* The Returns of Two Types of Investors;

data returns;



   ret_a     ret_b

 -----------------

   30.00     30.33

   -2.13    -30.37

    4.30     -5.61

   25.00     29.00

   12.89    -26.01

  -20.24      0.46

    1.20      2.07

   -2.59     29.44

   33.00     11.00

   14.26    -25.93

  -15.83      8.29

    0.63     61.00

   38.00    -20.44

    6.93    -34.75

  -13.24     54.19

  -18.95     44.00

    9.43    -20.23

    1.21      4.16

   31.76     10.03

   11.07     10.51

    8.47     39.04

   36.08     24.76

  -21.95     15.28

   10.33     34.21

   12.68     52.00

   13.09    -32.17

   13.77     30.31

   22.42      6.06

   34.40     14.73

   49.87     36.13

   22.92      1.53

   20.95     17.61

   43.71      1.20

  -12.83      9.94

    0.52    -33.39

   61.00     58.67

  -11.96      0.25

    1.94      5.23

   28.45     66.00

   -8.55     24.30

   -5.29    -10.01

   -7.04     35.24

  -12.11     40.70

   12.89     22.18

   63.00      3.24

  -19.27     25.10

   -9.22    -24.24

  -17.00    -38.47

   17.30     13.44

   52.00     68.00