Mii Fu-kuo, a professor of architecture at Tamkang University, points to the example of the USA in the 1960s. At that time the downtown areas of large cities like New York and Los Angeles were in decline, crime was rampant and economic activity stagnant, and the middle class was heading for the suburbs in panic-since christened "white flight."
淡江大學建築系教授米復國以 1960 年代的美國為例，當時如紐約、洛杉磯美國大城都面臨內城 (downtown) 衰敗、槍毒橫行、景氣蕭條、中產階級大量「撤離」至新興郊區等問題。