Multiplier Effect of Autonomous Demand on Equilibrium Output

Example Calculation of the Multiplier (k)

Derivation of the Change in Output from an Investment Shock

In a simplified economic model, the equilibrium output (Y) is determined by the equation Y = k(c₀ + I), where 'k' is a multiplier with a value greater than 1, 'c₀' represents spending that does not depend on income, and 'I' represents investment spending. If businesses suddenly become more pessimistic about the future and reduce their investment spending (I), while 'k' and 'c₀' remain unchanged, what will be the resulting effect on the equilibrium output (Y)?

Calculating Equilibrium Output

Deconstructing the Equilibrium Output Equation

In the macroeconomic model where equilibrium output is represented by the equation Y = k(c₀ + I), match each component of the equation to its correct economic description.

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?