Original sentence: Debt-focused critics, including Stephen Zarlenga, Lew Rockwell and Murray Rothbard, link the alleged negative effects of fractional reserve banking with a government-enforced "paper" or fiat currency, which they claim allows the practice of fractional reserve banking to continue without a "natural" limitation on the growth of the money supply, thereby causing inherently unsustainable "bubbles" in asset and capital markets, which are vulnerable to speculation in by highly leveraged hedge funds and other bank agents
Edited sentence: Debt-focused critics link the alleged negative effects of fractional reserve banking with a government-enforced "paper" or fiat currency, which they claim allows the practice of fractional reserve banking to continue without a "natural" limitation on the growth of the money supply, thereby causing inherently unsustainable "bubbles" in asset and capital markets, which are vulnerable to speculation in by highly leveraged hedge funds and other bank agents