Economics 21

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  Methodological and Methodical Issues of the Economic Sustainability of Agriculture and Agricultural farms

  Based on a critical review of scientific literature, the category ‘economic sustainability’ is defined as the dynamic development of agrarian systems over a long period of time in line with the changes in the external and internal environment which ensures efficient performance, good financial condition and competitiveness. We observe the ... Based on a critical review of scientific literature, the category ‘economic sustainability’ is defined as the dynamic development of agrarian systems over a long period of time in line with the changes in the external and internal environment which ensures efficient performance, good financial condition and competitiveness. We observe the hierarchical levels of the system for assessing economic sustainability to first select the principles, and then the criteria and indicators to be employed in the assessment, so as to reveal the characteristics and the underlying and significant aspects of the performance of the agricultural sector and agricultural farms.

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  DESIGNING THE INVESTMENT PROFILE OF THE SHARES TRADED ON THE BULGARIAN STOCK EXCHANGE IN THE PERIOD FROM AUGUST 2016 TO DECEMBER 2017

  The analysis of shares performance is normally focused on risk and yield, while the third investment parameter, market liquidity, is usually ignored. In contrast to the world’s biggest stock exchanges where market liquidity is taken for granted, it seems to be a major issue for developing capital markets, such as the stock exchanges in new Balkan ... The analysis of shares performance is normally focused on risk and yield, while the third investment parameter, market liquidity, is usually ignored. In contrast to the world’s biggest stock exchanges where market liquidity is taken for granted, it seems to be a major issue for developing capital markets, such as the stock exchanges in new Balkan economies. This research paper introduces and employs a model of complex market liquidity assessment of the traded companies. We employ the Frequency Analysis of Volatility to add to the research value of Risk analysis, the coherent alternatives of VaR and the investment profile of traded shares. Based on the complex set of methods employed in our research, we present comprehensive investment profiles of the companies with the highest and the lowest market capitalization which are constituents of the four Bulgarian Stock Exchange indices about the period from August 2016 to December 2017.

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  MODELLING CONSUMER BEHAVIOUR ON THE ENERGY MARKET

  Consumer behavior models make it possible to visually present in charts researched entities and the processes they go through, as well as the changes which occur should some variables which affect those processes change. The objective of this paper is to design a meaningful model which may be employed to describe in detail consumer behavior in the ... Consumer behavior models make it possible to visually present in charts researched entities and the processes they go through, as well as the changes which occur should some variables which affect those processes change. The objective of this paper is to design a meaningful model which may be employed to describe in detail consumer behavior in the process of purchasing energy. The subject of the research is energy consumers, while its objects are the models which could be employed to describe consumer behavior when consuming energy. The analysis we conducted indicated that in order to accomplish our objective we need to account for emotional responses, norms and social factors and major economic variables (prices, incomes, prices of substitute goods).