European Journal of Business Science and Technology, 2025 (vol. 11), issue 1
Influence of Product Price on Consumer Perceptions of the Authenticity of Sustainability Labels
Julian Hoesen
European Journal of Business Science and Technology 2025, 11(1):5-22 | DOI: 10.11118/ejobsat.2025.001 
In the German-speaking food market, a significant gap exists between consumer preference for sustainable options and purchasing behavior, primarily due to skepticism about the authenticity of sustainability claims. In a study involving 368 participants from Germany, Austria, and Switzerland, the influence of price on the perceived authenticity of sustainability labels was examined. Participants were surveyed on their explicit attitudes, while their implicit attitudes were assessed using the implicit association test (IAT). Results show that a higher price significantly improves the perception of a product's authenticity. Socioeconomic factors, such...
GAM Modelling of Daily Number of Traffic Accidents as a Function of Meteorological Variables in the Czech Republic
Petra Kolísková, Jiří Neubauer
European Journal of Business Science and Technology 2025, 11(1):23-38 | DOI: 10.11118/ejobsat.2024.014
Meteorological conditions exert a considerable influence on traffic patterns. This paper examines the influence of meteorological variables on the daily number of traffic accidents requiring fire brigade intervention. The influence of meteorological variables, including maximum temperature, wind speed, air pressure, precipitation, snow cover and sunshine, was examined. A Generalized Additive Model for variables with a Poisson distribution was employed for modelling purposes, as this allows for the representation of non-linear dependencies. The analysis demonstrates that the lowest incidence of accidents occurs at temperatures approximating 10 °C. The...
The Role of REIT Dividend Policy on Ex-Ante Portfolio Allocation
Metin İlbasmış
European Journal of Business Science and Technology 2025, 11(1):39-66 | DOI: 10.11118/ejobsat.2025.002
To test the diversification benefits of REIT sub-groups formed based on dividend payout ratios, we forecast ex-ante variance-covariance matrices using a rolling window correlation and a DCC model. Regression-based mean-variance spanning tests, mean-variance efficient frontiers, and a minimum variance portfolio allocation approach using ex-ante optimization frameworks are considered. A major finding of the current study is the dividend payout ratios of REITs affect REIT market diversification benefits. Apart from extending stock market index investors’ investment universe and providing more efficient (higher profitability and/or lower risk) portfolios,...
Substitution between Accrual and Real Earnings Management: Impact of Firm Characteristics, Audit Quality, and Institutions
Pham Duc Cuong, Duong Thi Chi
European Journal of Business Science and Technology 2025, 11(1):67-84 | DOI: 10.11118/ejobsat.2025.006
We study the trade-off between real earnings management activities (REM) and accrual-based earnings management (AEM) among newly listed Vietnamese firms from 2009 to 2019. First, we found that firms exhibit REM as well as AEM around listing events to beat earnings targets. We further explore whether managers use REM and AEM as substitutes, considering both internal factors- firms’ characteristics and external factors like audit quality and institutional environments. Our results indicate that companies employ a greater amount of AEM and less REM when they have a higher firm size, measured by total assets, experience higher levels of liquidity....
Social Networks and Conspicuous Food Consumption: A Comparative Study Among Generations Z, X, and Y in the Czech Republic
Jana Brenkusová Pavelková, Jana Turčínková, Jakub Šácha
European Journal of Business Science and Technology 2025, 11(1):85-98 | DOI: 10.11118/ejobsat.2025.004
This study examines the links between conspicuous consumption and user activity on social media platforms, focusing on Generations Z, Y, and X. A set of statements focusing on conspicuous consumption, consumer behaviour on social media, and their food consumption habits was developed and tested on a sample of 679 respondents from the Czech Republic comprising these generations. Factor analysis was used to group tested statements into factors, and regression analysis was used to examine their association with salient consumption patterns. While the link between social media activity and conspicuous consumption was only confirmed for Generation X, the...
Evaluation and Simulation Methods for Ambidexterity Engineering of Digital Supply Chain Systems
Jochen Nuerk, František Dařena
European Journal of Business Science and Technology 2025, 11(1):99-128 | DOI: 10.11118/ejobsat.2025.003
Global mergers and faster business cycles create weakly harmonized supply chain (SC) systems. Industry 4.0’s smart digitalization opportunities significantly alter business model innovation rates. Consequently, the complexity of aligning value exploration and exploitation has increased, often missing the needed integration level. A holistic systems engineering (SE)-driven methodology for innovation, transformation, and optimizing smart SC systems is not available so far. Case studies at SAP SE's development organization for Industry 4.0 SCM solutions and three automotive companies explored objectives, obstacles, and methods for digital transformation....
3D Geospatial Data Visualization in VR
Michal Mitter, Jaromír Landa, Ivo Pisařovic, David Procházka, Michael Varga, František Dařena
European Journal of Business Science and Technology 2025, 11(1):129-140 | DOI: 10.11118/ejobsat.2025.005
The use of Virtual Reality (VR) to visualize data is increasingly common in various fields, from medical science to education. However, visualization of geospatial data in VR is still not handled well. GIS data comes in various formats and converting them to 3D can be challenging. The choice of a format capable of streaming large amounts of spatial data in the VR scene is crucial. However, the challenge lies in ensuring the reusability of the presented scenes with different GIS data. Most applications (including the 3D scene models) are created for a single use case and do not allow for simple interchangeability of presented data. This article proposes...