1. Mostly harmless econometrics: An empiricist's companion;Angrist,2009
2. Network effects and welfare cultures;Bertrand;Social Science Electronic Publishing,2000
3. Ethnicity, neighborhoods, and human-capital externalities;Borjas;The American Economic Review,1995
4. Poor places, poor prospects?;Brännström;Counterfactual models of neighbourhood effects on social exclusion in Stockholm, Sweden, Urban Studies,2004
5. Is China abolishing the hukou system?;Chan;China Quarterly,2008