Improved Cost-Benefit Analysis (CBA) analysis requires a broader analytical framework, in order to perceive each project individually from the perspective of potentially measurable and significant effects on the environment and society as a whole. The main goal of our paper is to assess the financial and economic justification for variant V3 (as the most technically optimal) of the wastewater treatment plant (WWTP) construction project in Nov Dojran, North Macedonia, with the purpose of advancing municipal infrastructure and environmental benefits from improved water treatment. Based on the economic analysis conducted, we conclude that the investment in the WWTP project is justified, because the economic internal rate of return is higher than the opportunity cost of capital (EIRR = 16.38%), the economic net present value is higher than 0, and EBCR (benefit-cost ratio) is greater than 1 (EBCR = 2.11). The highest environmental benefit of 49.2% in total environmental benefits is associated with nitrogen, while phosphorus is the next pollutant in the structure of environmental benefits at 46.1%. The environmental benefits of removing biological oxygen demand (BOD) and chemical oxygen demand (COD) are significantly less important, despite the removal of significant amounts of these pollutants during treatment. The situation is similar with suspended particles.

Research on various environmental topics, among which is the topic of green advertising, has been growing during last three decades, but it is yet to gain its full potential. Since the topic of green advertising has been gaining rising attention of scholars, the body of knowledge on this topic has been growing as well. Green advertising in general aims to promote products produced in an environmentally-friendly manner, or to promote advertiser's corporate responsibility toward an environment. The evaluation of green advertising effectiveness is necessary in order to stimulate cognitive and affective reactions of consumers to green advertisements, as well as their subsequent environmentally friendly behaviour. This article contains the review of the relevant literature on the topic of green advertising effectiveness. The findings of the literature review indicate that green advertising represents an effective communication means to influence consumers' attitudes and behaviour, even though its effectiveness is often mediated by certain factors, like: consumers' environmental consciousness, consumers' regulatory focus, consumers' scepticism, claim type.

Montenegro faces serious challenges in terms of waste tire management. The main goal of our paper is to consider the financial and economic justification of the implementation of the first phase of the project of collection, takeover and transport, sorting, and storage of waste tires from the three municipalities in Montenegro. The financial feasibility analysis pointed out the need to organize the second phase of the project and the production of commercially usable and energy efficient products. That phase would lead to the desired commercial effects and will probably ensure the financial sustainability of the project. The economic feasibility analysis of the project included an assessment of the socio-economic benefits from the emission reduction of the first group of pollutants (PM, SO_X, NO_X, VOC, CO) as a consequence of the waste tires’ destruction, predominantly by combusting them. Unit values of pollution costs by types of gases, adjusted for Montenegro, were defined in the interval from 192 EUR/t for CO to 24,294 EUR/t for PM. We proved that the direct socio-economic benefits of this project are savings in the cost of environmental pollution. The total present value of discounted costs in the observed time period was calculated at the level of EUR 1,620,080, while the total present value of the positive socio-economic effects was estimated at EUR 1,991,180. Dynamic justification indicators suggest that this investment has a satisfactory socio-economic justification, i.e., the economic rate of return is higher than the opportunity cost of capital (ERR = 15.82%), the economic net present value is greater than 0 (ENPV = 371,100 EUR), and the benefit–cost ratio is greater than 1 (B/C ratio = 1.23).

The aim of this study was to analyze the strategies that external stakeholders apply to influence sustainable projects. In order to investigate this phenomenon, we employed a qualitative case study approach considering the Serbian small hydro power plant project. For the purpose of this research, we developed a theoretical framework consisting of four types of different influence strategies, which were identified and then applied to our case. The results show that external stakeholders utilized all four strategies interchangeably, with the goal to influence the project and decision-makers. The case of the small hydro power plant project revealed certain relationships between influence strategies, as well as the intensity and direction of these relationships. It also revealed that external stakeholders were highly motivated by negative impacts on the environment. Five propositions were derived as a result of our research. This paper contributes not just to the project and stakeholder management literature but also to the practical knowledge of project managers. Understanding stakeholder actions and influence is essential to achieving project goals.

The aim of our paper was to construct a model of economic growth determinants for old and new EU and the EU28 countries. We used a strongly balanced panel in the period from 2000 to 2020 and regression equations. For the old EU group, our results showed a high level of statistical significance and a positive effect of gross fixed capital formation, trade openness, government consumption, and population on GDP growth during the observation period. In the new EU group, trade openness, political stability, and government consumption are significant and positively affect economic growth. When we included the moment of accession of new EU members in the analysis, our results showed that gross fixed capital formation, trade openness, political stability, and government consumption had a statistically significant and positive influence on the GDP growth rate. Interestingly, our results did not confirm the expected positive impact of foreign direct investments and renewable energy consumption on economic growth in our sample countries. We found that the crisis is statistically significant and negatively affected the GDP growth rate in both groups with a stronger impact in new EU countries. We conclude our article with policy implications and recommendations for future research.