Suppose a gravity model of trip distribution has been estimated as Tij O0:5 i D0:2 j

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Suppose a gravity model of trip distribution has been estimated as Tij ¼ O0:5 i D0:2 j =dij:

a. What is Tij if Oi ¼ 100, Dj ¼ 200, and dij ¼ 5 miles? What if the distance is 10 miles instead of five miles?

b. What happens to Tij if both Oi and Dj double in size?

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Urban Economics And Real Estate: Theory And Policy

ISBN: 9781621577706

2nd Edition

Authors: John F. McDonald, Daniel P. McMillen

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