"Scientific research" Almanac

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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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  ASPECTS OF THE INTERACTION AMONG FINANCIAL CONTROL INSTITUTIONS IN THE PUBLIC SECTOR OF THE REPUBLIC OF BULGARIA

  There are several control institutions in Bulgaria whose common subject is public finance. These are the Bulgarian National Audit Office, the Public Financial Inspection Agency, and the Internal Audit Directorate. The fact that these bodies have a common subject of control implies uniformity of the control they exercise as well as the ... There are several control institutions in Bulgaria whose common subject is public finance. These are the Bulgarian National Audit Office, the Public Financial Inspection Agency, and the Internal Audit Directorate. The fact that these bodies have a common subject of control implies uniformity of the control they exercise as well as the establishment of certain interrelations among them and the coordination of the control procedures they apply. Surveys conducted so far indicate that despite the agreements which these control institutions have signed, there is rather weak cooperation among them in practice. In addition, the volume of information they exchange before initiating control operations is fairly small, which results in duplicating the activities performed in entities which are subject to control. Hence, the lack of coordination and interaction leads to increased costs of financial audit in the public sector and diminish its efficiency. It is therefore necessary to reorganize the communication among bodies engaged in public finance control.

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  DEVELOPMENT OF THE SYSTEM OF SCIENTIFIC RESEARCH AT D. A. TSENOV ACADEMY OF ECONOMICS (A modest anniversary – a modest view of what has been done)

  The study is dedicated to the fifteenth anniversary of the Institute of Scientific Research at D. A. Tsenov Academy of Economics and the decision to publish the Scientific Research Almanac. It makes a historical review and outlines the main points of the development of the institute and the almanac. It systematizes the issues and publications of ... The study is dedicated to the fifteenth anniversary of the Institute of Scientific Research at D. A. Tsenov Academy of Economics and the decision to publish the Scientific Research Almanac. It makes a historical review and outlines the main points of the development of the institute and the almanac. It systematizes the issues and publications of the Scientific Research Almanac. Current priorities are presented as well as some opportunities for the development of scientific research at D. A. Tsenov Academy of Economics.