scholarly journals The Purchasing Power Parity Hypothesis: Is there evidence from the Bilateral Real Exchange Rate between Mexico and the United States of America?

2012 ◽  
Vol 8 (2) ◽  
Author(s):  
NA Boamah
2021 ◽  
Vol 61 (1) ◽  
Author(s):  
Gabriela Bittencourt Gonzalez Mosegui ◽  
Fernando Antõnanzas ◽  
Cid Manso de Mello Vianna ◽  
Paula Rojas

Abstract Background The objective of this paper is to analyze the prices of biological drugs in the treatment of Rheumatoid Arthritis (RA) in three Latin American countries (Brazil, Colombia and Mexico), as well as in Spain and the United States of America (US), from the point of market entry of biosimilars. Methods We analyzed products authorized for commercialization in the last 20 years, in Brazil, Colombia, and Mexico, comparing them to the United States of America (USA) and Spain. For this analysis, we sought the prices and registries of drugs marketed between 1999 and October 1, 2019, in the regulatory agencies’ databases. The pricing between countries was based on purchasing power parity (PPP). Results The US authorized the commercialization of 13 distinct biologicals and four biosimilars in the period. Spain and Brazil marketed 14 biopharmaceuticals for RA, ten original, four biosimilars. Colombia and Mexico have authorized three biosimilars in addition to the ten biological ones. For biological drug prices, the US is the most expensive country. Spain’s price behavior seems intermediate when compared to the three LA countries. Brazil has the highest LA prices, followed by Mexico and Colombia, which has the lowest prices. Spain has the lowest values in PPP, compared to LA countries, while the US has the highest prices. Conclusion The economic effort that LA countries make to access these medicines is much higher than the US and Spain. The use of the PPP ensured a better understanding of the actual access to these inputs in the countries analyzed.


2011 ◽  
Vol 50 (4II) ◽  
pp. 379-399 ◽  
Author(s):  
Sunila Jabeen ◽  
Waseem Shahid Malik ◽  
Azad Haider

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


2012 ◽  
Vol 14 (1) ◽  
Author(s):  
Antonio Bojanic

This paper focuses on the use of silver as a monetary standard in Mexico during approximately the last three decades of the nineteenth century and the first decade of the twentieth century. During this period, several events occurred in the market for silver that affected those countries attached to this metal. These events caused some of these countries to abandon silver for good and adopt other types of monetary arrangements. Mexico and a few others chose to stay with it.The reasons behind this decision are analyzed. Additionally, evidence that supports the theory of purchasing power parity between Mexico and the United States is also presented and analyzed.


Author(s):  
Menzie D. Chinn

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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