Sucheta Dalal writes about India:

Salary differences between equally qualified (non-professional/technical) candidates can be as high as 400 to 500 per cent. In fact, the more fancied jobs in airlines, hotels, media, banks and financial services only to those who know English, the rest are forced into less fancied assignments.

Read the entire article. It speaks to factor price equalization as well as what I refer to in my book as The Language Barrier.

Thanks to Michael Mandel for the pointer.