WSJ's "Why Borrowers May Not Benefit From Rate Cut" mentions the impact of a higher LIBOR rate on money fund investors. "Higher Libor rates have helped sustain healthy returns in money-market mutual funds. These funds' holdings of Libor-linked debt have helped to offset declining yields on other investments. An estimated 20% to 25% of money-market assets are in floating-rate debt, much of which is linked to Libor, says Peter Crane of Crane Data LLC."