1. Say whether you think the statement is true, false, or uncertain and support your answer in a few lines. a) A positive saving rate, s, implies that the capital stock grows over time. b) Because the federal government can always print additional money, it does not have a budget constraint. c) Governments can always gain more real revenue by raising the growth rate of the money stock. d) People's lifetime wealth must necessarily increase if their after-tax income rises when the government cuts their taxes and finances the tax cut by issuing debt. e) Ricardian equivalence points out that issuing debt to pay for cuts in lump-sum taxes creates a strong intertemporal substitution effect.