Dears,
I developed a travel cost model comparing data which was collected before and after an ecological restoration. The aim is to determine if the restoration affected the recreational value of the natural area.
I used a pooled model, like in contingent travel cost model. The results are that dummy variable (expressing whether visitor is pre or post restoration) is significant and negative, whereas its interaction with cost is not significant.
I understand that being pre or post is influencing number of visits but it is not influencing the demand curve. Is this true?
Therefore, do these results mean that ecological restoration is not significantly affecting the value of a visit?
(I attach the results of the model)
Thank you. Cost is a variable expressing the cost of a trip to the natural area, post_ER is a dummy variable expressing whether individual is surveyed before or after the ecological restoration. The aim of the model is to determine if restoration changed the demand curve (inferred from cost).
So, I understand that if post_ER is not interacting with cost, the demand curve of natural area is not influenced by ecological restoration, right?
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