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This article examines the extent of proxy reporting in the Natiional Population Health (NPHS). It also explores associations between proxy reporting status and the prevalence of selected health problems, and investigates the relationship between changes in proxy reporting status and two-year incidence of health problems.

This article examines associations between selected work- and non-work-related factors and the incidence of chronic back problems over the next two years.

This article examines changes in household spending on health care between 1978 and 1998. It also provides a detailed look at household spending on health care in 1998.

This study aims to help tourism destinations planners understand the characteristics of domestic bird and wildlife viewing markets so that they may be better prepared to meet the demands of these groups of travellers.

The Vancouver-San Francisco market experienced the largest year-over-year increase in passengers of all the major markets between 1997 and 1998. Toronto-Milwaukee was the mid-sized market which experienced the largest year-over-year increase, with 25,520 more passengers in 1998 than 1997.

The volume of air travel between the Canadian cities and American states presented in Text Table 2.1 generally reflects the underlying large inter-city markets.

The Canada-United States Open Skies Agreement, which was signed on February 24 1995, transformed the regulatory environment for air services between two countries. Text Table 3.1 shows the changes in the level of travel between the U.S. and the eight most-frequented Canadian cities since 1995.

Scheduled air trips to or from Ontario, British Columbia and Alberta represented a greater proportion of total Canada-United States air travel than residents of these provinces represented of the total Canadian population. Alberta residents represented 9.6% of Canada's total population in 1998, while Alberta represented 11.8% of the total number of Canada-U.S. air travellers. Even more markedly, the populations of Ontario and British Columbia represented 37.7% and 13.2% respectively of the total Canadian population, while Ontario represented 44.4% of total Canada-U.S. travelers and British Columbia represented 20.8%.

In this paper, we will estimate the number of Canadian passengers that are going to "business" and "leisure" markets and whether these passengers have seen an improvement in service since the signing of the Open Skies Agreement.

The most recent police-reported statistics indicate that the crime rate in Canada has decreased for the eighth consecutive year and is at its lowest point since 1979. Statistics from the United States and from many other countries show similar trends. However, data from studies such as the 1993 General Social Survey (GSS), the 1996 International Criminal Victimization Survey (ICVS), and national polls suggest that many Canadians perceive crime as increasing and fear being a victim of crime in their neighbourhoods. The most feared crimes are those of a violent nature, especially homicide – the killing of one human being by another – which tends to receive more media attention than any other criminal act. Despite this concern among Canadians about violence, the homicide rate has been declining since the mid-1970s.

This publication presents information on the income, expenditure and assets of all trusteed pension funds in Canada in both the public and private sectors. Data are presented at the Canada level. The publication contains an analysis of the funds based on the size of the fund, the number of members and the type of benefit. It is a continuation of a series of reports produced since 1957. As a single pool of investment capital in Canada, these funds are surpassed in size only by the aggregate reserves held by the chartered banks.

Often identified as an emerging sector, the environment industry continues to evolve into a complex industry that offers a wide range of technologies and services aimed at protecting the environment and improving environmental quality. This paper analyses Canada's trade in environmental goods and services and compares it with the trade profile of the world's largest environmental market, the United States. What is Canada's trade balance among the different segments of the environment industry? What are the market drivers for environmental goods and services? The relevance of this research is magnified by the current focus on environmental technologies and their key sub-sectors such as climate change technologies, water and wastewater systems and hazardous waste management. The government recently identified these sectors as targeted growth areas for Canada.

The ports handled a total of 274.3 million tonnes (Mt.) of cargo. Strong increases in domestic shipments, particularly in the forest sector were sufficient to offset a decline in international shipments, which were strongly affected by a decrease in iron ore shipments to US ports.

For the Canadian bus industry as a whole, the first six months of 1999 produced marginal financial improvements over the same months of the previous year. Gross revenues excluding subsidies grew by just over one half of one percent, rising from $1.58 billion in 1998 to $1.59 billion in 1999. Expenditures decreased slightly from $2.38 billion for the first two quarters of 1998 to $2.37 billion in 1999.

This online publication presents detailed annual financial and operating statistics on the Canadian cable television industry. Operational data are published on subscribers, households passed by cable, kilometres of cable, channel capacity and program hours. Financial statistics include detailed revenue and expense accounts, balance sheet and statement of retained earnings. The preamble to the publication consists of statistical highlights, a written analysis and text tables which display a financial and operating summary of the cable television industry. Also included is a glossary of terms for the industry.

This publication analyses interprovincial and international trade flows with provincial highlights enhanced by charts, contains tables that illustrate: how trade has evolved annually from 1992 to 1998; the types of goods and services traded; and, developments of economic linkages among the provinces.

Nearly 50,000 or one in five (22%) Canadian truck drivers on the road in 1998 were independent truckers or "owner-operators". However, similar to other forms of self-employment, the net-earnings and socio-economic characteristics of owner-operators have often been ignored by researchers for reasons of analytical convenience or data limitations. New data products recently released by Statistics Canada such as the Survey of Labour and Income Dynamics (SLID) have the potential to fill much of this gap. The 1997 SLID cross-sectional micro-data files offer a limited but meaningful insight into the work patterns of the owner-operator population, complementing and validating well-established business surveys such as the annual Small for-hire carrier and Owner-operator Survey (SFO). The purpose of this study, through a multivariate analysis of the 1997 SLID and the 1997 SFO survey, was to compare the work patterns and backgrounds of owner-operators to company drivers (paid truck drivers employed by carriers). The study found that while drivers may choose to be self-employed to gain independence, owner-operators tend to work longer hours to meet fixed and variable costs, in return for lower after-tax earnings and a greater likelihood of high work-life stress. The analysis also found that the odds of self-employment among truckers were highest among drivers over 40 years of age with no post-secondary training.

Statistics on hotels, motels, tourist camping grounds and other types of traveller accommodation (e.g., receipts, employment, expenses, occupancy) are provided in this publication. Also included are definitions, methodology, and notes on data quality.

Sub-provincial employment dynamics uses longitudinal data to produce year-to-year changes in the number of employer businesses, employment and payrolls in Canada. Changes are shown by size of business and by business life status, which includes entry, exit, growth and decline.

Censuses of Canada, 1665 to 1871, Statistics of Canada, Volume IV was printed in Ottawa, in 1876, from the Censuses of Canada, 1870-71. This volume contains about 343 statistical tables on the social and economic conditions in Canada from the earliest settlements to Confederation and onto 1871. The results from 98 censuses are arranged in chronological order, with some explanatory notes. In most cases, there are sufficient descriptions of the individual series to enable the reader to use them without consulting the numerous basic sources referenced in the publication.

An electronic version of this historical publication is accessible on the Internet site of Statistics Canada. The Introduction is a free downloadable document in text as HTML pages for on-line viewing and Adobe Acrobat (PDF) files for printing. The statistical tables are available through E-STAT* (which allows both on-line viewing and downloading).

Richard Platek, the founding Chairman, who remained at the helm of the Journal until 1987, has provided an excellent overview of the gradual evolution of the Journal from a modest divisional to a respected departmental publication and then to an international publication of repute.

Dr. Fellegi considers the challenges facing government statistical agencies and strategies to prepare for these challenges. He first describes the environment of changing information needs and the social, economic and technological developments driving this change. He goes on to describe both internal and external elements of a strategy to meet these evolving needs. Internally, a flexible capacity for survey taking and information gathering must be developed. Externally, contacts must be developed to ensure continuing relevance of statistical programs while maintaining non-political objectivity.

Leslie Kish describes the challenges and opportunities of combining data from surveys of different populations. Examples include multinational surveys where the data from surveys of several countries are combined for comparison and analysis, as well as cumulated periodic surveys of the "same" population. He also compares and contrasts the combining of surveys with the combining of experiments.

In 1999 Statistics Sweden outlined a proposal for improved quality within the European Statistical System (ESS). The ESS comprises Eurostat and National Statistical Institutes (NSIs) associated with Eurostat. ... Basically Statistics Sweden proposed the creation of a LEG [Leadership Expert Group] on Quality].

In his paper Fritz Scheuren considers the possible uses of administrative records to enhance and improve population censuses. After reviewing previous uses of administrative records in an international context, he puts forward several proposals for research and development towards increased use of administrative records in the American statistical system.

Godambe and Thompson consider the problem of confidence intervals in survey sampling. They first review the use of estimating functions to obtain model robust pivotal quantities and associated confidence intervals, and then discuss the adaptation of this approach to the survey sampling context. Details are worked out for some more specific types of models, and an empirical comparison of this approach with more conventional methods is presented.

J.N.K. Rao gives an overview of the methods and models used for small area estimation. This is an update of his previous overview (Ghosh and Rao, 1994, Statistical Science). He first presents a general discussion of small area models, making a distinction between area level models and unit level models. He then describes the development in three main approaches for inference based on these models: EBLUP, EB and HB, gives several examples of recent applications. Finally, he presents an interesting discussion identifying the gaps and areas that require further research.

Sirken and Shimizu derive a Horvitz-Thompson estimator for population based establishment sample surveys (PBESs). A PBES is a survey of establishments where the sampling frame consists of establishments with which a preliminary sample of households or individuals has had some contact.

Jean-Claude Deville shows how to use simple tools to calculate the variance of a complex estimator using a linearization technique. The process is that of a software used at INSEE for estimation of the variance of a complex estimator. It gives a way of computing the variance of a total estimated by the simple expansion estimator. In the case of a complex statistic, the process uses a derived variable that reduces the computations to those of the simple expansion estimator. Multiple examples are given to illustrate the process.

Brewer proposes a method of weight calibration in survey sampling, called cosmetic calibration, which yields cosmetic estimators of totals, i.e. estimators that can be interpreted as both design-based and prediction based. He also discusses variance estimation and shows how the problem of negative weights can be easily and naturally handled using cosmetic calibration. Finally he compares the properties of the weights and the resulting estimators to some alternative approaches using some Australian far data.

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.