United States
Lund University - Department of Economic History
China, New Rural Social Pension, labor supply, regression discontinuity, retirement
smoking, disability retirement, specific conditions, siblings, twins
immigration, health, sickness benefits, labour market, integration
public health investment, infectious diseases, mortality, children, Sweden
difference-in-differences, agriculture, production, property rights, enclosures, event-study
vaccine, polio, income, education, early-life, Sweden
inequality, social class, living standards, demographic transition, short-term economic stress, demographic response