‘Statistics’ Magazine, issue 3/2017
... ambiguous (only true and accurate) solutions are being found in comparison to the conditional and inaccurate solutions with the multiple factor indices of the prices with constant composition of Laspeyres and Paashe. The section Theory and Methodology of statistical studies incudes the articles: • Some structural changes in the natal (fertile) contingent in Bulgaria and their impact on birth rate - author Prof. Dr. Dimitar Arkadiev The article discusses the decrease in the number of live births in Bulgaria during the last 15-20 years. This reflects directly on the total number of the population in the country. The trends in the change in the number of live births and women from the maternity contingent are studied. The model of spline-functions (live births) and second order parables (women) are used to describe the lasting trend. It characterizes the structure and structural changes in the age distribution of women from the birth contingent and the born from them children. The dimensions ...


