Renewable energy is the key pillar and plays an important role in the energy systems of European Union member states and in mitigating climate change. It is supporting the transition towards a greener, resource-efficient and more competitive, low-carbon European Union economy. Above-average, average and below-average values of monitored indicators in member states of the European Union in 2009–2016 were ascertained by using principal component analysis. Monitored indicators of the renewable energy sector included electricity generation, electricity capacity, investments of public financial institutions, number of employees and turnover achieved from the economic activities related to production, distribution, installation, operation and maintenance of equipment (all of them per capita). Based on the achieved results, we can state that the situation changed during the period under review. Member states have moved between above-average, average and below-average levels of renewable energy indicators. However, a lack of change in the indicators was recorded in some member states throughout the eight-year period (Finland, France, Ireland, Germany, Austria and Spain did not move significantly). Renewable energy sources (hydro, wind, solar, geothermal and energy from biomass) were evaluated as a whole due to different natural, economic and legislative conditions of European Union countries.
Greening the economy requires green innovations, and innovations require investments. Most countries of the world are still relying on conventional (fossil-based) sources of energy. The transition toward green or renewable energy sources is an effective and innovative way to meet ever-increasing demand as a result of the rising population. Another reason for innovations in the field of green energy is the need to mitigate climate change and avoid pollution, especially in developing countries. The monitored investments into renewable energy sources are usually public. Therefore, this paper aims to determine whether the selected countries of the world produced renewable energy efficiently, considering the investments made by public financial institutions and installed electricity capacity for renewable energy sources, for the period 2013-2017 (for a deeper analysis, the year 2017 was chosen). For this purpose, the Stochastic Frontier Analysis model in the logarithmic form of the Cobb-Douglas production function is used, which helps to judge the competitiveness of countries based on effectively transforming the inputs into outputs. Results suggest that the effect of the first variable "installed electricity capacity" on electricity generation was highly statistically significant, and the impact of the second variable "public investments" was characterized as statistically insignificant. The monitored countries were divided into 10 groups according to the different range of estimated output-oriented technical efficiency from 0.00 to 1.00. Most countries should increase the renewable electricity generation approximately by 40-49%, given the level of inputs (16 countries of 6th group with estimated output-oriented technical efficiency 0.51-0.60) for the year 2017.
Energy is a fundamental factor in cooperation between Kazakhstan and the European Union; both sides strive for energy security but understand it differently. For Kazakhstan, the European Union is the primary export market for energy resources, a source of investment and technology. For the European Union, Kazakhstani oil and gas are the most valuable energy resources of the Central Asian region. The relevance of the chosen topic is that oil and gas are of crucial importance for the economy of Kazakhstan. In the future, Kazakhstan is going to increase production with the European Union. Kazakhstan’s oil and gas industry can be attributed to one of the leading sectors of the country’s economy. The purpose of the scientific paper is to analyse the oil and gas trade between Kazakhstan and the European Union using a time series model to examine Kazakhstan’s oil and gas trade flow, in order to describe its top 5 trade partners in the European Union, also providing objective information on the results and prospects of development of cooperation between Kazakhstan and the European Union in the field of oil and gas trade.
The economic theory distinguishes mainly three production factors, namely labour, soil, and capital. Soil, as a product of nature, is not a free good – its amount is not unlimited. It can be used for agricultural purposes, as energy and non-energy source, and for minerals. Soil is one of the factors of production and at the same time the most important natural resource. We have used three indicators, namely the degree of plowing, the degree of agricultural use and area of agricultural and arable land per capita. The result of the work was the finding that in the observed period (10 years), the area of agricultural and arable land in Slovakia is decreasing. To improve the situation in agriculture, the following could be done: merging fragmented land into larger units, changes in the system of inheritance or a change in allocation of subsidies. Especially the inhabitants of the territory should support the state buy buying on the domestic market and supporting domestic production.
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