This article is intended to examine the nature of urban expansion and development from a land speculation and urban sprawl perspective. Survey and case study approach were used to achieve this aim. As urban territory extends into adjacent periurban areas, speculators keep their land out of the current market so that developers of land and buildings must bypass it and home buyers should travel further distance to buy new lands and houses. This extra distance creates additional costs by increasing the cost of development, operation and travel. The finding of this article concludes that the speculators who held their land out off the market and received an average land value increase of about $230 per m² each year generated extra social costs which they did not pay about $1,810 per m² each year.

本文旨在从土地投机和城市扩张的角度研究城市扩张和发展的本质。通过调查和案例研究的方法来实现这一目标。随着城市领土延伸到邻近的郊区，投机者将其土地排除在当前市场之外，因此土地和建筑物的开发商必须绕过它，购房者应该走得更远才能购买新的土地和房屋。这种额外的距离会增加开发，运营和旅行的成本，从而增加成本。本文的调查结果得出结论，谁持有土地开出客市场，并收到约$ 230平均土地价值上升每平方米投机者²产生的，每年他们没有约每平方米1810 $支付额外的社会成本² 每年。