ECON 2 Lecture Notes - Lecture 11: Economic Equilibrium, Autarky, Aggregate Demand

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amaranthgrasshopper262

27 Aug 2020

School

Irvine Valley College

Department

Economics

Course

ECON 2

Professor

colins

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Document Summary

Equilibrium occurs when there is no tendency for change. In the macroeconomic goods market, equilibrium occurs when planned aggregate expenditure is equal to aggregate output. Planned aggregate expenditure (ae) = c + i. Thus at equilibrium; ae = y = c + i. If this condition does not hold then there will be dis-equilibrium. If y > ae, output is greater than planned aggregate expenditure and there will be unplanned increase in inventories. If y < ae, output is less than planned aggregate expenditure and there will be unplanned decrease in inventories. Therefore equilibrium occurs only when planned aggregate expenditure equals output. The s = i equilibrium condition of the goods market. Assuming an economy that does not involve in foreign trade, using the income approach national. Income (y) is expressed as y = c + s + t. Using the expenditure approach, it expressed as y = c + g + i = ad.

Related Questions

If aggregate expenditures fall short of real GDP in the Keynesian model, then

Question 2 options:

A) employment falls as the economy attains equilibrium.

B) the economy will have deflation.

C) firms are depleting their inventories.

D) the money supply will increase.

Which of the following conditions does not necessarily hold when the economy is in a Keynesian equilibrium?

Question 3 options:

A) There will be no tendency for real GDP to change.

B) The economy will be at full employment.

C) Firms will not have any unplanned inventory investment accumulation

D) Aggregate output will equal aggregate expenditures.

According to the Keynesian model, an economy will have persistent, high unemployment if

Question 4 options:

A) market operate freely.

B) the government runs a budget deficit.

C) firms make too many investments.

D) its total spending is low.

If firms are experiencing unplanned reductions in their inventories,

Question 5 options:

A) firms should reduce their production.

B) aggregate output exceeds aggregate expenditures.

C) firms will increase output and hire more workers.

D) the economy has attained equilibrium

amaranthelk637

On the planet Omicron Persei 8, government spending is $1000, net taxes are $1200, and planned investment is $1400. Consumers spend according to the equation C = 100 + 0.8Yd, where Yd represents disposable income. Given this information, fill out the table below to determine which of the output levels represents a macroeconomic equilibrium, then answer the questions that follow. Output (Income) Y Net Taxes T Disposable Income Yd Consumption C Planned Investment I Government Purchases G Planned Aggregate Expenditure AE Unplanned Inventory Change 6200 1200 5000 3850 1400 1000 6250 -50 6700 1200 5500 4225 1400 1000 6625 75 7200 1200 6000 4600 1400 1000 7000 200 7700 1200 6500 4975 1400 1000 7375 325 8200 1200 7000 5350 1400 1000 7750 450

An a. Which level of output is a macroeconomic equilibrium? There is no level of equilibrium based on inventory levels.

b. Is the government budget balanced, in deficit, or surplus, and by how much? Since the government is spending less than it is collecting in taxes, we are showing a surplus.

c. Find the marginal propensity to consume, and the marginal propensity to save. d. Find the government spending multiplier. If the government wanted to increase the equilibrium level of income by $1,000, how much would it have to increase government purchases? e. Find the tax multiplier. If net taxes were lowered by $100, what effect would it have on the equilibrium level of income? Give a specific numerical answer.