The Economist used a very interesting way to compare the exchange rate between different countries in the world. The only comparison was the price of a Big Mac. They kept the US Dollar as the benchmark and see how many more burgers can one buy in other currencies@their country. The index as shown in the graph below shows currencies that are overvalued(right) and undervalues(left).
Correction: Interesting to know that Malaysia is the most under-valued in the list presented; which we can see from inflationary prices.
