for consumption expenditure because some part of the personal income should be paid to the government in the form of direct tax (income tax). Hence, the income remained after paying direct taxes from personal income is called disposable income.

Hence, Disposable Income (DI) = Personal Income (PI) – Direct taxes.

The total disposable income is not spent on consumption. Some part is saved. Thus,

DI = C + S

Where, C = Consumption expenditure,

S = Saving


vii) Per Capita Income

Per capita income of a country usually refers to the average earning or income of individuals in a particular year. It is obtained by dividing the national income of the country by the total population.

Hence, Per capita income = National Income / Total Population

Hence, per capita income of the people is useful to compare people’s standard of living in different countries.

Calculation of GDP, GNP, NNP, NI, PI and PDI
($ in million)
1. Gross Domestic Product (GDP)440
Net Factor income from abroad+ 41
2. Gross National Product (GNP)481
Depreciation- 20
3. Net National Product (NNP)461
Net indirect taxes (indirect taxes - subsidies)- 6
National Income(NI)455
Corporate profit taxes, undistributed profits, and valuation adjustment- 2
Social security contribution- 3
Transfer payments to persons+ 6
Personal interest income+ 2
5. Personal Income (PI)458
Personal taxes (direct taxes)- 111
6. Personal Disposable Income (PDI)347

                  You may also like to read: