Results
All (31)
All (31) (0 to 10 of 31 results)
- Articles and reports: 75F0002M1996007Description:
This study identifies differences between various aggregate, average and other income estimates produced by the 1993 income data from the Survey of Labour and Income Dynamics and the Survey of Consumer Finances. It also quantifies these differences where possible.
Release date: 1997-12-31 - Articles and reports: 75F0002M1996011Description:
This paper looks at the family data from the Survey of Labour and Income Dynamics (SLID). It also provides an explanation of the approach used in the SLID to convey changes in the family as well as examples to indicate how family data can be analysed longitudinally.
Release date: 1997-12-31 - Articles and reports: 75F0002M1996012Description:
This paper gives an overview of the different sources of errors that occur with this methodology and presents some results on the impact of this mixed approach. The research has focused on micro-comparisons and has attempted to quantify the impact on measures of change.
Release date: 1997-12-31 - Articles and reports: 75F0002M1997004Description:
This paper sets out a number of summary analyses that support the recommendation to draw a top up sample in the integration of Survey of Labour and Income Dynamics (SLID) and Survey of Consumer Finances (SCF) data.
Release date: 1997-12-31 - Articles and reports: 91F0015M1997004Geography: CanadaDescription:
The estimation of the population by age, sex and marital status for each province is a difficult task, principally because of migration. The characteristics of migrants are available only from responses to the census. Until 1991, the census included only the question on place of residence five years ago. Thus, a person who had a different residence five years earlier was considered as a migrant and was attributed the characteristics reported for him/her at the time of the census. However, the respondent had up to five years to change characteristics, particularly those relating to marital status.
Since 1991, the census has asked a question on the place of residence one year ago. The same procedure attributes to the migrant the characteristics reported one year earlier, but this time there is only one year to change them.The article describes, in some detail, the methods now used by Statistics Canada to estimate the characteristics of migrants and evaluates the advantages of using the data on place of residence one year ago.
Release date: 1997-12-23 - Articles and reports: 62F0014M19970103362Geography: CanadaDescription:
The debate on the measurement of bias in the CPI has been around for decades. However, given the size of government budgetary deficits, the issue of overestimating inflation and therefore payments in social benefits has triggered the interest in the measurement of the CPI bias. The final report of the U.S. Advisory Commission to Study the Consumer Price Index, chaired by Michael Boskin, states that the U.S. CPI has been overestimated by 1.1% per year since 1996. Following the release of the report, many interested groups have asked the question as to the magnitude of the bias for Canada's CPI. This result raised the question whether the bias in the Canadian CPI was of the same magnitude. This paper begins by presenting the bias issue in the context of the Canadian CPI and then outlines some of the plans Statistics Canada intends to undertake in the near future to improve the measurement of the CPI. The paper concludes that, although the Canadian CPI may suffer from the same potential problems as the U.S. CPI, the overall effect of these biases is less notable because Statistics Canada started to apply an appropriate methodology earlier. In fact, in recent studies Crawford (1993 and 1997) tried to estimate an overall bias and concluded that given the generous judgement incorporated in the estimate, it is likely that the bias is, on average smaller than 0.5%.
Release date: 1997-10-02 - Articles and reports: 62F0014M19970103363Geography: CanadaDescription:
The debate over problems in measuring inflation is not new. It has recently been revived by the publication of a report by an Advisory Commission to the U.S. Senate. The Commission, chaired by Michael J. Boskin, found that the U.S. Consumer Price Index (CPI) overestimates inflation by 1.1 percentage points a year. This article shows that the potential bias in the French CPI is on a far lower order of magnitude. It is hard to summarize the changes in a multitude of prices with a single figure. Even in the best-case theoretical scenario - a single consumer faced with a spending decision - the treatment of substitutions between existing products raises important problems. Nevertheless, it is possible to provide a fairly accurate description of the various possible alternatives and the statistical procedures used in France largely shield the country's index from criticism on this point. The introduction of new products creates serious difficulties that have not been entirely resolved in the United States, in France, or elsewhere: "new products" is used here in the broad sense to denote (1) genuinely new products on the market and (2) products already sold elsewhere but introduced in a new sales outlet, replacing existing products or not. The Boskin Commission estimates the upward bias in the U.S. CPI due to new products at 0.6 percentage points per year. The Commission's claim rest on fragile and probably exaggerated estimates. Our conclusion converges with the opinion of several U.S. statisticians.
Release date: 1997-10-02 - Articles and reports: 62F0014M1997010Geography: CanadaDescription:
The debate on the measurement bias in the Consumer Price Index (CPI) arising from the U.S. "Advisory Commission to Study the Consumer Price Index", better known as the Boskin report, is not new and has been around for a number of decades. However, several circumstances made the current debate special.
This publication, Bias in the CPI: experiences from five OECD countries, presents the experience and point of view of five different countries relative to the measurement bias in the CPI. While most statistical agencies recognise that their CPIs are not perfect measures of inflation, some agencies of the Organisation for Economic Co-operation and Development (OECD) countries have consistently developed research agendas designed to improve its measurement.
Release date: 1997-10-02 - 9. A computer algebra for sample survey theory ArchivedArticles and reports: 12-001-X19970013100Description:
A system of procedures that can be used to automate complicated algebraic calculations frequently encountered in sample survey theory is introduced. It is shown that three basic techniques in sampling theory depend on the repeated application of rules that give rise to partitions: the computation of expected values under any unistage sampling design, the determination of unbiased or consistent estimators under these designs and the calculation of Taylor series expansions. The methodology is illustrated here through applications to moment calculations of the sample mean, the ratio estimator and the regression estimator under the special case of simply random sampling without replacement. The innovation presented here is that calculations can now be performed instantaneously on a computer without error and without reliance on existing formulae which may be long and involved. One other immediate benefit of this is that calculations can be performed where no formulae which may be long and involved. One other immediate benefit of this is that calculations can be performed where no formulae presently exist. The computer code developed to implement this methodology is available via anonymous ftp at fisher.stats.uwo.ca.
Release date: 1997-08-18 - 10. Inverse sampling design algorithms ArchivedArticles and reports: 12-001-X19970013101Description:
In the main body of statistics, sampling is often disposed of by assuming a sampling process that selects random variables such that they are independent and identically distributed (IID). Important techniques, like regression and contingency table analysis, were developed largely in the IID world; hence, adjustments are needed to use them in complex survey settings. Rather than adjust the analysis, however, what is new in the present formulation is to draw a second sample from the original sample. In this second sample, the first set of selections are inverted, so as to yield at the end a simple random sample. Of course, to employ this two-step process to draw a single simple random sample from the usually much larger complex survey would be inefficient, so multiple simple random samples are drawn and a way to base inferences on them developed. Not all original samples can be inverted; but many practical special cases are discussed which cover a wide range of practices.
Release date: 1997-08-18
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Articles and reports (31)
Articles and reports (31) (0 to 10 of 31 results)
- Articles and reports: 75F0002M1996007Description:
This study identifies differences between various aggregate, average and other income estimates produced by the 1993 income data from the Survey of Labour and Income Dynamics and the Survey of Consumer Finances. It also quantifies these differences where possible.
Release date: 1997-12-31 - Articles and reports: 75F0002M1996011Description:
This paper looks at the family data from the Survey of Labour and Income Dynamics (SLID). It also provides an explanation of the approach used in the SLID to convey changes in the family as well as examples to indicate how family data can be analysed longitudinally.
Release date: 1997-12-31 - Articles and reports: 75F0002M1996012Description:
This paper gives an overview of the different sources of errors that occur with this methodology and presents some results on the impact of this mixed approach. The research has focused on micro-comparisons and has attempted to quantify the impact on measures of change.
Release date: 1997-12-31 - Articles and reports: 75F0002M1997004Description:
This paper sets out a number of summary analyses that support the recommendation to draw a top up sample in the integration of Survey of Labour and Income Dynamics (SLID) and Survey of Consumer Finances (SCF) data.
Release date: 1997-12-31 - Articles and reports: 91F0015M1997004Geography: CanadaDescription:
The estimation of the population by age, sex and marital status for each province is a difficult task, principally because of migration. The characteristics of migrants are available only from responses to the census. Until 1991, the census included only the question on place of residence five years ago. Thus, a person who had a different residence five years earlier was considered as a migrant and was attributed the characteristics reported for him/her at the time of the census. However, the respondent had up to five years to change characteristics, particularly those relating to marital status.
Since 1991, the census has asked a question on the place of residence one year ago. The same procedure attributes to the migrant the characteristics reported one year earlier, but this time there is only one year to change them.The article describes, in some detail, the methods now used by Statistics Canada to estimate the characteristics of migrants and evaluates the advantages of using the data on place of residence one year ago.
Release date: 1997-12-23 - Articles and reports: 62F0014M19970103362Geography: CanadaDescription:
The debate on the measurement of bias in the CPI has been around for decades. However, given the size of government budgetary deficits, the issue of overestimating inflation and therefore payments in social benefits has triggered the interest in the measurement of the CPI bias. The final report of the U.S. Advisory Commission to Study the Consumer Price Index, chaired by Michael Boskin, states that the U.S. CPI has been overestimated by 1.1% per year since 1996. Following the release of the report, many interested groups have asked the question as to the magnitude of the bias for Canada's CPI. This result raised the question whether the bias in the Canadian CPI was of the same magnitude. This paper begins by presenting the bias issue in the context of the Canadian CPI and then outlines some of the plans Statistics Canada intends to undertake in the near future to improve the measurement of the CPI. The paper concludes that, although the Canadian CPI may suffer from the same potential problems as the U.S. CPI, the overall effect of these biases is less notable because Statistics Canada started to apply an appropriate methodology earlier. In fact, in recent studies Crawford (1993 and 1997) tried to estimate an overall bias and concluded that given the generous judgement incorporated in the estimate, it is likely that the bias is, on average smaller than 0.5%.
Release date: 1997-10-02 - Articles and reports: 62F0014M19970103363Geography: CanadaDescription:
The debate over problems in measuring inflation is not new. It has recently been revived by the publication of a report by an Advisory Commission to the U.S. Senate. The Commission, chaired by Michael J. Boskin, found that the U.S. Consumer Price Index (CPI) overestimates inflation by 1.1 percentage points a year. This article shows that the potential bias in the French CPI is on a far lower order of magnitude. It is hard to summarize the changes in a multitude of prices with a single figure. Even in the best-case theoretical scenario - a single consumer faced with a spending decision - the treatment of substitutions between existing products raises important problems. Nevertheless, it is possible to provide a fairly accurate description of the various possible alternatives and the statistical procedures used in France largely shield the country's index from criticism on this point. The introduction of new products creates serious difficulties that have not been entirely resolved in the United States, in France, or elsewhere: "new products" is used here in the broad sense to denote (1) genuinely new products on the market and (2) products already sold elsewhere but introduced in a new sales outlet, replacing existing products or not. The Boskin Commission estimates the upward bias in the U.S. CPI due to new products at 0.6 percentage points per year. The Commission's claim rest on fragile and probably exaggerated estimates. Our conclusion converges with the opinion of several U.S. statisticians.
Release date: 1997-10-02 - Articles and reports: 62F0014M1997010Geography: CanadaDescription:
The debate on the measurement bias in the Consumer Price Index (CPI) arising from the U.S. "Advisory Commission to Study the Consumer Price Index", better known as the Boskin report, is not new and has been around for a number of decades. However, several circumstances made the current debate special.
This publication, Bias in the CPI: experiences from five OECD countries, presents the experience and point of view of five different countries relative to the measurement bias in the CPI. While most statistical agencies recognise that their CPIs are not perfect measures of inflation, some agencies of the Organisation for Economic Co-operation and Development (OECD) countries have consistently developed research agendas designed to improve its measurement.
Release date: 1997-10-02 - 9. A computer algebra for sample survey theory ArchivedArticles and reports: 12-001-X19970013100Description:
A system of procedures that can be used to automate complicated algebraic calculations frequently encountered in sample survey theory is introduced. It is shown that three basic techniques in sampling theory depend on the repeated application of rules that give rise to partitions: the computation of expected values under any unistage sampling design, the determination of unbiased or consistent estimators under these designs and the calculation of Taylor series expansions. The methodology is illustrated here through applications to moment calculations of the sample mean, the ratio estimator and the regression estimator under the special case of simply random sampling without replacement. The innovation presented here is that calculations can now be performed instantaneously on a computer without error and without reliance on existing formulae which may be long and involved. One other immediate benefit of this is that calculations can be performed where no formulae which may be long and involved. One other immediate benefit of this is that calculations can be performed where no formulae presently exist. The computer code developed to implement this methodology is available via anonymous ftp at fisher.stats.uwo.ca.
Release date: 1997-08-18 - 10. Inverse sampling design algorithms ArchivedArticles and reports: 12-001-X19970013101Description:
In the main body of statistics, sampling is often disposed of by assuming a sampling process that selects random variables such that they are independent and identically distributed (IID). Important techniques, like regression and contingency table analysis, were developed largely in the IID world; hence, adjustments are needed to use them in complex survey settings. Rather than adjust the analysis, however, what is new in the present formulation is to draw a second sample from the original sample. In this second sample, the first set of selections are inverted, so as to yield at the end a simple random sample. Of course, to employ this two-step process to draw a single simple random sample from the usually much larger complex survey would be inefficient, so multiple simple random samples are drawn and a way to base inferences on them developed. Not all original samples can be inverted; but many practical special cases are discussed which cover a wide range of practices.
Release date: 1997-08-18
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