A5102936013- Insurance, Mortality, Demography, Risk Management
- Health disparities and outcomes
- Crime Patterns and Interventions
- Global Health Care Issues
- Psychological Well-being and Life Satisfaction
- demographic modeling and climate adaptation
- Income, Poverty, and Inequality
- Urban, Neighborhood, and Segregation Studies
- Crime, Illicit Activities, and Governance
- Birth, Development, and Health
- Statistical Methods and Bayesian Inference
- Early Childhood Education and Development
- Intergenerational Family Dynamics and Caregiving
- Demographic Trends and Gender Preferences
- Wildlife Conservation and Criminology Analyses
- Statistical Methods and Inference
- Genetics, Aging, and Longevity in Model Organisms
- Gender, Labor, and Family Dynamics
- Criminal Justice and Corrections Analysis
- Employment and Welfare Studies
- Census and Population Estimation
- Migration, Aging, and Tourism Studies
- Efficiency Analysis Using DEA
- Social Policy and Reform Studies
- Intergenerational and Educational Inequality Studies
Duke University
2016-2025
Social Science Research Council
2015-2025
Trinity College
2019
Center for Child and Family Health
2010-2017
California Institute of Technology
2016
University of North Carolina at Chapel Hill
2013
Peking University
2003-2010
Max Planck Institute for Demographic Research
2003-2010
Institute of Population and Public Health
2010
Crowell & Moring (United States)
2008-2010
Hayduk is equally at ease explaining the simplest and most advanced applications of program ...Hayduk has written more than just a solid text for use in graduate courses on statistical modeling. Those with firm mathematical background who wish to learn about approach, or those know little want more, will find this an excellent reference.
This study demonstrate that the empirical literature on structural convariates of homicide rates contains inconsistent findings across different time periods and geographical units. apparent variance may be due to statistical or methodological artifacts particular studies, such as covered, units analysis, samples, model specification, problems analysis inference. A baseline regression using 11 covariates is estimated for cities, metropolitan areas, states in 1960, 1970, 1980. The estimates...
This article addresses three issues that are central to the criminal career debate. First, is life course of individual offending patterns marked by distinctive periods quiescence? Second, at level individual, do rates vary systematically with age? In particular, age‐crime curve single peaked or flat? Third, chronic offenders different from less active offenders? Do themselves differ in systematic ways? Using a new approach analysis careers—based on nested, mixed Poisson models which mixing...
This study systematically tests a formal theory of how certain dimensions social stratification--income, race, and age--relate to risk predatory criminal victimization. An opportunity victimization is proposed, focusing on the mediating role played by five factors: exposure, guardianship, proximity potential offenders, attractiveness targets, definitional properties specific crimes themselves. Propositions are derived pertaining bivariate multivariate-partial (main) effects expected from...
Using annual time-series data for the United States, 1946-1982, two hypotheses are tested: (1) The level of unemployment rate in any given year will have a negative partial contemporaneous effect on detrendedfluctuations (increases or decreases) seven Index Crime rates (homicide, rape, aggravated assault, robbery, burglary, larceny-theft, and motor vehicle theft) that year. (2) Unemployment-rate fluctuationsfrom one to next positive detrended crime-rate fluctuations These developed from...
Sociologists have used for some time the methods of classical statistics in interpretation many varieties sociological data. However, due to lack a procedure incorporating statistical results into social theory, parameter estimates seldom had direct bearing on evaluation and reformulation theory. This state affairs has stimulated recent discussions linear causal models as bridging gap between theory one hand analysis other. Although variations emphasis exist, essential idea model involves...
Persons of low socioeconomic status are known to have reduced life expectancy. In a study the relation disability-free or active expectancy among older persons, we analyzed prospectively gathered data on 2219 blacks and 1838 whites who were 65 years age in Piedmont region North Carolina. We defined disability as inability perform independently one more basic functional activities such walking, bathing, dressing, eating, using toilet. For subgroups by sex, race, education, statistical models...
A new approach to the statistical estimation of age‐period‐cohort (APC) accounting models, called intrinsic estimator (IE), recently has been developed. This article (1) further describes IE algebraically, geometrically, and verbally, (2) reviews properties as a estimator, (3) provides model validation evidence for both from an empirical example simulation exercise, (4) relates coefficients those conventional constrained APC models using formal definitions estimability, hypothesis testing,...
The conceptualization and measurement of fear crime have received considerable attention in the research literature. Nevertheless, most sample surveys use indicators that only tap a general, cognitive assessment safety - assumed to represent violence. This article examines whether there are conceptually empirically distinct dimensions offear by comparing micro- macrolevel antecedents such which we call perceived risk with thosefor more emotionally based, burglary-specific fear. Hierarchical...
This article reviews questions about different categories of criminal careers, summarizes Poisson latent class regression models, describes procedures for evaluating the optimal number classes, and applies this methodology to data from male cohorts taken cities London, Philadelphia, Racine. Four classes offending careers is an appropriate London cohort, but five can be justified Philadelphia data. In case Racine cohorts, may detected 1942 1955 only four 1949 cohort. Despite varying numbers...
Yang and Land (2006) (forthcoming-b) developed a mixed (fixed random) effects model for the age–period–cohort (APC) analysis of micro data sets in form series repeated cross-section sample surveys that are increasingly available to demographers. The authors compare fixedversus random-effects specifications APC analysis. They use on verbal test scores from 15 cross sections General Social Survey (GSS), 1974 2000, substantive illustrations. Strengths weaknesses identified both random-...
Abstract Data envelopment analysis (DEA) is extended to the case of stochastic inputs and outputs through use chance‐constrained programming. The frontier envelops a given set observations ‘most time’. As an empirical illustration, we re‐examine pioneering 1981 study Program Follow Through by Charnes, Cooper Rhodes.
Age-period-cohort (APC) accounting models have long been objects of attention in statistical studies human populations. It is well known that the identification problem created by linear dependency age, period, and cohort (Period = Age + Cohort or P A C) presents a major methodological challenge to APC analysis, has widely addressed demography, epidemiology, statistics. This paper compares parameter estimates model fit statistics produced two solutions age-period-cohort models—namely,...
We develop a mixed (fixed and random effects) models approach to the age-period-cohort (AFC) analysis of micro data sets in form series repeated cross-section sample surveys that are increasingly available sociologists. This recognizes multilevel structure individual-level responses. As substantive illustration, we apply our proposed methodology on verbal test scores from 15 cross-sections General Social Survey, 1974–2000. These have been subject recent debates sociological literature. show...
This paper presents several macrodynamic social indicator models of post-World War II trends in robbery, burglary, and automobile theft rates for the United States. A theory ways wich changes criminal opportunity affect these Index Crime property crime is deveoped. Definitions postulates are presented from which we derive a main theorem states that, other things being equal, decrease density population physical locations that normally sites primary groups should lead to an increase...
Abstract Only two genome-wide significant loci associated with longevity have been identified so far, probably because of insufficient sample sizes centenarians, whose genomes may harbor genetic variants health and longevity. Here we report a association study (GWAS) Han Chinese size 2.7 times the largest previously published GWAS on centenarians. We 11 independent replicated in Southern-Northern regions China, including novel (rs2069837- IL6 ; rs2440012- ANKRD20A9P ) significance rest...
Specifications and moment properties of the univariate Poisson negative binomial distributions are briefly reviewed illustrated. Properties limitations corresponding poisson (gamma mixtures Poissons) regression models described. It is shown how a misspecification mixing distribution mixed model to accommodate hidden heterogeneity ascribable unobserved variables—although not affecting consistency maximum likelihood estimators mean rate parameter or its parameterization—can lead inflated t...
Recent contextual analyses of victimization survey data are extended by application hierarchical logistic model techniques. Using a multi‐stage sample 5,090 Seattle residents, we estimate models for individuals' risks violent crime and burglary as function both individual opportunity factors (routine activity personal lifestyle) indicators neighborhood social disorganization (neighborhood incivilities on conditions disorder, ethnic heterogeneity, density in terms residents strangers). Strong...
This study extends previous research on the effects of victimization in terms fear crime and constrained behavior by examining both micro- macrolevel factors. In particular, we address way which contextual indicators ambient risk can affect individuals' perceived lifestyles through main moderating effects—where latter cause individual-level factors perception routine activities to vary across residential communities. Results presented here suggest that increased levels (as indicated...