Table 1. Descriptive Statistics on Regulatory Differences and Explanatory Variables
(2256 Observations)
|
Dependent Variables_______________ |
_______________Unit |
Mean |
Std.Dev. |
Minimum |
Maximum |
|
NWS list regulatory overlap | |||||
|
2002 |
NA |
0.428 |
0.182 |
0.083 |
0.963 |
|
1997 |
NA |
0.411 |
0.186 |
0.057 |
1.000 |
|
NWS-prohibited list regulatory overlap | |||||
|
2002 |
NA |
0.401 |
0.269 |
0.000 |
1.000 |
|
1997 |
NA |
0.320 |
0.202 |
0.000 |
1.000 |
|
NWS-restricted regulatory list overlap | |||||
|
2002 |
NA |
0.411 |
0.269 |
0.000 |
1.000 |
|
1997 |
NA |
0.319 |
0.197 |
0.000 |
1.000 |
|
NW list regulatory overlapa | |||||
|
2002 |
NA |
0.302 |
0.295 |
0.000 |
1.000 |
|
1997 |
NA |
0.310 |
0.268 |
0.000 |
1.000 |
|
Independent Variables | |||||
|
Lobby Variables | |||||
|
Seed producers | |||||
|
2002 |
$ |
108618 |
189283 |
550 |
1040040 |
|
1997 |
$ |
92233 |
169980 |
250 |
1010680 |
|
Consumers | |||||
|
2002 |
$ |
364199 |
551105 |
2500 |
2564890 |
|
1997 |
$ |
253955 |
624000 |
5000 |
4206990 |
|
Commodity producers | |||||
|
2002 |
$ |
775331 |
1272660 |
15865 |
6476520 |
|
1997 |
$ |
556395 |
933924 |
4550 |
5179920 |
|
Agronomic Variables | |||||
|
Irrigated land share | |||||
|
2002 |
Acre/Acre |
0.177 |
0.221 |
0.002 |
0.794 |
|
1997 |
Acre/Acre |
0.178 |
0.238 |
0.002 |
0.901 |
|
Field land share | |||||
|
2002 |
Acre/Acre |
0.686 |
0.171 |
0.296 |
1.030 |
|
1997 |
Acre/Acre |
0.685 |
0.172 |
0.310 |
1.089 |
|
Ecological Variablesb | |||||
|
Average Temperature |
January temperature |
52.498 |
7.684 |
40.161 |
70.902 |
|
Average Precipitation |
Days of precipitation |
88.450 |
33.930 |
21.713 |
142.551 |
|
Variance of Temperature |
NA |
5.419 |
6.196 |
0.000 |
37.893 |
|
Variance of precipitation |
NA |
266.549 |
895.464 |
0.000 |
4849.02 |
|
Land Share Indexc |
Index |
0 |
1.00 |
-1.785 |
1.8340 |
|
Water Share Indexc |
Index |
0 |
1.00 |
-1.210 |
3.981 |
|
Soil Share Indexc_______________________ |
______________Index |
_______0 |
1.00 |
-1.447 |
2.592 |
a Number of observations is 1190 and 870 respectively for 2002 and 1997
b NORSIS, US Forest Service data.
c Based on principal component analysis.
27
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