Macro Economics

MACRO-ECONOMICS
• Macroeconomics looks at the economy as an
organic whole.
• Macro-economics studies economic aggregates
such as: total output, total demand, aggregate
income, total savings, total investment, total
employment, rise and fall in general price level,
interest rates.

Macro-economics
Macroeconomics
• is the study of what is happening to the economy as
a whole, the economy-in-the-large, the macro-
economy.
• Macroeconomists' principal tasks: to try to figure
out why overall economic activity rises and falls: the
value of production, total incomes, unemployment,
inflation, Intermediate variables like interest rates,
stock market values, and exchange rates--that play a
major role in determining the overall levels of
production, income, employment, and prices.

Macro-economics
Versus Micro-economics

Macro-economics
Versus Micro-economics
• By itself macroeconomics is only half of economics. For
more than half a century economics has been divided into
two branches, macroeconomics and microeconomics.
• Macroeconomists examine the economy in the large,
focusing on feedback from one component of the
economy to another, and studying the total level of
production and employment.
• Micro-economists study the markets for single
commodities, examining the behaviour of individual
households and businesses. They focus on how
competitive markets allocate resources to create producer
and consumer surplus, as well as on how markets can go
wrong.

Macro-economics Versus Micro-
economics
• These two groups of economists differ in their view of
how markets work.
• Micro-economists assume that imbalances between
demand and supply are resolved by changes in prices.
Rises in prices bring forth additional supply, and falls in
prices bring forth additional demand, until supply and
demand are once again in balance.
• Macroeconomists consider the possibility that
imbalances between supply and demand can be resolved
by changes in quantities rather than in prices. That is,
businesses may be slow to change the prices they charge,
preferring instead to expand or contract production until
supply balances demand.

Macro-economics Versus Micro-
economics

Macro-economics Versus Micro-economics
• In every generation, economists attempt to
integrate microeconomics and macroeconomics
by providing "
• Micro-foundations." But no one believes that the
bridge between microeconomics and
macroeconomics has yet been soundly built.
Economists are divided between those who
think that the failure to successfully integrate
the two branches is a flaw that urgently needs
to be corrected, and those who think it is a
regrettable but minor annoyance.

Macro-Economy Indicators
• There are Six key indicators of economic
activity
Six Key Indicators
• Real Gross Domestic Product
• The unemployment rate
• The inflation rate
• The interest rate
• The level of the stock market
• The exchange rate.

Real Gross Domestic Product
• The first two are directly and immediately connected to
people's material well-being. The other four are indicators
and controls that profoundly influence the economy's
direction.
• Real GDP
• "Real" means that this measure corrects for changes in the
overall level of prices.
• "Gross" means that this measure includes the replacement of
worn-out and obsolete equipment and structures as well as
completely new investment

Real Gross Domestic Product
• "Domestic" means that this measure counts economic activity that
happens in the country, whether or not the workers are legal residents and
whether or not the factories are owned by national companies
• “Product" means that real GDP measures the production of final
goods and services.
• It includes consumption goods (things that consumers buy, take home
or take out, and consume) and investment goods (things like machine
tools, buildings, highways, and bridges, that boost the country's capital
stock and productive capacity).
• It also includes government purchases: things that the government (acting
as our collective agent) buys and uses.
• Real GDP divided by is an imperfect measure of how well the economy
produces goods and services that people find useful--the necessities,
conveniences, and luxuries of life. It says nothing about the relative
distribution of the nation's economic product. It measures market prices,
not user satisfaction , it is an imperfect measure of material well-being.

The Unemployment Rate
• The number of unemployed people divided
by the total labor force The unemployment
rate is the best indicator of how well the
economy is doing relative to its productive
potential.

The Inflation Rate
• A third key economic indicator is the inflation rate
• A very high inflation rate--more than 20 percent a month, say--
can cause massive economic destruction, as the price system
breaks down and the possibility of using profit- and-loss
calculations to make rational business decisions vanishes. Such
episodes of hyperinflation are among the worst economic disasters
that can befall an economy.
• Strangely, moderate inflation rates--a little more than 10 percent
a year, say--are highly unsettling to consumers and business
managers. Moderate inflation should not seriously compromise
consumers', investors', and managers' ability to determine the
best use of their financial resources or to calculate profitability.
Yet all these groups are strongly averse to it. Politicians in the
industrialized economies have discovered that if they fail to preside
over low and stable inflation rates then they are likely to lose the
next election.

The Interest Rate
• Though economists speak of "the" interest rate, there are
actually many different interest rates applying to loans of
different durations and different degrees of risk. The different
interest rates often move up or down together so that economists
speak of the interest rate, referring to the entire complex of different
rates. But interest rates do not move in concert all the time. The
causes of variations in the yield curve, which describes the
pattern of interest rates, are an important part of
macroeconomics.
• Whenever interest rates are low--that is, when money is
"cheap"--investment tends to be high, because businesses find
that a wide range of possible investments will generate enough
cash to pay the interest on borrowed money, repay the principal
of the loan, and still produce a profit.

The Stock Market
• The level of the stock market is the key economic
indicator you hear about most often you hear
about it every single day unless you try hard to
avoid the news.
• The level of the stock market is an index of
expectations for the future. When the stock
market is high, investors expect economic growth
to be rapid, profits to be high, and unemployment
to be relatively low.

The Exchange Rate
• The sixth and last key economic quantity is the exchange rate.
• The nominal exchange rate is the rate at which the money of different
countries can be exchanged one for another. The real exchange rate is
the rate at which the goods and services produced in different countries can
be exchanged one for another.
• The exchange rate governs the terms on which international trade and
investment take place. When the domestic currency is appreciated , its
value in terms of other currencies is high. Foreign-produced goods are
relatively cheap for domestic buyers, but domestic- made goods are
relatively expensive for foreigners. In these circumstances imports are
likely to be high; exports are likely to be low. When the domestic currency
is depreciated, the opposite is the case.
• Domestically-made goods are cheap to foreign buyers. Thus exports
are likely to be high. But domestic consumers' and investors' power to
purchase foreign-made goods is limited. Thus imports are likely to be
low.

Economy And Basic Economic Activities
• An economy is the system of earning livelihood (Brown). An economy is just a
group of people dealing with one another as they go about their lives. Another
more common definition: Economy is a system of four basic economic
activities such as: production, distribution, consumption and investment of
goods and services.
• Production is transformation of inputs into output/finished products. It is
creation or addition of utilities. We can not produce matter. Matters are free gift of
nature. We make them more useful by transforming them into finished goods.
• Consumption is use of goods and services. It is destruction or decrease in
utility in a particular commodity.
• Investment also called captain formation is the production of new capital
goods. It is addition to existing capital stock of a society or economy.
• Distribution is the sharing of produced goods and services among the various
individuals that comprises a society.

Circular Flow
(Two Sector Model)

Classification of Goods and Services

Some Basic Concepts
• Consumption Goods: Consumption Goods are goods and services
used directly by individuals/households for satisfaction of wants.
• Capital Goods/investment goods: Investment/capital goods are
goods used in the manufacture of other goods.
• These are goods used for future/further productive activities such as
roads, buildings, roads and bridges, transport equipments
• Intermediate goods: Intermediate goods are goods that have to pass
through further production process or meant for resale during an
accounting year. These are goods meant neither for consumption nor
for investment. e.g. Raw materials, fuels, electricity etc.
Intermediate goods are not considered in the calculation of national
income.
• Final goods: Final goods consists of consumption goods and
investment goods. Final goods are considered in the calculation of
national income.

Some Basic Concepts
• Concepts of Capital formation or investment:
• GROSS DOMESTIC CAPITAL FORMATION : Gross Domestic capital
formation is value of newly produced capital goods during an accounting
year.
• Thus, Gross Domestic Capital Formation = Gross Domestic Fixed Capital
formation + Change in stock Where, gross domestic fixed capital formation
is the value of newly produced fixed capital goods i.e. assets within the
country such as: roads, buildings, roads and bridges, transport equipments
machineries and equipments.
• Change in stock is the change in stock of inventories of raw materials,
finished and semi-finished goods lying with the producers at the end of
accounting year
• NET DOMESTIC CAPITAL FORMATION= Gross Domestic Capital
Formation– Depreciation
• Where, Depreciation or Consumption of Fixed Capital is decrease in the
value of fixed capital assets due to normal wear and tear out.

GROSS DOMESTIC CAPITAL FORMATION

Some Basic Concepts
• Export: Export is s ale of goods and services to foreign countries.
• Import: Import is purchase of goods and services from foreign countries.
• Net Export: = Export – Import
• Net factor income from Abroad (NFIA) = factor income received from
abroad – factor income paid to abroad.
• Direct Taxes: Direct Taxes are taxes imposed on income and capital.
• Indirect taxes: Indirect taxes are Taxes imposed on goods and services.
• Subsidies: Subsidies are economic grants provided to certain cover up the
losses suffered when cost of production is more than the market prices.
• Net Indirect Tax = Indirect Tax – Subsidies
• Transfer payments or non-factor income: Transfer payments are payments
received without contributing anything to production process e.g.
unemployment benefits, old-age benefits, taxes, windfall profits from
speculation activities say lottery , pocket money, gifts etc.

Some Basic Concepts
• Factor Income: Factor incomes are the incomes generated
and earned by the owners of factors of production. These
includes wages, rents, interest, profits etc.

Some Basic Concepts
• Producing Sector of the Economy : In order to determine the output of the
economy , the economy is classified into three broad industrial sectors such as
primary sector , secondary sector and tertiary sector.
• Primary sector includes
• Agriculture
• Mining and quarrying
• Fishing and Animal Husbandry
• Secondary Sector which includes o Construction
• Manufacturing
• Tertiary sectors which includes o Transportation, communication, storage
and other public utilities
• Trade
• Hotels and restaurants
• Banking , insurance and finance o Professions and business services including
accounting; software development; data processing services; business and
management consultancy; architectural, engineering and other technical
consultancy; advertisement and other business services real estate and Ownership
of dwellings
• Public administration and defence
• Other services including education, medical and health, religious and other
community services, legal services, recreation and entertainment services

Producing Sector of the Economy

Concept Of National Income
• The value of aggregate output produced by
different sectors during a given time
periods.
• In real terms—it is the flow of goods and
services produced in an economy in a
particular period a year.

Concepts Associated with National
Income

Concepts Associated with National
Income
• Distinction between Gross National Product and Gross
Domestic Product –
• Gross National Product (GNP) is different from Gross Domestic
Product (GDP) in following respects:
• (a) GNP refers to the total market value of all the final goods
and services produced in a country
• During a given year, plus net factor income from a broad.
• But GDP refers to the total market value of all the goods and
services produced in the given year With in the domestic territory of
the country.
• (b) GNP includes all income earned by the country in abroad
(including foreign investments). But
• GDP does not include the income earned by the country from
abroad.

Gross National Product (GNP) at market price:
•Gross National Product at market price is total money value of all final goods and
services produced annually in a country plus net factor income from abroad.
• Thus, GNP at Market price = GDP at Market price + NFIA
• = C + Ig + G + (X-M) + NFIA
•Where, NFIA is net foreign income from abroad
• Net Domestic Product (NDP) at market price:
•Net Domestic Product at market price is the money value of all final goods and services
produced within the country after providing for depreciation.
•Algebraically, NDP at market = GDP at Market price – Depreciation
• =C + Ig + G + (X-M) – D
• = C + ( Ig – D )+ G + (X-M)
• = C + In + G + (X-M)
Here, D is deprecation
•In is net domestic capital formation or investment

• Net National Product (NNP) at market price:
Net National Product at market price is the money value of all final
goods and services of a country after providing for depreciation.
•Thus, NNP at Market price= GNP at market price –
Depreciation
• = NDP at market price + NFIA
• = C + Ig + G + (X-M) + NFIA – D
• = C + ( Ig – D )+ G + (X-M) + NFIA
• = C + In + G + (X-M) + NFIA
•
Here, D is deprecation
•In is net domestic capital formation or investment

Net National Product (NNP) at
market price

Domestic Factor Income or Net Domestic Product
at Factor Cost
•Domestic Factor Income or Net Domestic product at factor cost
is the sum total factor income generated and earned by
suppliers/owners of factors of production within the domestic
territory of country during a year.
•Domestic Factor Income or NDP at factor cost
= Wages and salaries in kind and cash + contribution to
social security + Rents including imputed rents + royalties +
Interests + undistributed Profits + dividends + Mixed incomes
of self-employed

Domestic Factor Income or Net Domestic
Product at Factor Cost
• National Income (NI) or NNP at Factor Cost :
• National Income (NI) or NNP at Factor Cost is the sum
total factor income generated and earned by
suppliers/owners of factors of production in a country
during a year.
• National income or NNP at factor cost = Domestic Factor
Income + Net factor income from abroad
= Wages and salaries in kind and cash + contribution to social security
+ Rents including imputed rents + royalties + Interests + undistributed
Profits + dividends + Mixed incomes of self-employed + Net factor
income from abroad

Relationship between NDP at market price and NDP at factor
Cost
Had there been no government intervention in the economy, both NDP at market price
NDP at factor Cost would have been equal to each other. As the government interferes
with the economy through imposition of indirect taxes on goods and services, and
provision of subsidies to productive enterprises, these cause market prices of output to be
different from the factor income resulting from it. Hence, there arises difference between
NDP at market price and NI (NDP at factor cost).
In accounting sense,
NDP at factor cost - subsidies = NDP at market price – indirect taxes
NDP at factor cost = NDP at market price – indirect taxes + subsidies
Similarly,
o GDP at factor cost = GDP at market price - indirect tax + subsidies
o NNP at factor cost = NNP at market price - indirect tax + subsidies
o GNP at factor cost = GNP at market price – indirect taxes + subsidies

Measurement Of National Income
• There are three alternative ways of
estimating National Income of a country.
Broadly it may be viewed from income side,
output side and expenditure side.

Measurement Of National Income

Method Of Measurement Of National
Income

Value added Method or Product Method of Measuring National
Income
•Value added method adds up valued added by all productive sectors of the sectors of
the economy annually. It measures final money value of all goods and services
produced in a country during a year.
•
•The mains steps involved in value method are as follows:
•Step I: Identification and classification of production units located within the economic
territories into three distinct industrial sectors on activity basis such as: primary, secondary
and tertiary sectors. Final value of goods and services produced by these sectors are
measured.
•
•Step II: Estimation of Value Added by each production units in the industrial sector.
• For this the following information are collected
•
• Value of output
• Intermediate consumption
•
•Now, valued added = Value of Output – Intermediate consumption

Value added Method or Product Method
of Measuring National Income

Income Method of Measuring National Income
Income Method sums up all the factor incomes earned by suppliers /owners of
factors of production annually. Factor of productions are engaged in production
process and remunerated for their contribution.
•The mains steps involved in production method are as follows:
•Step I: Identification and classification of production units located within the economic
territories into three distinct industrial sectors on activity basis such as: primary, secondary
and tertiary sectors.
•
•Step II: Classification of factor income earned by each factor separately in different sector
of the economy. Factor incomes includes
• income from work which includes wages and salaries in kind, contribution to
social security
• income form ownership which includes rents, royalties and interests
• Income from control of property i.e. profits which includes dividends and
undistributed profits
• mixed incomes of self employed
• net factor income from abroad ( NFIA)

Step III: Estimation of National Income. Factor incomes paid out by each industrial sector
are ascertained. Summation of factors income paid out by all the industrial sectors NDP at
factor cost. By adding NFIA to NDP at factor cost, we arrive at national income.
i.e. NDP at factor cost Domestic Factor income= wages and salaries in kind and cash +
contributions to social security + rents including imputed rents + royalties + interests
+ dividends + undistributed profits + mixed incomes
Adding NFIA with NDP at factor cost, we arrive at NNP at factor cost or national
income.
i.e. NDP at factor cost + NFIA = NNP at factor cost or National Income

Final Expenditure Method of Measuring National
Income
Final Expenditure Method sums up expenditure incurred by different economic units on
final output (final goods and service) of the economy annually.
The mains steps involved in final expenditure are as follows:
Step I: Identification and classicisation of economic units into household sector , producer
sector, government sector and rest of the world sector.
Step II: Classification of final expenditure. Final expenditure are classified as
o Final consumption expenditure by household sector
o Gross domestic capital formation by producer sector
o Government final expenditure
o Net exports =Export –Import

Step III: Estimation of Gross Domestic Expenditure (GDE) and Gross National
Expenditure (GNE). Final expenditures are summed up to arrive at GDE . GDE is
equivalent to GDP at market price.
Thus, GDE= GDP at market price = Private final consumption expenditure
+ Gross domestic private capital formation
+ Government final expenditure
+ Net Exports
Adding net factor income from abroad (NFIA) to GDE, we arrive at GNE or GNP at
market price.
That i.e. , GNE = GNP at market price = GDE + NFIA

Final Expenditure Method of
Measuring National Income

Usefulness of National Income estimates
• It shows how the production is changing, to output and
the effects of government policies and programmes.
• In analyzing the relation between input of one industry and
the output of the other.
• It reveals the distribution of income among economic units.
• Changes of tastes and fashion are revealed which help
business men in deciding what to Produce or for whom to
produce.
• The national income quantum indicates the ability of a
country to pay its share for international purpose e.g.
membership of IMF or World Bank.

Usefulness of National Income
estimates

Difficulties in Estimating National Income

National Income And Economic Welfare
• Many things (pollution cost, disseminates of modern urban
living, leisure etc.) that contribute to Human welfare are
not included in the GNP (Gross National Product).
• GNP may not adequately reflect changes in the quality of
products.
• GNP does not measure the quality of life.
• Increase in the general price level would bring a fall in the
economic welfare.
• If the net National Product has increased on account of more
production of capital goods, it will not increase welfare.
• Welfare also depends upon the distribution of National
Income.
• The unequal distribution of National Income decrease
economic welfare.

National Income And Economic
Welfare

References
• Engineering Economic Analysis –NPTEL
http://nptel.ac.in/courses/112107209/
• Engineering Economics
http://www.inzeko.ktu.lt/index.php/EE
• Fundamentals of Economics and Management
Institutes of Cost Accountants of India www.icmai.in
• Modern Economics : Dr. H. L. Ahuja
• Principles for Macro-economics- C Rangarajan

Macro Economics

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