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The Yun Kim Population Research Laboratory

Mision Statement

Since its inception in 1968, The Yun Kim Population Research Laboratory (PRL) has served as a center for demographic research and training at Utah State University. Today, the primary mission of the PRL is to stimulate and support quality scientifc research on a range of population issues affecting our state, nation and world. Research productivity among our faculty facilitates another key mission of the PRL – to train and mentor the next generation of applied demographers and population scholars through the M.S. and Ph.D. programs in Sociology. Through seminars and research support, the PRL serves to create a vibrant community of population scholars at Utah State University.

Department Affiliations

  • Department of Sociology, Social Work and Anthropology
  • Department of Family, Consumer, and Human Development
  • Department of Environment and Society
  • Department of Health, Physical Education and Recreation
  • Department of Nutrition, Dietetics, and Food Sciences
  • Department of Mathematics and Statistics

Key Areas of Research

  • S. and International Migration
  • Population Health and Quality of Life
  • Mortality Determinants and Longevity Forecasts
  • Social Inequality and Health Disparities
  • Social Determinants of Obesity
  • Family Challenges Facing the U.S. and Southeast Asia
  • The Demographic Consequences of Labor Market Disruptions

 Research Projects


  • The impact of obesity on mortality among U.S. adults
  • Associations between job quality and divorce risks
  • Aging, ethnicity and land use change in rural communities
  • Gendered immigration patterns in new U.S. destinations
  • Mother’s nonstandard employment and children’s health Sleep deprivation and dietary choices among U.S. adolescents
  • The impact of “bad jobs” on marriage
  • Ethnic variation in associations between short sleep duration and obesity among U.S. adolescents


  • The Great Recession, its aftermath, and patterns of rural population change
  • Ethnic disparities in influenza vaccination rates
  • Early family building behaviors and subsequent well-being
  • The impact of educational attainment on type-2 diabetes
  • Determinants of overweight and obesity among adolescents


People, power and conflict in the Eurasian migration system

  • Marriage and women’s health in Japan
  • The effects of education on labor force transitions among married women in Japan
  • Age, period and cohort effects on suicide mortality in Japan and South Korea
  • Gender ideology, migration decisions, and destination selection in the Republic of Georgia
  • Educational differences in early childbearing: a cross-national comparative study
  • Infant mortality in Kyrgyzstan before and after the dissolution of the Soviet Union


Funding Sources

  • National Institutes of Health (NIH)
  • National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
  • United States Department of Agriculture (USDA) • Utah Agricultural Experiment Station (UAES)
  • The Yun Kim Population Research Laboratory Endowment
  • The Yun and Wendy Kim Fellowship in Population Studies Organizational Collaborations
  • Bureau of Intelligence and Research, US Department of State
  • Utah Population Estimates Committee
  • Governor’s Offce of Management and Budget
  • Utah Agricultural Experiment Station
  • Utah State Data Center

In the News

“Heavy in School, Burdened for Life,” The New York Times, June 2, 2011

“Obesity may stem longevity in future,” United Press International, June 23, 2011

 “Long live the fat American,” The Economist, June 30, 2011

 “Sleep Deprivation in Teens Linked to Poor Dietary Choices,” Science Daily, June 20, 2013

“Heavy burden: Obesity may be even deadlier than thought,” NBC Nightly News, August 15, 2013

“Weighing the Evidence: Studies Collide over How Aging Impacts Obesity Risk,” Scientifc American, August 23, 2013

 “Poverty-Obesity Link is More Prevalent for Women Than Men,” UT News, September 15, 2014