A two-region, spatial economic model is developed to explore the implications of interregional water transfers on household migration and the intraregional distribution of land between urban and agricultural use when there are agglomeration economies in urban production. A particular example is considered where an arid region lacks water resources but has differing levels of amenities and agricultural productivity relative to a water rich region. The conditions for the stability of both the dispersed and concentrated equilibria are found. Numerical simulations provide a graphical example of the set of stable equilibria in the parameter space. Finally, the model is calibrated using data on household consumption and agricultural production patterns in the US.

建立了两个区域的空间经济模型，以探讨在城市化生产存在集聚经济的情况下，区域间调水对家庭迁移的影响以及城市和农业使用之间区域内土地分配的影响。考虑一个特殊的例子，一个干旱地区缺乏水资源，但相对于富水地区而言，其设施和农业生产力水平却有所不同。找到了分散和浓缩平衡的稳定性条件。数值模拟提供了参数空间中一组稳定平衡的图形示例。最后，该模型使用美国家庭消费和农业生产模式的数据进行了校准。