scholarly journals Inflation and Exchange Rates: An International Examination of Relative Purchasing Power Parity

2021 ◽  
Vol 7 (3) ◽  
pp. p1
Author(s):  
Mehdi Monadjemi ◽  
John Lodewijks
Keyword(s):  
Exchange Rate ◽  
Purchasing Power Parity ◽  
Purchasing Power ◽  
Impulse Response Functions ◽  
Power Parity ◽  
Long Run ◽  
Short Run ◽  
Relative Version ◽  
Relative Ppp ◽  
Exchange Rate Changes

Purchasing power parity (PPP) is an old and controversial proposition in economic literature. It is based on the law of one price, which argues that, after adjusting for the exchange rate, domestic and foreign price levels are equal. The relative version of PPP argues that exchange rate changes depend on the differential between domestic and foreign inflation rates. The absolute PPP version is based on restrictive assumptions that prevent it to hold in the short run. However, several studies support the validity of the relative PPP proposition in the long run. It is often observed that countries with persistently high inflation experience weak currencies. Our empirical testing using impulse response functions derived from a VAR model for eight countries provide mixed results. In six out of eight selected countries, relative PPP is supported by data in the long run.

scholarly journals Long-Run and Short-Run Dynamics of the Exchange Rate in Pakistan: Evidence From Unrestricted Purchasing Power Parity Theory

2008 ◽  
Vol 13 (1) ◽  
Author(s):  
Muhammad Arshad Khan ◽  
Abdul Qayyum Abdul Qayyum
Keyword(s):  
Exchange Rate ◽  
Purchasing Power Parity ◽  
Nominal Exchange Rate ◽  
Purchasing Power ◽  
Power Parity ◽  
Speed Of Adjustment ◽  
Long Run ◽  
Short Run ◽  
The Exchange Rate ◽  
Long Run Equilibrium

The main focus of this paper is to measure the speed of adjustment of the exchange rate by means of the persistent profile approach developed by Pesaran and Shin (1996) to examine the symmetry and proportionality assumptions of the purchasing power parity (PPP) theory of exchange rates for the Pak-rupee vis-à-vis the US-dollar exchange rate over the period 1982Q2-2005Q4. Using cointegration and vector error-correction modeling approaches, we find considerable support for the validity of weak-form PPP in Pakistan. Furthermore, the symmetry and proportionality assumptions of PPP are not verified. In the short-run, the exchange rate and foreign prices play a significant role in the convergence process to achieve long-run equilibrium. However, the speed of adjustment is very slow and the persistence profiles suggest that almost 4-5 years are required to eliminate deviations and bring the nominal exchange rate in line with the long-run equilibrium path.

scholarly journals Extracting Inflation from Stock Returns to Test Purchasing Power Parity

2005 ◽  
Vol 95 (1) ◽  
pp. 255-276 ◽  
Author(s):  
Bhagwan Chowdhry ◽  
Richard Roll ◽  
Yihong Xia
Keyword(s):  
Stock Returns ◽  
Purchasing Power Parity ◽  
Strong Support ◽  
Commodity Price ◽  
Relative Price ◽  
Purchasing Power ◽  
Power Parity ◽  
Price Inflation ◽  
Short Run ◽  
Relative Ppp

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.

Purchasing power parity as a long-term memory process

2015 ◽  
Vol 10 (4) ◽  
pp. 711-725 ◽  
Author(s):  
Mohamed Bilel Triki ◽  
Samir Maktouf
Keyword(s):  
Exchange Rate ◽  
Purchasing Power Parity ◽  
Empirical Literature ◽  
Long Term Memory ◽  
Purchasing Power ◽  
Power Parity ◽  
Fractional Cointegration ◽  
Content Type ◽  
Long Run ◽  
The Usa

Purpose – The purpose of this paper is to focus on whether the deviations from the cointegrating relationship possess long memory and the fractional cointegration analyses may capture a wider range of mean-reversion behaviour than standard cointegration analyses. Design/methodology/approach – This paper uses a fractional cointegration technique to test the purchasing power parity (PPP). Findings – The authors found that PPP held, but very weakly, in the long run between the Argentine, Brazil, Chile, Colombia, Indonesia, Korea, Mexico, Thailand and Venezuela and US exchange rate during our floating exchange rate period but that the deviations from it did not follow a stationary process. Nevertheless, it is also found that the deviations from PPP exists and can be characterized by a fractionally integrated process in nine out of 13 countries studied. Originality/value – The findings are consistent with the consensus of the empirical literature, reviewed earlier in this paper, on PPP between Argentine, Brazil, Chile, Colombia, Indonesia, Korea, Mexico, Thailand and Venezuela and the USA.

scholarly journals Testing the Harrod Balassa Sameulson Hypothesis: The Case of Pakistan.

2011 ◽  
Vol 50 (4II) ◽  
pp. 379-399 ◽  
Author(s):  
Sunila Jabeen ◽  
Waseem Shahid Malik ◽  
Azad Haider
Keyword(s):  
Exchange Rate ◽  
Real Exchange Rate ◽  
Open Economy ◽  
Purchasing Power Parity ◽  
Control Variable ◽  
Policy Implications ◽  
Purchasing Power ◽  
Power Parity ◽  
Long Run ◽  
Tradable Sector

For a small open economy of Pakistan, exchange rate is determined through the two alternative theories; the nominal theory of exchange rate named by Purchasing Power Parity (PPP) and the real theory known as Harrod Balassa Sameulson (HBS). According to the requirements of theories, two kinds of real exchange rate have been employed for the yearly data of 1972-2008. As, both of the theories are disputed at the ground of their long run relationship with real exchange rate, therefore, the VAR based Johenson Co-integration approach has been utilised to see the long run relationships. PPP has shown less satisfactory results either in its form of absolute version or relative version. Because, real exchange rate in Pakistan is a non-stationary process by Augmented Dickey Fuller unit-root test, predicting some pushing force behind the non-tradable sector. While favouring the PPP in tradable sector, the ADF and KPSS are indicating the presence of the HBS in Pakistan. On the other hand, the analysis of the HBS through co-integration is showing that relative productivity difference has an opposite relationship with relative non-tradable sector prices and with RER. However, the relationship between relative non-tradable sector prices and RER is much stronger and according to the theory. So, there have been incorporated some demand side and external factors to reduce the mis-specification of the simple HBS model. Therefore, in the extended HBS model, productivity difference, government consumption expenditure, terms of trade and world oil prices are appreciating the RER and money supply (a control variable) is pursuing depreciation in RER. So, these results yield some policy implications for Pakistan which can be useful for developing countries as well. JEL classification: E0, E31, E44 Keywords: Harrod-Balassa-Samuelson, Exchange Rate, Purchasing Power Parity, Pakistan

scholarly journals Market Efficiency and Long Run Purchasing Power Parity Disequilibria of the Mexican Peso Under Changing Exchange Rate Regimes

2004 ◽  
Author(s):  
Alejandra Cabello ◽  
Edgar Iván Ortiz ◽  
Robert I. Johnson
Keyword(s):  
Exchange Rate ◽  
Market Efficiency ◽  
Purchasing Power Parity ◽  
Inflation Targeting ◽  
Structural Changes ◽  
Exchange Rate Regimes ◽  
Purchasing Power ◽  
Power Parity ◽  
Macroeconomic Policies ◽  
Long Run

This paper tests if the efficient market version of Purchasing Power Parity (EMPPP) holds for the Mexican case for the 1970-2002 period in an environment of changing exchange rate regimes. Two regression analyses which extend PPP to a dynamic intertemporal model, based on market efficiency, are used, and in addition two unit root tests are applied. In general, the obtained empirical evidence does not support the EMPPP. Results suggest an inefficient market resulting from weak exchange rate policies and weak adoptions of several exchange rate regimes without proper inflation targeting and the application of strong and disciplined macroeconomic policies and structural changes.  

Purchasing Power Parity and Real Exchange Rates

2019 ◽  
Author(s):  
Menzie D. Chinn
Keyword(s):  
Exchange Rate ◽  
Exchange Rates ◽  
Real Exchange Rate ◽  
Purchasing Power Parity ◽  
Time Horizon ◽  
Nominal Exchange Rate ◽  
Purchasing Power ◽  
Power Parity ◽  
The Real ◽  
Short Run

The idea that prices and exchange rates adjust so as to equalize the common-currency price of identical bundles of goods—purchasing power parity (PPP)—is a topic of central importance in international finance. If PPP holds continuously, then nominal exchange rate changes do not influence trade flows. If PPP does not hold in the short run, but does in the long run, then monetary factors can affect the real exchange rate only temporarily. Substantial evidence has accumulated—with the advent of new statistical tests, alternative data sets, and longer spans of data—that purchasing power parity does not typically hold in the short run. One reason why PPP doesn’t hold in the short run might be due to sticky prices, in combination with other factors, such as trade barriers. The evidence is mixed for the longer run. Variations in the real exchange rate in the longer run can also be driven by shocks to demand, arising from changes in government spending, the terms of trade, as well as wealth and debt stocks. At time horizon of decades, trend movements in the real exchange rate—that is, systematically trending deviations in PPP—could be due to the presence of nontraded goods, combined with real factors such as differentials in productivity growth. The well-known positive association between the price level and income levels—also known as the “Penn Effect”—is consistent with this channel. Whether PPP holds then depends on the time period, the time horizon, and the currencies examined.

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