TY - JOUR AU - Hamilton,James D. AU - Okimoto,Tatsuyoshi TI - Sources of Variation in Holding Returns for Fed Funds Futures Contracts JF - National Bureau of Economic Research Working Paper Series VL - No. 15736 PY - 2010 Y2 - February 2010 UR - http://www.nber.org/papers/w15736 L1 - http://www.nber.org/papers/w15736.pdf N1 - Author contact info: James D. Hamilton Department of Economics, 0508 University of California, San Diego 9500 Gilman Drive La Jolla, CA 92093-0508 Tel: 858/534-5986 Fax: 858/534-7040 E-Mail: jhamilton@ucsd.edu Tatsuyoshi Okimoto Graduate School of International Corporate Strateg Hitotsubashi University 2-1-2 Hitotsubashi, Chiyoda-ku, Tokyo 101-8439, JA E-Mail: tatsuyoshi.okimoto@gmail.com AB - This paper relates predictable gains from positions in fed funds futures contracts to violations of the expectations hypothesis of the term structure of interest rates. Although evidence for predictable gains from positions in short-horizon contracts is mixed, we find that gains in longer horizon contracts can be well described using Markov-switching models, with predictability associated with particular episodes in which economic activity was weak and variability in the returns to these contracts was quite high. ER -