TABLE 1

Summary Statistics (N = 2,150)

MeanStd. Dev.Max.Min.
2004 actual single-day trips (AT04)a6.768.79520
2005 actual single-day trips (AT05)a7.069.36520
2005 expected single-day trips (ET05)a8.8910.46520
2005 contingent behavior single-day trips (CB05)a9.0210.85520
Ageb54.81 (55.80)15.26 (15.29)82.5 (82.5)17 (17)
Genderb,c0.68 (0.67)0.47 (0.47)1 (1)0 (0)
Educationb,d0.38 (0.39)0.49 (0.49)1 (1)0 (0)
Household sizeb2.46 (2.49)1.30 (1.48)10 (30)0 (0)
Log of lake size (acres)2.250.704.2791.114
Boat ramp dummy0.920.2710
Wake restrictions dummy0.650.4810
Handicap facilities dummy0.450.5010
State park dummy0.450.5010
Water quality indexe6.71 (7.37)1.30 (0.56)9 (9)3 (7)
Secchi transparencye1.26 (1.37)0.86 (0.77)6.09 (6.09)0.30 (0.30)
Total phosphoruse115.39 (90.07)68.23 (29.85)409.40 (207.15)38.14 (38.14)
Total nitrogene2.81 (2.49)2.79 (1.79)13.66 (11.57)0.69 (0.69)
Travel costb84.44 (87.34)56.01 (56.97)705.86 (829.85)0.32 (0.35)
  • a Single-day trips for 100 lakes.

  • b The numbers in parentheses are for 2005, while those without parentheses are for 2004.

  • c Gender = 1 for males, and 0 for females.

  • d Education = 1 for college graduate or higher, and 0 otherwise.

  • e The numbers in parentheses denote the proposed water quality levels for the contingent behavior scenario.