"Scientific research" Almanac

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  MANAGING PROJECTS FOR ELECTRICITY PRODUCTION FROM RENEWABLE ENERGY SOURCES

  The main purpose of the present study is to identify possibilities for improving the management of renewable energy projects in Bulgaria. This goal is achieved by completing the following tasks – reviewing the characteristics of renewable energy project management as a factor of ecologically-oriented company policies; outlining the possibilities ... The main purpose of the present study is to identify possibilities for improving the management of renewable energy projects in Bulgaria. This goal is achieved by completing the following tasks – reviewing the characteristics of renewable energy project management as a factor of ecologically-oriented company policies; outlining the possibilities for improving management mechanisms of such projects within companies. The object of study is the renewable energy projects carried out in Bulgaria and in particular the possibilities for effective company management of photovoltaic parks. Special attention is paid to the possibilities for overcoming setbacks in the management of such projects regardless of the causes that have led to them. The study proposes a flexible model for managing renewable energy projects (photovoltaic parks) by companies as a way of implementing ecologically-oriented practices.

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  ANALYSIS OF SUPPLEMENTARY PENSION FUNDS OPERATIONS IN BULGARIA

  The purpose of this research paper is to evaluate pension funds operations in Bulgaria. The achievement of this goal involves reviewing the following tasks: Clarifying the nature and goals of supplementary pension insurance; Evaluation of the macroeconomic environment for the development of supplementary pension insurance; Analysis of ... The purpose of this research paper is to evaluate pension funds operations in Bulgaria. The achievement of this goal involves reviewing the following tasks: Clarifying the nature and goals of supplementary pension insurance; Evaluation of the macroeconomic environment for the development of supplementary pension insurance; Analysis of supplementary pension insurance funds operations in Bulgaria for the period 2007-2011 according to the following indicators: achieved investment results, net assets, and number of insured people. The main thesis of the current research paper supports the idea that the functioning of pension funds is closely related to the macroeconomic environment. It influences investment policies and the financial situation of private pension funds, as well as the capitalization of individual accounts of insured people. We have formulated the following conclusions based on the current study: Supplementary pension insurance provides supplementary insurance protection against the following risks: disability, old age, death; Supplementary pension insurance leads to increased pension savings; The size of payments of supplementary pension insurance to insured or entitled people depends on the accrued funds in the individual accounts and their investment gains; Due to the global economic crisis there has been a drop in profitability that has affected all pension funds. Net assets have decreased in professional and voluntary pension funds; The Sharpe ratio gives a comprehensive overview of the investment policy of pension providers; By assessing the Sharpe's ratio, we can conclude that the leader among pension providers is “Rodina” PIC .

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  PREDICTING DEMAND OF BUNDLED TELECOMMUNICATIONS SERVICES USING DISCRETE CHOICE-BASED MODELS

  This study explores consumer choice of bundled telecommunications services and empirically investigates some new possibilities of menu-based choice models for explaining and predicting the share of preferences. It demonstrates how to use menu-based conjoint analysis, aggregate multinomial logit and hierarchical Bayes models in order to estimate ... This study explores consumer choice of bundled telecommunications services and empirically investigates some new possibilities of menu-based choice models for explaining and predicting the share of preferences. It demonstrates how to use menu-based conjoint analysis, aggregate multinomial logit and hierarchical Bayes models in order to estimate part-worth utilities of attributes and price levels of digital telecommunications services for home users. A spreadsheet-based analytical simulation model for predictive analysis of the demand structure for alternative scenarios is composed based on empirical estimates of preferences. Our research purpose is to offer and demonstrate opportunities for optimal planning of product bundles that match the actual and potential customers’ expectations and willingness to pay.