Bloomberg The whistle-blower’s dilemma is usually easy to understand, if hard to solve. Choose the ethically honest path and you face ostracism and the sack; head down the less honest route and you may have more job security and better promotion prospects. Regulators have used a stick and carrot to try to solve this. Whack banks with a fine …

  Bloomberg Royal Bank of Scotland Group Plc, Britain’s largest taxpayer-owned lender, said some of its biggest trading clients must pay interest on collateral as a consequence of low central bank interest rates. Some of the bank’s institutional clients will need to pay interest on funds pledged as collateral when trading futures contracts, the bank said in an e-mailed statement. …

  Bloomberg US investment bank JPMorgan will include Islamic bonds, or sukuk, in its emerging markets indices for the first time from later this year, widening the appeal of Islamic instruments among global debt investors. JPMorgan, which runs the most widely used benchmarks of emerging market debt, will include eight sukuk across its index family starting Oct. 31. The decision …