US students ripped off by Amazon.com

Yale's Christos Cabolis and colleagues, forthcoming paper called A Textbook Example of International Price Discrimination finds that although books for general audiences are similarly priced internationally, "textbooks are substantially more expensive in the United States" (on amazon.com) than the UK (amazon.co.uk). They argue that "cost factors cannot explain this phenomenon and discuss several demand-side explanations."

I checked out a few books on the two sites and found the following price differentials. Among the books I checked, the highest price differential was in this book called options, futures and other derivatives ($ 70.00) and the lowest was statistics for economists ( $ 21.37). Microeconomic principles by Cowell was cheaper in the UK than the US by 0.97 cents.