As already noted a few days ago, the OFT just published a paper on consumer protection and competition policy. The new issue of Competition Policy International also has some articles on the issue. As far as I remember CPI as free until recently. It is a pity that now you have to pay for access, but I also have to note that the subscription fee is not too high.
From the last issue:
Consumer Protection Policies, Economics, and Interactions with Competition Policy
Interactions between Competition and Consumer Policy
Consumer Protection and Behavioral Economics: To BE or Not to BE?
Regulation of Information and Advertising
Unfair Commercial Practices and Misleading and Comparative Advertising: An Analysis of the Harmonization of EU Legislation in View of the Italian Implementation of the Rules