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R&D Investments in the European ICT sector: Implications for Business Performance 欧洲ICT行业的研发投资:对企业绩效的影响
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-11-01 DOI: 10.2478/bsrj-2020-0025
J. Huňady, Peter Pisár, Ina Ďurčeková
Abstract Background A significant share of business innovation arises from information and communication (ICT) sector. Business investment into research and development (R&D) activities can be seen as an important basis for innovation, which can further lead to better economic performance. This can be especially true for the ICT sector. Objectives The paper examines the share of the ICT sector on innovation and the total R&D expenditure in selected European countries. Furthermore, our aim is to test the potential positive correlation between R&D expenditure, productivity and the value added in the sector. Methods/Approach The goals of the paper has been tested by empirical data analysis using the pane regression analysis. We examined panel data for 24 European countries in the 2008-2016 period. Results The highest share of business R&D expenditure in ICT has been captured in Nordic countries. Firms in ICT appear to be innovative above the average and represent a significant share in the total business R&D expenditure. Conclusions We found a positive correlation between R&D expenditure and both value-added and apparent labour productivity in the ICT sector. We believe that this could be to some extent attributed to the innovation of products and processes. Hence, the government support in the form of R&D tax incentives can be also beneficial for the economic performance of ICT firms.
商业创新的很大一部分来自信息通信(ICT)行业。企业对研究与开发(R&D)活动的投资可以被视为创新的重要基础,创新可以进一步带来更好的经济绩效。信息通信技术部门尤其如此。本文考察了选定的欧洲国家中信息通信技术部门在创新和总研发支出方面的份额。此外,我们的目的是检验研发支出、生产率和行业增加值之间潜在的正相关关系。方法/方法采用窗格回归分析的实证数据分析方法对本文的目标进行了检验。我们研究了2008-2016年期间24个欧洲国家的面板数据。结果北欧国家在信息通信技术方面的企业研发支出份额最高。信息通信技术公司的创新能力似乎高于平均水平,在企业研发支出总额中占很大份额。结论:ICT行业的研发支出与增加值和表观劳动生产率之间存在正相关关系。我们认为,这可能在一定程度上归因于产品和工艺的创新。因此,政府以研发税收激励形式的支持也有利于信息通信技术企业的经济绩效。
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引用次数: 7
Optimizing the Resource Consumption of Blockchain Technology in Business Systems 优化区块链技术在业务系统中的资源消耗
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-11-01 DOI: 10.2478/bsrj-2020-0028
Vedran Juricic, Matea Radosevic, E. Fuzul
Abstract Background Blockchain technology has gained a great public interest due to the appearance of cryptocurrencies, a digital asset used for exchanging funds. Although blockchain calculations offer the benefits of security and reduced costs, blockchain is still strongly criticised for its lack of usefulness and resource-heavy consumption. Objectives The aim of this research is to provide different insights into blockchain technology and to propose NP-complete problems as a suitable alternative to the current consensus algorithm. Methods/approach This research discusses the current state of proposed alternatives, projects such as distributed volunteering for scientific purposes and different consensus algorithms within cryptocurrencies but focusing on incorporating NP-complete problems as a secondary, more useful option. Results Using the properties of NP-complete problems, it is possible to solve various problems in different areas, such as science, biology, medicine and finance, but also to improve business processes, optimize markets, payments and supply chains while decreasing environmental costs. Conclusions This paper shows that the alternative mechanisms are being developed and used to substitute an existing Blockchain algorithm with a more efficient one. It also suggests further investigation in this area because the alternatives greatly improve blockchain’s usability and efficiency.
区块链技术由于加密货币(一种用于交换资金的数字资产)的出现而引起了公众的极大兴趣。尽管区块链计算提供了安全性和降低成本的好处,但区块链仍然因其缺乏实用性和资源消耗而受到强烈批评。本研究的目的是为区块链技术提供不同的见解,并提出np完全问题,作为当前共识算法的合适替代方案。本研究讨论了提出的替代方案的现状,例如用于科学目的的分布式志愿服务项目和加密货币中的不同共识算法,但重点是将np完全问题作为次要的,更有用的选择。结果利用np完全问题的性质,可以解决科学、生物、医学和金融等不同领域的各种问题,还可以改进业务流程,优化市场、支付和供应链,同时降低环境成本。本文表明,替代机制正在开发中,并用于用更有效的算法替代现有的区块链算法。它还建议在这一领域进行进一步的研究,因为替代方案大大提高了区块链的可用性和效率。
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引用次数: 11
Mobile Payment in the Connected Car: Developing Services Based on Process Thinking 车联网中的移动支付:基于流程思维的服务开发
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-11-01 DOI: 10.2478/bsrj-2020-0027
L. Petry, J. Moormann
Abstract Background The automotive world is on the threshold of a new era. Manufacturers are transforming themselves into suppliers of mobility services. Fundamentals for the transformation are customer processes combined with connectivity driven by the Internet of Things. Mobile payment serves as an enabler to most of these services. Objectives This paper demonstrates promising ways how payment-enabled services in the context of connected cars can be designed based on the process thinking approach. Methods/Approach In this paper, the methodology of use cases is applied as a means to develop services for the connected car through process thinking. The use case studied is validated afterwards with industry experts following a semi-structured interview format. Results The use case investigated in the course of the paper suggests that the core characteristics and challenges of these services are already predictable ex-ante by the theoretical framework on which the paper is built upon. In particular, the paper shows the steps needed for a driver’s request for on-demand horsepower for a certain time span along with mobile payment for this service. Conclusions It is concluded that the connectivity paradigm supplemented by mobile payment options enables consistent implementation of customer centricity in terms of process thinking.
汽车世界正处于一个新时代的门槛上。制造商正在将自己转变为移动服务供应商。转型的基础是客户流程与物联网驱动的连接相结合。移动支付是大多数这些服务的推动者。本文展示了如何基于过程思维方法设计联网汽车背景下的付费服务。在本文中,用例的方法被应用为通过过程思维为联网汽车开发服务的一种手段。研究的用例随后由行业专家按照半结构化的面试形式进行验证。结果:本文研究的用例表明,这些服务的核心特征和挑战已经可以通过本文所基于的理论框架预先预测。特别是,这篇论文展示了司机在一定时间内要求按需马力所需的步骤,以及这项服务的移动支付。得出的结论是,在连接模式的补充下,移动支付选项能够在过程思维方面一致地实现以客户为中心。
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引用次数: 1
Standard Project Risk Analysis Approach 标准项目风险分析方法
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-10-01 DOI: 10.2478/bsrj-2020-0021
Tena Žužek, L. Rihar, T. Berlec, J. Kušar
Abstract Background: To stay competitive in a highly unpredictable market of today, companies must be able to manage project risks effectively. The basis for an effective risk management is a thorough risk analysis. Despite the availability of many different risk analysis approaches, companies can be reluctant to use them, since the models are usually complex and very time consuming. Objectives: The main objective is to present a simple, yet effective risk analysis approach that can also serve as a useful basis for resolving project risks. Methods/Approach: The proposed standard risk analysis approach is based on a standard risk model that deals with risk events and impacts separately and therefore allows for a separate planning of preventive and corrective measures. To classify risks and to represent them graphically, a risk map is used. Results: The use of the proposed approach is illustrated on a die-cast tool development project. The approach proved to be very simple to use and it served as a useful basis for resolving the identified risks. Conclusions: The main advantage of the proposed approach is its simplicity and clarity. It can also be used as a quick decision-making tool in a subsequent risk resolving process.
背景:为了在当今高度不可预测的市场中保持竞争力,企业必须能够有效地管理项目风险。全面的风险分析是有效风险管理的基础。尽管有许多不同的风险分析方法,但公司可能不愿意使用它们,因为这些模型通常很复杂,而且非常耗时。目标:主要目标是提出一种简单而有效的风险分析方法,这种方法也可以作为解决项目风险的有用基础。方法/途径:建议的标准风险分析方法基于标准风险模型,该模型分别处理风险事件和影响,因此允许单独规划预防和纠正措施。为了对风险进行分类并图形化地表示它们,使用了风险图。结果:在一个压铸工具开发项目中说明了所提出的方法的使用。事实证明,这种方法使用起来非常简单,它是解决已确定风险的有用基础。结论:该方法的主要优点是简单明了。它还可以在随后的风险解决过程中用作快速决策工具。
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引用次数: 1
Comparison of Two Network-Theory-Based Methods for detecting Functional Regions 两种基于网络理论的功能区检测方法的比较
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-10-01 DOI: 10.2478/bsrj-2020-0013
S. Drobne, Alberto Garre, E. Hontoria, Miha Konjar
Abstract Background: Functional regions are abstract, uniformly defined territorial units that form an important basis for many development strategies of a country or a region. Objectives: This study analyses the application of network theory to the detection of such regions. Methods/Approach: Functional regions are analysed using two methods based on the graph theory: the Walktrap algorithm and the chain approach. The quality of the two regionalization methods is analysed using the fuzzy set theory with the revised method. Slovenia was used as a case study. Results: The Walktrap algorithm generated eight functional regions; seven of them corresponded to those identified in previous studies. The only difference occurred in the northwestern mountainous part of Slovenia. The chain approach led to similar results, although it resulted in a huge functional urban region of the capital Ljubljana. Conclusions: The results show that the Walktrap algorithm calculates regions that are more closed, where more workers find work in the home region, than the chain approach.
背景:功能区是抽象的、统一定义的领土单位,是一个国家或地区许多发展战略的重要基础。目的:分析网络理论在此类区域检测中的应用。方法/途径:基于图论的两种方法对功能区进行分析:Walktrap算法和链法。利用模糊集理论和修正后的方法对两种区划方法的质量进行了分析。斯洛文尼亚被用作案例研究。结果:Walktrap算法生成了8个功能区;其中7个与之前的研究中发现的一致。唯一的区别出现在斯洛文尼亚西北部的山区。连锁方法也产生了类似的结果,尽管它导致了首都卢布尔雅那的一个巨大的功能性城市区域。结论:结果表明,Walktrap算法计算的区域更封闭,更多的工人在家乡地区找到工作,而不是链方法。
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引用次数: 2
Editorial for the special issue: “Novel Solutions and Novel Approaches in Operational Research” 特刊社论:“运筹学的新解决方案和新方法”
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-10-01 DOI: 10.2478/bsrj-2020-0011
S. Drobne, Ksenija Dumicic, L. Stirn
Abstract This special issue of Business Systems Research (SI of the BSR) is co-published by the Slovenian Society INFORMATIKA – Section for Operational Research (SSI-SOR) and highlights recent advances in Operations Research and Management Science (OR /MS), with a focus on linking OR /MS with other areas of quantitative and qualitative methods in a multidisciplinary framework. Eleven papers selected for this SI of the BSR present improvements and new techniques (methodology) in Operations Research (OR) and their application in various fields of economics, business, spatial science, smart mobility, higher education, human resources, environment, agriculture and social networks.
本特刊《商业系统研究》(BSR的SI)由斯洛文尼亚信息学会运筹学分会(SSI-SOR)联合出版,突出了运筹学和管理科学(OR /MS)的最新进展,重点是在多学科框架中将OR /MS与定量和定性方法的其他领域联系起来。11篇入选BSR SI的论文介绍了运筹学(OR)的改进和新技术(方法),以及它们在经济、商业、空间科学、智能移动、高等教育、人力资源、环境、农业和社会网络等各个领域的应用。
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引用次数: 1
Deep Learning Predictive Models for Terminal Call Rate Prediction during the Warranty Period 保修期终端话务率预测的深度学习预测模型
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-09-30 DOI: 10.2478/bsrj-2020-0014
Aljaz Ferencek, D. Kofjac, A. Škraba, Blaž Sašek, M. K. Borstnar
Abstract Background: This paper addresses the problem of products’ terminal call rate (TCR) prediction during the warranty period. TCR refers to the information on the amount of funds to be reserved for product repairs during the warranty period. So far, various methods have been used to address this problem, from discrete event simulation and time series, to machine learning predictive models. Objectives: In this paper, we address the above named problem by applying deep learning models to predict terminal call rate. Methods/Approach: We have developed a series of deep learning models on a data set obtained from a manufacturer of home appliances, and we have analysed their quality and performance. Results: Results showed that a deep neural network with 6 layers and a convolutional neural network gave the best results. Conclusions: This paper suggests that deep learning is an approach worth exploring further, however, with the disadvantage being that it requires large volumes of quality data.
摘要背景:本文研究了保修期产品终端回收率(TCR)预测问题。TCR是指在保修期内为产品维修预留的资金金额信息。到目前为止,已经使用了各种方法来解决这个问题,从离散事件模拟和时间序列到机器学习预测模型。目的:在本文中,我们通过应用深度学习模型来预测终端呼叫率来解决上述问题。方法/方法:我们开发了一系列深度学习模型,这些模型基于从一家家电制造商获得的数据集,我们分析了它们的质量和性能。结果:6层深度神经网络和卷积神经网络的效果最好。结论:本文表明,深度学习是一种值得进一步探索的方法,然而,缺点是它需要大量的高质量数据。
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引用次数: 4
Selection of Project Managers: An Overview 项目经理的选择:概述
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-09-30 DOI: 10.2478/bsrj-2020-0018
M. Kuliš
Abstract Background: The project manager choice is one of the most important, complicated and multi-layered decisions in project management. Although the competence of a project manager is the subject of numerous studies, mostly in the field of economic sciences, there are still relatively few studies dealing with project manager selection. Objectives: The aim of this paper is to provide a useful overview of research on approaches, models, techniques, and competencies during the process of selecting project managers, in order to improve understanding an effective process of selecting project managers from academic researchers and practitioners’ point of view. Methods/Approach: This article is a scientific review of previously published studies that are linked to competencies of a project manager and the process of project manager selection according to the traditional and the modern approach. Results: The process of selecting project managers is not sufficiently investigated in Croatia, while most of the research is focused to traditional approach. Conclusions: In this work, we propose a combination of the traditional and the modern approach to the selection of project managers, which would be based on the multicriteria decision making.
摘要背景:项目经理的选择是项目管理中最重要、最复杂、最多层次的决策之一。尽管项目经理的能力是众多研究的主题,主要是在经济科学领域,但涉及项目经理选择的研究仍然相对较少。目的:本文的目的是对选择项目经理过程中的方法、模型、技术和能力的研究提供一个有用的概述,以便从学术研究人员和从业者的角度提高对选择项目经理的有效过程的理解。方法/途径:本文是对先前发表的研究的科学回顾,这些研究与项目经理的能力以及根据传统和现代方法选择项目经理的过程有关。结果:在克罗地亚,选择项目经理的过程没有得到充分的调查,而大多数研究都集中在传统方法上。结论:在这项工作中,我们提出了一种结合传统和现代的方法来选择项目经理,这将基于多标准决策。
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引用次数: 1
Portfolio Optimization Efficiency Test Considering Data Snooping Bias 考虑数据窥探偏差的投资组合优化效率检验
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-09-30 DOI: 10.2478/bsrj-2020-0016
A. Kresta, A. Wang
Abstract Background: In the portfolio optimization area, most of the research is focused on insample portfolio optimization. One may ask a rational question of what the efficiency of the portfolio optimization strategy is and how to measure it. Objectives: The objective of the paper is to propose the approach to measuring the efficiency of the portfolio strategy based on the hypothesis inference methodology and considering a possible data snooping bias. The proposed approach is demonstrated on the Markowitz minimum variance model and the fuzzy probabilities minimum variance model. Methods/Approach: The proposed approach is based on a statistical test. The null hypothesis is that the analysed portfolio optimization strategy creates a portfolio randomly, while the alternative hypothesis is that an optimized portfolio is created in such a way that the risk of the portfolio is lowered. Results: It is found out that the analysed strategies indeed lower the risk of the portfolio during the market’s decline in the global financial crisis and in 94% of the time in the 2009-2019 period. Conclusions: The analysed strategies lower the risk of the portfolio in the out-of-sample period.
摘要背景:在投资组合优化领域,大多数研究都集中在样本投资组合优化方面。人们可能会问一个理性的问题,投资组合优化策略的效率是什么,以及如何衡量它。目的:本文的目的是提出一种基于假设推理方法并考虑可能的数据窥探偏差的投资组合策略效率度量方法。该方法在马科维茨最小方差模型和模糊概率最小方差模型上进行了验证。方法/方法:建议的方法是基于统计检验。零假设是分析的投资组合优化策略随机创建一个投资组合,而替代假设是优化的投资组合是以降低投资组合风险的方式创建的。结果发现,在全球金融危机期间市场下跌期间,所分析的策略确实降低了投资组合的风险,并在2009-2019年期间的94%的时间内降低了风险。结论:所分析的策略降低了投资组合在样本外期的风险。
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引用次数: 1
Pension Pessimism in the Young Generation: Basics or Instincts to Blame? 年轻一代的养老金悲观主义:是基础还是本能?
IF 1.5 Q2 Economics, Econometrics and Finance Pub Date : 2020-09-30 DOI: 10.2478/bsrj-2020-0019
E. Kovacs, Ágnes Vaskövi
Abstract Background: The area of pension expectations in Hungary is barely researched. However, the importance of adequate financial literacy and self-provision is becoming obvious at the economic, the decision-making, and the individual level. Objectives: Our research is conducted to investigate state pension expectations and certain aspects of financial literacy of the young generation, and to find a behavioral explanation for their pessimistic attitude. Methods/Approach: Using a 14-question questionnaire, we collected answers from Hungarian financially educated, young people. Two hypotheses were investigated by the Principal Component Analysis (PCA). Besides, a comparative analysis was conducted to connect the survey results with the ten instincts published by Hans Rosling in his book ‘Factfulness’. Results: The outcomes are in harmony with prior expectations, i.e. i) students in finance major are aware of the connection between a longer working period and a higher retirement income; and ii) despite the unisex pension scheme there are gender differences in the expected pension age. In the comparative analysis with ‘Factfulness’, we identified five instincts that lie behind the general pessimism of respondents. Conclusions: State pension expectations of the Hungarian young generation are overly pessimistic, the same attitude being found in international literature, as well. Pessimistic expectations can be explained using some of the ten instincts by Rosling.
背景:匈牙利对养老金预期的研究很少。然而,在经济、决策和个人层面上,充分的金融知识和自我供应的重要性正变得越来越明显。目的:我们的研究旨在调查年轻一代的国家养老金预期和金融素养的某些方面,并寻找其悲观态度的行为解释。方法/方法:使用14个问题的问卷,我们收集了匈牙利受过金融教育的年轻人的答案。主成分分析(PCA)研究了两个假设。并将调查结果与Hans Rosling在《Factfulness》一书中提出的十种本能进行了对比分析。结果:结果与先前的预期一致,即1)金融专业学生意识到工作时间较长与退休收入较高之间的联系;(2)尽管实行男女通用的养老金计划,但预期领取养老金的年龄存在性别差异。在与“事实”的比较分析中,我们确定了五种本能,隐藏在受访者普遍悲观的背后。结论:匈牙利年轻一代的国家养老金预期过于悲观,国际文献中也有同样的态度。悲观预期可以用罗斯林的十种本能中的一些来解释。
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引用次数: 1
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