The concept of fiscal policy is based fundamentally on the ideas of ______.

John Maynard Keynes

The correct answer is Option 3 - John Maynard Keynes

The concept of fiscal policy is based fundamentally on the ideas of John Maynard Keynes

John Maynard Keynes is considered the father of modern macroeconomics and his theories heavily influenced the concept of fiscal policy. He argued that governments could use changes in taxation and spending to influence economic activity and achieve economic goals like full employment and price stability.