Archive for the ‘Economics’ Category


    How travel time and cost become substitutes or complement?

    By on Thursday, May 7th, 2009 | 2 Comments

    Callnoc asked: If we have travel time and travel cost, under what conditions can they be considered as substitues? Under what conditions can they be considered as complements? Could you please give example in transportation system? Thanks.Agnes Share and Enjoy:

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