. >> reporter: renny aupetit owns a bookstore in eastern paris.ys he has a problem with the way amazon tries to maximize profits, including its interpretation of a law that's helped small bookstores compete with big chains for decades. in 1981, the french government passed what's known as the lang law, which essentially fixed the price of books. the publisher prints the price on the back and no one can sell it for more than a 5% discount. so no matter where you go-- to a small independent store a large chain the price is going to be pretty much the same. but what the authors of the law didn't necessarily foresee in the early 80s was the coming of the internet, and amazon. when the company launched in france 15 years ago, like everyone else, it could offer a discount of 5%. but amazon offered free shipping. the french said that amounted to an unfair advantage over independent bookstores, especially when coupled with the convenience of shopping from home. so the french assembly passed a bill in 2013 forbidding any online retailer from offering both