Innovations in enterprises and their evaluation are a real and significant problem regarding the transition to a new stage of economic development, as well as the related reformulation of enterprise development strategies and corresponding governmental policy. In this regard, the article aims to systematize the different positions on this problem. The positions of representatives from schools of economic thought at Brandeis, Harvard, Oxford and the University of Chicago and followers of Schumpeter, Porter, ordoliberals, etc. are distinguished. Different objectives of the renewal process are also established, respectively, in different evaluative contexts related to competition, enterprise size, welfare, general interest, new technological paradigms, etc., on the one hand, and various causes and consequences, on the other. The positions in the Bulgarian literature are grouped as those that reject the need for a change in the goal or those that define it as necessary and according to the goal’s content.

In conclusion, it is summarized that modern discussions about innovations in enterprises and their evaluation are increasingly connected with current practical needs – the initiation of competition laws, solving contemporary challenges, the result of accelerating changes in the technologies used, etc. A recommendation is made to overcome the descriptive approach to problems of modernity in the Bulgarian economic literature and move to a problem-oriented one which aims at solving the current and emerging problems.

The purpose of the study is to assess the dynamics of the debt burden of non-financial enterprises in Bulgaria, emphasizing the impact of the coronavirus pandemic on companies from different sectors. The analysis in the article is based on data for the period 2016-2020, which were provided by National statistical institute. Both with the help of the coefficients based on information from the income statement and the balance sheet, as well as on the basis of the coefficients with the participation of the cash flow from operations, a high volatility of the capacity to bear debt is found. This indicates a high risk and a strong dependence on attracted financing for the refinancing of maturing liabilities. The study showed heterogeneous dynamics of indebtedness and the burden of debt in different sectors during the first year of the pandemic, which can be largely explained by the divergent impact of measures to limit the spread of the infection on the level of economic activity in individual sectors. In the majority of the studied sectors, a decrease in the capacity to bear debt is found in the first year of the pandemic. A negative indicator of the capacity of companies to bear the burden of debt is also the low profitability of the use of assets during the studied period. In most sectors, an increase in the traditional liquidity ratios was found, but a significant deterioration of the indicator Cash flow from operations/Current liabilities in the first year of the pandemic. The pandemic has exacerbated the shortcomings of traditional liquidity ratios by increasing uncertainty about how salable inventories are and how collectable receivables of the companies are.

In 2015 Bulgaria expressed its support for adoption of the 2030 Agenda for Sustainable Development. As the deadline for its implementation approaches, considering the highest order of the objective of achieving sustainable development, the question of what is the current level of sustainable development of our country in absolute and relative terms – compared to other EU member states, what are the trends and prospects for the implementation of the Sustainable Development Goals by 2030 is becoming more relevant. The answer to this question is provided by the present study, which presents the most frequently used complex indicators for determining the level of sustainable development, as well as the position, value and change in indicators for the level of sustainable development of Bulgaria according to the seventeen Global Goals adopted by the UN. Among the main results of the publication, it stands out that for all three general indicators for sustainable development – the Human Development Index, the Social Progress Index and the Sustainable Development Goals Index, as well as regarding the status and changes for Bulgaria in terms of the realization of the individual Sustainable Development Goals (according to three different methodologies, within three different reports) Bulgaria is far from the average European level and in the last position among the EU member states. Our country is still far from fulfilling the Global Goals, the direction of change for most goals is positive, although not at a sufficiently good pace to reach them in 2030.

The author focuses on the new phenomenon of copytrading, starting from a thorough knowledge of online financial trading tools. As more and more individuals have ventured into the online trade of financial instruments through new technologies and the Internet, trading has become accessible to anyone. It will be shown that operating within financial markets is not easy in the light of a series of economic techniques developed by experts in the field. This paper aims to provide an overview of the evolution of markets and therefore how the advent of the Internet and the creation of an extremely connected society is influencing the world of the stock exchange, changing actors and methods. It will especially explore the role and weight of today’s social networks in the financial markets and how, through their integration in stock exchange environments, a new trading system has developed that is increasingly open to all kinds of "investors" – recalling, for example, some start-ups engaged in a real process of "democratizing finance", thanks to their low costs and easy accessibility, like eToro. On one hand, the paper’s objective is the interdisciplinary nature of this phenomenon: economic profiles which explain its functioning and the legal consequences it generates, imposing organic regulation. The other objective relates to inexperienced traders being able to make investment choices with diligence and conscience; the paper will outline some traits of the regulatory regulation of online trading with a view to a comparison between the Italian and Bulgarian systems.

"The advocate of a system is apt to be very wise in his presumption, and is often so enamoured of the supposed beauty of his plan of government that he would not suffer the slightest deviation from it. ... He seems to imagine that he can arrange the various members of a great society with the same ease with which his hand arranges the pieces on the chess-board. He does not consider that the pieces in chess have no other principle of movement than that which the hand imparts to them; but in the great chess-board of human society each individual piece has its own principle of movement, quite different from that which the legislator would presumably choose to impose upon it. If these two principles coincide and act in the same direction, the game of human society will go on smoothly and harmoniously, and in all probability will be happy and successful. If they are opposed or different, the game will go on unhappily, and at every moment society must be in the utmost disorder"

Bulgaria's commitments to the Common Agricultural Policy of the European Union are a serious challenge for the functioning of a number of agricultural sectors and for supporting their positions on international markets. The scientific interest in the use of specific forms of marketing strategies in beekeeping and grain production is the basis for the monographic study of Associate Professor Lyubomir Lyubenov "Marketing strategies of agro-sectors and regions: a factor for supra-regional competitiveness". It proposes scientifically based concepts for the application of marketing inst-umentarium by creating sustainable functional structures for successful market segmentation of bee products and utilization of regional economic potential.