Template-Type: ReDIF-Article 1.0 Author-Name: Kamila Turečková Author-Workplace-Name: Silesian University in Opava, Czechia Author-Name: Jan Nevima Author-Workplace-Name: Silesian University in Opava, Czechia Title: Smart public goods: A smart bench does not necessarily make smart city in the Czech Republic Publication-Status: Published Abstract: Our paper summarises the results of a study conducted at the turn of 2021 and 2022 on the awareness of the existence of smart benches in the public space of Czech cities and municipalities. Smart benches represent one of a number of smart features that are implemented as part of the practical application of the smart city concept into the real environment of these municipalities. As our research has shown, the experience and awareness of smart public goods, specifically Smart benches, is currently at a rather low level among the public in the Czech Republic. This finding may trigger a discussion on their public justification in the context of their acquisition costs, but also, on the other hand, accentuate the need for their greater promotion. Keywords: smart city; smart public goods; smart bench; Czechia Journal: Research Papers in Economics and Finance Pages: 7-20 Volume: 7 Issue: 1 Year: 2023 Month: October DOI: 10.18559/ref.2023.1.189 File-URL: https://journals.ue.poznan.pl/REF/article/view/189 File-Function: Abstract page File-Format: text/html File-URL: https://journals.ue.poznan.pl/REF/article/download/189/653 File-Function: Full text File-Format: application/pdf Handle: RePEc:jbl:ref000:v:7:y:2023:i:1:id:189 Template-Type: ReDIF-Article 1.0 Author-Name: Piotr Lis Author-Workplace-Name: Poznań University of Economics and Business, Poland Title: Preface Publication-Status: Published Abstract: Dear Readers, We are pleased to present the latest issue of the Research Papers in Economics and Finance published by the Poznan University of Economics and Business Press. To create this issue, we made a considerable selection of papers. As a result, we are sharing with you only the best articles. We believe that the papers we publish add significant value to science in the field of economics and finance. Yours faithfully, Piotr Lis, Editor in Chief             Keywords: Research Papers in Economics and Finance Journal: Research Papers in Economics and Finance Pages: 4-5 Volume: 7 Issue: 1 Year: 2023 Month: October DOI: 10.18559/ref.2023.1.886 File-URL: https://journals.ue.poznan.pl/REF/article/view/886 File-Function: Abstract page File-Format: text/html File-URL: https://journals.ue.poznan.pl/REF/article/download/886/659 File-Function: Full text File-Format: application/pdf Handle: RePEc:jbl:ref000:v:7:y:2023:i:1:id:886 Template-Type: ReDIF-Article 1.0 Author-Name: Zuzanna Rataj Author-Workplace-Name: Poznan University of Economics and Business, Poland Title: The definition and taxonomy of collaborative housing as bottom-up and community-based forms of meeting housing needs in Poland Publication-Status: Published Abstract: The concept of collaborative housing emerged in Poland less than a decade ago. From the historical perspective, living in a community has a long tradition. In Poland, the first projects operating similarly to collaborative housing initiatives emerged right after World War I, when destroyed cities experienced scarcity of flats and houses. Currently, the form and conditions to be met by pro- jects in order to be classified into collaborative housing as under- stood nowadays are changing. The concept is based on collaborative housing projects successfully operating in the countries of Western Europe. In Poland, only few such investments have been established (Nowe Żerniki, Kooperatywa Mieszkaniowa Pomorze and Kooperatywa Mieszkaniowa Konstancin – this project is constructed with support of Habitat for Humanity Poland). In the face of the ongoing socioeconomic changes, however, they might become an interesting alternative to commercial housing construction.  Keywords: collaborative housing; co-housing; community-based; bottom-up; Poland Journal: Research Papers in Economics and Finance Pages: 21-30 Volume: 7 Issue: 1 Year: 2023 Month: October DOI: 10.18559/ref.2023.1.477 File-URL: https://journals.ue.poznan.pl/REF/article/view/477 File-Function: Abstract page File-Format: text/html File-URL: https://journals.ue.poznan.pl/REF/article/download/477/654 File-Function: Full text File-Format: application/pdf Handle: RePEc:jbl:ref000:v:7:y:2023:i:1:id:477 Template-Type: ReDIF-Article 1.0 Author-Name: Jacek Karasiński Author-Workplace-Name: University of Warsaw, Poland Title: The weak-form efficiency of cryptocurrencies Publication-Status: Published Abstract: This study aimed to examine the weak-form efficiency of some of the most capitalised cryptocurrencies. The sample consisted of 24 cryptocurrencies selected out of 30 cryptocurrencies with the highest market capitalisation as of October 19, 2022. Stablecoins were not considered. The study covered the period from January 1, 2018 to August 31, 2022. The results of robust martingale difference hypothesis tests suggest that the examined cryptocurrencies were efficient most of the time. However, their efficiency turned out to be time-varying, which validates the adaptive market hypothesis. No evidence was found for the impact of the coronavirus outbreak and the Russian invasion of Ukraine on the weak-form efficiency of the examined cryptocurrencies. The differences in efficiency between the most efficient cryptocurrencies and the least efficient ones were noticeable, but not large. The results also allowed to observe some slight differences in efficiency between the cryptocurrencies with the largest market cap and cryptocurrencies with the lowest market cap. However, the differences between the two groups were too small to draw any far-reaching conclusions about a positive relationship between the market cap and efficiency. The obtained results also did not allow us to detect any trends in efficiency. Keywords: efficient market hypothesis; adaptive market hypothesis; weak-form efficiency of cryptocurrencies; martingale difference hypothesis; cryptocurrency markets Journal: Research Papers in Economics and Finance Pages: 31-47 Volume: 7 Issue: 1 Year: 2023 Month: October DOI: 10.18559/ref.2023.1.198 File-URL: https://journals.ue.poznan.pl/REF/article/view/198 File-Function: Abstract page File-Format: text/html File-URL: https://journals.ue.poznan.pl/REF/article/download/198/655 File-Function: Full text File-Format: application/pdf Handle: RePEc:jbl:ref000:v:7:y:2023:i:1:id:198 Template-Type: ReDIF-Article 1.0 Author-Name: Constantinos Challoumis Author-Workplace-Name: National and Kapodistrian University of Athens, Greece Title: Currency rate and the Cycle of Money theory Publication-Status: Published Abstract: The current paper explains the fundamental concepts of CM theory (Cycle of Money Theory or otherwise known as Cycle Money Theory). The theory of the Money Cycle examines an economy as a whole, therefore the structure of the economy and the distribution of money in the economy is evaluated in terms of how they interact. An economy with a high index of the money cycle indicates prosperity. The current paper demonstrates that tax evasion causes a delay in tax revenue. Tax evasion, on the other hand, has caused economic harm to the economy because money is stored for tax havens rather than the local banking system. Inflation is the economic disease of the inadequate structure of the economy, because of the not appropriate distribution and reuse of money. Functionality (economic activity) and structure of the economy are connected through the way that money moves in an economy or is lost from it. The currency rate in this paper is analyzed based on the theory of the Cycle of Money. Keywords: currency rate; exchange rate; inflation; the Cycle of Money Theory Journal: Research Papers in Economics and Finance Pages: 48-66 Volume: 7 Issue: 1 Year: 2023 Month: October DOI: 10.18559/ref.2023.1.195 File-URL: https://journals.ue.poznan.pl/REF/article/view/195 File-Function: Abstract page File-Format: text/html File-URL: https://journals.ue.poznan.pl/REF/article/download/195/656 File-Function: Full text File-Format: application/pdf Handle: RePEc:jbl:ref000:v:7:y:2023:i:1:id:195 Template-Type: ReDIF-Article 1.0 Author-Name: Mike Skorupski Author-Workplace-Name: Independent researcher, USA Title: Market beta coefficient and enterprise risk management: A literature review Publication-Status: Published Abstract: One of the significant factors in the valuation of publicly listed firms is their market beta coefficient, commonly utilised in the capital asset pricing model (CAPM) as a proxy for stock volatility directly affecting market value. This article’s primary purpose is to explore the theoretical basis for future empirical research into the relationship between the market beta coefficient and enterprise risk management (ERM). The author explores academic literature about various researched variables affecting the market beta coefficient in the context of the neoclassical capital asset pricing model, which was founded on the premise of an efficient market hypothesis.  Keywords: CAPM; Market beta; Beta coefficient; Systematic risk; ERM Journal: Research Papers in Economics and Finance Pages: 67-88 Volume: 7 Issue: 1 Year: 2023 Month: October DOI: 10.18559/ref.2023.1.194 File-URL: https://journals.ue.poznan.pl/REF/article/view/194 File-Function: Abstract page File-Format: text/html File-URL: https://journals.ue.poznan.pl/REF/article/download/194/657 File-Function: Full text File-Format: application/pdf Handle: RePEc:jbl:ref000:v:7:y:2023:i:1:id:194 Template-Type: ReDIF-Article 1.0 Author-Name: El Mehdi Mrhari Author-Workplace-Name: Ibn Tofail University, Morocco Author-Name: Mohammed Hasssouni Author-Workplace-Name: Ibn Tofail University, Av. de L'Université, Kénitra, Morocco Title: Does stock market take into consideration football players’ injuries? Publication-Status: Published Abstract: Injuries are a frequent risk in sports. This article analyses the repercussions of football players’ injuries on the market returns of six European clubs: Ajax, Borussia Dortmund, Manchester United, Olympique Lyonnais, Benfica and Juventus over a period of three years. The originality of this study comes from the absence of scientific articles in this field. Based on the event study methodology, the results indicate that the sensitivity of stock prices to injuries is very low. Furthermore, the results show that the date of injury is a significant variable causing the effect on returns (Borussia Dortmund). However, injury severity, player status and COVID do not influence the price share. Keywords: economics of sports; football players; injury; stock return; event study methodology Journal: Research Papers in Economics and Finance Pages: 89-100 Volume: 7 Issue: 1 Year: 2023 Month: October DOI: 10.18559/ref.2023.1.476 File-URL: https://journals.ue.poznan.pl/REF/article/view/476 File-Function: Abstract page File-Format: text/html File-URL: https://journals.ue.poznan.pl/REF/article/download/476/658 File-Function: Full text File-Format: application/pdf Handle: RePEc:jbl:ref000:v:7:y:2023:i:1:id:476