Suppose the quantity of high-quality housing is 75 in year t-1, and the downward filtering rate is 20 percent. If the quantity of new housing is 10 per year, the quantity of high-quality housing in year t is [50 / 70 / 75 / 85] dwellings. Following our model on local government revenue, indicate the relationship for each pair of variables: [positive / negative / neutral / ambiguous] Parameter Choice Variable Relationship structure tax: General equilibrium price of structure structure tax: General equilibrium price of land in taxing city structure tax: General equilibrium price of land in other city