Under rules recently finalized by the SEC, all money market funds will be permitted, and under some circumstances required, to impose liquidity fees and gates against investor redemptions if the fund’s weekly liquid assets fall below specified thresholds. In their release, the SEC said the purpose of these new rules is to mitigate money market funds’ susceptibility to heavy redemptions and improve their ability to manage and thwart possible contagion from redemptions.  An April 14, 2014 paper published by the the staff of the New York Fed, however, finds that in some cases the imposition of redemption gates may actually increase, rather than decrease, the possibility of runs on a fund.