Extracting Inflation from Stock Returns to Test Purchasing Power Parity

Relative purchasing power parity (PPP) holds for pure price inflations, which affect prices of all goods and services by the same proportion, while leaving relative prices unchanged. Pure price inflations also affect nominal returns of all traded financial assets by exactly the same amount. Recogniz...

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Veröffentlicht in:The American economic review 2005-03, Vol.95 (1), p.255-276
Hauptverfasser: Chowdhry, Bhagwan, Roll, Richard, Xia, Yihong
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container_title The American economic review
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creator Chowdhry, Bhagwan
Roll, Richard
Xia, Yihong
description Relative purchasing power parity (PPP) holds for pure price inflations, which affect prices of all goods and services by the same proportion, while leaving relative prices unchanged. Pure price inflations also affect nominal returns of all traded financial assets by exactly the same amount. Recognizing that relative PPP may not hold for the official inflation data constructed from commodity price indices because of relative price changes and other frictions that cause prices to be "sticky," we provide a novel method for extracting a proxy for realized pure price inflation from stock returns. We find strong support for relative PPP in the short run using the extracted inflation measures.
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source Jstor Complete Legacy; Business Source Complete; American Economic Association Web
subjects Capital market
Consumer Price Index
Economic models
Empirical research
Estimation
Exchange rates
Expectation
Financial assets
Foreign exchange rates
Germany
Inflation
Inflation rates
Japan
Methodology
Monetary economics
Monetary policy
Null hypothesis
P values
Point estimators
Price level
Prices
Purchasing power parity
Rates of return
Standard error
Stock prices
Stock returns
Studies
Time series
U.S.A
United Kingdom
title Extracting Inflation from Stock Returns to Test Purchasing Power Parity
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