This is the accepted version of the paper.This version of the publication may differ from the final published version. Permanent repository link AbstractWe use a new data set to study the determinants of the performance of open-end actively managed equity mutual funds in 27 countries. We find that mutual funds underperform the market overall. The results show important differences in the determinants of fund performance in the U.S. and elsewhere in the world. The U.S. evidence of diminishing returns to scale is not an universal truth as the performance of funds located outside the U.S. and funds that invest overseas is not negatively affected by scale. Our findings suggest that the adverse scale effects in the U.S. are related to liquidity constraints faced by funds that, by virtue of their style, have to invest in small and domestic stocks. Country characteristics also explain fund performance. Funds located in countries with liquid stock markets and strong legal institutions display better performance.JEL classification: G15; G18; G23

We use a new dataset to study how mutual fund flows depend on past performance across 28 countries. We show that there are marked differences in the flow-performance relationship across countries, suggesting that U.S. findings concerning its shape do not apply universally. We find that mutual fund investors sell losers more and buy winners less in more developed countries. This is because investors in more developed countries are more sophisticated and face lower costs of participating in the mutual fund industry. Higher country-level convexity is positively associated with higher levels of risk taking by fund managers. JEL Classification: G15; G23

Gruber (1996) and Zheng (1999) report that investors channel money toward mutual funds that subsequently perform well. Sapp and Tiwari (2004) find that this "smart money" effect no longer holds after controlling for stock return momentum. While prior work uses quarterly U.S. data, we employ a British data set of monthly fund inflows and outflows differentiated between individual and institutional investors. We document a robust smart money effect in the United Kingdom. The effect is caused by buying (but not selling) decisions of both individuals and institutions. Using monthly data available post-1991 we show that money is comparably smart in the United States. Copyright 2008 by The American Finance Association.

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