Makroekonomi analysis berita 1 muhamad (1)

Makroekonomi
Kapitel 1.
■Output growth—the rate of change of output
■ The unemployment rate—the proportion of workers in the economy who are not
employed and are looking for a job
■ The inflation rate—the rate at which the average price of the goods in the
economy is increasing over time

Kapitel 2.
Aggregate= ord för totala
intermediate good- vara om används igen

GDP is the measure of aggregate output, which we can look at from the
production side (aggregate
production), or the income side (aggregate income); and
ii. Aggregate production and aggregate income are always equal.

■From the production side: GDP equals the value of the final goods and services
produced in the economy during a given period.
■ Also from the production side: GDP is the sum of value added in the economy
during

a given period.
■ From the income side: GDP is the sum of incomes in the economy during a
given
period.
Nominal GDP is the sum of the quantities of final goods produced times their
current price. This definition makes clear that nominal GDP increases over time
for
two reasons:
■ First, the production of most goods increases over time.
■ Second, the prices of most goods also increase over time.

of real GDP per person, the ratio of real GDP to the population of the country

Beräkning av BNP tillväxt: (Yt - Yt-1)/Yt-1
Arbetsmarknad(L)= anställda(N) och arbetslöa(U) om letar jobb
Unemployment rate= arbetslösa av arbetsmarkanden: u =U
L
Current Population Survey (CPS)= underökning av sysselsätning i usa
Inflation is a sustained rise in the general level of prices—the price level. The inflation
rate is the rate at which the price level increases


two measures of the price level, at two
price indexes: the GDP deflator and the Consumer Price Index.
nominal GDP increase
faster than real GDP, the difference must come from an increase in prices
GDP deflator Pt =Nominal GDPt

Real GDP t

$Yt
Yt

PPI, or producer price index

CPI gives the cost in dollars of a specific list of goods and services over time
CPI gives the cost in dollars of a specific list of goods and services over
Time
Phillips curve has been redefined as a relation between the change in the rate of
inflation and the unemployment rate
Phillips curve has been redefined as a relation between the change in the rate of

inflation and the unemployment ratePhillips curve has been redefined as a relation
between the change in the rate of
inflation and the unemployment rate Phillips curve has been redefined as a relation
between the change in the rate of inflation and the unemployment rate
A low unemployment rate
leads to an increase in the inflation
rate, a high unemployment
rate to a decrease in the
inflation rate.

Okun’s law, is a
relation between output growth and the change in unemployment:
High output growth typically leads to a decrease
in the unemployment rate.
The second, called the Phillips
curve, is a relation between unemployment and inflation:
A low unemployment rate typically leads to an increase in
the inflation rate.
They think of output as being determined
by demand in the short run. They think of output as being

determined by the level of technology, the capital stock, and
the labor force in the medium run. Finally, they think of output
as being determined by factors like education, research,
saving, and the quality of government in the long run
Konsumtion= C
Investeringar= i

nonresidential investment= investeringar i tex maskin av ett företag

residential investment, privata investeringar tex ett hus

Goverment spending= G
Import= im
Export= x
The difference between exports and imports, 1X - IM2, is called net exports,
or the trade balance
Exports imports
3 trade surplus
Exports 6 imports
3 trade deficit


Under the assumption that the economy is closed, X = IM = 0, so the demand for
goods Z is simply the sum of consumption, investment, and government spending:
ZKC+I+G
he relation between consumption and disposable
income is given by the simpler relation:
C = c0 + c1 YD (3.2)
In other words, it is reasonable to assume that the function
disposable income is then characterized by two
parameters, c0 and c1:
c1 is called the propensity to consume. (It is also called the marginal
propensity to consume
Consumption
Function
C 5 c0 1 c1YD

disposable income YD. Disposable income is given by
YD K Y - T
where Y is income and T is taxes paid minus government transfers received by consumers
Endogenous variables:

explained within the model
Exogenous variables:
taken as given

Equilibrium Output= jämnvikts produktion
Z = c0 + c11Y - T2 + I + G
The demand for goods Z depends on income Y, taxes T, investment I , and government
spending G
There are three types of equations:
Identities
Behavioral equations
Equilibrium conditions

Rewrite the equilibrium equation (3.7):
Y = c0 + c1Y - c1T + I + G
Move c1Y to the left side and reorganize the right side:
11 - c12Y = c0 + I + G - c1T
Divide both sides by 11 - c12:
Y=
1

1 - c1
3c0 + I + G - c1T4

The parameter c1 is called the propensity to consume. (It is also called the marginal
propensity to consume
The parameter c0 has a literal interpretation. It is what people would consume if
their disposable income in the current year were equal to zero
Mer infor: http://www.investopedia.com/terms/m/marginalpropensitytoconsume.asp

By definition, private saving (S), saving by consumers, is equal to their disposable
income minus their consumption:
S = YD – C
private saving as income minus taxes minus consumption:
S=Y-T–C
If taxes exceed government spending, the government is running
a budget surplus, so public saving is positive. If taxes are less than government
spending, the government is running a budget deficit, so public saving is
negative.
The left side of this equation is simply private saving (S), so
S=I+G–T

Or:
I = S + (T – G)
equilibrium in the goods market requires that investment equal saving—the sum of
private and public saving= InvestmentequalsSaving= IS-relation
condition for equilibrium in the goods market:
Production = Demand
Investment = Saving
I = -c0 + (1 - c1) (Y – T) + (T – G)
Solving for output,
Y =1
X [c0 + I + G - c1T]
1 - c1