Seguino, Stephanie; Heintz, James (July 2012). "Monetary Tightening and the Dynamics of US Race and Gender Stratification". American Journal of Economics and Sociology. 71 (3): 603–638. doi:10.1111/j.1536-7150.2012.00826.x. ISSN0002-9246.
Porter, Michael E. (2000). "Location, Competition, and Economic Development: Local Clusters in a Global Economy". Economic Development Quarterly. 14 (1): 15–34. doi:10.1177/089124240001400105.
Seguino, Stephanie; Heintz, James (July 2012). "Monetary Tightening and the Dynamics of US Race and Gender Stratification". American Journal of Economics and Sociology. 71 (3): 603–638. doi:10.1111/j.1536-7150.2012.00826.x. ISSN0002-9246.