In many countries, tourism is an intensive sector in natural resources (e.g. urban land on the coastline, beaches, clean air, biodiversity) that are not easily renewable and whose stock tends to diminish. The development of a tourist destination generally consumes a high proportion of these, which is why these economies are often referred to as resource-based economies. International trade allows these natural resources, which in principle are not tradable, to be implicitly exported each time a foreign tourist consumes them. Use your economic intuition to develop a hypothesis on how urban land prices are determined.

(a) Assume that Spain is a closed economy, as a result tourism demand is formed only by domestic consumers. How, do you think that urban land prices are determined?

(b) Now, assume that, given the comparative advantage in tourism, Spain opens its economy to international tourism. Analyze how opening up of the economy affects relative prices of tourism respect to the closed economy situation. Also, analyze how relative demand and relative supply of tourism is going to be affected.

(c) Given that the production of tourism services entails a great use of non-tradable natural resources (i.e., urban land), explain how international tourism affects housing prices.

(d)Formulate some hypotheses on how this affects resident's welfare depending on whether local residents are householders that own real state properties or are tenants.