There are two types of PPP. They are:
Purchasing Power Parity is calculated by comparing the price of an identical good in both the countries. The “Hamburger Index” in The Economist magazine presents the index in a jovial manner every year. But the calculation is not free from problem because consumers in every country consume different types of products. Another index is the iPOD Index. The iPOD is considered to be one of the standard consumer products these days. Hence PPP can be calculated by comparing its price.