The Journal of Finance

The Journal of Finance publishes leading research across all the major fields of finance. It is one of the most widely cited journals in academic finance, and in all of economics. Each of the six issues per year reaches over 8,000 academics, finance professionals, libraries, and government and financial institutions around the world. The journal is the official publication of The American Finance Association, the premier academic organization devoted to the study and promotion of knowledge about financial economics.

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Investor Tax Heterogeneity and Ex‐Dividend Day Trading Volume

Published: 01/20/2006   |   DOI: 10.1111/j.1540-6261.2006.00842.x

DAN DHALIWAL, OLIVER ZHEN LI

We propose that ex‐dividend day excess volume is motivated by tax heterogeneity among investors, and thus is increasing in investor tax heterogeneity. Institutional ownership is our measure of heterogeneity. Since investor heterogeneity is a concave function of institutional ownership, we hypothesize that ex‐day volume is a concave function of institutional ownership. Cross‐sectional tests support the tax‐motivated trading hypothesis. Additional tests, using trade size and pension ownership as proxies for institutional trades, yield similar results. We contribute to the literature by considering the interaction between payout policy and ownership structure in explaining the cross‐sectional variation in ex‐day volume.