Table 5
Model estimates of revenue per shipment for less-than-truck-load carriers

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Model estimates of revenue per shipment for less-than-truck-load carriers


Table summary
This table displays the results of model estimates of revenue per shipment for less-than-truck-load carriers model 1, model 2a and model 2b, calculated using coefficient, p-value, model 1, model 2a and model 2b units of measure (appearing as column headers).

  Model 1 Model 2A Model 2B
  coefficient p-value coefficient p-value coefficient p-value
Domestic  
Year 5 0.455 3 0.769 3 0.275
Distance -0.00003 0.996 -0.00147 0.872 -0.00147 0.613
Distance x tonnes 0.11 0.000 0.11 0.000 0.11 0.000
Distance x tonnes x tonnes -0.0038 0.000 -0.0039 0.000 -0.0039 0.000
Distance x tonnes x year -0.0003 0.894 -0.0004 0.875 -0.0004 0.787
Intercept 134 0.000 142 0.002 142 0.000
Export  
Year 11 0.234 11 0.266 11 0.385
Distance 0.028 0.237 0.028 0.273 0.028 0.035
Distance x tonnes 0.19 0.000 0.18 0.000 0.18 0.000
Distance x tonnes x tonnes -0.0072 0.000 -0.0071 0.000 -0.0071 0.000
Distance x tonnes x year -0.001 0.432 -0.001 0.668 -0.001 0.430
Export binary 211 0.000 215 0.001 215 0.000
Import  
Year -5 0.653 -7 0.551 -7 0.166
Distance 0.041 0.003 0.040 0.009 0.040 0.000
Distance x tonnes 0.18 0.000 0.18 0.000 0.18 0.000
Distance x tonnes x tonnes -0.0077 0.000 -0.0077 0.000 -0.0077 0.000
Distance x tonnes x year 0.003 0.094 0.003 0.073 0.003 0.000
Import binary 166 0.002 164 0.008 164 0.000
  Model 1 Model 2A Model 2B
Diagnostic statistics  
Number of observations 1,697,374 1,697,374 1,697,374
F-statistics 110 132 1,147
R-squared 0.383 0.352 0.352
Note(s): 
For estimates in Models 1 and 2A, p-values are based on analytical, robust standard errors corrected for within-group (trucking firm) correlation. P-values in Model 2B are based on jackknife standard errors. Estimates in Model 1 include commodity fixed effects (using commodities classified under the Standard Classification of Transported Goods at the 5-digit level); estimates in Models 2A and 2B do not.
Source(s): 
Statistics Canada, Trucking Commodity Origin and Destination Survey, 2004 to 2009; and Bureau of Transportation Statistics, North American Transborder Freight Data, 2004 to 2009, and Commodity Flow Survey, 2007.
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