Introduction
The Competition Authority's decision which the highest
administrative fine imposed in its history is known as the "12
Banks Decision"[1]. In this
decision, the Competition Authority ("Authority") has
reviewed the investigation of the competition violation claims in
the deposit, credit and credit card markets, and imposed heavy
administrative fines upon 12 banks, in which Turkey's largest
banks are included. The 12 Banks Decision has imposed a TL 1
billion administrative fine, in total, which comprises thousands of
compensation cases. In this Decision, the Authority has assessed
that the mentioned banks were in breach of competition in the
deposit, credit and credit card services markets between the years
2007 and 2011. Detecting such a wide-ranging competition violation
naturally induced the filing of thousands of customer cases.
