Tough global bank reforms will be disproportionately difficult to implement in developing economies and will damage their growth, a global taskforce of bankers and businessmen from emerging markets is set to warn.

The so-called Basel III rules will impose capital and liquidity requirements that were designed for U.S. and Europe institutions but would be difficult to implement in emerging economies, according to a report set to be issued on Sunday by the B20 group of businesses, which advises the G20 group of nations.