At **** U.S. dollars, Switzerland has the most expensive Big Macs in the world, according to the January 2025 Big Mac index. Concurrently, the cost of a Big Mac was **** dollars in the U.S., and **** U.S. dollars in the Euro area. What is the Big Mac index? The Big Mac index, published by The Economist, is a novel way of measuring whether the market exchange rates for different countries’ currencies are overvalued or undervalued. It does this by measuring each currency against a common standard – the Big Mac hamburger sold by McDonald’s restaurants all over the world. Twice a year the Economist converts the average national price of a Big Mac into U.S. dollars using the exchange rate at that point in time. As a Big Mac is a completely standardized product across the world, the argument goes that it should have the same relative cost in every country. Differences in the cost of a Big Mac expressed as U.S. dollars therefore reflect differences in the purchasing power of each currency. Is the Big Mac index a good measure of purchasing power parity? Purchasing power parity (PPP) is the idea that items should cost the same in different countries, based on the exchange rate at that time. This relationship does not hold in practice. Factors like tax rates, wage regulations, whether components need to be imported, and the level of market competition all contribute to price variations between countries. The Big Mac index does measure this basic point – that one U.S. dollar can buy more in some countries than others. There are more accurate ways to measure differences in PPP though, which convert a larger range of products into their dollar price. Adjusting for PPP can have a massive effect on how we understand a country’s economy. The country with the largest GDP adjusted for PPP is China, but when looking at the unadjusted GDP of different countries, the U.S. has the largest economy.
As of January 2025, Argentina had the highest Big Mac Index and Guatemala, the lowest, among the Latin American countries measured. The so-called Big Mac Index is regarded as an indicator for the purchasing power of an economy. In Guatemala, it was estimated that a Big Mac would cost an average of 4.01 U.S. dollars, while the average price for a Big Mac burger in Brazil amounted to approximately 4.03 U.S. dollars. How is the Big Mac Index calculated?The Bic Mac index has been published annually by The Economist since 1986 and is rated as a simplified indicator of a country’s individual purchasing power. As many countries have different currencies, the standardized Big Mac prices are calculated by converting the average national Big Mac prices with the latest exchange rate to U.S. dollars. The Big Mac, as the top-selling McDonald’s burger, is used for comparison because it is available in almost every country and manufactured in a standardized size, composition and quality.McDonald's in Latin AmericaMcDonald’s is a worldwide operating fast food restaurant chain with headquarters in Oak Brook, Illinois. In Latin America, McDonald's largest franchisee is Arcos Dorados Holdings, with headquarters in Montevideo, Uruguay. Brazil is the largest Latin American market for McDonald's when it comes to the size of the franchise network, as over 1,000 McDonald's restaurants are in operation in the Brazilian territory.
The so-called Big Mac index is regarded as an indicator for the purchasing power of an economy. The average price for a Big Mac burger in Mexico was estimated at 4.6 U.S. dollars in January 2025. Due to the high increases during the last few years, the Big Mac burger price became one of the highest in Latin America. Big Mac Index The Bic Mac index has been published annually by The Economist since 1986 and is rated as a simplified indicator of a country’s individual purchasing power. As many countries have different currencies, the standardized Big Mac prices are calculated by converting the average national Big Mac prices with the latest exchange rate to U.S. dollars.The Big Mac, as the top-selling McDonald’s burger, is used for comparison because it is available in almost every country and manufactured in a standardized size, composition and quality. McDonald’s is a worldwide operating fast food restaurant chain with headquarters in Oak Brook, Illinois. In Latin America, McDonald's largest franchisee is Arcos Dorados Holdings, with headquarters in Montevideo, Uruguay. Power Purchasing Parity This conversion endeavor seeks to level the purchasing power disparities among nations by neutralizing price discrepancies. Notably, in Mexico, the Purchasing Power Parity (PPP) has demonstrated a consistent upward trajectory, yielding positive repercussions on the minimum wage for the labor force. This, in turn, has triggered a favorable effect on the affordability of the essential food basket. Furthermore, this upswing has propelled five major Mexican cities into the upper positions of PPP rankings within Latin America. Consequently, Mexico now stands as the 15th largest global economy, a status achieved despite a slight, yet steady, decline in its share of the global GDP, which is adjusted according to PPP metrics.
In 2024, Brazil was the sixth Latin American country where buying a Big Mac was the most expensive. The so-called Big Mac index is regarded as an indicator for the purchasing power of an economy. The average price for a Big Mac burger in Brazil was estimated at **** U.S. dollars in January 2024, an increase in price in comparison to the previous year. In the past decade, the Big Mac index in Brazil went below the * dollar threshold in January 2016. Big Mac IndexThe Bic Mac index has been published annually by The Economist since 1986 and is rated as a simplified indicator of a country’s individual purchasing power. As many countries have different currencies, the standardized Big Mac prices are calculated by converting the average national Big Mac prices with the latest exchange rate to U.S. dollars.The Big Mac, as the top-selling McDonald’s burger, is used for comparison because it is available in almost every country and manufactured in a standardized size, composition and quality. McDonald’s is a worldwide operating fast food restaurant chain with headquarters in Oak Brook, Illinois. In Latin America, McDonald's largest franchisee is Arcos Dorados Holdings, with headquarters in Montevideo, Uruguay.
The so-called Big Mac index is regarded as an indicator for the purchasing power of an economy. The average price for a Big Mac burger in Colombia was estimated at **** U.S. dollars in January 2025. Colombia price for a Big Mac is among the four highest in Latin America. Big Mac IndexThe Bic Mac index has been published annually by The Economist since 1986 and is rated as a simplified indicator of a country’s individual purchasing power. As many countries have different currencies, the standardized Big Mac prices are calculated by converting the average national Big Mac prices with the latest exchange rate to U.S. dollars.The Big Mac, as the top-selling McDonald’s burger, is used for comparison because it is available in almost every country and manufactured in a standardized size, composition and quality. McDonald’s is a worldwide operating fast food restaurant chain with headquarters in Oak Brook, Illinois. In Latin America, McDonald's largest franchisee is Arcos Dorados Holdings, with headquarters in Montevideo, Uruguay. Inflation in Colombia Over the past two decades, Colombia has generally seen a decline in the inflation rate, with a small upward trend as of 2023, reaching ***** percent. However, there are forecasts indicating a steady decline in the inflation rate for the next five years. In the year 2024, the annual inflation rate has been lower compared to previous years, particularly in the sector of information and communication, which recorded a negative inflation rate of *** percent, This has placed Colombia at the fifth position among Latin American countries with the highest annual inflation rate in comparison to previous years as of 2023.
The so-called Big Mac index is regarded as an indicator for the purchasing power of an economy. In Costa Rica, the average price for a Big Mac burger was estimated at *** U.S. dollars in January 2025. Costa Rica price for a Big Mac is among the highest in Latin America, only behind Uruguay and Argentina. Big Mac IndexThe Big Mac index has been published annually by The Economist since 1986 and is rated as a simplified indicator of a country’s individual purchasing power. As many countries have different currencies, the standardized Big Mac prices are calculated by converting the average national Big Mac prices with the latest exchange rate to U.S. dollars.The Big Mac, as the top-selling McDonald’s burger, is used for comparison because it is available in almost every country and manufactured in a standardized size, composition and quality. McDonald’s is a worldwide operating fast food restaurant chain with headquarters in Oak Brook, Illinois. In Latin America, McDonald's largest franchisee is Arcos Dorados Holdings, with headquarters in Montevideo, Uruguay.
Inflation in Costa Rica Costa Rica ranks in the middle table of Latin American countries with the highest inflation rates, nonetheless, in the Central American region it’s only behind Honduras. During 2022, the inflation rate of Costa Rica was ****, after many years of low rates, the global inflation crisis accelerated the price increases in the country. Some sectors were impacted more heavily than others, in June 2023, the industry with the highest Consumer Price Index (CPI) was food and non-alcoholic beverages, in contrast, the communications sector presented the lowest.
Data and methodology for the Big Mac index https://www.economist.com/news/2018/07/11/the-big-mac-index.
Updated yearly, with data from 1986 to 2019.
big-mac-raw-index.csv
contains values for the “raw” indexbig-mac-adjusted-index.csv
contains values for the “adjusted” indexbig-mac-full-index.csv
contains bothvariable | definition | source |
---|---|---|
date | Date of observation | |
iso_a3 | Three-character [ISO 3166-1 country code][iso 3166-1] | |
currency_code | Three-character [ISO 4217 currency code][iso 4217] | |
name | Country name | |
local_price | Price of a Big Mac in the local currency | McDonalds; The Economist |
dollar_ex | Local currency units per dollar | Reuters |
dollar_price | Price of a Big Mac in dollars | |
USD_raw | Raw index, relative to the US dollar | |
EUR_raw | Raw index, relative to the Euro | |
GBP_raw | Raw index, relative to the British pound | |
JPY_raw | Raw index, relative to the Japanese yen | |
CNY_raw | Raw index, relative to the Chinese yuan | |
GDP_dollar | GDP per person, in dollars | IMF |
adj_price | GDP-adjusted price of a Big Mac, in dollars | |
USD_adjusted | Adjusted index, relative to the US dollar | |
EUR_adjusted | Adjusted index, relative to the Euro | |
GBP_adjusted | Adjusted index, relative to the British pound | |
JPY_adjusted | Adjusted index, relative to the Japanese yen | |
CNY_adjusted | Adjusted index, relative to the Chinese yuan |
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In 2025, a Big Mac was estimated to cost an average of 4.12 U.S. dollars in McDonald's restaurants located in Honduras. The price went down one cent of a dollar in comparison to the previous year. Guatemala is the Latin American country with the lowest Big Mac index.
The average price for a Big Mac burger in Peru was estimated at 4.53 U.S. dollars in January 2025. The so-called Big Mac index is regarded as an indicator for the purchasing power of an economy. Buying a Big Mac in Peru is cheaper than, for instance, in neighboring Chile. Big Mac IndexThe Bic Mac index has been published annually by The Economist since 1986 and is rated as a simplified indicator of a country’s individual purchasing power. As many countries have different currencies, the standardized Big Mac prices are calculated by converting the average national Big Mac prices with the latest exchange rate to U.S. dollars.The Big Mac, as the top-selling McDonald’s burger, is used for comparison because it is available in almost every country and manufactured in a standardized size, composition and quality. McDonald’s is a worldwide operating fast food restaurant chain with headquarters in Oak Brook, Illinois. In Latin America, McDonald's largest franchisee is Arcos Dorados Holdings, with headquarters in Montevideo, Uruguay.
Inflation in Peru After two years of hyperinflation in 1989 and 1990, the inflation rate of Peru slowed down until 2022, following the trend of the global inflation crisis. Nonetheless, the Andean country still ranks in the middle of the table of Latin American countries with the highest inflation rate during that same year and remains with significantly lower price increases than the region’s average. Some sectors are more impacted than others, the category with the highest price increases as of September 2023, were food and non-alcoholic beverages, in contrast, the housing and housing services sector presented a slight deflation during the same period.
In January 2025, it was estimated that a Big Mac burger in Argentina would cost an average of 6.95 U.S. dollars. Overall, Argentina ranked with the highest price for a Big Mac in selected Latin American countries. The Big Mac Index in Argentina The Big Mac Index is an indicator that measures an economy's purchasing power. As it is mainly a standardized product, elaborated similarly across many markets, the evolution of its cost can provide insights into variations of real consumption prices in a given country. For instance, the price for a Big Mac in Argentina decreased by almost half from 2018 to 2019. This reflects Argentina's peso devaluation in comparison to the U.S. dollar and other foreign currencies in that period, caused by high inflation rates in the country, among other macroeconomic reasons. McDonald's in Latin America Arcos Dorados Holdings Inc. is McDonald's franchisee in Latin America. The company's name was inspired by McDonald's famous logo, as 'Arcos Dorados' means 'Golden Arches' in Spanish. It manages the brand's operations in Mexico, Central America, the Caribbean, and South America. Arcos Dorados’ revenue averages three billion U.S. dollars per year, making it McDonald's largest franchisee in the world. The company is also publicly listed in the New York Stock Exchange. Based on its market capitalization value, Arcos Dorados' net worth was estimated at around 1.64 billion U.S. dollars in 2023.
The so-called Big Mac index is regarded as an indicator for the purchasing power of an economy. In 2025, the average price for a Big Mac burger in Chile was estimated at 4.55 U.S. dollars. Big Mac IndexThe Bic Mac index has been published annually by The Economist since 1986 and is rated as a simplified indicator of a country’s individual purchasing power. As many countries have different currencies, the standardized Big Mac prices are calculated by converting the average national Big Mac prices with the latest exchange rate to U.S. dollars.The Big Mac, as the top-selling McDonald’s burger, is used for comparison because it is available in almost every country and manufactured in a standardized size, composition, and quality. McDonald’s is a worldwide operating fast food restaurant chain with headquarters in Oak Brook, Illinois. In Latin America, McDonald's largest franchisee is Arcos Dorados Holdings, with headquarters in Montevideo, Uruguay.
Inflation in Chile During 2022, the inflation rate of Chile was 11.25 percent, in general, price increases in the South American country remained low from 2009 to 2021. Nonetheless, with the global inflation crisis in the following years the rate increased significantly. Still, Chile remains with an inflation lower than the Latin America average. Moreover, price increases have been impacting sectors differently, in June 2023, the industry with the highest inter-annual Consumer Price Index (CPI) was alcoholic beverages and tobacco, in contrast, the communications sector recorded a slight deflation.
In 2025, a Big Mac was estimated to cost an average of 4.48 U.S. dollars in McDonald's restaurants located in Nicaragua. The price went up 14 cents of a dollar in comparison to the previous year. In fact, since the beginning of the mentioned period, the price of a Big Mac has been continuously increasing. Argentina is the Latin American country with the highest Big Mac index.
The so-called Big Mac index is regarded as an indicator for the purchasing power of an economy. The average price for a Big Mac burger in Uruguay was estimated at **** U.S. dollars in January 2025. In comparison to the value registered a year earlier, this represents a considerable increase. In Latin America, Uruguay had the highest price for a Big Mac in 2024. Big Mac IndexThe Bic Mac index has been published annually by The Economist since 1986 and is rated as a simplified indicator of a country’s individual purchasing power. As many countries have different currencies, the standardized Big Mac prices are calculated by converting the average national Big Mac prices with the latest exchange rate to U.S. dollars.The Big Mac, as the top-selling McDonald’s burger, is used for comparison because it is available in almost every country and manufactured in a standardized size, composition and quality. McDonald’s is a worldwide operating fast food restaurant chain with headquarters in Oak Brook, Illinois. In Latin America, McDonald's largest franchisee is Arcos Dorados Holdings, with headquarters in Montevideo, Uruguay.
In 2025, a Big Mac was estimated to cost an average of 4.01 U.S. dollars in McDonald's restaurants located in Guatemala. Costa Rica is one of the Latin American countries where the price of a Big Mac is at its highest, while Guatemala recorded the lowest price in the region.
In January 2025, the price of a McDonald's Big Mac sandwich in Israel stood at **** U.S. dollars. By comparison, the price of a Big Mac in the Euro Area stood at **** U.S. dollars, and **** U.S. dollars in the United States. The Big Mac index is regarded as an indicator for the purchasing power parity (PPP) of global currencies. Since 2010, the price of Big Macs in Israel, as expressed in U.S. dollars, has trended upwards.
This statistic shows the average working time required to buy one Big Mac in selected cities around the world in 2018. In Nairobi, the average worker had to work for about ***** minutes to be able to purchase a Big Mac. The average wages garnered in select countries around the world based on purchasing power can be accessed here. Additional information on the Big Mac Index The Big Mac index is a tongue-in-cheek measure of purchasing power parity (PPP) created by The Economist. The index gained global attention among economists and other analysts of global economic conditions due to its relative degree of accuracy in predicting purchasing power parity among countries. In attempting to include wage differentials rankings that seek to measure how fast one can earn the money required to purchase a Big Mac incorporate average wages. In theory, the result should correlate to the ranking of average world wages adjusted for PPP. The Big Mac index is open to criticism as it is unable to take certain factors that may result in the price of a Big Mac fluctuating between countries. For example, the hospitality industry, including McDonalds, tends to employ large numbers of people on or close to the minimum wage. This is shown by the percentage of workers paid hourly rates with earnings at or below the minimum wage in the U.S., by industry. As a result differing levels of the minimum wage may lead McDonalds to charge a comparably higher amount for a Big Mac in that country.
Am teuersten bleibt der Big Mac in der Schweiz - auch im Januar 2025 muss man nach dem sogenannten Big-Mac-Index durchschnittlich rund 7,99 US-Dollar für einen Big Mac in der Schweiz bezahlen und damit mehr als in jedem anderen Land der Welt. Der Preis für einen Big Mac in der Schweiz ist gegenüber dem Preis von Juli 2024 um rund 0,08 US-Dollar gesunken. Wo gibt es den billigsten Big Mac der Welt? In Taiwan ist der Big Mac im Januar 2025 weltweit am günstigsten: Für einen Big Mac müssen Taiwaner:innen im Januar 2025 nur rund 2,38 US-Dollar bezahlen, im Juli 2024 sind es noch rund 0,1 US-Dollar weniger gewesen. In Europa ist der Big Mac in der Ukraine mit rund 2,86 US-Dollar am günstigsten. In der Eurozone muss man im Januar 2025 durchschnittlich 5,95 US-Dollar für einen Big Mac bezahlen und somit rund 11 US-Cent weniger als vor 6 Monaten. Vor dem russischen Überfall auf die Ukraine wurde der weltweit günstigste Big Mac in Russland verkauft. Rund 1,74 US-Dollar mussten Russen im Januar 2022 für einen Big Mac bezahlen, und jetzt? Was kostet ein Big Mac in Russland? Nichts, denn in Russland gibt es seit Mai 2022 keinen Big Mac mehr. McDonald's hat sich im Mai 2022 wegen des völkerrechtswidrigen russischen Überfalls auf die Ukraine komplett aus Russland zurückgezogen und alle Filialen verkauft. Mit Alexander Gowor hat sich aber schnell ein patriotischer kremltreuer Oligarch gefunden, um in dieser Angelegenheit nationaler Tragweite die Filialen sämtlich zu übernehmen und - sozialistisch pragmatisch - unter dem innovativen neuen Namen Wkusno i totschka (lecker und Punkt) wiederzueröffnen. Nur den Big Mac kann man wegen der Markenrechte leider nicht anbieten und somit wird Russland wohl auf absehbare Zeit nicht mehr im Big-Mac-Index vertreten sein. Breaking News - Verkaufsstart der Big-Mac-Kopie in Russland Nach gut 10 Monaten Entwicklungsarbeit hat das Science Lab von Wkusno i totschka bewiesen, was der Forschungsstandort Russland zu leisten vermag und Anfang März den "Big Hit" in seinen "lecker und Punkt-Filialen" eingeführt. Es soll sich um eine "verbesserte" Version des Big Mac handeln, allerdings lassen erste Reaktionen von Kunden darauf schließen, dass dies nicht ganz gelungen ist. Aber zumindest der Preis ist mit 186 Rubel, also derzeit (Februar 2025), mit rund 2,10 US-Dollar lecker und Punkt. Bis zum Rückzug der Konzernmutter McDonald's belegte Russland übrigens mit rund 800 Filialen im Ranking der Länder mit den meisten McDonald's Restaurants den zehnten Platz. Was ist der Big-Mac-Index und wie funktioniert er? Der Big-Mac-Index ist ein leicht verständlicher Indikator, der für den Kaufkraftvergleich von Ländern entwickelt wurde. Dieser Indikator wurde 1986 von der britischen Wochenzeitung „The Economist“ erfunden und wird halbjährlich im Januar und Juli jeden Jahres aktualisiert. Die Idee des Economist war, dass es überall auf der Welt McDonald's gibt und der Big Mac in jeder Filiale des Schnellrestaurants weltweit in standardisierter Größe, Zusammensetzung und Qualität verkauft wird. Der Erfolg des Indikators beruht auf seiner Einfachheit und darauf, dass der Big Mac wie auch McDonald's einen sehr hohen Bekanntheitsgrad haben – jeder hat schon von McDonald's und Big Mac gehört. Es handelt sich also um ein standardisiertes Produkt, das weltweit bekannt ist und konsumiert wird. Für den Preisvergleich wird der Preis für einen Big Mac in der jeweiligen Landeswährung zum aktuellen US-Dollar-Kurs umgerechnet. Je höher der umgerechnete Preis ist, desto höher wird auch die Kaufkraft im jeweiligen Land eingeschätzt. Je niedriger der umgerechnete Big Mac Preis ist, desto geringer wird die jeweilige Kaufkraft im Land eingeschätzt. Preisniveau in der Europäischen Union Zwischen den 27 Mitgliedstaaten der Europäischen Union (EU) gibt es deutliche Unterschiede im Preisniveau, was aus der Angabe des Big-Mac-Index für die Eurozone nicht direkt ersichtlich ist. Der Preisniveauindex für Verbrauchsgüter und Dienstleistungen in der Europäischen Union bietet hingegen einen detaillierten Vergleich. Während die Verbraucherpreise in Dänemark rund 38 Prozent über dem EU-Durchschnitt liegen, muss man in Bulgarien derzeit nur rund halb so viel für Verbrauchsgüter und Dienstleistungen aufwenden.
El índice Big Mac es un indicador basado en el precio de una hamburguesa Big Mac en todo el mundo y refleja el poder adquisitivo de una economía. En 2023, el precio promedio más alto de una Big Mac en América Latina fue de 7,04 dólares estadounidenses, registrado en Uruguay. En la tercera posición se encuentra el país vecino, Argentina, donde el valor de la hamburguesa fue de 5,19 dólares. ¿Cómo se calcula el Índice Big Mac?El índice Big Mac es publicado por The Economist desde 1986 y es un indicador simplificado del poder adquisitivo de un país, ya que se calcula comparando los precios de una hamburguesa Big Mac en una gran cantidad de naciones. Para hacer la comparación, se utiliza la hamburguesa Big Mac, que es uno de los principales productos de McDonald's, porque está disponible en casi todos los países y se fabrica en tamaño, composición y calidad estándares.McDonald's en LatinoaméricaMcDonald’s es una cadena de restaurantes de comida rápida que opera a nivel mundial. En América Latina, McDonald's realiza la mayor parte de sus operaciones bajo la empresa Arcos Dorados Holdings, cuya sede está en Montevideo, Uruguay. El mayor mercado latinoamericano de esta marca es Brasil, donde McDonald's cuenta con una red de alrededor de 1.000 restaurantes.
The US dollar index of February 2025 was higher than it was in 2024, although below the peak in late 2022. This reveals itself in a historical graphic on the past 50 years, measuring the relative strength of the U.S. dollar. This metric is different from other FX graphics that compare the U.S. dollar against other currencies. The history of the DXY Index The index shown here – often referred to with the code DXY, or USDX – measures the value of the U.S. dollar compared to a basket of six other foreign currencies. This basket includes the euro, the Swiss franc, the Japanese yen, the Canadian dollar, the British pound, and the Swedish króna. The index was created in 1973, after the arrival of the petrodollar and the dissolution of the Bretton Woods Agreement. Today, most of these currencies remain connected to the United States' largest trade partners. The relevance of the DXY Index The index focuses on trade and the strength of the U.S. dollar against specific currencies. It less on inflation or devaluation, which is measured in alternative metrics like the Big Mac Index. Indeed, as the methodology behind the DXY Index has only been updated once – when the euro arrived in 1999 – some argue this composition is not accurate to the current state of the world. The price development of the U.S. dollar affects many things, including commodity prices in general.
In 2023, the United States accounted for 15.56 percent of global gross domestic product (GDP) after adjusting for purchasing power parity (PPP). This share was expected to decrease to 14.72 percent by 2029, which is roughly a seventh of the global total. What is PPP? The easiest way to understand purchasing power parity is the Big Mac Index, a measure developed by The Economist. The index tracks the price of the McDonald’s Big Mac burger, sold at each of its thousands of restaurants worldwide. Countries where the Big Mac is most expensive have higher purchasing power, meaning one can buy more for each unit of that currency. To calculate PPP, economists use a group of goods to calculate the ratio of the price of this group in each country. This ratio is then used to convert all countries into a standardized price level, on parity with each other. Why use PPP? A U.S. dollar in the United States does not have the same purchasing power as a dollar in China, even after considering the exchange rate. For this reason, adjusting for PPP gives an idea of what the rest of the world could buy in the United States, if prices were the same as in their home country. However, some economists argue that using PPP for comparisons between countries is inaccurate because it changes the price level differently for each country. Still, because it accounts not only for country-specific effects but also inflation and exchange rate fluctuations, PPP is a very popular metric.
At **** U.S. dollars, Switzerland has the most expensive Big Macs in the world, according to the January 2025 Big Mac index. Concurrently, the cost of a Big Mac was **** dollars in the U.S., and **** U.S. dollars in the Euro area. What is the Big Mac index? The Big Mac index, published by The Economist, is a novel way of measuring whether the market exchange rates for different countries’ currencies are overvalued or undervalued. It does this by measuring each currency against a common standard – the Big Mac hamburger sold by McDonald’s restaurants all over the world. Twice a year the Economist converts the average national price of a Big Mac into U.S. dollars using the exchange rate at that point in time. As a Big Mac is a completely standardized product across the world, the argument goes that it should have the same relative cost in every country. Differences in the cost of a Big Mac expressed as U.S. dollars therefore reflect differences in the purchasing power of each currency. Is the Big Mac index a good measure of purchasing power parity? Purchasing power parity (PPP) is the idea that items should cost the same in different countries, based on the exchange rate at that time. This relationship does not hold in practice. Factors like tax rates, wage regulations, whether components need to be imported, and the level of market competition all contribute to price variations between countries. The Big Mac index does measure this basic point – that one U.S. dollar can buy more in some countries than others. There are more accurate ways to measure differences in PPP though, which convert a larger range of products into their dollar price. Adjusting for PPP can have a massive effect on how we understand a country’s economy. The country with the largest GDP adjusted for PPP is China, but when looking at the unadjusted GDP of different countries, the U.S. has the largest economy.