## Introductie

Which is the richest country in the world, which is the poorest? Instead of looking at the amount of money there is in a country we can also look at the quality of life. Quality of life is measured by looking at:
1. Life expectancy

2. Purchasing power

3. Literacy rate

The purchasing power has to do with how much you can buy with your money. Or to say it in a more scientific way: How much you can buy for 1 US Dollar.

There are a lot of ways to descibe this. One way, and quit a funny way, is using the Big Mac index.

The index is regarded as an indicator for the purchasing power of an economy. The average price for a Big Mac burger in Switzerland was 6.62 U.S. dollars in January 2019.

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 a 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. Its global revenue amounted to about 21.03 billion U.S. dollars in 2018. Most McDonald restaurants are spread across the United States.

The Bic Mac index https://www.youtube.com/watch?v=_vCK6QZTVlc

Literacy Rate

The Litaracy rate shows how many people above 15 can read and write.