Evaluating the economic and ecological effects of investment projects: A new model and its application to smartphone manufacturing in Europe

Meta-analysis is a method that allows us to accomplish such a work by combining the results of several studies in order to make an objective synthesis following precise stages. With the help of meta-analysis, we can quantify a global result for the entire studies taken into consideration and obtain a more precise response and a more acceptable generalization.

This paper focuses on the steps of meta-analysis on resumed data, which are used more frequently, because they can easily tend towards exhaustiveness. The synthesis work has to be standardized. It consists in four stages: studies’ research, selection, data extraction and analysis. Its feasibility is linked to the existence of a sufficient number of studies that can be included in this meta-analysis. This method has been used in research since 1970 and it became irreplaceable for making recommendations. Its application field is only limited to that of existent studies.

Sustainability promotes a feasible strategy to achieve a continuous development of the economy, society, and environment. This study aims to analyze the growing efforts on researches made by academic communities in exploring the sharing economy as a potential approach to promote sustainable development. A bibliometric approach with VOSviewer and COOC analysis was applied. A total number of 975 published articles were analyzed in this study. As a result, it was found that few studies have shed light on collaborative and sustainable consumption, climate change, and bioeconomy in the sharing economy by country, such as renewable resources and business models, circular economy in China, and life cycle assessment, particularly taking evidence from the urban mobility services in China. It was also revealed that there is a new indiscipline research trend in the field of sustainable development such as sustainable business models, game theory, blue economy, peer-to-peer accommodation, smart grids, and electric vehicles. Other trend concentrates on technological advancements and policies to promote sustainable development in the sharing economy.

The paper aims to highlight the status of the circular economy implementation in the EU and Ukraine, as well as to determine the advantages, challenges, opportunities and barriers to transition to circular supply chains. The main problems of waste management in Ukraine are explored, including faulty legislation, underinvestment, state policies and enlightenment regarding the circular economy, formal approach to the implementation of programs and strategies that should improve economic conditions, dominance of most waste-generative – extractive – industries in the economic structure of Ukraine. It is found out that the legislative framework for circular- and bio-economics in Ukraine does not meet the global challenges and requirements of the Association Agreement between Ukraine and the EU and needs urgent improvement measures. Studying the EU experience allowed describing the advantages and challenges of a circular economy that emerge in Ukraine. The article presents a mathematical model aimed at describing the peculiarities of a circular economy in the countries with low and high levels of industrial ecologization as well as understanding conditions for resource conservation during production processes. An econometrical model of the correlation between the solid waste generation, GDP and capital investment into environmental protection in Ukraine is used to demonstrate the absence of the latter’s influence on the waste generation at the current technological level of the national industries. The research results allow developing recommendations for state policy for the industrial sector and environmental protection that may be implemented at the current stage to achieve Sustainable Development Goals 2030.