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Author: Huang, Ying

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1.	Huang, Ying
1.	An Econometric Study of the Impact of Economic Variables on Adult Obesity and Food Assistance Program Participation in the NLSY Panel Ph.D. Dissertation, Department of Economics, Iowa State University, 2012 Cohort(s): NLSY79 Publisher: ProQuest Dissertations & Theses (PQDT) Keyword(s): Body Mass Index (BMI); Food Stamps (see Supplemental Nutrition Assistance Program); Geocoded Data; Obesity; Weight Permission to reprint the abstract has not been received from the publisher. The objective of this research is to identify the factors that influence adults’ healthy weight, as reflected in body mass index (BMI) or being obese (having a body mass index of 30 or larger), the Food Stamp Program (or Supplemental Nutrition Assistance Program) participation, and the relationship of these two in longitudinal panel data. The panel data was obtained by merging the individual-level national data for the U.S. adults from the National Longitudinal Survey of the Youth, 1979 Cohort (NLSY79), with external price data obtained from the American Chamber of Commerce Research Association (ACCRA) Cost of Living Index. Six rounds of NLSY79 survey were extracted at a 4-year interval from 1986 to 2006. Using the geocode information, the secondary data on local food, drinks and health care prices and labor market conditions were merged with the data on adults in the NLSY79.
	Bibliography Citation Huang, Ying. An Econometric Study of the Impact of Economic Variables on Adult Obesity and Food Assistance Program Participation in the NLSY Panel. Ph.D. Dissertation, Department of Economics, Iowa State University, 2012.

2.	Huang, Ying Huffman, Wallace Edgar
2.	Life Cycle Models of Women's BMI and Probability of Being Obese: Evidence from Panel Data Agricultural Economics 50,4 (July 2019): 509-524. Also: https://onlinelibrary.wiley.com/doi/10.1111/agec.12506 Cohort(s): NLSY79 Publisher: Wiley Online Keyword(s): Body Mass Index (BMI); Food Stamps (see Supplemental Nutrition Assistance Program); Life Cycle Research; Obesity Permission to reprint the abstract has not been received from the publisher. The objective of this paper is to develop a multi‐period, finite‐life, life cycle models of household decisions on food, leisure, and health (body mass index or being obese), and to estimate econometric versions of these models treating SNAP (Supplemental Nutrition Assistance Program) participation as endogenous. A key insight from the economic models is that households allocate their wealth over the multi‐period life cycle to equalize the marginal utility of wealth in each period. The observations for this study are a balanced‐panel of over 1,600 women from the National Longitudinal Survey of Youth, 1979 Cohort (NLSY79). We focus on the 20‐year period starting in 1986, when SNAP data first became available. Women of all ages are included in the study because at the beginning of adulthood, women cannot accurately predict over their life cycle labor and marriage market and health shocks that can thrust them into an economic position where they would qualify for SNAP. New findings include that a woman's household SNAP participation with or without updating for last periods health status and higher local dairy product prices reduce significantly her BMI and probability of being obese.
	Bibliography Citation Huang, Ying and Wallace Edgar Huffman. "Life Cycle Models of Women's BMI and Probability of Being Obese: Evidence from Panel Data." Agricultural Economics 50,4 (July 2019): 509-524.

3.	Huang, Ying Huffman, Wallace Edgar Tegene, Abebayehu
3.	Impacts of Economic and Psychological Factors on Women’s Obesity and Food Assistance Program Participation: Evidence from the NLSY Panel American Journal of Agricultural Economics 94, 2 (January 2012): 331-337. Also: http://ajae.oxfordjournals.org/content/94/2/331.abstract Cohort(s): NLSY79 Publisher: Oxford University Press Keyword(s): Body Mass Index (BMI); Data Linkage (also see Record Linkage); Food Stamps (see Supplemental Nutrition Assistance Program); Nutritional Status/Nutrition/Consumption Behaviors; Obesity; Regions; Rosenberg Self-Esteem Scale (RSES) (see Self-Esteem); Rotter Scale (see Locus of Control) Permission to reprint the abstract has not been received from the publisher. Over the past thirty-five years, the U.S. adult obesity rate has more than doubled from roughly 15% to 35%, reflecting a general diffusion of obesity across all segments of the adult population (USDHHS). Obesity is a concern because it increases the risk for cardiovascular diseases, diabetes, and most forms of cancer, except for lung. Earlier studies of obesity of U.S. adults have largely focused on data in a single cross-section or one round of a panel survey. Chen and Huffman (2010) show that food and drink prices significantly affect U.S. women’s probability of being obese but not for men. However, the impact of individual food and drink prices are not always as expected. © The Author (2011). Published by Oxford University Press on behalf of the Agricultural and Applied Economics Association. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com
	Bibliography Citation Huang, Ying, Wallace Edgar Huffman and Abebayehu Tegene. "Impacts of Economic and Psychological Factors on Women’s Obesity and Food Assistance Program Participation: Evidence from the NLSY Panel." American Journal of Agricultural Economics 94, 2 (January 2012): 331-337.

4.	Huang, Ying Zhang, Weihui
4.	The Earning of Immigrant Young Adults: Analysis Within and Across Cohorts Presented: Washington DC, Association for Public Policy Analysis and Management (APPAM) Annual Fall Research Conference, November 2016 Cohort(s): NLSY79 Publisher: Association for Public Policy Analysis and Management (APPAM) Keyword(s): Earnings; Immigrants; National Longitudinal Study of Adolescent Health (AddHealth) Permission to reprint the abstract has not been received from the publisher. In this study, we use two nationally representative cohorts--the National Longitudinal Study of Youth (NLSY79) and the National Longitudinal Study of Adolescent to Adult Health (Add Health)--to examine the effects of generation and duration of residence on their earnings in the first few years upon their entrance of labor market. We exploit the cohort design of these two data sources to investigate the role of compositional changes (at micro-level) and structural changes (at the macro-level) play in affecting the economic achievement of immigrant youth and young adults, the second generation immigrants, and their native peers. Our approach to immigrants' economic attainment is guided by contemporary discussions of policies on immigration and immigrants in the United States. Our goal is to provide a greater understanding of how immigrant and second-generation youths progress through the initial stages of the labor market experience.
	Bibliography Citation Huang, Ying and Weihui Zhang. "The Earning of Immigrant Young Adults: Analysis Within and Across Cohorts." Presented: Washington DC, Association for Public Policy Analysis and Management (APPAM) Annual Fall Research Conference, November 2016.

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