[exDemMom]

Thanks for the description.

It does not seem like a very accurate method to me. But then, I’m not an economist.

I assume the actual index is calculated using a composite of goods and services, and not on the price of a single commodity. Because there can be considerable variation on the prices of individual items from region to region.

[cunning_fish]

>>>I assume the actual index is calculated using a composite of goods and services, and not on the price of a single commodity. Because there can be considerable variation on the prices of individual items from region to region.<<<

I don’t think World Bank is using straight Big Mac Index, but the difference with more complex methods is recognized as marginal among many financists.
Making and selling a burger involves numerous industries and services and for that reason it counts as a very accurate method.