TY - JOUR AU - Canner,Niko AU - Mankiw,N. Gregory AU - Weil,David N. TI - An Asset Allocation Puzzle JF - National Bureau of Economic Research Working Paper Series VL - No. 4857 PY - 1994 Y2 - September 1994 UR - http://www.nber.org/papers/w4857 L1 - http://www.nber.org/papers/w4857.pdf N1 - Author contact info: N. Gregory Mankiw Department of Economics Littauer 223 Harvard University Cambridge, MA 02138 Tel: 617/495-4301 Fax: 617/495-7730 E-Mail: ngmankiw@fas.harvard.edu David N. Weil Department of Economics Box B Brown University Providence, RI 02912 Tel: 401/863-1754 Fax: 401/863-1970 E-Mail: david_weil@brown.edu M2 - featured in NBER digest on 1995-02-01 AB - This paper examines popular advice on portfolio allocation among cash, bonds, and stocks. It documents that this advice is inconsistent with the mutual-fund separation theorem, which states that all investors should hold the same composition of risky assets. In contrast to the theorem, popular advisors recommend that aggressive investors hold a lower ratio of bonds to stocks than conservative investors. The paper explores various possible explanations of this puzzle. It concludes that the portfolio recommendations can be explained if popular advisors base their advice on the unconditional distribution of nominal returns. It also finds that the cost of this money illusion is small, as measured by the distance of the recommended portfolios from the mean-variance efficient frontier. ER -