The article discusses the assessment of sustainable development. According to the collected theoretical and practical material, the possibilities of assessment of sustainable development are reviewed from the viewpoint of principles of environmental economics and sustainable development.

The article evaluates the process of Lithuanian economic development by sustainability aspect. According to the collected theoretical and practical material, the assessment of Lithuanian economy sustainablity from the viewpoint of principles and systems of environmental economics, strategical management and sustainable development are reviewed.

The article evaluates the process of economic development by sustainability aspect. According to the collected theoretical and practical material, the assessment of economy sustainablity from the viewpoint of principles and systems of environmental economics, strategical management and sustainable development is reviewed.

High activity levels of M&A market indicate redeeming confidence level in the economy. However, there is a puzzle of macroeconomic, microeconomic, geopolitical, and institutional factors that question sustainability of this growth. The study interlinks actual M&A occurrences with economic cycle from theoretical perspective and supports that mergers and acquisitions are always a decision for each individual company and a successful M&A does not just depend on the optimal timing of a transaction, but on a multitude of factors.