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- 1. Sample maintenance based on Peano keys ArchivedArticles and reports: 12-001-X199000214536Description:
We discuss frame and sample maintenance issues that arise in recurring surveys. A new system is described that meets four objectives. Through time, it maintains (1) the geographical balance of a sample; (2) the sample size; (3) the unbiased character of estimators; and (4) the lack of distortion in estimated trends. The system is based upon the Peano key, which creates a fractal, space-filling curve. An example of the new system is presented using a national survey of establishments in the United States conducted by the A.C. Nielsen Company.
Release date: 1990-12-14 - 2. The price of labour ArchivedArticles and reports: 75-001-X199000319Geography: CanadaDescription:
Have the earnings of Canadian workers been able to keep up with inflation since the 1970s? This study explains the components of labour income and analyzes the trends between 1977 and 1988.
Release date: 1990-08-24 - Articles and reports: 12-001-X199000114554Description:
The problem considered is that of estimation of the total of a finite population which is stratified at two levels: a deeper level which has low intrastratum variability but is not known until the first phase of sampling, and a known pre-stratification which is relatively effective, unit by unit, in predicting the deeper post-stratification. As an important example, the post-stratification may define two groups corresponding to responders and non-responders in the situation of two-phase sampling for non-response. The estimators of Vardeman and Meeden (1984) are employed in a variety of situations where different types of prior information are assumed. In a general case, the standard error relative to that of the usual methods is studied via simulation. In the situation where no prior information is available and where proportional sampling is employed, the estimator is unbiased and its variance is approximated. Here, the variance is always lower than that of the usual double sampling for stratification. Also, without prior information, but with non-proportional sampling, using a slight modification of the second phase sampling plan, an unbiased estimator is found along with its variance, an unbiased estimator of its variance, and an optimal allocation scheme for the two phases of sampling. Finally, applications of these methods are discussed.
Release date: 1990-06-15 - Articles and reports: 75-001-X199000214Geography: CanadaDescription:
Have recent female university graduates been able to narrow the earnings gap between themselves and their male counterparts? This study tackles the question by examining field of study, occupation and other characteristics of graduates
Release date: 1990-05-29 - 5. High technology at work ArchivedArticles and reports: 75-001-X19900012290Geography: CanadaDescription:
Many analysts see high technology industries as the way to a healthy and wealthy economy. This article reviews some of the concepts and definitions of high technology, selects one definition and examines the 1977 to 1986 employment and earnings dynamics in these industries.
Release date: 1990-01-26
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Articles and reports (5)
Articles and reports (5) ((5 results))
- 1. Sample maintenance based on Peano keys ArchivedArticles and reports: 12-001-X199000214536Description:
We discuss frame and sample maintenance issues that arise in recurring surveys. A new system is described that meets four objectives. Through time, it maintains (1) the geographical balance of a sample; (2) the sample size; (3) the unbiased character of estimators; and (4) the lack of distortion in estimated trends. The system is based upon the Peano key, which creates a fractal, space-filling curve. An example of the new system is presented using a national survey of establishments in the United States conducted by the A.C. Nielsen Company.
Release date: 1990-12-14 - 2. The price of labour ArchivedArticles and reports: 75-001-X199000319Geography: CanadaDescription:
Have the earnings of Canadian workers been able to keep up with inflation since the 1970s? This study explains the components of labour income and analyzes the trends between 1977 and 1988.
Release date: 1990-08-24 - Articles and reports: 12-001-X199000114554Description:
The problem considered is that of estimation of the total of a finite population which is stratified at two levels: a deeper level which has low intrastratum variability but is not known until the first phase of sampling, and a known pre-stratification which is relatively effective, unit by unit, in predicting the deeper post-stratification. As an important example, the post-stratification may define two groups corresponding to responders and non-responders in the situation of two-phase sampling for non-response. The estimators of Vardeman and Meeden (1984) are employed in a variety of situations where different types of prior information are assumed. In a general case, the standard error relative to that of the usual methods is studied via simulation. In the situation where no prior information is available and where proportional sampling is employed, the estimator is unbiased and its variance is approximated. Here, the variance is always lower than that of the usual double sampling for stratification. Also, without prior information, but with non-proportional sampling, using a slight modification of the second phase sampling plan, an unbiased estimator is found along with its variance, an unbiased estimator of its variance, and an optimal allocation scheme for the two phases of sampling. Finally, applications of these methods are discussed.
Release date: 1990-06-15 - Articles and reports: 75-001-X199000214Geography: CanadaDescription:
Have recent female university graduates been able to narrow the earnings gap between themselves and their male counterparts? This study tackles the question by examining field of study, occupation and other characteristics of graduates
Release date: 1990-05-29 - 5. High technology at work ArchivedArticles and reports: 75-001-X19900012290Geography: CanadaDescription:
Many analysts see high technology industries as the way to a healthy and wealthy economy. This article reviews some of the concepts and definitions of high technology, selects one definition and examines the 1977 to 1986 employment and earnings dynamics in these industries.
Release date: 1990-01-26
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