"Public pension plans have boosted their holdings in alternative assets, defined as private equity, hedge funds, real estate, and commodities. This shift reflects a search for higher returns, a hedge for other investment risks, and diversification. The question is how the shift has affected returns and volatility over two periods: 2005-2015 and 2010-2015. In terms of returns, a 10-percent increase in the average allocation to alternatives was associated with a reduction of 30-45 basis points, primarily due to hedge funds. In terms of volatility, alternatives did not have a statistically significant effect. Hedge funds reduced volatility, but real estate and commodities increased it."  MORE >>