The relations between multiple imbalanced classes can be handled with a specialized approach which evaluates types of examples’ difficulty based on an analysis of the class distribution in the examples’ neighborhood, additionally exploiting information about the similarity of neighboring classes. In this paper, we demonstrate that such an approach can be implemented as a data preprocessing technique and that it can improve the performance of various classifiers on multiclass imbalanced datasets. It has led us to the introduction of a new resampling algorithm, called Similarity Oversampling and Undersampling Preprocessing (SOUP), which resamples examples according to their difficulty. Its experimental evaluation on real and artificial datasets has shown that it is competitive with the most popular decomposition ensembles and better than specialized preprocessing techniques for multi-imbalanced problems.
This paper fits into the stream of current research on the concept of short-termism and its importance for economic sustainability, especially sustainable finance. Short-termism focuses on short time horizons by both corporate managers and the financial markets, and prioritizes short-time shareholder return over the long-term growth of the company’s value. This study engages the short-termism discussion by examining the effect of quarterly reporting on the long-term market value of listed companies. The aim of the article is to determine whether European companies experience the negative effects of short-termism, precisely, whether public companies that prepare quarterly reports, and which focus mainly on achieving the short-term goals of stock exchange investors, are seeing a decline in their market value in the long-term. We have not proven the existence of such a dependence, the increase in reporting frequency of public companies does not contribute to a decline in their long-term market value. In the case of the EU-15 the results of regression model estimation indicate a positive and statistically significant impact of the time of regular quarterly reporting on the buy-and-hold rates of return, in the “new” EU member states this relationship is not observed.
Large companies in the European Union are required to publish information related to environmental, social and governance (ESG) matters. The aim of our study is to determine the quality of ESG reporting in EU public companies (measured by the ESG-index) and its effect on their market capitalisation. Therefore, the results of our research will be both scientific and applicative, and they will be useful for investors when making investment decisions on the stock exchange. The research includes over 15,000 companies listed on 27 stock exchanges (in the “old” and “new” member states, EU-14 and EU-13, respectively), covering the period 2002 to 2019. The data were obtained from the Refinitiv database. We drew three conclusions after the research. Firstly, only 50% of the companies listed on the stock exchanges in the old EU member states and merely 5% of the companies from the new EU member states had reported ESG-indexes in any year of the research period. Secondly, we found a positive relationship between a company’s market capitalisation and the quality of its ESG reports. Thirdly, the market values of companies are positively but not strongly affected by the ESG-indexes.
Purpose: Current European Union efforts are focused on creating regulations that are conducive to long-term investor commitment, i.e. they are fighting short-termism on financial markets. Enterprises that implement the European Union's environmental policy are seen to engage long-term financial resources, which should therefore dominate the structure of their assets. The primary goal of the paper is to ascertain whether a company's high environmental performance (E-index) is positively correlated with the value of its long-term investments. Design/Methodology/Approach: The empirical research is carried out in two parts. The first part presents the correlation between the company's E-index and the share of its long-term investments in total assets. For comparison, we examine these relationships with ESG, as well as the S and G scores. In the second part, we assess the character and strength of the impact of the company's E-index on the value of its long-term investments. This study includes companies listed on 14 Western European stock exchanges, covering the period 2002 to 2019. Findings: Contrary to our assumptions, we find, first, that the environmental index is negatively related to the share of long-term investments in assets in most countries. Second, using panel dataset for the analysed European Union markets, we find evidence that the environmental index negatively affects the value of long-term investments, indicating that the current actions undertaken by the European Union have no empirical justification. Practical Implications: The results of the research may be useful for researchers, practitioners, and regulators from the European Union and the European Union countries in understanding the relationship between a company's E-index and its investments. Originality/Value: There is no research which proves that the increase in long-term investments, and thus the increase in the availability of long-term capital, is of key importance for enterprises, so our research is pioneering and unique.
In the current international monetary system, the adjustment mechanism does not work properly to eliminate the excessive surpluses/deficits on the current accounts of the major countries that participate in international trade. Consequently, the adjustment changes do not take place in an evolutionary way, through market changes or decisions taken by the national authorities. They are the result of crises that reflect the unfavourable macroeconomic situation in different countries. The article explains the functioning of the adjustment mechanism in the contemporary international monetary system and the circumstances in which significant imbalances emerge at the global (US–China) level. Increasing external imbalances are an immanent systemic feature of the contemporary international monetary system. The lack of an adjustment mechanism in this system leads to the potentially cyclical emergence of such imbalances and their correction by crises. Thus, the current post‑crisis period may only be a stage before the next period of growing imbalances. The remedy for this threat lies in correcting the existing principles of the system.
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