In a particular year, Roll Tide Mutual Fund earned a return of 15% by making the following investments in the following asset classes:

	Weight	Return
Bonds	10%	6%
Stocks	90%	16%

The return on a bogey portfolio was 10%, calculated as follows:

	Weight	Return
Bonds (Lehman Brothers Index)	50%	5%
Stocks (S&P 500 Index)	50%	15%

The contribution of selection within markets to total abnormal return was