Related by context. Frequent words. (Click for all words.) 41 Rolnick 41 Gruen 40 Fishkind 39 demographer 39 Gurian 38 William Frey demographer 38 Kasriel 37 Kotkin 37 Glaeser 36 paleoanthropologist 36 sociologists 36 Metrostudy 36 demographers 36 Gladwell 36 Binstock 36 researcher 35 sociologist 35 geographer 35 Demographers 35 Rogoff 35 life expectancy 35 mathematician 35 Leamer 35 Census Bureau 35 Hatzius 35 accompanying editorial 34 Finkelhor 34 coauthor 34 Relman 34 Camarota 34 USGS scientist 34 Swonk 34 Demographic Research 34 researchers 34 Leonhardt 34 Shiller 34 Joel Kotkin 34 anthropologist 34 median household 34 Samuelson 33 Warshawsky 33 longitudinal study 33 Weil 33 Sachs 33 Median household 33 Feldstein 33 Orfield 33 Lereah 33 Population Reference Bureau 33 Meyerson 33 Rothbard 33 Gabler 33 Stiglitz 33 Zimring 33 Nussbaum 33 Longitudinal Study 33 Thornberg 33 Quindlen 32 Gleick 32 Isaacson 32 Epidemiology 32 Lichtman 32 biostatistician 32 Susskind 32 Passel 32 epidemiology 32 Sageman 32 Inequality 32 Rosenzweig 32 Gillaspy 32 statistical blip 32 evolutionary biologists 32 sociological 32 Weiss 32 Frey demographer 32 neurobiologist 32 Pielke 32 Temkin 32 Weintraub 32 Schechter 32 life expectancies 31 birthrates 31 Neuroscientist 31 pediatric endocrinologist 31 Sperling 31 Kovel 31 Halperin 31 Leinberger 31 economist 31 Rosenberg 31 Fornell 31 Fradkin 31 menarche 31 socio demographic 31 Sociologist 31 Krugman 31 educational attainment 31 Kress 31 gerontologist 31 Silber 31 Entin