{"title":"The weak-form efficiency of cryptocurrencies","authors":"Jacek Karasiński","doi":"10.18559/ref.2023.1.198","DOIUrl":"https://doi.org/10.18559/ref.2023.1.198","url":null,"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.","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136255099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Application of the vector-autoregression VAR model in the analysis of unemployment hysteresis in the context of Okun’s Law","authors":"Patryk Kołbyko","doi":"10.18559/ref.2022.2.4","DOIUrl":"https://doi.org/10.18559/ref.2022.2.4","url":null,"abstract":"\u0000 \u0000 \u0000 \u0000Unemployment is an important macroeconomic issue both in theoretical terms and for economic reality. On the theoretical ground, the unemployment rate, which is a measure of the share of unemployed units of the labour supply in the economy, determines the output gap at a certain adjustment parameter determined by the marginal productivity of labour. One of the causes of rising or persistent unemployment in the economy is the phenomenon of unemployment hysteresis, which occurs as a result of changes in the marginal disutility of labour, the strength of the wage bargain and other exogenous conditions arising in previous periods. The purpose of the study conducted in the following paper is to investigate the phenomenon of hysteresis in the labour market by analysing the significance of the impact of the unemployment rate in previous periods. In addition, the work aims to study Okun’s Law as an effect of production dynamics on the unemployment rate. The study of the dependence was carried out through the estimation of a macroeconometric time series model—vector-autoregression (VAR) on the example of statistical data for Poland obtained from Statistics Poland (Stat.gov.pl) and complied raports about national accounts in the quarterly sequence for the years 2015–2021. \u0000 \u0000 \u0000 \u0000","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133632465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. Nzeh, H. Ogwuru, David Ogomegbunam Okolie, Jonathan Ibekwe Okolie
{"title":"Economic openness, institutional quality and per capita income: Evidence from the Economic Community of West African States (ECOWAS)","authors":"I. Nzeh, H. Ogwuru, David Ogomegbunam Okolie, Jonathan Ibekwe Okolie","doi":"10.18559/ref.2022.2.3","DOIUrl":"https://doi.org/10.18559/ref.2022.2.3","url":null,"abstract":"\u0000 \u0000 \u0000 \u0000The controversy surrounding the actual impact of institutional quality and economic openness on economic growth is among the motivating factors for this study. The study seeks to investi- gate this relationship in the Economic Community of West African States (ECOWAS) by using the panel autoregressive distributed lag (ARDL) test with annual series covering the period from 2000 to 2020. Findings indicate that in the short-run, regulatory quality and FDI outflows had an adverse impact on the economic performance of the ECOWAS bloc. Furthermore, the long-run results show that trade openness, political stability and FDI outflows had an adverse impact on the economy of the bloc, while regulatory quality positively affected the economy. Consequently, the paper recommends that member countries in the ECOWAS bloc should put in place effective regulatory framework in the short and medium term to attract FDI inflows, while building a strong and stable political environment in the long term. \u0000 \u0000 \u0000 \u0000","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115244153","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reforms to the Israeli income tax","authors":"Beny Tzarfati","doi":"10.18559/ref.2022.2.1","DOIUrl":"https://doi.org/10.18559/ref.2022.2.1","url":null,"abstract":"\u0000 \u0000 \u0000 \u0000Income tax is a major component of state revenues, earmarked to finance the services provided by the government. Income taxes have a significant impact, among other things, on economic growth and income distribution. According to economic theory, personal income tax—perceived as progressive tax—is the main policy tool of the governments of developed countries and is aimed at reducing inequality in income distribution. The Israeli in- come tax has been through major reforms in the last decade and a half. These reforms include a reduction in income tax exemp- tions, steadily decreasing tax rates, simplification of tax calculation rules, reallocation of resources from the public and revenue sharing by reducing the income tax burden on the middle classes, a transfer from territorially based taxation of income earned or accrued in Israel to personally based taxation of income of Israeli residents, regardless of the place of earning the income. The result of changing the tax system and the transition to taxation on a personal basis means, in practice, an expansion of the tax base in Israel. This paper aims to describe the income tax prior to the reforms and the major reforms that had taken place up to 2017. \u0000 \u0000 \u0000 \u0000","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131301828","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Environmental, Social and Governance Responsibility, financial performance and assets: A study of Exchange Traded Funds","authors":"Gerasimos G. Rompotis","doi":"10.18559/ref.2022.2.2","DOIUrl":"https://doi.org/10.18559/ref.2022.2.2","url":null,"abstract":"\u0000\u0000\u0000\u0000Two research questions are examined in this study with a sample of 168 passive Exchange Traded Funds (ETFs). The first one asks whether a high Environmental, Social and Governance Responsibility (ESG) rating induces investors to allocate more money in an ETF. The empirical findings indicate that the level of assets is not affected by the ESG rating whatsoever, but it is affected by factors such as the historical performance, the expense ratio and the age of each fund. The second question raised concerns the relationship between the performance of an ETF and its ESG rating. The hypothesis examined is that the higher the ESG rating of an ETF is, the higher the return of the ETF should be. The results do not confirm this hypothesis. Not surprisingly, to a large extent, the performance of ETFs is driven by the return of the tracking indexes. To a lesser degree, expense ratio bears a negative impact on ETFs’ performance.\u0000\u0000\u0000\u0000\u0000 ","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117077104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Third time lucky: An analysis of Paris’ bids for the Olympic Games in 2008, 2012 and 2024","authors":"Julia Jastrzabek","doi":"10.18559/ref.2022.2.5","DOIUrl":"https://doi.org/10.18559/ref.2022.2.5","url":null,"abstract":"Hosting the Olympic Games has become a unique occasion to implement several projects aimed at upgrading public infrastructure and improving the economic performance of the host city. Thus, some cities are so determined to host the Olympics that they decide to bid multiple times. One of the examples of such a city is Paris, which since the 2000s has submitted its bids three times, for 2008, 2012, and 2024, of which the last attempt turned out to be successful. Based on the above, the main aim of this article is to present the trajectory of changes and developments made by the three successive bid attempts, with an emphasis on the latest successful campaign. This study demonstrates that there are some recurrent ideas, projects, and plans shared by each bid with some modifications to emphasize their uniqueness, novelty, and up-to-date approach. In some aspects, the Paris 2024 bid builds on its previous candidature from 2012 in the field of long-term legacy effects and sustainability. Therefore, there is a consistent action taken by the bid managers and city authorities in terms of using the Olympic Games as a tool for urban regeneration and sports development.","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115720692","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Limiting meat consumption in the view of the students of the Poznań University of Economics and Business","authors":"Marceli Hązła, Kamila Michowska","doi":"10.18559/ref.2022.2.6","DOIUrl":"https://doi.org/10.18559/ref.2022.2.6","url":null,"abstract":"\u0000\u0000\u0000\u0000The aim of the study was to examine the attitudes of students at the Poznań University of Economics and Business towards limiting meat consumption, in the context of global trends related to sustainable development. The two main identified areas of consideration are related to the impact of excessive meat production and consumption on human health and the state of the environment. The survey involved 296 respondents (61.8% women, 37.8% men, 0.4% other). Throughout the study, it was found out that more than half (51.4%) of the respondents limit their meat consumption. The gender of the respondents was important in this regard (63.4% of women and 31.3% of men limit their meat consumption). The most frequently cited reasons for limiting meat consumption include concerns for the environment (42.6% of respondents) and the desire to improve health and well-being (41.9% of respondents). Meat consumption decisions among 30.7% of respondents are not influenced by any arguments.\u0000\u0000\u0000\u0000","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125592919","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Polish zloty as an instrument to support the economy in the era of coronavirus","authors":"Eryk Łon","doi":"10.18559/ref.2020.3.5","DOIUrl":"https://doi.org/10.18559/ref.2020.3.5","url":null,"abstract":"The article presents arguments in favour of maintaining monetary sovereignty by Poland. The author expresses the view that having Poland's own currency and its own national monetary policy helps to alleviate crisis phenomena in the economy. The article shows the positive role of the NBP in counteracting the economic crisis caused by the coronavirus epidemic. The NBP lowered interest rates to the lowest level in history and purchased debt securities. The Polish monetary and budgetary authorities managed to stop the decline in GDP and the rise in the unemployment rate. Moreover, the easing monetary policy of the NBP prevented excessive strengthening of the domestic currency against foreign currencies. As a result, the exchange rate was favourable for domestic exports.","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129986431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Poland’s financial sector development in terms of global financial transformations","authors":"T. Marena","doi":"10.18559/ref.2020.3.1","DOIUrl":"https://doi.org/10.18559/ref.2020.3.1","url":null,"abstract":"The paper deals with the study of global financial transformations impact on the financial sector in Poland. Two types of tendencies of the global financial space development that create new conditions for national financial systems are defined,including: trends that lead to qualitative shifts in countries’ financial systems and do not necessarily imply a negative impact on the national financial systems; threatening challenges that shatter financial markets and restrain their sustainable development. The current positions of Poland’s financial sector in the world and regional financial systems are evaluated. The shifts in the national financial sector in terms of global financial transformations are found out. It is stated that while integrating into the global financial space, Poland will increasingly feel the impact of global transformations that will determine further scenarios for the domestic financial sector development. Exogenous factors that can aggravate challenges threatening the stability of Poland’s financial sector in the near future are identified.","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123545458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Economic Freedom and FDI: Co-Integration Analysis","authors":"Selim Corekcioglu","doi":"10.18559/ref.2020.3.4","DOIUrl":"https://doi.org/10.18559/ref.2020.3.4","url":null,"abstract":"These days, economic growth is very important for all countries and this article will discuss the main factors associated with this problem and propose some possible solutions which can be implemented. The importance and relationship of foreign direct investment, economic growth and economic freedom are presented and evaluated by considering literature, and a long run relationship between foreign direct investment and economic freedom in Turkey is empirically analysed in the article. The time period covers the years 1996 to 2018. The data has been obtained from the World Bank and from theHeritage Foundation database. The analysis is based on the time series analysis. An Augmented Dickey-Fuller test hasindicated that the variables are not stationary at levels, but they are stationary at the first difference. The Johansen test hasshown that variables are co-integrated, which means that they move together in the long run.","PeriodicalId":290683,"journal":{"name":"Research Papers in Economics and Finance","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127491892","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}