"Scientific research" Almanac

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  SYSTEM OF NATIONAL ACCOUNTS – INSTRUMENT OF MACROECONOMIC ANALYSIS

  SNA is one of the most important instruments of macroeconomic analysis, presenting numerous possibilities for research, modeling and forecasting in the national economy. The study lays out a summary of the contents and new aspects of SNA’2008. The study identifies the ways in which SNA data could and should be used for the purpose of ... SNA is one of the most important instruments of macroeconomic analysis, presenting numerous possibilities for research, modeling and forecasting in the national economy. The study lays out a summary of the contents and new aspects of SNA’2008. The study identifies the ways in which SNA data could and should be used for the purpose of macroeconomic analysis. Development forecasts for Bulgaria have been created on the basis of macroeconomic indicators. The study presents the results of an opinion poll, examining the degree of popularity of SNA among economists and their attitude towards the aspects of its practical application.

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  EQUILIBRIUM IN STOCHASTIC OPTIMIZATION MODELS WITH ECONOMIC APPLICATIONS

  The subject of this work is the application of a linear quadratic model which is a result of the stochastic modeling process in the economic field. A dynamic economic process is modeled, which occurs in conditions described by a stochastic differential equation. The dynamics of the process is subject to jump-like changes. Such systems are known as ... The subject of this work is the application of a linear quadratic model which is a result of the stochastic modeling process in the economic field. A dynamic economic process is modeled, which occurs in conditions described by a stochastic differential equation. The dynamics of the process is subject to jump-like changes. Such systems are known as Markov jump linear systems. The target in the observed process is modeled through a functional which has to be minimized. The result is a linear quadratic stochastic model. The equilibrium search model is related to the numerical solution of a system of generalized discrete-time algebraic Riccati equations. Methods for finding the maximal solution to a system of discrete-time algebraic Riccati equations are investigated. Moreover, new methods and algorithms for computing of this maximal solution are proposed. The numerical characteristics of algorithms are analyzed in special cases of negative definite weighting matrices and indefinite weighting ones. Conclusions are derived of the applicability and efficiency of the proposed methods.

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  INVESTIGATION AND ANALYSIS OF INVESTMENT RISK IN A CRISIS

  The management of investment projects is related to the formation of such an investment portfolio, which would guarantee them the highest financial return. The main characteristic of investments is the „risk-return” ratio. The interdependence between these two categories is generally directly proportional – i.e. the pursuit of higher returns ... The management of investment projects is related to the formation of such an investment portfolio, which would guarantee them the highest financial return. The main characteristic of investments is the „risk-return” ratio. The interdependence between these two categories is generally directly proportional – i.e. the pursuit of higher returns involves taking more risk and conversely, low-risk investments inherently carry more modest but secure returns. What determines the choice of suitable investment are personal preferences and willingness of each investor to take the risk. Collective investment schemes and insurance companies are among the most important players in the global financial market. The trends for sustainable development in a crisis are revealed by performing a retrospective, diagnostic and prognostic financial analysis of risk and return on temporarily invested free funds of life insurance companies and by studying the effectiveness of investment funds portfolio management.