Security and sustainability conception analysis is being provided in the paper. The conceptions of security and sustainability have been selected due to their significance for contemporary globalized world's issues. Initially, the perceptions encompassing even ancient times are being elaborated. Onward, with an intention to get a more sophisticated view of above mentioned expressions, relevant scientific literature has been critically reviewed accentuating to the dimensions of those two phenomena. The following common dimensions could be proposed: social, economic, environmental. The implication could be stated -security conception provides not only those three dimensions some other important dimensions could be distinguished as well. One more important finding composes the perception of dimensions interactions to analyzed conceptions. Some important implications are being provided in the paper, which elevate the significance of security to sustainability for today's globalized society -security can be proposed as expression with ponderable value, while sustainability gains this power only with "sustainable development" phenomenon.

The aim of this article is to formulate hypotheses about the impact of the foreign direct investment (FDI) on sustainable development indicators of differently developed countries with reference to the relevant scientific literature. The impact of foreign direct investment on development and facets of sustainable development has been discussed in this article. After the review of the relevant scientific literature some consistent patterns have been identified, what, finally, led to the formulation of initial hypotheses. The countries were grouped according to the level of their development. A set of sustainable development indicators reflecting different facets of sustainability and sensitive to countries' development level has been distinguished. The following indicators have been considered as relevant for inclusion into the set, which would be used for estimation of FDI impact on enhancing well-being in the unevenly developed countries: GDP, exports, inflation, population, life expectancy at birth, primary school pupils, infant mortality, total health expenditure per capita, total tax rate, internet users, and residential consumption of electricity). As this article is focused for the long-term perspective of FDI impact on sustainable development, it was based on three aspects of sustainable development: economic, social and environmental. Series of hypothesis have been formulated in this paper.

The article deals with an urgent contemporary issue of sustainable development by tackling controversy and incompatibility of economic aims: to combine energy security, economic growth, steward environmental health and maintain long-term competitiveness. A discussion about perception of energy security, future trends of energy consumption, economic growth and mode of impact of energetically secure economic growth on environment and level of international competitiveness is elaborated on. The authors suggest conceptual approaches towards formulating measurable aims for sustainable and internationally competitive economic developments, which would allow us to achieve comparative compatibility of unrestricted energy availability and development of industrial constitute of countries economies, which would not lead to gradual degradation of environment and decline of international competitiveness in the long run.

Lack of sufficient attention to the role of economic sectors in terms of economic growth in Lithuania prompted very reasonable necessity to analyse foreign literature on the topic. In order to provide an in-depth coverage of possible contemporary perceptions of economic sectors and economic growth relations, many pieces of the relevant foreign scientific literature were overviewed in the context of sustainability. The following main insights were distinguished: the structure of a country's economy is the key factor that distinguishes successful countries from the unsuccessful ones and is of vital importance for economic growth; foreign scientists most commonly define the performance of economic sectors targeted at economic growth as structural changes; the performance of economic sectors targeted at a country's economic growth through the perspective of production input cannot be implied without productivity phenomenon in the context of sustainable development. JEL classification: O1.

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