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To augment the amount of available information, data from different sources are increasingly being combined. These databases are often combined using record linkage methods. When there is no unique identifier, a probabilistic linkage is used. In that case, a record on a first file is associated with a probability that is linked to a record on a second file, and then a decision is taken on whether a possible link is a true link or not. This usually requires a non-negligible amount of manual resolution. It might then be legitimate to evaluate if manual resolution can be reduced or even eliminated. This issue is addressed in this paper where one tries to produce an estimate of a total (or a mean) of one population, when using a sample selected from another population linked somehow to the first population. In other words, having two populations linked through probabilistic record linkage, we try to avoid any decision concerning the validity of links and still be able to produce an unbiased estimate for a total of the one of two populations. To achieve this goal, we suggest the use of the Generalised Weight Share Method (GWSM) described by Lavallée (1995).

This paper presents weighting procedures that combine information from multiple panels of a repeated panel household survey for cross-sectional estimation. The dynamic character of a repeated panel survey is discussed in relation to estimation of population parameters at any wave of the survey. A repeated panel survey with overlapping panels is described as a special type of multiple frame survey, with the frames of the panels forming a time sequence. The paper proposes weighting strategies suitable for various multiple panel survey situations. The proposed weighting schemes involve an adjustment of weights in domains of the combined panel sample that represent identical time periods covered by the individual panels. A weight adjustment procedure that deals with changes in the panels over time is discussed. The integration of the various weight adjustments required for cross-sectional estimation in a repeated panel household survey is also discussed.

This article reviews the methods that may be used to produce direct estimates for small areas, including stratification and oversampling, and forms of dual-frame estimation.

In this paper, we discuss the application of the bootstrap with a re-imputation step to capture the imputation variance (Shao and Sitter 1996) in stratified multistage sampling. We propose a modified bootstrap that does not require rescaling so that Shao and Sitter's procedure can be applied to the case where random imputation is applied and the first-stage stratum sample sizes are very small. This provides a unified method that works irrespective of the imputation method (random or nonrandom), the stratum size (small or large), the type of estimator (smooth or nonsmooth), or the type of problem (variance estimation or sampling distribution estimation). In addition, we discuss the proper Monte Carlo approximation to the bootstrap variance, when using re-imputation together with resampling methods. In this setting, more care is needed than is typical. Similar results are obtained for the method of balanced repeated replications, which is often used in surveys and can be viewed as an analytic approximation to the bootstrap. Finally, some simulation results are presented to study finite sample properties and various variance estimators for imputed data.

Local polynomial regression methods are put forward to aid in exploratory data analysis for large-scale surveys. The proposed regression methods are put forward to aid in exploratory data analysis for large-scale surveys. The proposed method relies on binning the data on the x-variable and calculating the appropriate survey estimates for the mean of the y-values at each bin. When binning on x has been carried out to the precision of the recorded data, the method is the same as applying the survey weights to the standard criterion for obtaining local polynomial regression estimates. The alternative of using classical polynomial regression is also considered and a criterion is proposed to decide whether the nonparametric approach to modeling should be preferred over the classical approach. Illustrative examples are given from the 1990 Ontario Health Survey.

A compositional time series is defined as a multivariate time series in which each of the series has values bounded between zero and one and the sum of the series equals one at each time point. Data with such characteristics are observed in repeated surveys when a survey variable has a multinomial response but interest lies in the proportion of units classified in each of its categories. In this case, the survey estimates are proportions of a whole subject to a unity-sum constraint. In this paper we employ a state space approach for modelling compositional time series from repeated surveys taking into account the sampling errors. The additive logistic transformation is used in order to guarantee predictions and signal estimates bounded between zero and one which satisfy the unity-sum constraint. The method is applied to compositional data from the Brazilian Labour Force Survey. Estimates of the vector of proportions and the unemployment rate are obtained. In addition, the structural components of the signal vector, such as the seasonals and the trends, are produced.

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.

Using data from the Assets and Debts Survey of 1984 and the Survey of Financial Security of 1999, we document the evolution of wealth inequality in Canada between 1984 and 1999. Our main findings are as follows: 1) wealth inequality has increased between 1984 and 1999, 2) the growth in wealth inequality has been associated with substantial declines in real average and median wealth for young couples with children and recent immigrants, 3) real median wealth and real average wealth rose much more among family units whose major income recipient is a university graduate than among other family units, 4) real median and average wealth fell among family units whose major income recipient is aged 25-34 and increased among those whose major income recipient is aged 55 and over, 5) the aging of the Canadian population over the 1984-1999 period has tended to reduce wealth inequality, 6) diverging changes in permanent income do not explain a substantial portion of the growing gap between low-wealth and high-wealth family units. Factors that may have contributed to rising wealth inequality - which cannot be quantified with existing data sets - include differences in the growth of inheritances, inter vivos transfers, rates of return on savings and number of years worked full-time. In particular, rates of return on savings may have increased more for wealthy family units than for their poorer counterparts as a result of the booming stock market during the 1990s.

This, the first issue of 2002 presents an opportunity to recapitulate some of the findings that we have reported during the life of the Bulletin. In an interview, Dr. Fred Gault, Director of Statistics Canada's Science, Innovation and Electronic Information Division, discusses some of the findings on innovation, e-commerce, emerging technologies, Internet use, the telecommunications industry, R&D and commercialization.

Canadian manufacturing firms fall into two groups: The first uses patents and trademarks as a part of successful innovation strategy consisting of regular R&D financed by R&D grants and tax credits introducing world-first innovations. These are usually large firms in the technology-intensive core sector. The second group includes firms of all sizes in all sectors that rely mostly on trade secrets. They typically transfer technology from abroad by introducing Canada-first innovations and rely on government information services more than on R&D grants and tax credits.

This table is part of the 2001 Census topic "Language Composition of Canada," which shows 2001 Census data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census, Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to Catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001001.

This table is part of the 2001 Census topic "Language Composition of Canada," which shows 2001 Census data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census, Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to Catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001002.

This table is part of the 2001 Census topic "Language Composition of Canada," which shows data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census, Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to Catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001003.

This table is part of the 2001 Census topic "Language Composition of Canada," which shows data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French, and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census - Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to Catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001004.

This table is part of the topic "Language Composition of Canada," which presents 2001 Census data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census, Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to Catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001005.

This table is part of the topic "Language Composition of Canada," which presents 2001 Census data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census, Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to Catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001006.

This table is part of the topic "Language Composition of Canada," which presents 2001 Census data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census, Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to Catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001007.

This table is part of the topic "Language Composition of Canada," which presents 2001 Census data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census, Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001008.

This table is part of the topic "Language Composition of Canada," which presents 2001 Census data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

This data table can be found in the Topic Bundle: Language Composition of Canada, 2001 Census, Catalogue No. 97F0007XCB2001000

It is also possible to subscribe to all the day-of-release bundles. Refer to Catalogue No. 97F0023XCB for more information.

This table is available FREE on the Internet, Catalogue No. 97F0007XIE2001009.

This table is part of the topic "Language Composition of Canada," which presents 2001 Census data on the language composition of Canada, by mother tongue and other variables, as well as on languages spoken at home and knowledge of English, French and non-official languages. These data were collected for a sample comprising 20% of the Canadian population.

It is possible to subscribe to all the day-of-release bundles. Refer to catalogue No. 97F0023XCB for more information.

This topic provides information on families and households in Canada. The 2001 Census data show that the diversification of family and household settings continues, and that the trends have an impact on all Canadians, including children, young adults and seniors. Several indicators are used to highlight provincial and territorial differences.

This series includes a number of comprehensive articles that supplement the day-of-release information launched through The Daily. These catalogued articles provide an analytical perspective on the 2001 Census release topics. The number and length of these articles vary for each census release and are based on the 21 census release topics disseminated over 8 major release dates.

More focused articles were disseminated as major releases in The Dailyin the weeks following the official release of the data. Other more specialized articles were also announced in The Daily. The articles in the 2001 Census Analysis Series are available free of charge via the Internet.

This article examines trends in audiences, income sources, program delivery and expenses for Canada's non-profit theatre, music, dance and opera companies.

Using data from the 1976-1999 Canadian Labour Force Survey, we examine the stability of currently held jobs in a manner similar to Diebold, Neumark and Polsky (1997) and Neumark, Polsky and Hansen (1999) who analyzed data from the U.S. Current Population Survey. We find that although the current distribution of in-progress job tenures is filling up with more long jobs, and more shorter jobs - suggesting a polarization of job tenure, the stability of currently held jobs has remained quite stable over the period. A closer look reveals two phases in the Canadian data. The period 1977 to 1993 was characterized by declining job stability. Examining the data by current job tenure, we see a declining stability of short jobs - those less than one year in length were less likely to last one more year in at the end of the 1980s (and beginning of the 1990s) than in the late 1970s. At the same time jobs between one and two years long tended to become more stable - becoming more likely to last one more year by 1993. The second phase - 1993-1999 - was characterized by a reversal of these trends such that by the end of the period, jobs of all lengths were equally as stable as in the late 1970s. Declines across the 1980s in job stability were concentrated in low education, older and younger groups but job stability grew most for these same groups in the 1990s.

Following U.S. methods allows us to undertake an international comparison. We find that while job stability changes were similar in the two countries between 1987 and 1991, job stability rose relative to the United States between 1991 and 1995. We speculate that this difference is due to a relatively deeper recession in Canada in the early 1990s, and a relatively slow recovery in the mid 1990s.

This study provides a financial profile of Canadian food industry corporations that were acquired during the period 1996 to 1998.

This Juristat presents and analyzes information on young offender admissions to custody and community services, with breakdowns by custody (remand, secure, and open) and probation, and key case characteristics such as age, sex, Aboriginal/non-Aboriginal status, and most serious offence. In addition, it includes data pertaining to releases from remand, secure custody, and open custody by sex and time served. These breakdowns are presented and analyzed at the national and provincial/territorial level.

Alternative measures refer to formalized programs across Canada through which persons who would otherwise proceed to court are dealt with via non-judicial sanctions. An analysis on alternative measures includes data pertaining to the participation and agreement by the youth to enter these community-based alternatives. The key case characteristics of this survey are similar to those collected by the Youth Custody and Community Services survey.

The Youth Key Indicators describe average daily counts (caseload), which measure the volume of offenders held in custody or on probation on an average day. This information also provides an examination of youth incarceration and probation rates in Canada.

Data summarized in this Juristat are primarily drawn from three perspectives: 1) The Youth Custody and Community Services (YCCS) survey. The scope of the survey is to collect and analyze information on the application of dispositions under the Young Offenders Act from provincial and territorial agencies responsible for youth corrections and programs. 2) The Alternative Measures survey, which collects and analyzes data on the number of agreements achieved and completed. And, 3) The Youth Key Indicator Report that measures the average counts of youth in custody (remand, secure and open) and on probation.

The Population Health Model (POHEM) is a policy analysis tool that helps answer "what-if" questions about the health and economic burden of specific diseases and the cost-effectiveness of administering new diagnostic and therapeutic interventions. This simulation model is particularly pertinent in an era of fiscal restraint, when new therapies are generally expensive and difficult policy decisions are being made. More important, it provides a base for a broader framework to inform policy decisions using comprehensive disease data and risk factors. Our "base case" models comprehensively estimate the lifetime costs of treating breast, lung and colorectal cancer in Canada. Our cancer models have shown the large financial burden of diagnostic work-up and initial therapy, as well as the high costs of hospitalizing those dying of cancer. Our core cancer models (lung, breast and colorectal cancer) have been used to evaluate the impact of new practice patterns. We have used these models to evaluate new chemotherapy regimens as therapeutic options for advanced lung cancer; the health and financial impact of reducing the hospital length of stay for initial breast cancer surgery; and the potential impact of population-based screening for colorectal cancer. To date, the most interesting intervention we have studied has been the use of tamoxifen to prevent breast cancer among high risk women.

This paper focusses on recent market concentration among the various telecommunications products and markets. It also touches on issues such as price behaviour and the market structure of telecommunications services.

Rural areas have a higher incidence of part-time employment. The average annual rate of part-time job growth in rural Canada was higher between 1987 and 1997 than between 1997 and 1999. The predominantly rural provinces have the highest incidence of part-time employment in their rural areas. The majority of part-time employment growth in rural areas is occurring in mainly urban provinces.

Women who reported moderate drinking, that is, two to nine drinks in the past week, had significantly lower odds of receiving a new diagnosis of or dying from heart disease between 1994-95 and 1998-99, compared with women who reported lifetime abstinence from alcohol. No such protective association emerged for men over this period.

Hospital characteristics that may indicate restructuring, such as a recent administrative merger or a decrease in average length of stay, were not associated with 30-day re-admissions of pneumonia or acute myocardial infarction patients. Patients with two or more related hospital admissions in the previous year were at increased risk of re-admission.

The Cartographic Boundary Files Reference Guide is available for the following products:

- Provinces and Territories Cartographic Boundary File (Catalogue No. 92F0160XCE).- Census Divisions and Economic Regions Cartographic Boundary Files (Catalogue No. 92F0161XCE)- Census Subdivisions Cartographic Boundary Files (Catalogue No. 92F0162XCE)- Federal Electoral Districts (1996 Representation Order) Cartographic Boundary File (Catalogue No. 92F0163XCE)- Urban Areas Cartographic Boundary File (Catalogue No. 92F0164XCE)- Designated Places Cartographic Boundary File (Catalogue No. 92F0165XCE)- Census Metropolitan Areas and Census Agglomerations Cartographic Boundary File (Catalogue No. 92F0166XCE)- Census Consolidated Subdivisions Cartographic Boundary File (Catalogue No. 92F0167XCE)- Census Tracts Cartographic Boundary Files (Catalogue No. 92F0168XCE)- Dissemination Areas Cartographic Boundary Files (Catalogue No. 92F0169XCE)

The Reference Guide describes the content and applications of these products, as well as data quality, record layouts, and other information.

The 2001 Census defines 27 census metropolitan area (CMAs) and 19 census agglomerations (CAs) with census tracts. This working paper includes three maps for each of these CMAs and CAs. The first map shows the boundary of the CMA/CA and the boundaries of the census subdivision (CSD) components of the CMA/CA for the 1996 Census. The second map shows the transition from 1996 to 2001 (with boundary changes highlighted), and the third map shows the CMA/CA (and component CSDs) as it is defined for the 2001 Census. Accompanying tables list the component census subdivisions and the criteria which they meet to be included in the CMA or CA. The paper describes various factors that can result in changes to the boundaries of CMAs and CAs. For the 2001 Census, municipal restructuring is the factor that has had the greatest impact on the boundaries of some CMAs and CAs.The paper also briefly describes and compares the delineation criteria for metropolitan areas in the United States with those for census metropolitan areas in Canada. An indication is given of the impact on the Canadian CMA program if the American metropolitan area criteria were used.

This book introduces technical aspects of the Statistics Canada Total Work Accounts System (TWAS). The TWAS is designed to facilitate the analysis of issues that require simultaneous consideration of both paid work and unpaid productive work. Its key contribution is to allocate the deemed output of each episode of unpaid work activity to a specific beneficiary or group of beneficiaries (called "destinations"). The guide presents the criteria used to decide the allocation of each work episode to one of the destinations, as well as the pseudo code for DESTIN, the key variable of the System. This pseudo code allows programmers to quickly create the actual programming code needed to derive the DESTIN variable in their own microdata files of diary-based time-use records. The guide also discusses illustrative applications of the System, as well as its key limitations.

As of January 31, 2002 the monthly GDP by industry estimates will include Information and Communications Technologies (ICT) series. Three new aggregation series for the Information and Communications Technologies (ICT) sector and its manufacturing and services components are available back to January 1997 on CANSIM II.

This publication offers a first look at the range of products and services available from the Census of Population, and the Census of Agriculture, of 2001. This publication presents general information on the content, release dates, format, and prices for different products.

Features for the 2001 Census preview include the topics and dates for the main data releases. Reference, geography, analytical, and standard data products are described, as well as custom data services. The Census of Agriculture database serves as the source for additional products and services.

This series includes six general reference products: Preview of Products and Services, Census Dictionary, Catalogue, Standard Products Stubsets, Census Handbook and Technical Reports.

This user's guide provides a detailed description of the CD-ROM Income trends in Canada (13F0022XCB). It also provides a glossary, a description of the major concepts as well as an overview of the data source, the Survey of Labour and Income Dynamics (SLID).