The EU is set to look into Amazon's business practices. — Reuters pic

BRUSSELS, July 17 — US online retailer Amazon said today that it would cooperate fully with EU antitrust regulators investigating its use of merchants' data.

The European Commission said the investigation would look into two issues - Amazon"s standard contracts with marketplace sellers and the role of data in selecting winners of the "buy box" which allows buyers to add items from a specific retailer into their shopping carts. — Reuters