In a unique Marketplace test, we reveal how your personal data like your search history, social media profiles, and what device you use, can give companies clues about what they can charge you online. It's called personalised pricing or price discrimination - and it results in different prices for different people for the same product. If companies think you would pay more, you will. Find out how to game the system in your favour to get the lowest price online Plus, we’ve commissioned a poll on Canadian attitudes and perceptions about online shopping, privacy, and price discrimination.