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R Lachapelle

Publications and source records attributed to R Lachapelle.

6 recordsLinked to original sources
PubMed1990

[The concept of open stable population: an application to the study of changes in population structure].

"The open stable population model is an extension of the stable population model. It is based upon a new immigration index. The model is used to study the impact of demographic phenomena on the population's structure by age and place of birth. For a given increase in the rate of growth, a fertility increase has more impact on the rejuvenation of the age structure than an immigration increase. With an average of 1.75 children per woman, the minimum immigration level required to avoid a decrease in population would result in a percentage of foreign-born similar to the maximum observed in any developed country...." The geographical focus is on developed countries, particularly Canada. (SUMMARY IN ENG AND SPA)

Age Distribution↗
PubMed1985

[Linguistic composition: reality and perception].

"This paper tries to show how, on the basis of quite acceptable assumptions, it is possible to estimate with existing data on language use in Canada, the perception individuals have of linguistic reality." (SUMMARY IN ENG AND SPA )

Americas↗
PubMed1984

[Analysis of language mobility: indexes, observations, and models].

"Two methods of analysing language mobility are presented. The first is based on the distinction between structural mobility, which produces a change in the final (or home-language) composition relative to the initial (or mother-tongue) composition, and exchange mobility, which measures the frequency of balanced transfers between each pair of languages....The second method is more conventional in that it relies on the theory of stationary Markov chains. It entails the transformation of language mobility rates into an equilibrium composition. The latter is then compared with the observed compositions. Except in very special cases, this method yields less useful results than the first one, which is better suited to the concerns underlying language mobility research." The geographic focus is on Quebec and Canada. (summary in ENG, SPA)

Americas↗