Chapter 20Introduction to macroeconomics and national income accounting David Begg, Stanley Fischer and Rudiger Dornbusch, Economics, 6th Edition, McGraw-Hill, 2000 Power Point presenta
Trang 1Chapter 20
Introduction to macroeconomics and national income accounting
David Begg, Stanley Fischer and Rudiger Dornbusch, Economics,
6th Edition, McGraw-Hill, 2000 Power Point presentation by Peter Smith
Trang 2Macroeconomics is
the study of the economy as a whole
it deals with broad aggregates
but uses the same style of thinking
about economic issues as in
microeconomics.
Trang 3Some key issues in macroeconomics
Inflation
– the rate of change of the general price level
Unemployment
– a measure of the number of people looking for work, but who are without jobs
Output
– real gross national product (GNP) measures total
income of an economy
it is closely related to the economy's total output
Trang 4More key issues in macroeconomics
Economic growth
– increases in real GNP, an indication of the expansion of the economy’s total
output
Macroeconomic policy
– a variety of policy measures used by the government to affect the overall
performance of the economy
Trang 5Inflation in the UK, 1950-99
0
5
10
15
20
25
30
Source: Economic Trends Annual Supplement, Labour Market Trends
Trang 6Inflation in selected European countries
% change 1998 compared with 1997
Greece
Portugal
Italy
Spain
UK
Finland
EU Belgium
France
Germany
Trang 7Inflation in UK, USA and Germany
0 2 4 6 8 10
12
14
16
1960-73 1973-81 1981-90 1990-98
UK USA Germany
Trang 8Unemployment in the UK, 1950-99
0
2
4
6
8
10
12
14
Source: Economic Trends Annual Supplement, Labour Market Trends
Trang 9in selected European countries
% unemployment (ILO measure) 1998
Greece
Portugal
Italy
Spain
UK
Finland
EU
Belgium
France
Germany
Trang 10in UK, USA and Germany
0 2 4 6 8 10
1960-73 1973-81 1981-90 1990-98
UK USA Germany
Trang 11Economic growth
in UK, USA and Germany
0 1 2 3 4 5
1960-73 1973-81 1981-90 1990-98
UK USA Germany
Trang 12The circular flow of income,
expenditure and output
Y
C + I
I C
S
Trang 13Government in the circular flow
Y
C + I + G
I
C S
C + I + G - T e
T e
G
B - T d
Y + B - T d
Trang 14Adding the foreign sector
To incorporate the foreign sector
into the circular flow
we must recognize that residents of
a country will buy imports from
abroad
and that domestic firms will sell
(export) goods and services abroad.
Trang 15GDP and GNP
Gross domestic product (GDP)
– measures the output produced by
factors of production located in the
domestic economy
Gross national product (GNP)
– measures the total income earned by
domestic citizens
GNP = GDP + net income from abroad
Trang 16Three measures of national output
in the economy
Trang 17National income accounting: a summary
GNP
(and
GNI)
at
market
prices
GDP at market prices
NYA
C
X - Z I
NYA
G
NNP
at basic prices
Deprec'n
National income
Indirect taxes
Wages and salaries
Self-employment
Profits, rents
Trang 18What GNP does and does not measure
Some care is needed:
– to distinguish between real and nominal
measurements
– to take account of population changes
– to remember that GNP is not a
comprehensive measure of everything that contributes to economic welfare