Young J Kim
Biographic Data
| ID | 3811486 |
|---|---|
| NAME | Young J Kim |
| GIVEN NAMES | Young J |
| FAMILY NAME | Kim |
| SIGNATURE | KIM Y J |
| AFFILIATIONS | Johns Hopkins University |
| ORCID | 0000-0001-8434-4561 |
| VERIFIED | No |
| TOTAL WORKS | 18 |
| TOTAL CITATIONS | 393 |
| AUTHOR COUNT | 18 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1978 |
| LATEST PUBLICATION YEAR | 2009 |
| H-INDEX | 8 |
Physical Women, Emotional Men: Gender and Sexual Satisfaction in Midlife
Sex after 40: Gender, ageism, and sexual partnering in midlife
The impact of fertility intentions on behavior: The case of sterilization
In this paper, we take a new approach to the question of whether or not intentions regarding future fertility affect fertility-related behavior. Our approach has three principal features: 1) it takes sterilization as its outcome, rather than pregnancy or birth; 2) it is based on a conceptual model in which fertility-related behavior is seen as determined by a long-range planning process, modified by unanticipated life course contingencies; and 3)…
On the Quantum and Tempo of Fertility: Limits to the Bongaarts-Feeney Adjustment
Family Demography, Social Theory, and Investment in Social Capital
The analytic models used by family demographers would be strengthened by the concept of social capital, placed in the context of social exchange theory. Using that concept to designate resources that emerge from social ties, the authors advance five propositions: 1) social capital is a multidimensional attribute of an individual; 2) the dimensions of social capital are the number of relationships a person has, their quality (strength), and the re…
Do Fertility Intentions Affect Fertility Behavior
Robert Schoen, Nan Marie Astone, Young J. Kim, Constance A. Nathanson, Jason M. Fields, Do Fertility Intentions Affect Fertility Behavior?, Journal of Marriage and Family, Vol. 61, No. 3 (Aug., 1999), pp. 790-799
Population momentum expresses population aging
Population momentum and population aging occur when an initially growing population experiences a reduction in fertility to replacement level. Conceptually and empirically, momentum and aging express the same change, albeit on different scales. Fundamentally, they are two manifestations of the underlying process of demographic transformation. We consider three measures of aging over the transition to stationarity: the increase in mean population …
Why Do Americans Want Children
FOR THE PAST HALF-CENTURY, demographers have been preoccupied with the issue of fertility reduction. In his influential book, Theory of Fertility Decline, Caldwell (1982: 350) asserted that fundamental challenge in the demographic field is explain the onset of fertility decline. The basic premise of Caldwell's wealth flows' theory is that high fertility has been economically advantageous to most families over most of human history,' because child…
Momentum and the growth-free segment of a population
In the scenario of a sudden drop in fertility to replacement level, Preston (1986) argued that the population segment under age T, the length of generation, remained growth-free. Here we first present a new relationship for the momentum of any observed population as the ratio of 1) the proportion of the observed population under the mean age at childbearing to 2) the proportion of its life table population under that mean age. We then use that re…
A measure of risk taking for young adolescents: Reliability and validity assessments
Components of change in adolescent fertility, 1971–1979
This article disaggregates change in adolescent fertility between 1971 and 1979 into four components: change in marriage patterns, in nonmarital sex, in pregnancy, and in birth. It also assesses quantitatively the relative contribution of each component to the change over time in two fertility outcomes: the probability of a nonmarital live birth and, given a live birth, the odds of its being nonmarital. The changes in the probability of sexual de…
The impact of the Mississippi Improved Child Health Project on prenatal care and low birthweight
A quasi-experimental, nonequivalent control group design was used to evaluate the Improved Child Health Projects in northwest Mississippi (ICHP1 and ICHP2). Control counties were selected for each project that on average were similar to ICHP counties on racial composition, median family income in 1970 and 1980, and number of births in 1978-79. The study population comprised all resident births in the ICHP and control counties during a pre-ICHP pe…
Examination of the generalized age distribution
The generalized age distribution for any population in continuous time obtained by Bennett and Horiuchi (1981) and Preston and Coale (1982) is derived in the discrete time formulation in the first part of this paper. Other expressions that follow from the age distribution in Preston-Coale are also presented in discrete time and age. Then the Preston-Coale procedure of using these expressions to estimate mortality when demographic data are defecti…
On the dynamics of populations with two age groups
By restricting the number of age groups to two and by introducing continued fractions, the dynamics of populations with deterministically changing vital rates are completely specified at all times. Explicit expressions for the sequence of the product of population projection matrices are given. From these, relative age distribution and reproductive values to any desired accuracy are obtained as functions of the vital rates. Thus, the results give…
Decomposition of the difference between two rates with hierarchical factors
A decomposition method for the difference between two rates when data are classified by two factors, one of which may be considered as a more direct factor than the other for the event under consideration, is presented in this paper. The two factors are treated as hierarchical and thus this method is conceptually different from the decomposition methods of Kitagawa (1955) and Das Gupta (1978), in which two factors are treated as symmetrical. Our …
Oral Contraception in Bangladesh
In rural Bangladesh, the continuation rate of oral contraceptives (OCs) is the lowest among all methods except for condoms, and the pregnancy rate for OC users is comparable to that for users of traditional methods, which lies halfway between that for foam and condom users (high) and Depo-Provera and IUD users (low). To determine why postpartum amenorrheic OC acceptors have shorter pregnancy intervals than postamenorrheic OC acceptors who were ma…
The Effect on Fecundity of Pill Acceptance During Postpartum Amenorrhea in Rural Bangladesh
The length of the interval from last live birth to the subsequent pregnancy was studied for 121 contraceptive pill acceptors who were in postpartum amenorrhea at the time of acceptance and 121 matched nonacceptors in a prospective study in Matlab, Bangladesh. Half of the pill acceptors discontinued use within seven months, and as a group the pill acceptors had a significantly shorter interval to the next pregnancy than the matched nonacceptors. T…
Dynamics of some special populations with NRR = 1
We discuss two special cases of population dynamics with changing vital rates subject to the constraint NRR = I and consider the specifics of ergodicity and stationarity. By restricting the number of age groups to two, we can make explicit the way weak ergodicity works. When mortality is constant and the period NRR = I, a life-table stationary population eventually results; everything of demographic interest (except age-specific fertility and the…
Do Fertility Intentions Affect Fertility Behavior
Robert Schoen, Nan Marie Astone, Young J. Kim, Constance A. Nathanson, Jason M. Fields, Do Fertility Intentions Affect Fertility Behavior?, Journal of Marriage and Family, Vol. 61, No. 3 (Aug., 1999), pp. 790-799
Why Do Americans Want Children
FOR THE PAST HALF-CENTURY, demographers have been preoccupied with the issue of fertility reduction. In his influential book, Theory of Fertility Decline, Caldwell (1982: 350) asserted that fundamental challenge in the demographic field is explain the onset of fertility decline. The basic premise of Caldwell's wealth flows' theory is that high fertility has been economically advantageous to most families over most of human history,' because child…
Family Demography, Social Theory, and Investment in Social Capital
The analytic models used by family demographers would be strengthened by the concept of social capital, placed in the context of social exchange theory. Using that concept to designate resources that emerge from social ties, the authors advance five propositions: 1) social capital is a multidimensional attribute of an individual; 2) the dimensions of social capital are the number of relationships a person has, their quality (strength), and the re…
Sex after 40: Gender, ageism, and sexual partnering in midlife
Physical Women, Emotional Men: Gender and Sexual Satisfaction in Midlife
On the Quantum and Tempo of Fertility: Limits to the Bongaarts-Feeney Adjustment
A measure of risk taking for young adolescents: Reliability and validity assessments
Decomposition of the difference between two rates with hierarchical factors
A decomposition method for the difference between two rates when data are classified by two factors, one of which may be considered as a more direct factor than the other for the event under consideration, is presented in this paper. The two factors are treated as hierarchical and thus this method is conceptually different from the decomposition methods of Kitagawa (1955) and Das Gupta (1978), in which two factors are treated as symmetrical. Our …
Population momentum expresses population aging
Population momentum and population aging occur when an initially growing population experiences a reduction in fertility to replacement level. Conceptually and empirically, momentum and aging express the same change, albeit on different scales. Fundamentally, they are two manifestations of the underlying process of demographic transformation. We consider three measures of aging over the transition to stationarity: the increase in mean population …
Components of change in adolescent fertility, 1971–1979
This article disaggregates change in adolescent fertility between 1971 and 1979 into four components: change in marriage patterns, in nonmarital sex, in pregnancy, and in birth. It also assesses quantitatively the relative contribution of each component to the change over time in two fertility outcomes: the probability of a nonmarital live birth and, given a live birth, the odds of its being nonmarital. The changes in the probability of sexual de…
Momentum and the growth-free segment of a population
In the scenario of a sudden drop in fertility to replacement level, Preston (1986) argued that the population segment under age T, the length of generation, remained growth-free. Here we first present a new relationship for the momentum of any observed population as the ratio of 1) the proportion of the observed population under the mean age at childbearing to 2) the proportion of its life table population under that mean age. We then use that re…
Examination of the generalized age distribution
The generalized age distribution for any population in continuous time obtained by Bennett and Horiuchi (1981) and Preston and Coale (1982) is derived in the discrete time formulation in the first part of this paper. Other expressions that follow from the age distribution in Preston-Coale are also presented in discrete time and age. Then the Preston-Coale procedure of using these expressions to estimate mortality when demographic data are defecti…
Oral Contraception in Bangladesh
In rural Bangladesh, the continuation rate of oral contraceptives (OCs) is the lowest among all methods except for condoms, and the pregnancy rate for OC users is comparable to that for users of traditional methods, which lies halfway between that for foam and condom users (high) and Depo-Provera and IUD users (low). To determine why postpartum amenorrheic OC acceptors have shorter pregnancy intervals than postamenorrheic OC acceptors who were ma…
Dynamics of some special populations with NRR = 1
We discuss two special cases of population dynamics with changing vital rates subject to the constraint NRR = I and consider the specifics of ergodicity and stationarity. By restricting the number of age groups to two, we can make explicit the way weak ergodicity works. When mortality is constant and the period NRR = I, a life-table stationary population eventually results; everything of demographic interest (except age-specific fertility and the…
The impact of the Mississippi Improved Child Health Project on prenatal care and low birthweight
A quasi-experimental, nonequivalent control group design was used to evaluate the Improved Child Health Projects in northwest Mississippi (ICHP1 and ICHP2). Control counties were selected for each project that on average were similar to ICHP counties on racial composition, median family income in 1970 and 1980, and number of births in 1978-79. The study population comprised all resident births in the ICHP and control counties during a pre-ICHP pe…
On the dynamics of populations with two age groups
By restricting the number of age groups to two and by introducing continued fractions, the dynamics of populations with deterministically changing vital rates are completely specified at all times. Explicit expressions for the sequence of the product of population projection matrices are given. From these, relative age distribution and reproductive values to any desired accuracy are obtained as functions of the vital rates. Thus, the results give…
The Effect on Fecundity of Pill Acceptance During Postpartum Amenorrhea in Rural Bangladesh
The length of the interval from last live birth to the subsequent pregnancy was studied for 121 contraceptive pill acceptors who were in postpartum amenorrhea at the time of acceptance and 121 matched nonacceptors in a prospective study in Matlab, Bangladesh. Half of the pill acceptors discontinued use within seven months, and as a group the pill acceptors had a significantly shorter interval to the next pregnancy than the matched nonacceptors. T…
Dynamics of some special populations with NRR = 1
We discuss two special cases of population dynamics with changing vital rates subject to the constraint NRR = I and consider the specifics of ergodicity and stationarity. By restricting the number of age groups to two, we can make explicit the way weak ergodicity works. When mortality is constant and the period NRR = I, a life-table stationary population eventually results; everything of demographic interest (except age-specific fertility and the…
The Effect on Fecundity of Pill Acceptance During Postpartum Amenorrhea in Rural Bangladesh
The length of the interval from last live birth to the subsequent pregnancy was studied for 121 contraceptive pill acceptors who were in postpartum amenorrhea at the time of acceptance and 121 matched nonacceptors in a prospective study in Matlab, Bangladesh. Half of the pill acceptors discontinued use within seven months, and as a group the pill acceptors had a significantly shorter interval to the next pregnancy than the matched nonacceptors. T…
Decomposition of the difference between two rates with hierarchical factors
A decomposition method for the difference between two rates when data are classified by two factors, one of which may be considered as a more direct factor than the other for the event under consideration, is presented in this paper. The two factors are treated as hierarchical and thus this method is conceptually different from the decomposition methods of Kitagawa (1955) and Das Gupta (1978), in which two factors are treated as symmetrical. Our …
Oral Contraception in Bangladesh
In rural Bangladesh, the continuation rate of oral contraceptives (OCs) is the lowest among all methods except for condoms, and the pregnancy rate for OC users is comparable to that for users of traditional methods, which lies halfway between that for foam and condom users (high) and Depo-Provera and IUD users (low). To determine why postpartum amenorrheic OC acceptors have shorter pregnancy intervals than postamenorrheic OC acceptors who were ma…
On the dynamics of populations with two age groups
By restricting the number of age groups to two and by introducing continued fractions, the dynamics of populations with deterministically changing vital rates are completely specified at all times. Explicit expressions for the sequence of the product of population projection matrices are given. From these, relative age distribution and reproductive values to any desired accuracy are obtained as functions of the vital rates. Thus, the results give…
The impact of the Mississippi Improved Child Health Project on prenatal care and low birthweight
A quasi-experimental, nonequivalent control group design was used to evaluate the Improved Child Health Projects in northwest Mississippi (ICHP1 and ICHP2). Control counties were selected for each project that on average were similar to ICHP counties on racial composition, median family income in 1970 and 1980, and number of births in 1978-79. The study population comprised all resident births in the ICHP and control counties during a pre-ICHP pe…
Examination of the generalized age distribution
The generalized age distribution for any population in continuous time obtained by Bennett and Horiuchi (1981) and Preston and Coale (1982) is derived in the discrete time formulation in the first part of this paper. Other expressions that follow from the age distribution in Preston-Coale are also presented in discrete time and age. Then the Preston-Coale procedure of using these expressions to estimate mortality when demographic data are defecti…
Components of change in adolescent fertility, 1971–1979
This article disaggregates change in adolescent fertility between 1971 and 1979 into four components: change in marriage patterns, in nonmarital sex, in pregnancy, and in birth. It also assesses quantitatively the relative contribution of each component to the change over time in two fertility outcomes: the probability of a nonmarital live birth and, given a live birth, the odds of its being nonmarital. The changes in the probability of sexual de…
A measure of risk taking for young adolescents: Reliability and validity assessments
Momentum and the growth-free segment of a population
In the scenario of a sudden drop in fertility to replacement level, Preston (1986) argued that the population segment under age T, the length of generation, remained growth-free. Here we first present a new relationship for the momentum of any observed population as the ratio of 1) the proportion of the observed population under the mean age at childbearing to 2) the proportion of its life table population under that mean age. We then use that re…
Population momentum expresses population aging
Population momentum and population aging occur when an initially growing population experiences a reduction in fertility to replacement level. Conceptually and empirically, momentum and aging express the same change, albeit on different scales. Fundamentally, they are two manifestations of the underlying process of demographic transformation. We consider three measures of aging over the transition to stationarity: the increase in mean population …
Why Do Americans Want Children
FOR THE PAST HALF-CENTURY, demographers have been preoccupied with the issue of fertility reduction. In his influential book, Theory of Fertility Decline, Caldwell (1982: 350) asserted that fundamental challenge in the demographic field is explain the onset of fertility decline. The basic premise of Caldwell's wealth flows' theory is that high fertility has been economically advantageous to most families over most of human history,' because child…
Family Demography, Social Theory, and Investment in Social Capital
The analytic models used by family demographers would be strengthened by the concept of social capital, placed in the context of social exchange theory. Using that concept to designate resources that emerge from social ties, the authors advance five propositions: 1) social capital is a multidimensional attribute of an individual; 2) the dimensions of social capital are the number of relationships a person has, their quality (strength), and the re…
Do Fertility Intentions Affect Fertility Behavior
Robert Schoen, Nan Marie Astone, Young J. Kim, Constance A. Nathanson, Jason M. Fields, Do Fertility Intentions Affect Fertility Behavior?, Journal of Marriage and Family, Vol. 61, No. 3 (Aug., 1999), pp. 790-799
The impact of fertility intentions on behavior: The case of sterilization
In this paper, we take a new approach to the question of whether or not intentions regarding future fertility affect fertility-related behavior. Our approach has three principal features: 1) it takes sterilization as its outcome, rather than pregnancy or birth; 2) it is based on a conceptual model in which fertility-related behavior is seen as determined by a long-range planning process, modified by unanticipated life course contingencies; and 3)…
On the Quantum and Tempo of Fertility: Limits to the Bongaarts-Feeney Adjustment
Sex after 40: Gender, ageism, and sexual partnering in midlife
Physical Women, Emotional Men: Gender and Sexual Satisfaction in Midlife
Demography (11 works) · Sociology (11 works) · Population (10 works) · Demography (8 works) · Fertility (6 works) · Medicine (6 works) · Psychology (6 works) · Economics (5 works) · Family Dynamics and Relationships (5 works) · Research methodology (5 works)