Keyword search

Description:

In this paper, we study the problem of variance estimation for a ratio of two totals when marginal random hot deck imputation has been used to fill in missing data. We consider two approaches to inference. In the first approach, the validity of an imputation model is required. In the second approach, the validity of an imputation model is not required but response probabilities need to be estimated, in which case the validity of a nonresponse model is required. We derive variance estimators under two distinct frameworks: the customary two-phase framework and the reverse framework.

Description:

The Australian Bureau of Statistics has recently developed a generalized estimation system for processing its large scale annual and sub-annual business surveys. Designs for these surveys have a large number of strata, use Simple Random Sampling within Strata, have non-negligible sampling fractions, are overlapping in consecutive periods, and are subject to frame changes. A significant challenge was to choose a variance estimation method that would best meet the following requirements: valid for a wide range of estimators (e.g., ratio and generalized regression), requires limited computation time, can be easily adapted to different designs and estimators, and has good theoretical properties measured in terms of bias and variance. This paper describes the Without Replacement Scaled Bootstrap (WOSB) that was implemented at the ABS and shows that it is appreciably more efficient than the Rao and Wu (1988)'s With Replacement Scaled Bootstrap (WSB). The main advantages of the Bootstrap over alternative replicate variance estimators are its efficiency (i.e., accuracy per unit of storage space) and the relative simplicity with which it can be specified in a system. This paper describes the WOSB variance estimator for point-in-time and movement estimates that can be expressed as a function of finite population means. Simulation results obtained as part of the evaluation process show that the WOSB was more efficient than the WSB, especially when the stratum sample sizes are sometimes as small as 5.

Description:

The purpose of this work is to obtain reliable estimates in study domains when there are potentially very small sample sizes and the sampling design stratum differs from the study domain. The population sizes are unknown as well for both the study domain and the sampling design stratum. In calculating parameter estimates in the study domains, a random sample size is often necessary. We propose a new family of generalized linear mixed models with correlated random effects when there is more than one unknown parameter. The proposed model will estimate both the population size and the parameter of interest. General formulae for full conditional distributions required for Markov chain Monte Carlo (MCMC) simulations are given for this framework. Equations for Bayesian estimation and prediction at the study domains are also given. We apply the 1998 Missouri Turkey Hunting Survey, which stratified samples based on the hunter's place of residence and we require estimates at the domain level, defined as the county in which the turkey hunter actually hunted.

Description:

The European Community Household Panel (ECHP) is a panel survey covering a wide range of topics regarding economic, social and living conditions. In particular, it makes it possible to calculate disposable equivalized household income, which is a key variable in the study of economic inequity and poverty. To obtain reliable estimates of the average of this variable for regions within countries it is necessary to have recourse to small area estimation methods. In this paper, we focus on empirical best linear predictors of the average equivalized income based on "unit level models" borrowing strength across both areas and times. Using a simulation study based on ECHP data, we compare the suggested estimators with cross-sectional model-based and design-based estimators. In the case of these empirical predictors, we also compare three different MSE estimators. Results show that those estimators connected to models that take units' autocorrelation into account lead to a significant gain in efficiency, even when there are no covariates available whose population mean is known.

Description:

Coverage deficiencies are estimated and analysed for the 2000 population census in Switzerland. For the undercoverage component, the estimation is based on a sample independent of the census and a match with the census. For the overcoverage component, the estimation is based on a sample drawn from the census list and a match with the rest of the census. The over- and undercoverage components are then combined to obtain an estimate of the resulting net coverage. This estimate is based on a capture-recapture model, named the dual system, combined with a synthetic model. The estimators are calculated for the full population and different subgroups, with a variance estimated by a stratified jackknife. The coverage analyses are supplemented by a study of matches between the independent sample and the census in order to determine potential errors of measurement and location in the census data.

Description:

In this paper we describe a methodology for combining a convenience sample with a probability sample in order to produce an estimator with a smaller mean squared error (MSE) than estimators based on only the probability sample. We then explore the properties of the resulting composite estimator, a linear combination of the convenience and probability sample estimators with weights that are a function of bias. We discuss the estimator's properties in the context of web-based convenience sampling. Our analysis demonstrates that the use of a convenience sample to supplement a probability sample for improvements in the MSE of estimation may be practical only under limited circumstances. First, the remaining bias of the estimator based on the convenience sample must be quite small, equivalent to no more than 0.1 of the outcome's population standard deviation. For a dichotomous outcome, this implies a bias of no more than five percentage points at 50 percent prevalence and no more than three percentage points at 10 percent prevalence. Second, the probability sample should contain at least 1,000-10,000 observations for adequate estimation of the bias of the convenience sample estimator. Third, it must be inexpensive and feasible to collect at least thousands (and probably tens of thousands) of web-based convenience observations. The conclusions about the limited usefulness of convenience samples with estimator bias of more than 0.1 standard deviations also apply to direct use of estimators based on that sample.

Description:

In this Issue is a column where the Editor biefly presents each paper of the current issue of Survey Methodology. As well, it sometimes contain informations on structure or management changes in the journal.

Description:

This publication presents quarterly information on Canada's National Income and Expenditure Accounts (NIEA), 1947-2008. It contains data on gross domestic product (GDP) by income and by expenditure, saving and investment, borrowing and lending of each of four broad sectors of the economy: (i) persons and unincorporated businesses, (ii) corporate and government business enterprises, (iii) governments and (iv) non-residents. Information is also provided for selected subsectors. The publication begins with an analysis of the economic developments in the most recent quarter. Some issues also contain more technical articles explaining national accounts methodology or analysing a particular aspect of the economy. The publication also includes a glossary, and is no longer being released.

Description:

A series of supporting data tables accompanies the Inuit analytical article from the 2006 Aboriginal Peoples Survey (APS). These tables provide data at the national level, for each of the four Inuit regions (Nunatsiavut, Nunavik, Nunavut and the Inuvialuit region), along with data for Inuit outside these regions for major themes covered in the analytical article. Data for the Inuit identity population aged 15 and over are provided for: Participation in harvesting activities; diagnosed with arthritis/rheumatism, high blood pressure, asthma, stomach problems or intestinal ulcers, heart problems, tuberculosis and diabetes; smoking status; self-rated health status and; reasons for not completing elementary or secondary school. For Inuit children aged 6 to 14, tables include: contact with a pediatrician, general practitioner or family physician in past 12 months; contact with another medical specialist and; food insecurity.

Description:

This publication presents early estimates of mineral production by class and by province, quantities and values.

Description:

Data for Canada, provinces, territories, census divisions, census subdivisions and dissemination areas are shown in this table.

This table is part of the topic 'Labour', which presents data on the paid work of the Canadian workforce, including detailed industry and occupation data, class of worker, and work activity during the reference year. The census is the only source of data covering the entire labour market, including Indian reserves, overseas households, and all provinces and territories.

This topic also presents data on the unpaid work of the Canadian workforce, including unpaid household work, unpaid child care, and unpaid senior care. These data, together with information on paid work, provide a more complete picture of the work activities of all Canadians.

It is possible to subscribe to all the day-of-release topic bundles. Refer to Catalogue no. 97-569-XCB for more information.

Description:

Data for Canada, provinces, territories, census divisions, census subdivisions and dissemination areas are shown in this table.

This table is part of the topic 'Income and earnings,' which presents data on the income of Canadian individuals, families, and households in the year 2005, including the composition of income, and data that serve to measure low income, known as the low income cut-off (LICO). The data also include the household incomes of Canadians by family type, age, and geography, as well as the household incomes of certain population groups (e.g., immigrants).

The composition of income includes earnings, income from government sources, and investments.

It is possible to subscribe to all the day-of-release bundles. Refer to Catalogue no. 97-569-XCB for more information.

Description:

The tables in the topic 'Labour' present data on the paid work of the Canadian workforce, including detailed industry and occupation data, class of worker, and work activity during the reference year. The census is the only source of data covering the entire labour market, including Indian reserves, overseas households, and all provinces and territories.

This topic also presents data on the unpaid work of the Canadian workforce, including unpaid household work, unpaid child care, and unpaid senior care. These data, together with information on paid work, provide a more complete picture of the work activities of all Canadians.

Description:

The tables in the topic "Income and earnings" present data on the income of Canadian individuals, families, and households in the year 2005, including the composition of income, and data that serve to measure low income, known as the low income cut-off (LICO). The data also include the household incomes of Canadians by family type, age, and geography, as well as the household incomes of certain population groups (e.g., immigrants).

The composition of income includes earnings, income from government sources, and investments.

Description:

This article profiles manure production in Canada and maps manure production by sub-sub-drainage area for 2006.

Description:

Data for Canada, provinces and territories are shown in this table.

This table is part of the topic 'Income and earnings,' which presents data on the income of Canadian individuals, families, and households in the year 2005, including the composition of income, and data that serve to measure low income, known as the low income cut-off (LICO). The data also include the household incomes of Canadians by family type, age, and geography, as well as the household incomes of certain population groups (e.g., immigrants).

The composition of income includes earnings, income from government sources, and investments.

It is possible to subscribe to all the day-of-release bundles. Refer to Catalogue no. 97-569-XCB for more information.

This table is available free on the Internet, Catalogue no. 97-563-XWE2006008.

Description:

Data for Canada, provinces and territories are shown in this table.

This table is part of the topic 'Income and earnings,' which presents data on the income of Canadian individuals, families, and households in the year 2005, including the composition of income, and data that serve to measure low income, known as the low income cut-off (LICO). The data also include the household incomes of Canadians by family type, age, and geography, as well as the household incomes of certain population groups (e.g., immigrants).

The composition of income includes earnings, income from government sources, and investments.

It is possible to subscribe to all the day-of-release bundles. Refer to Catalogue no. 97-569-XCB for more information.

This table is available free on the Internet, Catalogue no. 97-563-XWE2006009.

Description:

This is the first report in the series. This report presents the first national estimates on the labour market experiences of Aboriginal people living off-reserve from the Labour Force Survey (LFS). These estimates are based on the year 2007 and cover Aboriginal people living off-reserve in the ten provinces. This report examines the labour force characteristics of the Aboriginal people, namely the employment and unemployment rates as well as wages by Aboriginal identity. The report further looks at the estimates by non-Aboriginal as well as Aboriginal, North American Indian and Métis populations. Also included is limited analysis on the Inuit population using the 2006 Census results, since the LFS sample size was too small for this group. Data are presented for the following characteristics: age, sex, educational attainment, province or region and industry. Finally, trend analysis is provided for the four western provinces over a four year period. The previously released report (Catalogue no. 71-587-X) provided analysis for the western provinces from April 2004 to March 2005.

Description:

This paper examines Ontario's and Quebec's adjustments to the resource boom. Higher commodity prices, an appreciating dollar, and increased foreign competition between 2002 and 2007 led to a restructuring of the Central Canadian economies. The restructuring manifested itself in all areas of the economy: manufacturing employment and output declined, while services and construction rose; within manufacturing there were declines across most industries in Ontario, and a shift away from consumer products towards capital products in Quebec; purchasing power increased in Ontario and Quebec as export and import prices adjusted.

Description:

This paper examines Ontario's and Quebec's adjustments to the resource boom. Higher commodity prices, an appreciating dollar, and increased foreign competition between 2002 and 2007 led to a restructuring of the Central Canadian economies. The restructuring manifested itself in all areas of the economy: manufacturing employment and output declined, while services and construction rose; within manufacturing there were declines across most industries in Ontario, and a shift away from consumer products towards capital products in Quebec; purchasing power increased in Ontario and Quebec as export and import prices adjusted.

Description:

This study investigates the dynamics of price transmission between the Canadian beef markets along the supply chain and the impact of bovine spongiform encephalopathy (BSE) on prices.

Description:

Households contribute to greenhouse gas (GHG) emissions in Canada both directly and indirectly. Direct emissions occur through the use of motor fuel and residential fuel, while indirect emissions result from the production of goods and services purchased by households. This article examines households' direct and indirect GHG emissions from 1990 to 2004.

Description: This study focuses on six environmental behaviours at the household level: use of reduced volume toilets; use of low-flow showerheads; use of compact fluorescent light bulbs (CFL); recycling; composting; and lowering temperatures. In 2006, almost half of Canadian households were very active across this range of environmental behaviours.

Description:

This article presents data on water conservation and septic system maintenance from the 2006 Households and the Environment Survey. It also compares conservation practices for households using public and private water services.

Description:

This article presents data on the use of light emitting diode (LED) holiday lighting using data from the 2007 Households and the Environment Survey.

Description:

Since only a small proportion of sexual offences are formally documented, the prevalence of sexual assault in Canada has been difficult to quantify. Using data from the 1999 and 2004 General Social Surveys (GSS) on victimization and police-reported data derived from the aggregate Uniform Crime Reporting Survey (UCR) and the incident-based Uniform Crime Reporting Survey (UCR2), the prevalence and nature of sexual assault in Canada is examined. Specifically, this report examines rates of sexual victimization; characteristics of victims and offenders; rates of police reporting; reasons for not reporting to police; the emotional effects of sexual victimization; as well as fear of crime and the use of precautionary measures by victims of sexual assault.

Description:

This paper examines firm turnover and productivity growth in the Canadian retail trade sector. Firm turnover occurs as the competitive process shifts market share from exiting firms and existing firms that contracted to entering firms and existing firms that expanded. There is considerably more firm turnover in the retail sector than in the manufacturing sector and more of it comes from entry and exit. Moreover, contrary to the manufacturing sector where only part of overall productivity growth comes from firm turnover and the re-allocation of resources from the less to the more productive, all of the aggregate productivity growth comes from this source in the retail sector. This suggests that the much-discussed Wal-Mart effect on retail sector productivity mainly comes from the Wal-Mart-created competitive pressure that shifts market share from exitors and declining incumbents to entrants and growing incumbents. Foreign-controlled firms contributed 30% of labour productivity growth and 45% of multifactor productivity growth in the retail trade sector in the period from 1984 to 1996, which are mainly due to the entry of foreign-controlled firms and expansion of more productive foreign-controlled existing firms.

Description:

This guide presents information of interest to users of data from the Survey of Household Spending, which gathers information on the spending habits, dwelling characteristics and household equipment of Canadian households. The survey covers private households in the 10 provinces. (The territories are surveyed every second year, starting in 1999.)

This guide includes definitions of survey terms and variables, as well as descriptions of survey methodology and data quality. One section describes the various statistics that can be created using expenditure data (e.g., budget share, market share, aggregates and medians)

Description:

This guide focuses on the following variables: After-tax income, Total income and its components, Income status as well as other related variables from the Income and earnings release.

Provides information that enables users to effectively use, apply and interpret data from the 2006 Census. Each guide contains definitions and explanations on census concepts, data quality and historical comparability. Additional information will be included for specific variables to help general users better understand the concepts and questions used in the census.

Description:

This guide focuses on the following variables: After-tax income, Total income and its components, Income status as well as other related variables from the Income and earnings release.

Provides information that enables users to effectively use, apply and interpret data from the 2006 Census. Each guide contains definitions and explanations on census concepts, data quality and historical comparability. Additional information will be included for specific variables to help general users better understand the concepts and questions used in the census.

Description:

This guide is intended to help data users understand the concepts and methods used in the 2006 Aboriginal Children's Survey (ACS), which was conducted from October 2006 to March 2007.

Technical details on sampling, processing and data quality are included in this guide. Further, the guide explains the relationship between the ACS and the 2006 Census and cautions users as to important differences in the data produced from these two sources. Appendix 1 contains a glossary of terms that relate to the ACS. Answers to some frequently asked questions are provided in Appendix 2. Links to the 2006 ACS questionnaires are found in Appendix 3.

Description:

This kit provides teachers with innovative classroom materials that make use of the results of the 2006 Census. Activities are available for intermediate and secondary schools, are classroom-ready, and have been classroom-tested by professional educators. Minimal preparation time is required.

Activities are grouped according to subject, using census terminology.

The 2006 Census Teacher's Kit activities are appropriate for the following subjects: English, Mathematics, Social Sciences, Geography, History, Family Studies and Informatics. Suggested grade levels are indicated on each activity and all necessary tables, charts, graphs and data are included.

Description:

With each census, Statistics Canada improves its methods of dissemination to the public by seeking ways of publishing census results in a timely and accessible manner, while maintaining high data quality standards.

This consultation guide has been developed to assist you in providing feedback on 2006 Census products and services and in contributing ideas and suggestions to the 2011 Census dissemination strategy.

Description:

Starting in 1994, the Survey of Labour and Income Dynamics (SLID) will follow individuals and families for at least six years, tracking their labour market experiences, changes in income and family circumstances. An initial proposal for the content of SLID, entitled Content of the Survey of Labour and Income Dynamics : Discussion Paper, was distributed in February 1992.

That paper served as a background document for consultation wit h interested users. The content underwent significant change during this process. Based upon the revised content, a large-scale test of SLID will be conducted in February and May 1993.

This document outlines the current demographic and labour content, leading into the test.

Description:

This free publication presents the concepts and criteria utilized to determine the entities that comprise the public sector of Canada.

The resulting statistical universe provides the framework to observe the extent of governments' involvement in the production of goods and services and the associated resource allocation process in the Canadian economy.

The concepts and criteria contained in the guide are consistent with two internationally accepted classification standards: the System of National Accounts (SNA 2008) guide; and the International Monetary Fund (IMF) Government Finance Statistics Manual 2001.

As well, the guide delineates the various public sector components that are used in compiling and aggregating public sector data. This structure also enables comparisons of Canadian government finance data with international macroeconomic statistical systems.

Description:

This special methodological paper will help readers understand and assess reports that rank the health status or health system performance of a country, province or jurisdiction. The report outlines the components and processes that underlie health rankings, explores why such rankings can be difficult to interpret and includes a plain-language checklist to use as a critical evaluative resource when reading health-ranking reports.

Description:

This book provides technical documentation of variables, methodologies and extended lists of references used in developing the research findings reported in "New Frontiers of Research on Retirement". It will be used around the world by researchers and teachers, as well as by students preparing theses related to patterns of transition to retirement. This documentation is important because a large part of book is devoted to scientific papers that are based upon Statistics Canada's data and which require substantial innovations of useful concepts and data.