In the Simple Keynesian Model with No Government or Foreign

question 58

Multiple Choice

In the simple Keynesian model with no government or foreign sectors, suppose that the economy is in equilibrium at an output level of $10 trillion with a marginal propensity to consume of 0.8. If investment spending increases by $0.5 trillion, what is the new equilibrium output level?

• A) $10.5 trillion
• B) $10.8 trillion
• C) $12 trillion
• D) $12.5 trillion

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Definitions:

Laspeyres Price Index

The Laspeyres Price Index measures the change in the price of a basket of goods and services over time, using the quantities of the base period.

Base Year

A specific year chosen as a point of reference or benchmark for economic or financial calculations, such as indexing or comparing prices.

Current Year

The ongoing calendar year during which an event or measurement is taking place.

Laspeyres Price Index

An index that measures the change in the price of a basket of goods and services based on the quantities purchased in a base period.