The Globe and Mail reports in its Monday edition that seven years after the global financial crisis, Canada's banks remain selective in their disclosure. The Globe's Tim Kiladze writes that the problem is illustrated by Ottawa's recent crackdown on credit-card transaction fees. Even to day, Canadian banks do not reveal this revenue number in their financial disclosures. As a result, Bay Street analysts must rely on estimates when making their investment recommendations. CIBC World Markets analyst Rob Sedran says the impact of reduced credit-card transaction fees cannot be known for certain. He says, "Though several banks noted the potential changes on recent webcasts, none provided any financial information that would be helpful in quantifying the impact." The fees are just one of many veiled areas within Canadian banking, even after demands for greater transparency that followed the financial crisis. For more than a decade, no one knew with certainty that Canadian Imperial Bank of Commerce's Aeroplan credit card portfolio contributed 11 per cent of the lender's total profit. It was only when CIBC sold half of the accounts to Toronto-Dominion Bank in 2013 that this information was made public.