"Scientific research" Almanac

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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.

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  OUTSOURCING OPPORTUNITIES FOR INCREASING THE COMPETITIVENESS OF MACHINE-BUILDING ENTERPRISES

  This study aims to identify the outsourcing opportunities for increasing the competitiveness of machine-building enterprises. The following main tasks are solved to achieve the stated objective: first, the state of the machine-building enterprises is investigated and assessed and the prospects for their development are outlined; second, the ... This study aims to identify the outsourcing opportunities for increasing the competitiveness of machine-building enterprises. The following main tasks are solved to achieve the stated objective: first, the state of the machine-building enterprises is investigated and assessed and the prospects for their development are outlined; second, the opportunities for gaining competitive advantages by using the potential of outsourcing are analyzed and evaluated; third, the degree of use of these opportunities is analyzed and evaluated based on the empirical study. The study includes 26 machine-building enterprises from Veliko Tarnovo district. The state of enterprises, outsourcing implementation, functions and activities that are often assigned to external specialized organizations, as well as various competitive advantages resulting from the implementation of this business model, are revealed based on data from the surveys.

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  PRODUCTION AND MARKETS OF GENETICALLY MODIFIED ORGANISMS, FOODS AND AGRICULTURAL PRODUCTS

  This paper aims to study and find out the problems in the production and markets for agricultural products in terms of genetically modified organisms and genetically modified foods. To achieve this aim the influencing factors, defined in the tasks, are identified. The scarcity of land as a resource, the global economic crisis, food security, ... This paper aims to study and find out the problems in the production and markets for agricultural products in terms of genetically modified organisms and genetically modified foods. To achieve this aim the influencing factors, defined in the tasks, are identified. The scarcity of land as a resource, the global economic crisis, food security, global famine and some other factors make it necessary to create species sustainable to natural and climatic conditions, on the one hand. On the other hand, the insufficient information about how safe species are in terms of production, distribution and use of genetically modified organisms and foods requires state intervention. The agricultural sector is a strategic sector that requires the application of well-grounded economic measures by the government for seeking ways to control and eliminate potential negative consequences in terms of providing normal conditions for the existence of humans, plants and animals and protection of environment.