NIKE INC
| 2013 | FY |
The weighted average assumptions used to estimate these fair values are as follows:
Year Ended May 31,
2013
2012
2011
Dividend yield
1.5
%
1.4
%
1.6
%
Expected volatility
35.0
%
29.5
%
31.5
%
Weighted average expected life (in years)
5.3
5.0
5.0
Risk-free interest rate
0.6
%
1.4
%
1.7
%
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