In an economy with migration, poverty changes are composed of a number of forces, including the income gains and losses … measure the contributions of different migration streams to overall poverty change. An application to Tanzania shows the new … insights that are provided - in particular on the role of migration to secondary towns in poverty reduction. …

Should public investment be targeted to big cities or to small towns, if the objective is to minimize national poverty … poverty gradient from rural to town to city will exist as an equilibrium phenomenon. We then address the policy question and … show how the answer depends on the migration response, where the poverty line lies relative to incomes in the three …