New Challenges in Accounting and Finance

The financial balance of each country's social security system is a concern for countries, professional groups, and individuals. If the first social security systems were based on the principle of social solidarity and objectively the financial resources collected from the active generations were sufficient to cover the risks of the social security branches, nowadays the supporters of this principle are fewer. An objective problem is also the achievement of the system maturity state that occurs after 60-70 years after the scheme’s development that is almost after a period equal to a generation’s age. For the projection of social security models, demographic, economic, fiscal and legislative variables are typically used. In this article, the researcher approached the social security models. Since between social security and demography there is a biunique relationship, the researcher presented econometric and OLG models