This paper aims to contribute to the literature on rural-to-urban migration in developing economies by shedding more light on the hitherto little-investigated linkage between the rural sector and the process of urban development. To this end, we combine existing spatial rural-to-urban migration frameworks and extend them by including some key assumptions of the urban development theory. Specifically, we construct a dynamic rural-to-urban migration model in which the links between the urban and rural areas are modeled using the spatial variables of rural land rents and an urban productivity spillover, in order to investigate the contribution of the rural labor supply to urban agglomeration and city growth. The results of our model indicate that rural land rents affect the optimal level of urban agglomeration in scenarios of both unplanned and planned migration, and that the city planner’s solution of optimal agglomeration may not necessarily be inferior to the market solution. In addition, we find that due to their impact on rural workers’ incomes, the spatial variables exert an influence on the steady-state level of growth to which the urban economy can converge. Our study bears policy implications, including the need for city planners to consider spatial variables in order to achieve the desired trade-off between city growth and urban agglomeration.

本文旨在通过更多地阐明迄今为止尚未进行过调查的农村部门与城市发展进程之间的联系，为发展中经济体从农村向城市迁移的文献做出贡献。为此，我们结合了现有的从农村到城市的空间迁移框架，并通过包括城市发展理论的一些关键假设来扩展它们。具体而言，我们构建了一个动态的城乡迁移模型，该模型使用农村土地租金的空间变量和城市生产率溢出来模拟城乡之间的联系，以调查农村劳动力供给的贡献。城市群和城市发展。我们模型的结果表明，在计划外和计划内迁移的情况下，农村土地租金都会影响城市集聚的最佳水平，而城市规划者对最佳集聚的解决方案不一定要劣于市场解决方案。此外，我们发现由于空间变量对农民工收入的影响，它们对城市经济可以收敛的稳态增长水平产生影响。我们的研究具有政策含义，包括城市规划人员需要考虑空间变量，以实现城市增长与城市群之间的理想平衡。我们发现，由于空间变量对农民工收入的影响，它们对城市经济可以收敛的稳态增长水平产生影响。我们的研究具有政策含义，包括城市规划人员需要考虑空间变量，以实现城市增长与城市群之间的理想平衡。我们发现，由于空间变量对农民工收入的影响，它们对城市经济可以收敛的稳态增长水平产生影响。我们的研究具有政策含义，包括城市规划人员需要考虑空间变量，以实现城市增长与城市群之间的理想平衡。