Generolo Jono Žemaičio Lietuvos karo akademija

The article deals with the peculiarities of formation and enforcement of the national investment security in terms of distribution of investment flows and demand for investments. The global market for investment resources was analyzed and its impact on the investment needs and security of the individual countries was evaluated. At the methodical level, the interrelation and interdependence of components of national investment security were defined. Leading security indicators were identified and characterized taking into account investment risks factors. A Process model of the country’s investment security system was developed considering the risks and threats from the external environment and economic issues from the internal environment. The algorithm of complex assessment of the investment security of a country, based on the identification of stages and components of use of investments at the national level, was formed. A Model for evaluating the country’s individual investment security measures was developed.

The article analyses and summarizes the various author’s approach to value-added tax (hereinafter - VAT), its role in the tax system and the impact of VAT revenue on the state budget. The article considers the features of VAT, its positive and negative characteristics, discusses the aspects of implementation of tax function, and identifies the revenue collection determinants examined in literature. The impact of VAT revenues on the European Union (hereinafter - EU) Member States (hereinafter - MS) budgets, and the dynamics of the standard VAT rate and income from VAT collection efficiency is analysed. Having selected four EU Member States (Bulgaria, Italy, Ireland and Lithuania), the method of pair correlation is used to evaluate the economic and VAT describing factors affecting the revenue from VAT collection in these countries. The most correlating factors in each of the selected countries were used to create multiple regression models. After discussing the situation of VAT in the EU, the article analyses the dynamics of the revenue from VAT part in the state budget income. It examines the changes of revenue from VAT, the causes that determined a (non) enforcement of the plan of the revenue from VAT, the efficiency of the collection of revenue from VAT and its reasons analysing the case of Lithuania. In order to identify the factors that determined the revenue from the collection of VAT in Lithuania in the period 2005-2015, three multiple regression models were se up, analysed and summarized.