The Socioeconomic Gradient of Child Development: Cross-Sectional Evidence from Children 6–42 Months in Bogota
研究了波哥大6-42个月儿童的发展水平与社会经济地位的关系，发现儿童发展存在显著的社会经济梯度，对理解早期不平等有参考价值。
Marta Rubio-Codina⇑, Orazio Attanasio, Costas Meghir, Natalia Varela and Sally Grantham-McGregor Correspondence to: Marta Rubio-Codina, Institute for Fiscal Studies, 7 Ridgmount Street, London WC1E 7AE, UK. Email: marta_r{at}ifs.org.uk. Telephone: +44 20 7291 4800.