FRANKFURT: Deutsche Bank, Germany’s biggest lender, has felt compelled to reassure investors that it has sufficient cash to pay its riskiest debts, as banking shares around the world take a hammering on slowdown fears. In a short statement late Monday, the bank — whose shares have plummeted by nearly 40 per cent since the beginning of the year — said that it has more-than-sufficient means to pay coupons on its riskiest debt both this year and next year.