Table 4. Rate estimation equations dependent variable: truck-
 load freight rate.


Independent
Variable

Intercept

June intercept shifter

Average daily loss per cwt.

Distance (miles)

Distance squared

Number of pickups


Number of drops

Owner-operator

Year of experience, if owner-operators

Carrier based at origin or destination

Load arranged by broker

F


R2

Number of observations

aOne hundred and fifty-one of the origin
incomplete data.


Estimated Parameters
 (standard errors)

 -480.6
 (191.8)
 184.5
 (41.60)
 50.83
 (8.175)
 1.856
 (.3017)
 -.0003456
 (.0001198)
 38.92
 (15.08)
 52.35
 (14.83)
 -31.33
 (56.38)
 -1.923
 (2.020)
 40.70
 (41.01)
 -29.14
 (43.56)
 34.83

 .5812

 262a

ial 413 observations had