Why has urban inequality increased? / Social networks as concract enforcement: evidence drom a lab experiment in the field / Access to migration for rural households / Foreign rivals are coming to town: responding to the threat of foreign multinational entry / Economic shocks and crime: evidence from the brazilian trade liberalization / Mentors or teachers? Microenterprise training in Kenya / Role models or individual consulting: the impact of personalizin micro-entrepreneurship training / The effect of terrorism in employment and consumer sentiment: evidence from successful and failed terror attacks / Modern family? Paternity leave and marital stability / Diabetes and diet: purchasing behavior change in response to health information.