Abstract
Business demography is a new developing field of research. Problems in scientific research occur due to methodological inaccuracies. Differences in defining terms and indicators, and differences and changes in business registration standards make it difficult to analyse data in time or to conduct a comparative study of various countries. Many problems still remain to be solved; however, there is a need to study the population of firms and to analyse processes occurring in these populations. This article shows the data on birth rates and death rates of European business entities registered by the Eurostat. It also presents firm set-up indicators and firm liquidation indicators in the Zachodniopomorskie voivodship as compared to the Polish market.