Change in Investment (ΔI) as an Autonomous Demand Shock
A change in investment, denoted as ΔI, is a common example used to illustrate a shock to autonomous demand. This initial change in spending initiates the multiplier process, leading to a larger, magnified change in the equilibrium level of output.
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Introduction to Macroeconomics Course
Ch.3 Aggregate demand and the multiplier model - The Economy 2.0 Macroeconomics @ CORE Econ
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Change in Investment (ΔI) as an Autonomous Demand Shock
Formula for Change in Output from an Autonomous Spending Shock
Impact of an Autonomous Spending Shock
In a closed economy with no government sector, the marginal propensity to consume is 0.8. If autonomous investment spending increases by $100 billion, what will be the total change in the equilibrium level of output?
Calculating and Explaining the Multiplier Effect
An economy experiences a $100 million increase in autonomous investment spending. The marginal propensity to consume is 0.75. Arrange the following events to illustrate the first few rounds of the multiplier effect in the correct chronological order.
In an economy where households tend to save a larger portion of any additional income they receive, an initial increase in autonomous investment spending will lead to a larger overall increase in equilibrium output compared to an economy where households save less.
An economy is characterized by a marginal propensity to consume of 0.75. An external event causes autonomous investment to increase by $100 billion. Match each term on the left with its correct corresponding value or description on the right.
Evaluating Economic Stimulus Policies
In a simple closed economy with no government, the marginal propensity to consume is 0.6. If autonomous investment decreases by $50 billion, the total change in equilibrium output will be a decrease of $____ billion.
Two closed economies, A and B, have no government sector. In Economy A, households spend 90 cents of every extra dollar they earn. In Economy B, households spend 60 cents of every extra dollar they earn. If both economies experience an identical, positive shock to autonomous investment spending, which of the following statements accurately describes the resulting change in their respective equilibrium outputs?
In a closed economy with no government, a $20 billion decrease in autonomous investment leads to a $100 billion decrease in total equilibrium output. What is the marginal propensity to consume in this economy?
Learn After
In a closed economy with no government, a sudden wave of business optimism leads to a $50 billion increase in planned investment spending. If the marginal propensity to consume is 0.8, what will be the total change in the economy's equilibrium output?
The Ripple Effect of Investment Shocks
Match each economic analysis task with the primary macroeconomic methodology it represents.
An economist who calculates the national unemployment rate by summing the number of unemployed individuals in every state and then stops their analysis has successfully completed a general equilibrium analysis of the labor market.
An economist is analyzing the effect of a nationwide drought on the U.S. economy. Arrange the following steps of their analysis according to the standard two-step methodology for understanding the economy as a whole.
In a closed economy with no government, a sudden wave of business optimism leads to a $50 billion increase in planned investment spending. If the marginal propensity to consume is 0.8, what will be the total change in the economy's equilibrium output?
In a closed economy with no government, a sudden wave of business optimism leads to a $50 billion increase in planned investment spending. If the marginal propensity to consume is 0.8, what will be the total change in the economy's equilibrium output?
Analyzing an Economic Stimulus Policy
Analyzing an Economic Stimulus Policy
Analyzing the Economic Impact of Business Confidence
Analyzing the Economic Impact of Business Confidence
In a simple economic model, a sudden drop in business confidence causes planned investment to fall by $30 billion. If the marginal propensity to save is 0.2, the total equilibrium output will ultimately decrease by $____ billion.
In a simple economic model, a sudden drop in business confidence causes planned investment to fall by $30 billion. If the marginal propensity to save is 0.2, the total equilibrium output will ultimately decrease by $____ billion.
In a simple, closed economy with no government, a technological breakthrough causes a wave of optimism among firms, leading to a total increase in equilibrium output of $500 billion. If the marginal propensity to consume in this economy is 0.8, what was the initial autonomous increase in investment spending that sparked this economic expansion?
In a small, isolated community, several items are used in trade. Freshly caught fish are often exchanged for other foods but must be consumed within a day. Unique, handcrafted sculptures are highly valued and held as family treasures, but rarely traded. Iron nails, which are durable and uniform, are frequently traded, but their value fluctuates wildly depending on the arrival of supply ships. Finally, seashells of a specific type are consistently accepted by everyone in exchange for any good or service, and all items in the local market have their prices listed in number of shells. Which of these items best fulfills the primary roles of money in this community?
Evaluating an Unconventional Medium of Exchange
In two closed economies, A and B, with no government sector, a new technology causes autonomous investment to increase by the same amount in both. If households in Economy A tend to save a larger portion of any new income than households in Economy B, then the final increase in total output will be greater in Economy A.
Analyzing the Viability of a Commodity as Money
Match each economic scenario with the primary function of money it best illustrates.
Derivation of the Change in Output from an Investment Shock
In a simple, closed economy with no government, a technological breakthrough causes a wave of optimism among firms, leading to a total increase in equilibrium output of $500 billion. If the marginal propensity to consume in this economy is 0.8, what was the initial autonomous increase in investment spending that sparked this economic expansion?