Final answer:
An increase in government spending of $50 billion, with a multiplier of 2, would lead to a total increase in real GDP of $100 billion.
Step-by-step explanation:
The increase in government spending of $50 billion, combined with a government spending multiplier of 2, would lead to a total increase in real GDP of $100 billion.
The multiplier effect occurs when an initial increase in spending leads to a larger increase in overall economic output. In this case, the government spending multiplier of 2 means that for every $1 increase in government spending, the overall real GDP increases by $2.
Therefore, a $50 billion increase in government spending would result in a $100 billion increase in real GDP.