This paper focuses on identifying of possible opportunities for local people, living in Pamir Alai region of Kyrgyzstan, particularly in Kashka Suu and Alaiku, by conducting analysis of such value chains as wool production and collection of berries and medicinal herbs. Identification of key...

In this study Data Envelopment Analysis (DEA) is used not only to develop an efficiency index which combines economic activity, CO2 emissions and energy consumption of the production process in the 31 countries of Europe for the year 2004, but also to make estimates about the margins of long...

Basing on official statistical data, the article presents changes in R&D taking place in Poland in 1975-2009. In 1975 the Polish centrally-planned economy held a strong position in Europe, especially if we measure it by the number of scientific and technical staff employed in research and...

This paper analyses indicators to study the sustainability of tourism in inland Istria, which comprises 24 municipalities and towns belonging to Istria County. Taking into account the criteria of availability, reliability, predictability, clarity and feasibility, the following quantitative...

In this paper, a fuzzy multiobjective mathematical programming model for operational transport planning in a supply chain is presented. The objectives of the proposed model are the minimization of the number of used trucks and the total inventory level, by considering vehicle capacities as a...

This paper presents a critical analysis of some of the techniques which are applied in practice to obtain composite indicators from a previous sub-indicator system. In studying each methodology, we identify the advantages and disadvantages associated with them, paying particular attention to...

This paper analyzes the importance of having a network of stations adapted to vehicles carrying dangerous goods. In the r̄st place, it is studied the current demand which is offered by the existing parking areas, and in the second place, it is explained a maximum coverage location model in...

The generalized truck-and-trailer routing problem (GTTRP) constitutes a uniēd model for vehicle routing problems with trailers and a fixed lorry-trailer assignment. The GTTRP is a generalization of the truck-and-trailer routing problem (TTRP), which itself is an extension of the well-known...

In this paper we investigate how to allocate the available budget for agri-environmental measures to maximise environmental benefits and to minimise potential negative side effects resulting for farmers from the implementation of agri-environmental measures. According to the governmental and EU...

In the present paper an analysis of the neo-classical optimization model with linear constraints is proposed. By introducing the dual problem it is shown that the solution to the maximization problem is also a solution to the minimization problem. The purely theoretical model proposes a...