The result of cooperative research between Statistics Canada and the United States Bureau of the Census, this report presents tabulations of the demographic, economic, and social characteristics of persons born in Canada and counted in the U. S. Census of 1980 along with persons born in the United States and counted in the Canadian census of 1981. The researchers analyzed the cumulative effects of migration between Canada and the United States on the migrant stock of the two countries. The study provides a model for efforts to obtain emigration data for nations lacking comprehensive registration systems. Forty-three tables and 27 charts and graphs are included. A copy of the Census long form questionnaires for both countries, immigration laws, and a five-page bibliography also are provided. Data on educational level from the censuses of the two countries are contained in tables A-10 and A-11 and are discussed on pages 33-34. (NL)