Prithwis Das Gupta
Biographic Data
| ID | 772466 |
|---|---|
| NAME | Prithwis Das Gupta |
| GIVEN NAMES | Prithwis |
| FAMILY NAME | Das Gupta |
| SIGNATURE | DAS GUPTA P |
| AFFILIATIONS | Department of Sociology, University of Alabama, P. O. Box 6109, University, Alabama 35486 |
| VERIFIED | No |
| TOTAL WORKS | 15 |
| TOTAL CITATIONS | 61 |
| AUTHOR COUNT | 15 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 1971 |
| LATEST PUBLICATION YEAR | 2007 |
| H-INDEX | 4 |
Demographic Techniques: Decomposition and Standardization
Demographers are often interested in comparing rates (e.g., birth rates, mortality rates) in populations cross‐nationally and/or over time. Interpreting difference between rates requires an understanding of the various factors that comprise that rate. Crude birth rates, for example, depend not just on the fertility of women of childbearing age, but also the proportion of the population that consists of such women. In such cases, in which the over…
How do we interpret the recent dramatic increase in the time to earn a Ph.D
A 1962 recipient of a Ph.D. was an average of 10.13 years from receipt of a B.A.; a 1992 recipient was an average of 12.55 years. Some authors have suggested that if the B.A.-year cohorts were compared instead of the Ph.D.-year cohorts, the average time to earn a Ph.D. would not show such a drastic increase. The author recognizes the problem with the Ph.D.-year data, but uses these data with a standardization-decomposition technique to show that …
A regression approach to the projection of U.S. fertility based on past fertility data
The method of fertility projection used by the U.S. Bureau of the Census involves assumptions about the ultimate cohort total fertility rate and the ultimate cohort mean age at childbearing based on recent levels of fertility and women's birth expectations. This paper provides an outline of a general regression approach to fertility projection based on past data which would generate these two ultimate cohort characteristics. The technique is illu…
A note on the consistency of life tables for total populations with those for their subpopulations
The life table for the total population, when constructed from the overall age‐specific mortality rates, becomes inconsistent with the life tables for its between‐heterogeneous subpopulations. The consistent life table for the total population can be derived from those for the subpopulations, when the latter are constructed with radixes proportional to the distribution of these subpopulations at birth. As an example, this consistency approach is …
Comment on suzanne M. Bianchi and Nancy Rytina’s “the decline in occupational sex segregation during the 1970s: Census and CPS comparisons”
In their article, Bianchi and Rytina (1986) studied occupational sex segregation using the index of dissimilarity. They also decomposed the difference between the indexes of dissimilarity for two time periods into three components, namely, the effect of change in the occupational structure (called Mix), the effect of change in the occupational sex segregation (called Comp), and the interaction between these two effects, which they found by subtra…
A general method of decomposing a difference between two rates into several components
In her work on the components of a difference between two rates, Kitagawa (1955) was successful in dividing the difference into the rate effect and the effect of the factor, for data classified by one factor. Her formulation for data classified by two factors, however, involves an interaction term which is difficult to interpret. Retherford and Cho (1973) devised a method that does not include any interaction terms. However, their method has othe…
Reply [to Ön the Time Series of American Fertility]
An alternative formulation of the birth function in a two-sex model
The inconsistency in Lotka's stable population model (two different intrinsic growth rates for the two sexes) arises from the fact that he considers two equations (for male and female births), and not because his equation for one sex does not involve the other. Many authors in the past have erroneously put emphasis on the latter point and modified Lotka's equations for male and female births. Since sex ratio at birth is constant, two independent …
A period analysis of parity distribution among white and nonwhite women in the United States, 1940–1974
The historical trends of childlessness and of one‐child, two‐child, and three‐or‐more‐child families among white and nonwhite women in the United States are studied in terms of period fertility tables. Given the age and parity of a woman, we can read from the fertility tables how her parity is expected to change at successive ages during the rest of her childbearing period, if she is subjected to the age‐parity‐specific fertility rates for a part…
A method of computing period rates of spinsterhood and childlessness from census data applied to the United States
Reproductive Motivation Versus Contraceptive Technology: Is Recent American Experience an Exception
Judith Blake, Prithwis Das Gupta, Reproductive Motivation Versus Contraceptive Technology: Is Recent American Experience an Exception?, Population and Development Review, Vol. 1, No. 2 (Dec., 1975), pp. 229-249
Growth of U.S. population, 1940–1971, in the light of an interactive two-sex model
Since it is logically impossible to hold constant both male and female age-specific fertility rates, the intrinsic growth rates or the net reproduction rates for males and females, based on that assumption, are internally inconsistent. The interactive two-sex model presented in this paper holds constant a set of bivariate age-specific fertility rates by age of men and women and allows the male and female age-specific fertility rates to adjust the…
Reply to cutright and Osborn
We are delighted that our paper has stimulated thought and discussion. Indeed, one of its purposes was to bring into prominence the need for more hard data on which to base population policy. We had hoped to arouse exasperation with the little information available to demographers in relation to the policy demands made upon them, and we have succeeded. We could wish, however, that our commentators had devoted themselves to careful critiques of ou…
The fallacy of the five million women: A re-estimate
Explicit policy to control fertility in the United States to date has focussed on the “unmet need” for contraceptive services in 1966 among an estimated five million poor and near-poor women. This paper reestimates the number of women in need of contraceptive services by disaggregating (on the basis of tabulations from the Current Population Surveys for 1966 and 1967, and the 1965 National Fertility Study) all poor and near-poor women into 54 sub…
Estimation of demographic measures for India, 1881-1961, based on census age distributions
India is one of the very few developing countries which have a relatively long history of population censuses. The first census was taken in 1872, the second in 1881 and since then there has been a census every ten years, the latest in 1971. Yet the registration of births and deaths in India, even at the present time, is too inadequate to be of much help in estimating fertility and mortality conditions in the country. From time to time Indian cen…
A general method of decomposing a difference between two rates into several components
In her work on the components of a difference between two rates, Kitagawa (1955) was successful in dividing the difference into the rate effect and the effect of the factor, for data classified by one factor. Her formulation for data classified by two factors, however, involves an interaction term which is difficult to interpret. Retherford and Cho (1973) devised a method that does not include any interaction terms. However, their method has othe…
Reproductive Motivation Versus Contraceptive Technology: Is Recent American Experience an Exception
Judith Blake, Prithwis Das Gupta, Reproductive Motivation Versus Contraceptive Technology: Is Recent American Experience an Exception?, Population and Development Review, Vol. 1, No. 2 (Dec., 1975), pp. 229-249
Growth of U.S. population, 1940–1971, in the light of an interactive two-sex model
Since it is logically impossible to hold constant both male and female age-specific fertility rates, the intrinsic growth rates or the net reproduction rates for males and females, based on that assumption, are internally inconsistent. The interactive two-sex model presented in this paper holds constant a set of bivariate age-specific fertility rates by age of men and women and allows the male and female age-specific fertility rates to adjust the…
The fallacy of the five million women: A re-estimate
Explicit policy to control fertility in the United States to date has focussed on the “unmet need” for contraceptive services in 1966 among an estimated five million poor and near-poor women. This paper reestimates the number of women in need of contraceptive services by disaggregating (on the basis of tabulations from the Current Population Surveys for 1966 and 1967, and the 1965 National Fertility Study) all poor and near-poor women into 54 sub…
Reply [to Ön the Time Series of American Fertility]
An alternative formulation of the birth function in a two-sex model
The inconsistency in Lotka's stable population model (two different intrinsic growth rates for the two sexes) arises from the fact that he considers two equations (for male and female births), and not because his equation for one sex does not involve the other. Many authors in the past have erroneously put emphasis on the latter point and modified Lotka's equations for male and female births. Since sex ratio at birth is constant, two independent …
A method of computing period rates of spinsterhood and childlessness from census data applied to the United States
Estimation of demographic measures for India, 1881-1961, based on census age distributions
India is one of the very few developing countries which have a relatively long history of population censuses. The first census was taken in 1872, the second in 1881 and since then there has been a census every ten years, the latest in 1971. Yet the registration of births and deaths in India, even at the present time, is too inadequate to be of much help in estimating fertility and mortality conditions in the country. From time to time Indian cen…
Estimation of demographic measures for India, 1881-1961, based on census age distributions
India is one of the very few developing countries which have a relatively long history of population censuses. The first census was taken in 1872, the second in 1881 and since then there has been a census every ten years, the latest in 1971. Yet the registration of births and deaths in India, even at the present time, is too inadequate to be of much help in estimating fertility and mortality conditions in the country. From time to time Indian cen…
The fallacy of the five million women: A re-estimate
Explicit policy to control fertility in the United States to date has focussed on the “unmet need” for contraceptive services in 1966 among an estimated five million poor and near-poor women. This paper reestimates the number of women in need of contraceptive services by disaggregating (on the basis of tabulations from the Current Population Surveys for 1966 and 1967, and the 1965 National Fertility Study) all poor and near-poor women into 54 sub…
Growth of U.S. population, 1940–1971, in the light of an interactive two-sex model
Since it is logically impossible to hold constant both male and female age-specific fertility rates, the intrinsic growth rates or the net reproduction rates for males and females, based on that assumption, are internally inconsistent. The interactive two-sex model presented in this paper holds constant a set of bivariate age-specific fertility rates by age of men and women and allows the male and female age-specific fertility rates to adjust the…
Reply to cutright and Osborn
We are delighted that our paper has stimulated thought and discussion. Indeed, one of its purposes was to bring into prominence the need for more hard data on which to base population policy. We had hoped to arouse exasperation with the little information available to demographers in relation to the policy demands made upon them, and we have succeeded. We could wish, however, that our commentators had devoted themselves to careful critiques of ou…
A method of computing period rates of spinsterhood and childlessness from census data applied to the United States
Reproductive Motivation Versus Contraceptive Technology: Is Recent American Experience an Exception
Judith Blake, Prithwis Das Gupta, Reproductive Motivation Versus Contraceptive Technology: Is Recent American Experience an Exception?, Population and Development Review, Vol. 1, No. 2 (Dec., 1975), pp. 229-249
A period analysis of parity distribution among white and nonwhite women in the United States, 1940–1974
The historical trends of childlessness and of one‐child, two‐child, and three‐or‐more‐child families among white and nonwhite women in the United States are studied in terms of period fertility tables. Given the age and parity of a woman, we can read from the fertility tables how her parity is expected to change at successive ages during the rest of her childbearing period, if she is subjected to the age‐parity‐specific fertility rates for a part…
A general method of decomposing a difference between two rates into several components
In her work on the components of a difference between two rates, Kitagawa (1955) was successful in dividing the difference into the rate effect and the effect of the factor, for data classified by one factor. Her formulation for data classified by two factors, however, involves an interaction term which is difficult to interpret. Retherford and Cho (1973) devised a method that does not include any interaction terms. However, their method has othe…
Reply [to Ön the Time Series of American Fertility]
An alternative formulation of the birth function in a two-sex model
The inconsistency in Lotka's stable population model (two different intrinsic growth rates for the two sexes) arises from the fact that he considers two equations (for male and female births), and not because his equation for one sex does not involve the other. Many authors in the past have erroneously put emphasis on the latter point and modified Lotka's equations for male and female births. Since sex ratio at birth is constant, two independent …
Comment on suzanne M. Bianchi and Nancy Rytina’s “the decline in occupational sex segregation during the 1970s: Census and CPS comparisons”
In their article, Bianchi and Rytina (1986) studied occupational sex segregation using the index of dissimilarity. They also decomposed the difference between the indexes of dissimilarity for two time periods into three components, namely, the effect of change in the occupational structure (called Mix), the effect of change in the occupational sex segregation (called Comp), and the interaction between these two effects, which they found by subtra…
A note on the consistency of life tables for total populations with those for their subpopulations
The life table for the total population, when constructed from the overall age‐specific mortality rates, becomes inconsistent with the life tables for its between‐heterogeneous subpopulations. The consistent life table for the total population can be derived from those for the subpopulations, when the latter are constructed with radixes proportional to the distribution of these subpopulations at birth. As an example, this consistency approach is …
A regression approach to the projection of U.S. fertility based on past fertility data
The method of fertility projection used by the U.S. Bureau of the Census involves assumptions about the ultimate cohort total fertility rate and the ultimate cohort mean age at childbearing based on recent levels of fertility and women's birth expectations. This paper provides an outline of a general regression approach to fertility projection based on past data which would generate these two ultimate cohort characteristics. The technique is illu…
How do we interpret the recent dramatic increase in the time to earn a Ph.D
A 1962 recipient of a Ph.D. was an average of 10.13 years from receipt of a B.A.; a 1992 recipient was an average of 12.55 years. Some authors have suggested that if the B.A.-year cohorts were compared instead of the Ph.D.-year cohorts, the average time to earn a Ph.D. would not show such a drastic increase. The author recognizes the problem with the Ph.D.-year data, but uses these data with a standardization-decomposition technique to show that …
Demographic Techniques: Decomposition and Standardization
Demographers are often interested in comparing rates (e.g., birth rates, mortality rates) in populations cross‐nationally and/or over time. Interpreting difference between rates requires an understanding of the various factors that comprise that rate. Crude birth rates, for example, depend not just on the fertility of women of childbearing age, but also the proportion of the population that consists of such women. In such cases, in which the over…
Demography (13 works) · Sociology (13 works) · Population (11 works) · Mathematics (9 works) · Statistics (9 works) · Demography (8 works) · Fertility (8 works) · Computer Science (7 works) · Insurance, Mortality, Demography, Risk Management (6 works) · Research methodology (6 works)