The COVID-19 pandemic seems to be the most important phenomenon observed from March 2020 in virtually all countries of the world. The necessity to prevent the spread of COVID-19 and keep health care systems efficient resulted in the forced, drastic limitation of economic activity. Many service sectors were hit particularly hard with this but industry and agriculture were also affected. In particular, the pandemic substantially influenced financial markets and we can observe that some markets or instruments vary in stability since they have been affected in the different degree. In the paper, we present the problem of stability of stock markets during the COVID-19 pandemic. Due to the low number of works related to CEE countries during the pandemic, we analyze the Warsaw Stock Exchange, which is one of the most important markets in the CEE. Our main goal was to find how various industries represented by stock market indices have reacted to the COVID-19 shock and consequently which sectors turned out to keep stability and remained resistant to the pandemic. In our investigation, we use two clustering methods: the K-means and the Ward techniques with the criterion of maximizing the silhouette coefficient and six indicators describing stability in terms of profitability, volume, overbought/oversold conditions and volatility. The results of the research present that during the pandemic it was possible to identify 5 clusters of sector indices in the short term and 4 in the medium term. We found that the composition of the clusters is quite stable over time and that none of the obtained clusters can be univocally considered the most or the least stable taking into account all the analyzed indicators. However, we showed that the obtained clusters have different stability origins, i.e. they vary from each other in terms of the investigated indicators of stability.

Insufficient environment protection may have serious ecological consequences, resulting in a number of problems in the modern world, many of which are a direct result of human behavior. Therefore, one needs to limit negative ecological effects by consciously shaping environment-related behaviors. The present paper analyzes the declared attitudes of individuals when it comes to taking into consideration pro-environmental factors, including energy, consumption, and waste. We have also studied the social awareness of the socially responsible investment idea, as well as pro-ecological individual behaviors related to private finance. Our survey study, conducted on a representative sample of 1030 Polish respondents, shows that participants’ individual features have little impact on pro-ecological decisions, and that declared pro-ecological attitudes are not reflected in actual behaviors. Polish consumers are still not active enough in making decisions concerning pro-ecological actions, first of all, in terms of energy and waste. As a result of the conducted research, we suggest increasing all activities in the field of environmental policy that could increase the participation of society in facilitating sustainable development.

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Motivation: This paper is devoted to the issue of using banking products and services by young people, i.e. children under the age of 13, youths from 13 to 17 years of age and young adults from 18 to 25 years of age. Considering the current fast digitalization in banking as well as increased competition on the financial market, the group of young people naturally becomes an object of interest to banks. Aim: The work is aimed at characterising young people as the clients of banks. In particular the aim of the study is to identify the motives, terms and legal aspects of servicing young people by banks as well as to characterize reasons and frequency of using banking products and services by young people. To deepen the knowledge in scope of functioning of children youths and young adults on the market of banking products and services,

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