Short Answer

Shifts in Autonomous Investment

Suppose the aggregate investment in an economy is initially described by the function I = 1000 - 50r, where I is total investment in billions of dollars and r is the interest rate in percent. A major technological breakthrough significantly boosts business confidence, causing firms to increase their planned investment by $200 billion at every interest rate level. What is the new aggregate investment function?

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Updated 2025-10-08

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