give one reason why do we have to understand about the economic dimension of tourism

Economics and tourism are two aspects that can not be separated. Both of them are very influential each other. High number of tourists will give the high incomes for the state. The number of tourists who come can bring other benefits for the local community, they can open their own jobs by opening a place to eat, shelter, and become local tour guide.
Indirectly tourists can help to restore the country's economy. For example:
When supplies are abundant, prices tend to decrease. This interaction can clearly affect tourism and play an important role in decisions tourism development. As more tourism resources become available-forexample, as the number of cruise ships grows-the prices tend to decrease, all other things being the same.