Please use this identifier to cite or link to this item: https://hdl.handle.net/10419/210640 
Year of Publication: 
2020
Series/Report no.: 
Economics Discussion Papers No. 2020-2
Publisher: 
Kiel Institute for the World Economy (IfW), Kiel
Abstract: 
This study revisits and tests empirically the Portfolio Theory of Inflation (PTI), which analyzes how the effectiveness of macroeconomic policy in open and globally financially integrated economies is influenced by global investor decisions (Bossone, The portfolio theory of inflation and policy (in)effectiveness, 2019). The PTI shows that when an economy is heavily indebted and is perceived by the market to be poorly credible, investors hold it to a tighter intertemporal budget constraint and policies aimed to stimulate output growth dissipate into domestic currency depreciation and higher inflation, with limited or no impact on output, or with lower output and lower inflation. On the other hand, markets afford highly credible economies much greater space for effective and noninflationary macro policies. The study leads to a very basic advice: policymakers of an internationally highly integrated economy should keep public liabilities (the stock of both central bank money and public debt) at low levels: the larger the liabilities, the higher the degree of surrender of the country's national policy sovereignty to external forces and interests.
Subjects: 
credibility
exchange rate
financial integration
fiscal and monetary policies
global investor(s)
inflation
intertemporal budget constraint
policy effectiveness
public debt
JEL: 
E31
E4
E5
E62
F31
G15
H3
Creative Commons License: 
cc-by Logo
Document Type: 
Working Paper

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