An Introduction to Sample Selection Bias in Sociological Data

Abstract

White, Douglas R. and Karl Reitz ForthGraphs and semigroup homomorphisms comon networks of relations. Neting works. White, Harrison C., Scott A. Boorman and Ronald L. Breiger 1976 Social structure from multiple networks. I. Blockmodels of roles and positions. American Journal of Sociology 81:730-80. Winship, Christopher 1976 Roles and relations. Unpublished paper, Department of Sociology, Harvard University. Winship, Christopher and Michael J. Mandel ForthRoles and positions: a critique and extencomsion of the blockmodelling approach. In ing Samuel Leinhardt (ed.), Sociological Methodology 1983/84. San Francisco: JosseyBass. Wu, Lawrence L. 1980 Roles structures in networks of trade and economic interdependence: a local blockmodel algebraic approach. Seniors Honors Thesis, Department of Sociology, Harvard University. 1982 Local blockmodel algebras. Unpublished paper, Department of Sociology, Stanford University.