Localities in developed countries often restrict construction and population growth through regulations governing land usage, lot sizes, building heights, and frontage requirements. In developing countries, such policies are less effective because of the existence of unregulated, informal...

This paper examines the impact of temperature changes on rural-urban migration using a 56km×56km grid cell level dataset covering the whole world at 10-year frequency during the period 1970-2000. We find that rising temperatures reduce rural-urban migration in poor countries and increase such...

China's fast economic growth over the past 40 years has been accompanied by an increasingly rapid rate of urbanization, from about 20% in the early 1980s to 60% in 2018. In addition to natural population growth, rural-urban migration is generally believed to be a dominant driving force....

This paper explores the contribution of the structural transformation and urbanization process to China's housing-market boom. Rural to urban migration together with regulated land supplies and developer entry restrictions can raise housing prices. This issue is examined using a multi-sector...

When people can self-insure via migration, they may have less need for informal risk sharing. At the same time, informal insurance may reduce the need to migrate. To understand the joint determination of migration and risk sharing I study a dynamic model of risk sharing with limited commitment...

This paper exploits two unique features of China's history to study the effects of access to internal migration: reforms to the household registration (hukou) system, and historical migration flows. We show that temporary migration due to a government policy called the "sent-down youth" (SDY)...

Many efforts to improve school quality by adding school resources have proven to be ineffective. This paper presents the results of two experiments conducted in Mumbai and Vadodara, India, designed to evaluate ways to improve the quality of education in urban slums. A remedial education program...

SARS-CoV-2 has had a greater burden, as measured by rate of infection, in poorer communities within cities. For example, 55% of Mumbai slums residents had antibodies to COVID-19, 3.2 times the seroprevalence in non-slum areas of the city according to a sero-survey done in July 2020. One...

We use a multi-country field experiment to test the effect of a slum-housing intervention on the housing aspirations of non-beneficiary neighbors. Initially after treatment, nontreated households' aspirations to upgrade their dwelling are significantly higher compared to the treatment group,...