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Journal Article
Demography (1998) 35 (4): 497–504.
Published: 01 November 1998
... (1998) levels against our log-multiplicative approach are likewise unconvincing. We demonstrate that our preferred models pass the test of organizational equivalence, that the “problem⤎ of zero cells can be solved by applying well-developed methods for ransacking incomplete or sparse tables...
Journal Article
Demography (1981) 18 (4): 645–658.
Published: 01 November 1981
... in this investigation involves comparisons of the Chi-Square statistics themselves. The resulting Chi-Square statistics are presented in Table 1.2 As Figure 13 illus- trates, none of the complete distributions fits the data, even approximately. In each case most ofthe lack offit occurs at the zero cell; as an artifact...
Journal Article
Demography (1975) 12 (1): 35–55.
Published: 01 February 1975
... either sampling or logical zeros. The TABLE A-I.-Assignment of Degrees of Freedom (df) for the Model [1, 2, 5] [2, 4, 5] [2, 3] [1, 4] for Geneva, as an Illustration of the General Procedure (d = 5, m = 4) Potential Margins Parameters Marginal Cell Zeros Margin Mi in Mi n(c i - l}j Zeros e Implied Z (Mi...
Journal Article
Demography (1975) 12 (4): 615–628.
Published: 01 November 1975
... and Patterson (1952). However, because of the large number of zero cell counts in our data table (Table 3), it was not feasible to compute from the observed counts the ratio of intent TA BL E 2. -e hi -S qu ar e V al ue s an d Si gn ifi ca nc e Le ve ls fo r Tw o- W ay Ta bl es (U pp er H al f) an d N um be ro...
Journal Article
Demography (1983) 20 (1): 1–26.
Published: 01 February 1983
... of a family's water supply can change over the course of an infant's first year of life. Models with structural zeros contain cells in which there is no exposure, i.e. some Eijk = 0, either be- cause a particular combination of levels of the variables is impossible to observe or because no people...
Journal Article
Demography (2024) 61 (2): 439–462.
Published: 01 April 2024
... to observe zero cell counts for certain age groups. For example, in many regions of Bavaria, Germany, it is typical to observe zero deaths among children aged 5 to 10 in a given year. In such cases, traditional life table approaches break down, yielding mortality rate estimates of zero and, in turn, infinite...
FIGURES
View articletitled, Bayesian Forecasting of Mortality Rates for Small Areas Using Spatiotemporal Models
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for article titled, Bayesian Forecasting of Mortality Rates for Small Areas Using Spatiotemporal Models
Includes: Supplementary data
Journal Article
Demography (1981) 18 (2): 245–250.
Published: 01 May 1981
...James M. Sakoda Abstract The index of dissimilarity can be interpreted as the ratio of the number that must be moved from cells of excess to cells of deficit to achieve even distribution. This interpretation is used to generalize the index in two directions. First, the index is made applicable...
Journal Article
Demography (1981) 18 (2): 217–230.
Published: 01 May 1981
... individual" (i.e., zero or one). If the vital event of interest is not mortality, then one could deal with larger A'S and w's greater than one (e.g., marriages). Now, because both A and ware unob- served, equation (7) cannot be employed directly in modeling mortality differen- tials across population cells...
View articletitled, Methods for the Analysis of Mortality Risks Across Heterogeneous Small Populations: Examination of Space-Time Gradients in Cancer Mortality in North Carolina Counties 1970–75
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for article titled, Methods for the Analysis of Mortality Risks Across Heterogeneous Small Populations: Examination of Space-Time Gradients in Cancer Mortality in North Carolina Counties 1970–75
Journal Article
Demography (2016) 53 (5): 1453–1476.
Published: 13 September 2016
... a total of 22,848 observations, including zero cells. We drop from our sample all the corridors exhibiting zero migration flows throughout the 1995–2012 period. 16 We use these data to construct maps of Mexico-U.S. state-to-state migrations, which provide a clear illustration of the changes...
FIGURES
View articletitled, Determinants of Mexico-U.S. Outward and Return Migration Flows: A State-Level Panel Data Analysis
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for article titled, Determinants of Mexico-U.S. Outward and Return Migration Flows: A State-Level Panel Data Analysis
Includes: Supplementary data
Journal Article
Demography (1985) 22 (1): 25–34.
Published: 01 February 1985
... the ages of 16 and 62, not currently in school, who either worked 50-52 weeks in the previ- ous year or reported the reason for work- ing fewer weeks as something other than "in school" or "retired." Those who had zero earnings, were self-employed, or had worked without pay are also excluded from our...
Journal Article
Demography (2013) 50 (6): 2255–2277.
Published: 18 October 2013
... see significant negative coefficients for each η ay that corresponds to treated cells (darkly shaded cells in Fig. 2 ). Moreover, coefficients for each η ay that corresponds to nontreated cells should not be significantly different from zero (cells with no shading in Fig. 2 ). Significant...
FIGURES
Journal Article
Demography (1996) 33 (4): 511–521.
Published: 01 November 1996
... to small cell size should produce ran- dom error in measuring percentage female; thus, because random measurement error on an independent variable gen- erally biases coefficients toward zero, the test of our thesis that percentage female has a negative effect on starting wage will be conservative. We...
Journal Article
Demography (2021) 58 (2): 527–550.
Published: 01 April 2021
.... Including them in the cross-tabulation would produce an 11 × 11 table that contains a few cells with very few or zero observations; the reweighting function ψ ˜ (see Eq. (3) ) for certain couple types would then be extremely susceptible to sampling errors and would be either very large or very...
FIGURES
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View articletitled, The Nonlinear Linkage Between Earnings Homogamy and Earnings Inequality Among Married Couples
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for article titled, The Nonlinear Linkage Between Earnings Homogamy and Earnings Inequality Among Married Couples
Includes: Supplementary data
Journal Article
Demography (2024) 61 (4): 967–971.
Published: 01 August 2024
... fertility levels. Results are very similar to those for Japan: the AP2 estimates do not have the temporal bias of the AP estimates when there are strong trends across cohorts, they are typically smaller than AP errors in absolute value, and the mean AP2 error is very close to zero (+0.2%). The top right...
FIGURES
Journal Article
Demography (2011) 48 (2): 725–747.
Published: 16 April 2011
... demographic factors that are correlated with both Medicaid expansions and the fertility patterns across demographic cells. After the cell fixed effects are added in Model 3, the coefficient estimates decline considerably in size and are no longer statistically distinguishable from zero for white and African...
FIGURES
View articletitled, Medicaid Expansions and Fertility in the United States
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for article titled, Medicaid Expansions and Fertility in the United States
Includes: Supplementary data
Journal Article
Demography (1977) 14 (2): 243–244.
Published: 01 May 1977
...- derstood, can be written as r (d)a = N / A = L NJ'i.at t=1 = "'i.djati.at. (Here the whole domain has been divided into r cells of areas at. not necessarily equal, each of which contains N, people. AIl the sums are taken over all r cells.) Now consider an alternative, the per- son-average population...
Journal Article
Demography (1964) 1 (1): 42–55.
Published: 01 March 1964
... a score of zero, because in these cells there is no error. In this table we assume that the categories A, B, C, D etc. represent some variable of ascending values, such as educational at- tainment or income. Entries which fall only one cell away from their correct position have a weight of one; those...
Journal Article
Demography (2004) 41 (1): 61–86.
Published: 01 February 2004
... . National Tax Journal , 53 , 983 – 1026 . Wemmerus N. , & Porter K. ( 1996 ). An Ethnographic Analysis of Zero-Income Households in the Survey of Income and Program Participation . Washington, DC : Mathematica Policy Research . Wooldridge J. ( 2002 ). Econometric Analysis...
Journal Article
Demography (1972) 9 (3): 455–463.
Published: 01 August 1972
... sample (Sakoda, 1964), we be needed. Interested readers are referred are again undertaking a recoding of at to the Census Users' Guide for more de- least the 1/1000 public use samples and tailed information. 455 DEMOGRAPHY, volume 9, number 3, August 1972 code, a meaningful zero should not also be used...
Journal Article
Demography (2023) 60 (5): 1493–1522.
Published: 01 October 2023
... but rather aimed at changing the amounts of household-targeted public support by reducing the assistance paid to wealthier households. The reform created a notched benefits schedule that phases out basic allowances from “full benefits” to “half benefits” and from “half benefits” to “zero benefits...
FIGURES
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View articletitled, Fertility and Labor Supply Responses to Child Allowances: The Introduction of Means-Tested Benefits in France
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for article titled, Fertility and Labor Supply Responses to Child Allowances: The Introduction of Means-Tested Benefits in France
Includes: Supplementary data
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