Optimal spatial growth of employment and residences
研究在不可逆土地利用和人口平稳增长条件下，就业与居住的最优区位模式，通过最小化运输与通勤成本现值来求解，发现居住区随时间向外扩张，但总有固定比例土地预留给未来就业开发。
This paper examines the location patterns of employment and residences in an urban area characterized by irreversible land use commitments and smoothly growing population. It is assumed that all output is shipped to the center of the urban area and that workers have commuting costs of getting to work. The optimal solution, which is also the equilibrium solution, minimizes the present discounted value of aggregate shipping costs plus commuting costs. The residential area expands outward over time, but a constant fraction of the land is always reserved for future employment development.