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The purpose of this report is to provide an overview of existing methods and techniques making use of personal identifiers to support record linkage. Record linkage can be loosely defined as a methodology for manipulating and / or transforming personal identifiers from individual data records from one or more operational databases and subsequently attempting to match these personal identifiers to create a composite record about an individual. Record linkage is not intended to uniquely identify individuals for operational purposes; however, it does provide probabilistic matches of varying degrees of reliability for use in statistical reporting. Techniques employed in record linkage may also be of use for investigative purposes to help narrow the field of search against existing databases when some form of personal identification information exists.

In 1999, as part of its General Social Survey program, Statistics Canada conducted a survey on victimization and public perceptions of crime and the justice system. It was the third time that the General Social Survey (GSS) had examined victimization - previous surveys were conducted in 1993 and 1988.

For the 1999 survey, interviews were conducted by telephone with approximately 26,000 people, aged 15 and older, living in the 10 provinces. Respondents were asked for their opinions concerning the level of crime in their neighbourhood, their fear of crime and their views concerning the performance of the justice system. They were also asked about their attitudes toward sentencing adult and young offenders. Respondents were randomly presented with one of four hypothetical situations for which they were asked to choose "prison" or "non-prison". Respondents who selected prison sentences were given a follow-up question that asked them whether a sentence of one year of probation and 200 hours of community work was an acceptable alternative to the prison sentence.

This Juristat examines public attitudes toward sentencing adult and young offenders. It also analyzes public attitudes toward four sectors of the justice system including, the police, the criminal courts, the prison and parole systems.

This article examines whether the education levels of graduates surpass the needs of employers, and to what extent.

This article provides an analysis of the employment and earnings patterns of recent postsecondary graduates, based on three waves of the National Graduates Surveys.

This Juristat outlines the characteristics of criminal harassment incidents as well as the characteristics of the accused and victim for 1999, and identifies trends over the past five years. (Trend data are only available for the five-year period from 1995 to 1999.) This Juristat updates a similar Juristat written in 1996 using information collected from police forces and adult criminal courts to review the charges laid and sentences imposed for cases involving criminal harassment.

There are many different types of stalkers. However, most victims of criminal harassment know their accused quite well and, in many instances, the stalker and victim were involved in a previous relationship.

Statistics Canada publishes several measures of farm income, each produced for a different purpose. This bulletin describes the concepts behind these different measures, the methods by which the measures are constructed, and the uses for which they were designed.

Canada's ports handled a record 382.0 million tonnes (Mt.) of cargo in 1999 and a record of 2.2 million TEURS (twenty-foot-equivalent units) of containers.

Third quarter 1999 operating ratios for top carriers improved by one point over the same period one year earlier to 0.93 but were unchanged in the fourth quarter (0.94). Average revenue per carrier grew by 3% in the third quarter and 4% in the fourth quarter.

This study looks at those who voluntarily work part time, as well as their reasons for doing so, their levels of work-related stress, and their job characteristics.

This Bulletin provides recent information on the performance and funding of Federal Government Expenditures on Scientific Activities, 2000-2001. The statistics presented are derived from the survey of the science and technology (S&T) activities of Federal departments and agencies. According to international convention, S&T is divided into two fields; Natural Sciences and Engineering (NSE) and Social Sciences and Humanities (SSH). These fields of science are further divided into Research and Development (R&D) and Related Scientific Activities (RSA).

With this working paper, Statistics Canada is releasing 1991 Census data tabulated by a new geographic classification called "census metropolitan area and census agglomeration influenced zones", or MIZ. This classification applies to census subdivisions (municipalities) that lie outside census metropolitan areas and census agglomerations. This part of Canada covers 96% of the country's total land mass and contains 22% of its population, yet up to now we have been limited in our means of differentiating this vast area. The MIZ classification shows the influence of census metropolitan areas (CMA) and census agglomerations (CA) on surrounding census subdivisions as measured by commuting flows based on 1991 Census place of work data. This version of the MIZ classification also incorporates a preliminary version of a north concept that flags census subdivisions according to their location in the north or south of Canada.

The series of tables presented here show detailed demographic, social and economic characteristics for Canada as a whole, for the six major regions of Canada, and for individual provinces and territories. Within each table, the data are subdivided into five categories: census metropolitan area or census agglomeration, strong MIZ, moderate MIZ, weak MIZ and no MIZ. Within each of these categories, the data are further subdivided into north and south.

Readers are invited to review and use the data tables to assess whether this combined MIZ and north/south classification of non-CMA/CA areas provides sufficient detail to support data analysis and research. The intent of this MIZ classification is to reveal previously hidden data detail and thereby help users address issues related to this vast geographic area.

This is the first of three related Geography working papers (catalogue no. 92F0138MPE). The second working paper (no. 2000-2, 92F0138MPE00002) provides background information about the methodology used to delineate the MIZ classification. The third working paper (no. 2000-3, 92F0138MPE00003) describes the methodology used to define a continuous line across Canada that separates the north from the south to further differentiate the MIZ classification.

This release provides data on the Research and development activities of the private non-profit sector. Although the contribution of this sector to the national R&D effort is small in dollar terms, its impact, particularly in the university sector, is significant.Questionnaires were mailed to 94 private non-profit organizations thought to be supporting Research and development activities. Twenty organizations reported performing Research and development.

The international Adult Literacy Survey of 1994 is an important source of information about the literacy levels of Canadians as well as the factors that can explain the disparities between certain sub-populations. The current study shows and tries to explain some of the disparities between Francophones and Anglophones in Canada.

The higher education sector is composed of "all universities, colleges of technology and other institutes of post-secondary education, whatever their source of finance or legal status. It also includes all research institutes, experimental stations and clinics operating under the direct control of, or administered by, or associated with higher education establishments."

Gross domestic expenditures on research and development (GERD) represents total R&D expenditures performed in a country's national territory during a given year. GERD includes research and development performed within a country and funded from abroad but excludes payments sent abroad for research and development performed in other countries.

This report provides an overview of residential, business and 'other' break and enter (B & E) offences in Canada, including trends at the national, provincial and metropolitan area levels, as well as characteristics of B & E incidents, accused persons and victims. In addition the offence known as "home invasion" is also discussed. Data are examined from both the Uniform Crime Reporting (UCR) survey and the General Social Survey (GSS) on victimization. Data from both youth and adult court are examined to look at the types of sentences being given to persons convicted of B & E offences.

This paper attempts to quantify the magnitude of economic disparity among Canadian provinces. It uses the average annual earning of a province as an indicator of economic well-being for that province.

In this paper, we use census tract data to analyse changes in neighbourhood income inequality and residential economic segregation in the eight largest Canadian cities during the 1980-95 period. Is the income gap between richer and poorer neighbourhoods rising? Are high and low-income families increasingly clustered in economically homogeneous neighbourhoods? The main results are an elaboration of the spatial implications of the well documented changes that have occurred in family income and earnings inequality since 1980. We find that between neighbourhood family income (post-transfer/pre-tax) inequality rose in all cities driven by a substantial rise in neighbourhood (employment) earnings inequality. Real average earnings fell, sometimes dramatically, in low-income neighbourhoods in virtually all cities while rising moderately in higher income neighbourhoods. Strikingly, social transfers, which were the main factor stabilizing national level income inequality in the face of rising earnings inequality, had only a modest impact on changes in neighbourhood inequality. Changes in the neighbourhood distribution of earnings signal significant change in the social and economic character of many neighbourhoods. Employment was increasingly concentrated in higher income communities and unemployment in lower income neighbourhoods. Finally, we ask whether neighbourhood inequality rose primarily as a result of rising family income inequality in the city as a whole or because families were increasingly sorting themselves into "like" neighbourhoods so that neighbourhoods were becoming more economically homogeneous (economic "segregation"). We find that economic spatial segregation increased in all cities and was the major factor behind rising neighbourhood inequality in four of the eight cities. A general rise in urban family income inequality was the main factor in the remaining four cities.

Historically, female employment rates in rural areas have been significantly below the rates for women in urban areas (Bollman, 1991; Fuguitt, Brown and Beale, 1989). The objective of this paper is to explore some of the factors associated with these rural-urban differences in female employment rates.

Based on 1997 results from the Traveller Accommodation Survey, it profiles Canada's hotels and motor hotels industry. Relative measures of the industry's characteristics, performance and workforce are presented with some information specific to small, medium, and large-sized establishments. The data indicate that, for a variety of reasons, large-sized hotels and motor hotels outperform other establishments in the industry.

This article looks at Canadians' incomes and expeditures in the 20th century.

Often, the same information is gathered almost simultaneously for several different surveys. In France, this practice is institutionalized for household surveys that have a common set of demographic variables, i.e., employment, residence and income. These variables are important co-factors for the variables of interest in each survey, and if used carefully, can reinforce the estimates derived from each survey. Techniques for calibrating uncertain data can apply naturally in this context. This involves finding the best unbiased estimator in common variables and calibrating each survey based on that estimator. The estimator thus obtained in each survey is always a linear estimator, the weightings of which can be easily explained and the variance can be obtained with no new problems, as can the variance estimate. To supplement the list of regression estimators, this technique can also be seen as a ridge-regression estimator, or as a Bayesian-regression estimator.

The U.S. Consumer Expenditure Survey uses two instruments, a diary and an in-person interview, to collect data on many categories of consumer expenditures. Consequently, it is important to use these data efficiently to estimate mean expenditures and related parameters. Three options are: (1) use only data from the diary source; (2) Use only data from the interview source; and (3) use generalized least squares, or related methods, to combine the diary and interview data. Historically, the U.S. Bureau of Labor Statistics has focused on options (1) and (2) for estimation at the five or six-digit Universal Classification Code level. Evaluation and possible implementation of option (3) depends on several factors, including possible measurement biases in the diary and interview data; the empirical magnitude of these biases, relative to the standard errors of customary mean estimators; and the degree of homogeneity of these biases across strata and periods. This paper reviews some issues related to options (1) through (3); describes a relatively simple generalized least squares method for implementation of option (3); and discussed the need for diagnostics to evaluate the feasibility and relative efficiency of the generalized least squares method.

The geographical and temporal relationship between outdoor air pollution and asthma was examined by linking together data from multiple sources. These included the administrative records of 59 general practices widely dispersed across England and Wales for half a million patients and all their consultations for asthma, supplemented by a socio-economic interview survey. Postcode enabled linkage with: (i) computed local road density; (ii) emission estimates of sulphur dioxide and nitrogen dioxides, (iii) measured/interpolated concentration of black smoke, sulphur dioxide, nitrogen dioxide and other pollutants at practice level. Parallel Poisson time series analysis took into account between-practice variations to examine daily correlations in practices close to air quality monitoring stations. Preliminary analyses show small and generally non-significant geographical associations between consultation rates and pollution markers. The methodological issues relevant to combining such data, and the interpretation of these results will be discussed.

The artificial sample was generated in two steps. The first step, based on a master panel, was a Multiple Correspondence Analysis (MCA) carried out on basic variables. Then, "dummy" individuals were generated randomly using the distribution of each "significant" factor in the analysis. Finally, for each individual, a value was generated for each basic variable most closely linked to one of the previous factors. This method ensured that sets of variables were drawn independently. The second step consisted in grafting some other data bases, based on certain property requirements. A variable was generated to be added on the basis of its estimated distribution, using a generalized linear model for common variables and those already added. The same procedure was then used to graft the other samples. This method was applied to the generation of an artificial sample taken from two surveys. The artificial sample that was generated was validated using sample comparison testing. The results were positive, demonstrating the feasibility of this method.

Electricity rates that vary by time-of-day have the potential to significantly increase economic efficiency in the energy market. A number of utilities have undertaken economic studies of time-of-use rates schemes for their residential customers. This paper uses meta-analysis to examine the impact of time-of-use rates on electricity demand pooling the results of thirty-eight separate programs. There are four key findings. First, very large peak to off-peak price ratios are needed to significantly affect peak demand. Second, summer peak rates are relatively effective compared to winter peak rates. Third, permanent time-or-use rates are relatively effective compared to experimental ones. Fourth, demand charges rival ordinary time-of-use rates in terms of impact.

We use data on 14 populations of coho salmon to estimate critical parameters that are vital for management of fish populations. Parameter estimates from individual data sets are inefficient and can be highly biased, and we investigate methods to overcome these problems. Combination of data sets using nonlinear mixed effects models provides more useful results, however questions of influence and robustness are raised. For comparison, robust estimates are obtained. Model-robustness is also explored using a family of alternative functional forms. Our results allow ready calculation of the limits of exploitation and may help to prevent extinction of fish stocks. Similar methods can be applied in other contexts where parameter estimation is part of a larger decision-making process.

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 Consumer Finances.

This paper outlines the process of delineating the agricultural land base (ecumene) in Canada based on data from the 1991 Census of Agriculture.

This paper reconstructs the development and evolution of the Canadian agricultural statistical system. It describes the expanding and increasingly important role of administrative data, which is integrated into survey and census information in order to complement, supplement or replace survey information or to assist with frame maintenance.

This paper describes the experiences, the issues and the expectations of the many different players involved in the implementation of document imaging for the Canadian Census of Agriculture.