"The migration of labor from rural to urban areas is an important part of the urbanization process in developing countries. Even though it has been the focus of abundant research over the past five decades, some key policy questions have not found clear answers yet. To what extent is internal migration a desirable phenomenon and under what circumstances? Should governments intervene and, if so, with what types of interventions? What should be their policy objectives? To shed light on these important issues, the authors survey the existing theoretical models and their conflicting policy implications and discuss the policies that may be justified based on recent relevant empirical studies. A key limitation is that much of the empirical literature does not provide structural tests of the theoretical models, but only provides partial findings that can support or invalidate intuitions and in that sense, support or invalidate the policy implications of the models. The authors' broad assessment of the literature is that migration can be beneficial or at least be turned into a beneficial phenomenon so that in general migration restrictions are not desirable. They also identify some data issues and research topics which merit further investigation. "--World Bank web site.

"The magnitudes, nature, causes, and consequences of population movements between rural and urban sectors of developing countries are examined. The prior literature is reviewed, proving limited in key dimensions. Evidence is presented from a new database encompassing nationally representative data on seventy-five developing countries. Several measures of migration propensities are derived for the separate countries. The situation in each country is documented, both in historical context and following the time of enumeration. Rural-urban migrants enjoy major gains; those who do not move forego substantial, potential gains. Barriers to migrating are very real for disadvantaged groups. Migration among ethnolinguistic communities is a pervasive theme; the context in which each group lives is detailed. Upward mobility in incomes in towns is affirmed, and the departure of adults from rural homes raises living standards of the family left behind but consequent separation of married couples is endemic to particular societies. Reclassification of rural areas as urban is shown to be more important than net rural-urban moves in incremental urbanization and rural-urban moves are less permanent than normally portrayed. A contention of symmetry between rural-urban and urban-rural migration propensities is rejected and indications that these twin movements result in sorting of labor by skills is not supported. Moreover, step and onward migration are not as common as popularly claimed. Previously neglected topics studied include autonomous migration by women, child migration, and networks at origin. Policies to limit rural-urban migration are questioned, rather planning for managed urban growth is vital as climate change continues. Key words: Rural, urban, migration, development, literature, database, reclassification, sorting, policies"--

Literature survey on migration policies relating to internal migration in developing countries - covers the effect of demographic aspects and economic conditions, and educational level on rural migration patterns, and analyses the impact of fertility level on urban development. References and statistical tables.