Search Results Use the search box below to revise your search, or start a new search. Studies (5) Variables Publications Your query returned 5 studies. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. Dynamics of Economic and Demographic Behavior: "Clean Processes" From the Panel Study of Income Dynamics (PSID) (ICPSR 1239) Lillard, Lee A. 2. International Social Justice Project, 1991 and 1996 (ICPSR 6705) Wegener, Bernd; Mason, David; International Social Justice Project (ISJP) 3. International Social Justice Project, 1996 and 2000 [Germany] (ICPSR 22750) Wegener, Bernd; International Social Justice Project (ISJP) 4. National Health Interview Survey, 1974: Currently Employed Supplement (ICPSR 9798) United States Department of Health and Human Services. Centers for Disease Control and Prevention. National Center for Health Statistics 5. Panel Study of Income Dynamics, 1968-1999: Annual Core Data (ICPSR 7439) Hofferth, Sandra; Stafford, Frank P.; Yeung, Wei-Jun J.; et al.