The main goal of this paper is to find and apply a transparent method of measuring and analyzing convergence tendencies of one selected population to several others. It is illustrated in the case study, in which we analyze convergence tendencies of mortality of a selected country (the Czech Republic as a representative of rapidly developing post-communist countries) to other developed countries.
Data from 1991-2009 from the Human Mortality Database was used, with only ages 30 and above involved. The method of analysis is based on the expression of past trends, their extrapolation and estimation of the time theoretically needed for equalization of estimated regression functions.
In the case study, the age interval was covered by the temporary life expectancy between ages 30 and 65 and life expectancy at the age of 65. Based on the results, the "nearest demographic neighbors" for the Czech Republic are Denmark and the United States.