The main aim of this study is to present a systematic literature review (SLR) of the sustainable energy development (SED) and emphasize important activities relevant to this concept. The following set of research tasks was adopted to achieve the main aim: (1) presentation of the distribution of articles by year (both journal and conference papers) on the SED concept; (2) identification of the most frequently cited articles on the SED concept; (3) identification of the countries that have contributed most to the development of the SED concept through publication activities; (4) demonstration of the subject areas most frequently associated with the SED concept; (5) presentation of the various definitions of the SED; (6) identification of the most important activities carried out under the SED; and (7) presentation of future research directions for the SED. It is worth noting that the research tasks undertaken will be both quantitative and qualitative. The data search was conducted on 31 August 2022, and the selected peer-reviewed database was Scopus. The exclusion process resulted in a total of 607 journal and conference papers. The most important conclusion to be derived from this study is that there is no one unified definition of the SED. Moreover, three activities must be undertaken to realize the SED concept: (1) increasing the use of renewable energy sources in the energy mix, (2) enhancing energy efficiency, and (3) reducing emissions of greenhouse gases and air pollutants. The article also presents the authors’ conceptual model that can serve as a starting point for further analyses in this area.

The primary aim of this study was to assess and classify selected EU countries to groups differing in terms of the degree of implementation of innovative energy technologies to alleviate adverse externalities in road transport. This aim was realised using three groups of research methods: collection of empirical data, data processing and presentation of study outcomes. When collecting the research material, the authors used the method of critical literature review and the documentation method. The research material was processed using the agglomerative clustering technique, which was one of the hierarchical clustering methods. The distance between objects (here, selected EU countries) was determined based on the Euclidean distance. The outcome of this analysis was a dendrogram, which constitutes a graphical interpretation of obtained results. The study was conducted on 21 EU countries. The analyses covered the years 2013–2019. The sources of materials included literature on the subject and the Eurostat data. The problem of innovative energy technologies in road transport is presently of considerable importance. This results from the current situation related to human activity. As a result of the conducted cluster analysis, groups were distinguished based on differences in the use of innovative energy technologies alleviating negative externalities generated by road transport. The first group comprised Sweden, the Netherlands and Finland. Compared to the other groups, this group was distinguished by the highest values of four indexes, i.e., the share of renewable energy sources used in transport in 2019, the share in the market of electric passenger vehicles in 2019, the share in the market of electric lorries in 2019, as well as the share in the market of hybrid automobiles in 2019. Countries which participated the least in the elimination of negative externalities generated by road transport included Romania, Hungary, Greece, Poland, Latvia and Estonia.

The aim of the article is to present the state of food security in Poland and the three neighbouring Eastern European countries: Russia, Belarus and Ukraine. The analysed countries differ in terms of the size of their economic potential, the size of the economies, and the level of their development. The economy of each country is also marked by specific characteristics. In the first part, the paper presents the theoretical basis of food security as an element of economic security. In the next part, the characteristics of the analysed countries are presented showing their specificity and main determinants of development. The empirical part describes the state of food security in the examined countries using the Global Food Security Index, which was developed at the request of DuPont by the Economist Intelligence Unit. Three components of the food safety index are presented: price availability, access to food as well as food quality and safety. Considering some determinants of food safety components, an attempt was made to assess the impact of economic development of individual countries on their food security

W polskim przemyśle spożywczym trwają procesy koncentracji i konsolidacji przejawiające się w przejmowaniu przedsiębiorstw tego przemysłu przez krajowych i międzynarodowych inwestorów. Doprowadziły one do znacznej koncentracji w niektórych działach przemysłu spożywczego, a szczególnie w produkcji piwa, wina oraz wyrobów tytoniowych. Jednak stopień koncentracji przemysłu spożywczego jest wyraźnie mniejszy niż całego przemysłu przetwórczego. Wynika to ze specyfiki produkcji żywności charakteryzującej się między innymi relatywnie małą majątkochlonnością i dużą pracochłonnością, silnym powiązaniem zakładów przetwórczych z rynkami lokalnymi oraz różnorodnością asortymentową i krótkimi seriami produkcji.

The main aim of this study is to perform a bibliometric analysis (BA) examining the use of renewable energy sources (RESs) in agriculture. To fulfill this aim, several research tasks were outlined: (1) analyze the distribution of publications by year regarding the application of RESs in agriculture (agriculture as a consumer and producer of RESs); (2) identify the most cited articles in this area; (3) determine which countries have made the most significant contributions to the field through their research outputs; (4) highlight the main subject areas linked to RES use in agriculture; (5) explore various practical aspects of implementing RESs in agricultural practices; and (6) suggest potential future research directions in this domain. Both quantitative and qualitative methods were employed to tackle these tasks. The data collection process was completed on 18 July 2024, using the Scopus database to access peer-reviewed sources. After filtering the results, a total of 317 journal and conference papers were selected for further analysis. The study’s key finding reveals that while renewable energy sources are already being integrated into agriculture, there is still a notable lack of comprehensive research in several critical areas. Specifically, it remains unclear whether the adoption of renewable energy in agriculture leads to enhanced operational efficiency, better cost-effectiveness, and improvements in environmental sustainability.

The aim of the paper was to present a technological gap problem, noticed between developed countries and developing countries, as well as methods of minimizing the gap. Moreover, the author compared measures of innovation creation in different countries and indicated problems with implementation National Innovation Systems in developing countries. Finally, signi? cance of new technologies transfer in developing countries’ economic development and role of transnational corporations in the transfer were described.