scholarly journals Purchasing Power Parity and the Real Exchange Rate in Bangladesh: A Nonlinear Analysis

2007 ◽  
Vol 12 (1) ◽  
pp. 61-75 ◽  
Author(s):  
Ibrahim Chowdhury
Keyword(s):  
Exchange Rate ◽  
Nonlinear Analysis ◽  
Real Exchange Rate ◽  
Purchasing Power Parity ◽  
Purchasing Power ◽  
Power Parity ◽  
The Real

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.

scholarly journals The Validity of the Purchasing Power Parity Hypothesis for Kuwait

2016 ◽  
Vol 11 (1) ◽  
pp. 188
Author(s):  
Ebrahim Merza
Keyword(s):  
Exchange Rate ◽  
Real Exchange Rate ◽  
Purchasing Power Parity ◽  
Unit Roots ◽  
Purchasing Power ◽  
Power Parity ◽  
Monthly Data ◽  
The Real ◽  
The Us ◽  
Augmented Dickey Fuller

Many studies have tested the null hypothesis of the unit root of the real exchange rate to examine the validity of the purchasing power parity (PPP) hypothesis. Previous studies have reached different conclusions regarding that issue. This study tests the hypothesis of PPP in Kuwait using two tests of unit roots, the Augmented Dickey Fuller (ADF) and Phillips Perron (PP) tests. Using monthly data from 2006 to 2015, both tests reject the PPP hypothesis for the Kuwaiti economy. Using the components of the real exchange rate, we find that the levels of prices in both Kuwait and the US are not moving together to provide stationarity for the real exchange rate. This result could be attributed to the large increases in the prices of the housing and food and beverages sectors in Kuwait during that time.

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

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