TY  - JOUR
AU  - Auerbach,Alan J.
AU  - Obstfeld,Maurice
TI  - The Case for Open-Market Purchases in a Liquidity Trap
JF  - National Bureau of Economic Research Working Paper Series
VL  - No. 9814
PY  - 2003
Y2  - July 2003
UR  - http://www.nber.org/papers/w9814
L1  - http://www.nber.org/papers/w9814.pdf
N1  - Author contact info:
Alan J. Auerbach
Department of Economics
508-1 Evans Hall, #3880
University of California, Berkeley
Berkeley, CA 94720-3880
Tel: 510/643-0711
Fax: 510/643-0413
E-Mail: auerbach@econ.berkeley.edu

Maurice Obstfeld
Department of Economics
University of California, Berkeley
530 Evans Hall #3880
Berkeley, CA 94720-3880
Tel: 510/643-9646
Fax: 510/642-6615
E-Mail: obstfeld@econ.berkeley.edu
AB  - 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.
ER  -