It has been pointed out by the American co-authors of this paper that a post could rationalize its delivery costs by reducing the frequency of service on unprofitable routes to the point where they become profitable (Cohen et al.
It was pointed out by the co-authors that the post could rationalize the delivery costs by lowering the frequency of service on bad routes.
The co-authors said delivery costs wouldn't benefit if they lowered delivery on any routes.
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Girl riding a bicycle.
It is not certain whether the strengths and limitations of the methodology are clearly identified.
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A young man is covering up something with squares of paint.