Samenvatting Macroeconomics Canadian Edition

-
ISBN-13 9781319120085
109 Flashcards en notities
1 Studenten
  • Deze samenvatting

  • +380.000 andere samenvattingen

  • Een unieke studietool

  • Een oefentool voor deze samenvatting

  • Studiecoaching met filmpjes

Onthoud sneller, leer beter. Wetenschappelijk bewezen.

Dit is de samenvatting van het boek "Macroeconomics Canadian Edition". De auteur(s) van het boek is/zijn Paul Krugman. Het ISBN van dit boek is 9781319120085. Deze samenvatting is geschreven door studenten die effectief studeren met de studietool van Study Smart With Chris.

Samenvatting - Macroeconomics Canadian Edition

  • 11 Income and Expenditure

  • What are the assumptions of the multiplier on consumer spending
    1. Producers are willing to supply output at a fixed price
    2. interest rates is given
    3. no government spending and no taxes
    4. exports and imports are zero
  • What do we mean for business and consumers spending an additional dollar when we say producers willing to supply additional output at a fixed price
    When consumers or businesses buying investment goods decide to spend an additional dollar, it will translate into the production of an additional value of goods and services without inflation, or a rise in the overall price.
  • What will happen to changes in aggregate expenditure as a result of the supply of additional output being fixed
    As a result, of the supply of additional output being fixed changes in aggregate expenditure translate into changes in aggregate output, as measured by real GDP.
  • Waht will happen if investment spending increases, by what amount  will aggregate output increase and why? What will happen to household income when the aggregate output increases
    • This will increase income and the value of aggregate output by the same amount.
    • This is because each dollar spent on a good, and distributed as income to its factor input (wages)
    • when the aggregate output increases, household disposable income increases in the form of wages and profits.
    • this leads to a rise in consumer spending which leads firms to increase output
    • Again with the rise in firms output, a rise in wages and a rise in a rise in consumer spending.
    • Therefore the increase in the investment on a good will raise the overall income, leading to a rise in aggregate output.
  • How do we calculate the total effect on aggregate output if we sum the effect from all these rounds of spending increases? What multiplier do we use? What do you call whatever you don't spend? And what is the formula? What is the total rounds of increase equal to?
    • To calculate  the total effect on aggregate output if we sum the effect from all these rounds of spending increases we need know the Marginal Propensity to consumer.
    • MPC is the change in consumer spending when disposable income rises or falls. MPC = Δ  Consumer spending/ Δ  Disposable income
    • This MPC is between 0 and 1
    • Whatever you don't spend is your marginal propensity to save or MPS or 1-MPC
    • So the total effect on aggregate output when the rounds of spending increases is measured by
    • Total increase in real GDP = ( 1+MPC+MPC^2+MPC^3 + … ) × $ dollar rise in real GDP  or
    • I =(1/MPC)$ dollar rise in real GDP 
  • What is the reason that the total real GDP is limited to a number even if income increases, why dont we spend all the money, why is there decreasing returns to scale in spending when the is increase in income?
    • That is because at each stage of expansion, as disposable income rises so of the income gets leaked out because it is saved.
  • How much of an addtional income dollar of disposable income is saves depends what? And what is that?
    The Marginal propensity to save MPS
  • What leads to a rise in consumer spending and a rise in real GDP (wealth effect)?
    An increase in asset  prices makes owners feel richer therefore the spend more.
  • What does self governing mean in the context of autonomous change in  expenditure? And what is autonomous change in  expenditure?
    • it means that the rise in consumer spending is the cause of the rise in real GDP not that effect not the result of it.
    • the initial rise in consumption occurs first and then it is followed by the rise in real GDP.
  • What is the importance of multiplier effect? what does the size of the multiplier depend on? And why? Formula?
    • we use it to determines how large each round of expansion is compared to the previous round, by applying the size of the MPC to determin that ratio
    • It is the ratio of the total change in real GSP caused by an autonomous change in aggregate expenditure
    • the size of the multiplier depends on the autonomous change in aggregate expenditure.
    • multiplier= change in Y/change in AE = 1/(1-MPC)
    • Y is real GDP, AE autonoumous expenditure.
  • Formula for change in real GDP
    • change in Y= 1/(1-MPC)*change in AE
    • Y is real GDP, AE autonoumous expenditure
  • What determines how much saving occurs
    The higher the MPC the higher less disposable income leaks out into savings.
  • In what situations do the formula for the multiplier change?
    When taxes and foreign trade is introduced.
  • 11.2 Consumer Spending

  • How important are consumption decisons
    Come back here
  • 11.2.1 Current Disposable Income and Consumer Spending

  • What determins a families consumer spending
    Its current disposable income after taxes are paid and transfers are received
  • What is the equation that represents the relationship between disposable income and consumer spending. And what is its formula?
    the individual consumption function
    C=ac+ MPC*yd
    where  
    the lower case indicated that it is for an individual houseld
    C is the individual consumer spending
    ac is the autonomous consumer spending and ac is greater than zero
    yd is the individual household disposable income
  • Why do assume that autonomous consumer spending as greater than zero even though there is expenditure?
    This is because a household with no disposable income is able to fund some consumption by borrowing and saving.
  • Cahnge in consupmtion foor an individual household formula?
    Is the MPC * change in individual household disposable income
  • What is the slope of a consumption function
    Change on c/ change in yd
    it is upward sloping?
  • Why is the consumption function upward sloping
    It is upward sloping showing that housholds with higher surrent disposable income had higher consumer spending.
  • What is the Macroeconomic realtionship between disposable income and consumer spending
    The Aggregate consumption function
  • How does the aggregate consumption function differe from the normal consumption function? Formula?
    The aggregate consumption function applies for the economy as a whole
    C= AC +MPC* YD
    where  
    the UPPER case indicated that it is for the whole economy
    C is the aggregate consumer spending
    AC is the autonomous consumer spending and AC is greater than zero or the amount of consumer spending when YD =0
    YD is the aggregate disposable income
Lees volledige samenvatting
Deze samenvatting. +380.000 andere samenvattingen. Een unieke studietool. Een oefentool voor deze samenvatting. Studiecoaching met filmpjes.

Laatst toegevoegde flashcards

What kind of countries have a smaller reduction in their multiplier?
larger more sufficient countries with lower imports have a smaller reduction in their multiplier
What does the extent to which the multiplier falls depend on?  what is the name for extent to which the multiplier falls depend on?
It depends on how much of an additional dollar of spending on falls on imports rather than domestic goods.
this can be called MPI or marginal propensity to import
What happens what there is a decrease in exports
When there is a decrease in exports then there is decline the money that enters the country, so a decline in income then a decline in demand for consumer goods.
this leads to a decline in GDP again
what two modifications does exports and import have that affect the how the multiplier work?
  • First, income earned from exports is a source of spending on domestically produced goods and services
  • second the multiplies is made weaker by the effects of imports, because imports leads money leaks abroad and leaves the country's leading the rise in overall GDP  to be less than the rise in GDP when the economy is washout trade.
An autonomous change in planned aggregate expenditure leads to? What does autonomous change in planned aggregate expenditure play an important role in?
A change in income-expenditure equilibrium GDP both directly and through an induced change in consumer spending
autonomous change in planned aggregate expenditure plays an important role in expansions
What does the paradox of thrift describe when looking at the income expenditure equilibrium GDP?
  • the paradox of thrift describes what happens when in households and firms cut their spending anticipating tough times
  • this causes a fall in income expenditure quilibrium GDP (THAT IS SEVERAL TIMES LAREGER THANTHE FALL IN OVERALL SPENDING) .
  • which leads real GDP to fall leaving consumers and producer worse off.
  • which leads to a depressed economy, leaving household and firms worse off than if they had acted by spending during this time.
  • so lavish spending makes consumer and producers better off
What happens to the increase real GDP at each round the to the next? Why is the increase in YD and real GDP diminishing?
  • The increase in real GDP diminishes from each round to the next, to the point where the increase of real GDP is negligible
  • The increase in YD and real GDP diminishing because at each round some of the increase in disposable income leaks out into savings.
What 2 thing does it mean when the multiplier is greater than 1
  • It mean that
    • the change in income-expenditure equilibrium GDP (income from expenditure) is larger thatn the autonomous change in planned aggregate expenditure.
    • each increase in disposable income and each corresponding increase in spending is smaller than the pervious round, because MPC is less than 1 
What occurs in the second round after the increase in YD lead to a rise in consumer spending at the end of the first round? What do we call what happened, and what is its formula for the multiplier?
  • The increase in YD lead to a rise in consumer spending, sets off a second round of increase in real GDP
  • which lead the disposable income and consumer spending to increase further.
  • we call what happened the ffects of the multiplier
  • the mulitplier is calculate by taking the change in income, divided by change in aggregate expenditure.
How do firms respond to a decrease in unplanned inventory investment? Which leads to what in real GDP? Which leads to what in disposable income?
Firms respond to an unplanned inventory investment by increasing production.
which leads to a rise in real GDP
which leads to an increase in disposable income .