Government Spending on PPE and the Increase in GDP

What is the total amount of expected increase in GDP resulting from the government spending $100 million on PPE with a Marginal Propensity to Consume of 0.8?

The total increase in GDP would be $500 million. In this scenario, the Government spending on PPE can be seen as an injection into the economy. The Marginal Propensity to Consume (MPC) of 0.8 means that 80% of the additional income generated will be spent, leading to further rounds of spending and income generation.

The Multiplier Effect

The concept of the multiplier effect plays a key role in understanding how government spending can stimulate economic growth. In this case, the multiplier is calculated using the formula:

Multiplier = 1 / (1 - MPC)

Substituting the given Marginal Propensity to Consume (MPC) value of 0.8 into the formula, we get:

Multiplier = 1 / (1 - 0.8) = 1 / 0.2 = 5

This means that for every dollar of government spending on PPE, the total increase in GDP will be 5 times that amount. Therefore, the total increase in GDP resulting from the $100 million spending on PPE would be:

5 x $100 million = $500 million

This demonstrates the impact of government spending as an injection into the economy, leading to a multiplied effect on GDP through increased consumption and economic activity.
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