Gyourko, Mayer, and Sinai justify their claim by arguing that these cities really are unique. They have only limited land, and if one assumes ever-increasing GDP and rising income inequality, there will always be more and more wealthy people to bid up prices in these scarce areas.
为什么房屋价格会在超级明星城市持续走高？约瑟夫·吉尔科, 克里斯托弗·迈耶和托德·赛奈给出理由，认为这些城市确实与众不同。那里只有有限的土地，如果GDP不断增长以及收入不平等地增加，就总会有越来越多的富人在这些面积有限的地方抬高房价。