Assuming no change in government spending, an increase in taxes of $100 billion with an MPC of 0.80 will subtract a total of ₋$500 billion from the economy after the multiplier effect.
The marginal propensity to save (MPS) is the portion of each extra dollar of a household's income that's saved.
MPC stands for marginal propensity to consume. The economic definition of this phrase is the amount of extra income you spend on the consumption of goods and services.
Let’s take a look at the meaning of each word in this phrase.
Marginal: A function of a random variable obtained from several other variables
Propensity: A preference for something
Consume: To buy, use up
After breaking down the phrase, MPC literally means creating a function using our preference for spending or saving money.
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