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1.
Age and market capitalization drive large price variations of cryptocurrencies
Arthur A. B. Pessa, Matjaž Perc, Haroldo V. Ribeiro, 2023, izvirni znanstveni članek

Opis: Cryptocurrencies are considered the latest innovation in finance with considerable impact across social, technological, and economic dimensions. This new class of financial assets has also motivated a myriad of scientific investigations focused on understanding their statistical properties, such as the distribution of price returns. However, research so far has only considered Bitcoin or at most a few cryptocurrencies, whilst ignoring that price returns might depend on cryptocurrency age or be influenced by market capitalization. Here, we therefore present a comprehensive investigation of large price variations for more than seven thousand digital currencies and explore whether price returns change with the coming-of-age and growth of the cryptocurrency market. We find that tail distributions of price returns follow power-law functions over the entire history of the considered cryptocurrency portfolio, with typical exponents implying the absence of characteristic scales for price variations in about half of them. Moreover, these tail distributions are asymmetric as positive returns more often display smaller exponents, indicating that large positive price variations are more likely than negative ones. Our results further reveal that changes in the tail exponents are very often simultaneously related to cryptocurrency age and market capitalization or only to age, with only a minority of cryptoassets being affected just by market capitalization or neither of the two quantities. Lastly, we find that the trends in power-law exponents usually point to mixed directions, and that large price variations are likely to become less frequent only in about 28% of the cryptocurrencies as they age and grow in market capitalization.
Ključne besede: cryptocurrency, price variation, market value, econophysics
Objavljeno v DKUM: 25.03.2024; Ogledov: 158; Prenosov: 8
.pdf Celotno besedilo (2,00 MB)
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2.
New suptech tool of the predictive generation for insurance companies : the case of the European market
Timotej Jagrič, Daniel Zdolšek, Robert Horvat, Iztok Kolar, Niko Erker, Jernej Merhar, Vita Jagrič, 2023, izvirni znanstveni članek

Opis: Financial innovation, green investments, or climate change are changing insurers’ business ecosystems, impacting their business behaviour and financial vulnerability. Supervisors and other stakeholders are interested in identifying the path toward deterioration in the insurance company’s financial health as early as possible. Suptech tools enable them to discover more and to intervene in a timely manner. We propose an artificial intelligence approach using Kohonen’s self-organizing maps. The dataset used for development and testing included yearly financial statements with 4058 observations for European composite insurance companies from 2012 to 2021. In a novel manner, the model investigates the behaviour of insurers, looking for similarities. The model forms a map. For the obtained groupings of companies from different geographical origins, a common characteristic was discovered regarding their future financial deterioration. A threshold defined using the solvency capital requirement (SCR) ratio being below 130% for the next year is applied to the map. On the test sample, the model correctly identified on average 86% of problematic companies and 79% of unproblematic companies. Changing the SCR ratio level enables differentiation into multiple map sections. The model does not rely on traditional methods, or the use of the SCR ratio as a dependent variable but looks for similarities in the actual insurer’s financial behaviour. The proposed approach offers grounds for a Suptech tool of predictive generation to support early detection of the possible future financial distress of an insurance company.
Ključne besede: European insurance market, suptech, supervision, financial deterioration identification, neural networks
Objavljeno v DKUM: 25.03.2024; Ogledov: 135; Prenosov: 11
.pdf Celotno besedilo (2,55 MB)
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3.
Proprietary varieties’ influence on economics and competitiveness in land use within the hop industry
Douglas MacKinnon, Martin Pavlovič, 2023, izvirni znanstveni članek

Opis: To evaluate changes to hop industry concentration and competitiveness the Herfindahl-Hirschman Index (HHI) was used. The ownership of hop proprietary varieties, their acreage and production were compared with public varieties. Market share for each proprietary hop variety acreage and production was calculated between 2000 and 2020. The quantity of land under centralized control in the U.S. hop industry due to increased proprietary variety acreage between 2000 and 2020 was quantified. Assuming tacit collusion between the participants in the oligopoly, the HHI enabled us to quantify the portion of land under oligopoly control. The HHI analysis of hop acreage and hop production demonstrated that market concentration rose rapidly between the years 2010 (0.0376 and 0.0729) and 2020 (0.4927 and 0.5394). This resulted in decreasing business competitiveness within the market during this period caused primarily by rapid consolidation of ownership during increased proprietary variety acreage and production increases. Calculations revealed that in 2016 a tipping point had been reached concerning market concentration, which resulted in higher sustained season average prices of hops—a key raw material in brewing.
Ključne besede: hop industry, varieties, market concentration, intellectual property, prices
Objavljeno v DKUM: 21.03.2024; Ogledov: 132; Prenosov: 8
.pdf Celotno besedilo (1,13 MB)
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4.
‘Free-market capitalism’ and democracy in the period of democratic recession : investigating the relationship in 141 countries, 2006–2017
Tibor Rutar, 2023, izvirni znanstveni članek

Opis: Since the mid-2000s, democratization has slowed, stopped, and even reversed across the world. At the same time, societies have become more oriented toward free markets as measured by indexes of economic freedom. Relying on a panel sample of 141 developed and developing countries between 2006 and 2017, this paper is the first to investigate whether the two phenomena are related by employing economic freedom data. It finds that there is no net-negative relationship between aggregate economic freedom and democracy in this time-period. Instead, mixed findings of both an overall positive and overall neutral (but not negative) association are uncovered in between-country and within-country analyses, respectively. In between-country analyses, using the disaggregated index shows that the legal system/property rights component drives most of the positive relationship between aggregate economic freedom and democracy in the developed world. The same between-country analyses in the developing world show that freedom of international trade is positively associated with democracy, while modest regulation has a negative relationship. However, additionally controlling for omitted variable bias using country-fixed effects, the paper does not find evidence for either a positive or negative relationship between subsequent changes in levels of economic freedom and democracy.
Ključne besede: democratic recession, democracy, economic freedom, neoliberalism, free-market capitalism
Objavljeno v DKUM: 13.03.2024; Ogledov: 241; Prenosov: 9
.pdf Celotno besedilo (1,31 MB)
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5.
When the customer and the wine shelf meet : factors of ethnocentrism when selecting a bottle of wine
Vita Petek, Črtomir Rozman, Jasna Potočnik Topler, 2021, izvirni znanstveni članek

Opis: This study examines the importance of wine characteristics when choosing wine, such as the shape and colour of the bottle, type of wine cork, information on the wine label, price and ethnocentrism. Three research questions were proposed in this paper. A quantitative online survey in the form of 458 participants was carried out in Slovenia. Participants were asked questions relating to their wine consumption behaviour. The results of this study show the Spearman's correlation coefficient between ethnocentrism and country-of-origin importance. These findings benefit winemakers who want to improve their wine sales and learn what characteristics of the wine label are significant.
Ključne besede: buying, selling, wine, consumer, wine market, wine label, communication
Objavljeno v DKUM: 24.01.2024; Ogledov: 212; Prenosov: 7
.pdf Celotno besedilo (713,40 KB)
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6.
Energo-economics payback investment calculation modelling of gas-steam combined cycle power plant
Dušan Strušnik, Jurij Avsec, 2022, izvirni znanstveni članek

Opis: The paper deals with energo-economic payback calculation modelling of the combined gassteam cycle operation, demonstrating the basic characteristic properties of cycle behaviour in different operating regimes and calculating the payback period of the investment. The calculation of the payback period of the investment is based on the calculation of the net present value and with actual obtaining data sets from a recently built gas-steam combined cycle power plant. The results of the calculation modelling show that the gas-steam combined cycle power plant can achieve a useful efficiency of up to 88% in the back-pressure operation of the steam turbine. The useful efficiency of the gas turbine is up to 40%. The payback period of the investment depends on the investment costs, the quantity and market price of the consumed fuel, the quantity and market price of the generated electricity and thermal energy. The results show that with a price ratio fuel/electricity of 0.36, the payback period of the investment is 4 years, with a price ratio fuel/electricity of 0.54, the payback period of the investment is as much as 17 years.
Ključne besede: calculation, efficiency, investment, market, modelling, payback
Objavljeno v DKUM: 30.10.2023; Ogledov: 439; Prenosov: 3
.pdf Celotno besedilo (1,81 MB)
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Elderly population and labour market stabilization in Europe : the case of Slovenia
Rasto Ovin, Marko Divjak, Živa Veingerl Čič, Anita Maček, 2021, izvirni znanstveni članek

Ključne besede: elderly population, economic activity, labour market, HRM gap in Slovenia
Objavljeno v DKUM: 01.09.2023; Ogledov: 322; Prenosov: 15
.pdf Celotno besedilo (423,90 KB)
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9.
The role of B2B marketing strategy, ICT B2B marketing support, and service quality in market orientation – Performance relationship : evidence from three European countries
Gregor Jagodič, Borut Milfelner, 2022, izvirni znanstveni članek

Opis: The purpose of this study is to evaluate the role of marketing strategy, information communication technology (ICT) marketing support, and service quality in the market orientation–performance relationship. Even though there are many studies considering the market orientation–performance relationship they rarely take into consideration ICT marketing support and marketing strategy, especially concerning the companies operating in B2B markets. Additionally, this study compares the impacts of the constructs between two emerging economies (Slovenia and Serbia) and one developed economy (Austria) on a random sample of 636 companies. Results were obtained based on the set hypotheses using the covariance-based structural equation modeling (SEM) and invariance testing procedure to make comparisons between the three countries. Market orientation strongly influenced the successful development and implementation of marketing strategies, ICT support, and service quality. The impact of service quality on company performance was statistically insignificant and only the indirect impact of market orientation on company performance through service quality was determined. ICT marketing support and successful development and implementation of B2B marketing strategy were also positively related to company performance. This study can help managers in B2B companies in emerging and developed markets to learn how to use specific marketing resources in order to achieve higher company performance.
Ključne besede: marketing strategy, information-communication technology, service quality, market orientation, firm performance
Objavljeno v DKUM: 17.07.2023; Ogledov: 488; Prenosov: 78
.pdf Celotno besedilo (1,20 MB)
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