Who is the most famous "supply-side" economist, who even has a graph named after him? Group of answer choices John Keynes. Arthur Laffer. Milton Friedman. Robert Lucus.How does the supply-side school of macroeconomics differ from the Keynesian school in analyzing the effect of taxes on the macroeconomy? Group of answer choices It doesn't really. They both focus on how changing taxes changes the decision to produce and sell. It doesn't really. They both focus on how changing taxes changes the decision to buy. Supply siders concentrate on how taxes affect the choice to buy and Keynesians on the choice to produce. Supply siders concentrate on how taxes affect the choice to produce and Keynesians on the choice to buy