The Case for Open Market Purchases in a Liquidity Trap

Working Paper: NBER ID: w9814

Authors: Alan J. Auerbach; Maurice Obstfeld

Abstract: Prevalent thinking about liquidity traps suggests that the perfect substitutability of money and bonds at a zero short-term nominal interest rate renders open-market operations ineffective for achieving macroeconomic stabilization goals. We show that even were this the case, there remains a powerful argument for large-scale open market operations as a fiscal policy tool. As we also demonstrate, however, this same reasoning implies that open-market operations will be beneficial for stabilization as well even when the economy is expected to remain mired in a liquidity trap for some time. Thus, the microeconomic fiscal benefits of open-market operations in a liquidity trap go hand in hand with standard macroeconomic objectives. Motivated by Japan's recent economic experience, we use a dynamic general-equilibrium model to assess the welfare impact of open-market operations for an economy in Japan's predicament. We argue Japan can achieve a substantial welfare improvement through large open-market purchases of domestic government debt.

Keywords: No keywords provided

JEL Codes: E43; E52; E63


Causal Claims Network Graph

Edges that are evidenced by causal inference methods are in orange, and the rest are in light blue.


Causal Claims

CauseEffect
open market operations (E52)fiscal health (H68)
open market operations (E52)reduction in real value of public debt (H63)
reduction in real value of public debt (H63)decrease in future tax burdens (H29)
open market operations (E52)macroeconomic stability (E60)
open market operations (E52)price stabilization (E64)

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