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MICRO-ECONOMIC FACTORS OF TOURIST EXPENDITURE: THE ROLE OF ACCESSIBILITY IN THE CITY OF PORTO 旅游消费的微观经济因素:可达性在波尔图市的作用
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.1041
Elvira Pacheco Vieira, Ana Pinto Borges, Ana Maria Reis
In this paper, we assess the determinants of the main tourist expenses in a city (accommodation, meals, culture/leisure and global) considering the socio-demographic profile of the tourist, the length of stay, and satisfaction with visiting the city. Additionally, the main novelty of this study is the evaluation of the destination’s accessibility concerning people with special needs as a determinant of tourist expenses. Microdata was collected by a survey addressed to tourists (national and international) who visited the city of Porto. Tobit regressions were applied to explain the main tourist expenses. The results show the perception of the level of accessibility presents a relevant result in the various models. With this paper, we intend to contribute to the literature and support the different stakeholders in defining tourist attraction and loyalty strategies.
在本文中,我们评估了一个城市的主要旅游费用(住宿,餐饮,文化/休闲和全球)的决定因素,考虑到游客的社会人口特征,停留时间和访问城市的满意度。此外,本研究的主要新颖之处在于将目的地的可达性作为旅游消费的决定因素来评价特殊需求人群。微数据是通过对访问波尔图市的游客(国内和国际)进行调查收集的。采用Tobit回归解释主要旅游消费。结果表明,可达性水平的感知在不同的模型中呈现出相关的结果。通过本文,我们打算为文献做出贡献,并支持不同利益相关者制定旅游吸引力和忠诚度策略。
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引用次数: 0
EMIGRATION STATISTICS – THE HERALD OF THE SURVIVAL OF THE POPULATION OF GEORGIA OR THE DEMOGRAPHIC CRISIS 移民统计-格鲁吉亚人口生存或人口危机的先兆
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.945
N. Abesadze, Otar Abesadze, R. Kinkladze, Nino Paresashvili
Mass emigration from Georgia began after the collapse of the Soviet Union. 30 years have passed since then but emigration in the country is still an actual problem. The purpose of the research is to reveal the statistical trends of emigration in Georgia, against the background of comparative analysis of emigration and remittances. In the research process statistical methods: observation, grouping and analysis were used. Results. In 2020, the number of Georgian emigrants abroad amounted to 74,264 people. The largest part of Georgian emigrants is in Russia, Greece, Ukraine, India, Azerbaijan and Armenia. The age of most immigrants is between 20–35 years. The largest number of immigrants is recorded in the Imereti region; Along with the increase in emigration, the number of remittances received from abroad also increases, the demographic situation is worsening, and unemployment rates are high.
苏联解体后,格鲁吉亚开始大规模移民,30年过去了,但移民问题仍然存在。这项研究的目的是在对移民和汇款进行比较分析的背景下,揭示格鲁吉亚移民的统计趋势。在研究过程中采用了统计学方法:观察、分组和分析。结果。2020年,格鲁吉亚移民海外的人数达到74,264人。格鲁吉亚移民的最大部分在俄罗斯、希腊、乌克兰、印度、阿塞拜疆和亚美尼亚。大多数移民的年龄在20-35岁之间。伊梅雷蒂地区的移民人数最多;随着移民的增加,从国外收到的汇款也在增加,人口状况正在恶化,失业率很高。
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引用次数: 0
THE BEHAVIOUR OF CHINESE GOVERNMENT BOND YIELD CURVE BEFORE AND DURING THE COVID-19 PANDEMIC COVID-19大流行前和期间中国国债收益率曲线的行为
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.1008
Alexander Petrov Ganchev
The aim of the study is to investigate the behaviour of the Chinese government bond yield curve before and during the COVID-19 pandemic. Its methodology comprises the techniques of time series analysis, correlation analysis and dimensionality reduction. The main empirical results show that in the pandemic period, the behaviour of the Chinese government bond yield curve differs significantly from that before the outbreak of COVID-19. This is evidenced by the weaker correlations among the analysed yields, the presence of anomalies, heterogeneous behaviour and probable arbitrage opportunities at the long-term end of the studied yield curve, as well as the significant changes in the main factors of its dynamics. The research also reveals that prior to the COVID-19 pandemic, portfolios composed of Chinese government bonds could be well protected against interest rate risk even by using traditional parallel shift immunization techniques. However, after the outbreak of the COVID-19 pandemic the use of such techniques would be relatively effective for portfolios of Chinese government bonds with maturities between 1 and 5 years, while portfolios that include Chinese government bonds with maturities greater than 7 years should be either hedged against all the three factors of the yield curve dynamics or be used only for arbitrage strategies.
本研究的目的是调查中国政府债券收益率曲线在COVID-19大流行之前和期间的行为。其方法包括时间序列分析、相关分析和降维技术。主要实证结果表明,疫情期间中国国债收益率曲线的走势与疫情前有显著差异。所分析的收益率之间的相关性较弱,在所研究的收益率曲线的长期末端存在异常,异质行为和可能的套利机会,以及其动态的主要因素的重大变化,都证明了这一点。研究还表明,在新冠肺炎大流行之前,即使使用传统的平行转移免疫技术,由中国政府债券组成的投资组合也可以很好地保护利率风险。然而,在新冠肺炎疫情爆发后,这种技术的使用对于期限在1至5年之间的中国政府债券的投资组合相对有效,而包括期限大于7年的中国政府债券的投资组合应该针对收益率曲线动态的所有三个因素进行对冲,或者仅用于套利策略。
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引用次数: 0
GOVERNMENT RESPONSE STRINGENCY INDEX: AN ALTERNATIVE FOR THE VOLATILITY DETERMINING DURING PANDEMICS 政府应对严格程度指数:大流行期间波动性确定的替代方法
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.972
O. Panazan, Cătălin Gheorghe
The spread of the Covid-19 virus on all continents has caused a rapid evolution of the volatility of stock indices. To prevent and counteract the effects of this global event, researchers have tried to identify the causes, amplitude, and persistence of volatility. To measure volatility using statistical models, most authors chose the number of illnesses or deaths caused by the Covid-19 virus. However, the method of recording and reporting the number of illnesses and deaths by each state, assumed certain shortcomings reported in the literature. As an alternative, Hale et al. (2021, p. 8) proposed the Government Response Stringency Index (SI). The research proposes the determination of volatility with GARCH and VAR methods using the SI index as a variable. For this purpose, 28 countries from all continents were considered. The analysis period was March 19, 2020 to December 31, 2021. The main findings are: 1) the determination of volatility for 28 analysed countries; 2) some countries show better adaptability to the pandemic; 3) the differences between the volatility calculated with the SI index and the number of illnesses or deaths are small; 4) the links between the markets are stronger in the postcrisis period. Based on these results, comparative analyzes can be carried out between states, geographical areas and continents. Furthermore, the results allow us to appreciate other major events that affected the world capital market.
Covid-19病毒在各大洲的传播导致股票指数的波动迅速演变。为了防止和抵消这一全球事件的影响,研究人员试图确定波动的原因、幅度和持续时间。为了使用统计模型衡量波动性,大多数作者选择了由Covid-19病毒引起的疾病或死亡人数。然而,记录和报告各州患病和死亡人数的方法存在文献中报告的某些缺陷。作为替代方案,Hale等人(2021,p. 8)提出了政府响应严格指数(SI)。本文提出以SI指数为变量,采用GARCH和VAR方法确定波动率。为此目的,审议了来自各大洲的28个国家。分析期为2020年3月19日至2021年12月31日。主要发现有:1)28个分析国家的波动率的确定;2)一些国家对疫情的适应能力较好;3) SI指数计算的波动率与患病或死亡人数的差异较小;4)后危机时期,市场之间的联系更为紧密。基于这些结果,可以在国家、地理区域和大陆之间进行比较分析。此外,这些结果使我们能够了解影响世界资本市场的其他重大事件。
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引用次数: 0
WHICH FACTORS CAN EXPLAIN THE CORRELATION BETWEEN CRYPTOMINING ACTIVITIES AND ENVIRONMENTAL IMPACT? A THEORETICAL ANALYSIS 哪些因素可以解释加密采矿活动与环境影响之间的相关性?理论分析
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.1049
Giuseppe Basile, Angelo Porcaro, P. Pazienza, Caterina De Lucia
In 2021, a massive relocation of cryptocurrency mining farms from China to Kazakhstan caused one of the largest energy crises in Asia and Europe. This work aims at an understanding of the current debate of cryptocurrency mining activities on the environment. The review highlights: 1. The existence of a positive relationship between cryptomining activities and the deterioration of environmental quality; 2. The contribution of renewable energies and blockchain algorithms to mitigate the above effects. Main results suggest the need for a supranational institution to monitor the current cryptocurrency production to complement current policies by the European Commission and United Nations.
2021年,加密货币矿场从中国大规模迁移到哈萨克斯坦,引发了亚洲和欧洲最大的能源危机之一。这项工作旨在了解当前关于加密货币挖矿活动对环境的争论。回顾重点:1。挖矿活动与环境质量恶化之间存在正相关关系;2. 可再生能源和区块链算法对减轻上述影响的贡献。主要结果表明,需要一个超国家机构来监测当前的加密货币生产,以补充欧盟委员会和联合国的现行政策。
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引用次数: 0
THE IMPACT OF THE COVID-19 PANDEMIC ON LABOUR PRODUCTIVITY IN EUROPEAN UNION 2019冠状病毒病大流行对欧盟劳动生产率的影响
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.1053
Vusala Gubatova
The purpose of this article is to determine the impact of Covid-19 on aggregate labour productivity and labour productivity in different economic activity fields in European Union and to investigate the reasons of changes in labour productivity per employee in the macroeconomic level. In the article, firstly labour productivity per employee (GDP divided by the number of employed persons) in EU for the years 2013–2021 has been provided, then the results of the pandemic period have been compared with the results of the previous years. Both GDP and the number of employed persons have been decreased in 2020 compared to 2019. However, the decrease in GDP was higher than the decrease in number of employees which also means a drop in labour productivity per employee. Regarding the impact of the pandemic on labour productivity in various economic activity fields in EU, percentage changes of real labour productivity per employee in different industries in 2020 compared to 2019 show that there are substantial differences in changes which could mainly (but not only) explained by government restrictions causing business closures or working from home in some industries. For this reason, the relationship between real labour productivity per person and working from home in selected economic activity fields fitting best to the purpose and method of our analysis has been investigated and correlation coefficient has been calculated. The results confirm that working from home affected labour productivity in different economic activity fields during the pandemic.
本文的目的是确定Covid-19对欧盟不同经济活动领域的总劳动生产率和劳动生产率的影响,并从宏观经济层面调查人均劳动生产率变化的原因。在这篇文章中,首先提供了2013-2021年欧盟每个雇员的劳动生产率(国内生产总值除以就业人数),然后将大流行期间的结果与前几年的结果进行了比较。与2019年相比,2020年国内生产总值和就业人数均有所下降。然而,国内生产总值的下降高于雇员人数的下降,这也意味着每个雇员的劳动生产率下降。关于疫情对欧盟各经济活动领域劳动生产率的影响,与2019年相比,2020年不同行业人均实际劳动生产率的百分比变化表明,变化存在重大差异,这主要(但不仅)可以解释为政府限制导致某些行业的企业关闭或在家工作。因此,在选定的最符合我们分析目的和方法的经济活动领域中,研究了人均实际劳动生产率与在家工作之间的关系,并计算了相关系数。结果证实,在大流行期间,在家工作影响了不同经济活动领域的劳动生产率。
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引用次数: 0
FACTORS INFLUENCING FRAUDULENT TRANSACTIONS FROM BIG DATA PERSPECTIVE 大数据视角下影响欺诈交易的因素
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.999
F. Levon, Nijolė Maknickienė
This article focuses on fraudulent behaviour and patterns as well as ways of detecting such patterns by using Big Data. The study analyses scientific articles to examine types of financial fraud and their detection techniques as well as develops a model that is based on factors characterizing fraudulent credit card transactions made across USA. Regression analysis, correlation and descriptive statistics analysis is applied. Statistically significant results are found indicating a causal relationship between fraudulent transactions and transactions made in Alaska, during the month of October and on a Thursday. Although, the impact of these relationships is relatively small. Expanding the dataset with more numerical variables that could be used for identifying fraudulent transactions is advised for future research as to better the overall fit of the model.
本文主要关注欺诈行为和模式,以及使用大数据检测此类模式的方法。该研究分析了科学文章,以检验金融欺诈的类型及其检测技术,并基于美国各地欺诈性信用卡交易的特征因素开发了一个模型。运用了回归分析、相关分析和描述性统计分析。统计上显著的结果表明,欺诈性交易与10月份和周四在阿拉斯加进行的交易之间存在因果关系。虽然,这些关系的影响相对较小。建议在未来的研究中使用更多可用于识别欺诈性交易的数值变量来扩展数据集,以更好地适应模型的整体拟合。
{"title":"FACTORS INFLUENCING FRAUDULENT TRANSACTIONS FROM BIG DATA PERSPECTIVE","authors":"F. Levon, Nijolė Maknickienė","doi":"10.3846/bm.2023.999","DOIUrl":"https://doi.org/10.3846/bm.2023.999","url":null,"abstract":"This article focuses on fraudulent behaviour and patterns as well as ways of detecting such patterns by using Big Data. The study analyses scientific articles to examine types of financial fraud and their detection techniques as well as develops a model that is based on factors characterizing fraudulent credit card transactions made across USA. Regression analysis, correlation and descriptive statistics analysis is applied. Statistically significant results are found indicating a causal relationship between fraudulent transactions and transactions made in Alaska, during the month of October and on a Thursday. Although, the impact of these relationships is relatively small. Expanding the dataset with more numerical variables that could be used for identifying fraudulent transactions is advised for future research as to better the overall fit of the model.","PeriodicalId":346157,"journal":{"name":"International Scientific Conference „Business and Management“","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-05-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122256056","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}
引用次数: 0
TOWARDS A COMMON UNDERSTANDING OF URBAN SUSTAINABILITY 实现对城市可持续性的共同理解
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.962
Regina Veckalne, T. Tambovceva
Although the term “urban sustainability” has gained worldwide popularity in the past few decades, there is still no common understanding of its definition. The purpose of this paper is to provide a comprehensive analysis of the “urban” and “urban sustainability” terms by synthesizing the existing definitions and proposing a new term through a review of relevant literature, research and definition. In this study, the authors discuss numerous facets of urban sustainability, including environmental preservation, social equality, and economic growth. A comprehensive bibliometric analysis and systematic literature review are conducted to identify the meaning of the terms. It is concluded that urban sustainability can be defined as a state in which major subsystems of a city (economical, social, physical, and environmental) work in harmony to ensure the long-term well-being of its inhabitants and the preservation of natural resources on which the city’s growth and prosperity rely.
虽然在过去的几十年里,“城市可持续性”一词在世界范围内得到了普及,但对其定义仍然没有共同的理解。本文的目的是通过对相关文献、研究和定义的回顾,综合现有的定义,并提出一个新的术语,对“城市”和“城市可持续性”这两个术语进行全面的分析。在这项研究中,作者讨论了城市可持续性的许多方面,包括环境保护、社会平等和经济增长。我们进行了全面的文献计量分析和系统的文献回顾,以确定这些术语的含义。城市可持续性可以定义为城市的主要子系统(经济、社会、物理和环境)和谐工作,以确保其居民的长期福祉和保护城市发展和繁荣所依赖的自然资源的状态。
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引用次数: 0
MODELING GREEN ORGANIZATIONAL CAPITAL AND ENVIRONMENTAL PERFORMANCE: MEDIATING AND MODERATING THE ROLE OF GREEN KNOWLEDGE SHARING AND GHRM PRACTICES 绿色组织资本与环境绩效建模:绿色知识共享与GHRM实践的中介与调节作用
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.975
Nosheen Qadeer
In this era of global warming, there is a great deal of pressure on businesses to decrease industrial waste to manage a sustainable environment. Therefore, the purpose of this research is to investigate these problems by introducing green organizational capital in manufacturing firms to improve environmental performance. This research is quantitative in nature and data were collected from small and medium-sized firms in Pakistan. Various directors and managers from SMEs are respondents to this study. For this study, the sample size is 190 from the manufacturing sectors. For testing the hypotheses while using SPSS version 25. Hence direct results supported the literature but GHRM as a moderator did not support it in developing countries. This report includes regulators and managers with advice for paying attention to the environment’s performance. As a result, the results supported both direct and indirect assumptions, with varied theoretical and managerial implications for management and policymakers in ensuring environmental performance contributing variables.
在这个全球变暖的时代,企业面临着减少工业废物以管理可持续环境的巨大压力。因此,本研究的目的是通过引入绿色组织资本来改善制造企业的环境绩效来探讨这些问题。本研究本质上是定量的,数据是从巴基斯坦的中小型公司收集的。来自中小企业的各种董事和经理是本研究的受访者。本研究的样本量为190,来自制造业。用于测试假设,而使用SPSS版本25。因此,直接结果支持文献,但GHRM作为调节因素在发展中国家不支持它。这份报告包括监管机构和管理人员的建议,以关注环境的表现。因此,结果支持直接和间接假设,对管理和决策者在确保环境绩效贡献变量方面具有不同的理论和管理意义。
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引用次数: 0
DETERMINANTS OF R&D EXPENDITURE: AN EMPIRICAL EVIDENCE OF BULGARIA 研发支出的决定因素:保加利亚的经验证据
Pub Date : 2023-05-11 DOI: 10.3846/bm.2023.957
Milena Kirilova Filipova, Daniela Stefanova Tancheva
Small and medium-sized enterprises (SMEs) place importance on the development of the global economy. Over 90% of the enterprises in the territory of the EU and in Bulgaria are of the SMEs type. The activity of SMEs is essential for the development of the economy of each country. The report aims to analyze the relationship between innovation expenditures of small and medium-sized enterprises (R&D_EXP_SMEs), real economic growth (R_GDP), index of economic freedom (IND_ECO_FRI) and corruption perceptions index (COR_PER_IND) for economy of Bulgaria. Annual data for the period 2000–2020 with 21 observations included were used. An econometric method Ordinary Least Squares (OLS) was applied. The results of the empirical research show that the positive coefficient of the corruption index, index of economic freedom and real economic growth leads to an increase in the expenditure for R&D of SMEs in Bulgaria. It can be concluded that the corruption perceptions index, index of economic freedom and real economic growth has an important role for the increase of the R&D expenditure of SMEs in Bulgaria. If the government wants to stimulate R&D expenditure of SMEs, it should implement policies to increase economic growth and decrease of the corruption in Bulgaria.
中小企业在全球经济发展中占有重要地位。欧盟和保加利亚境内90%以上的企业属于中小企业类型。中小企业的活动对每个国家的经济发展至关重要。该报告旨在分析保加利亚中小企业(R&D_EXP_SMEs)的创新支出与实际经济增长(R_GDP)、经济自由指数(IND_ECO_FRI)和腐败感知指数(COR_PER_IND)之间的关系。使用了2000-2020年期间的年度数据,其中包括21个观测值。采用普通最小二乘(OLS)计量经济学方法。实证研究结果表明,腐败指数、经济自由指数和实体经济增长的正系数导致保加利亚中小企业的研发支出增加。可以得出结论,保加利亚中小企业的腐败感知指数、经济自由度指数和实体经济增长对其研发支出的增加具有重要作用。如果政府想要刺激中小企业的研发支出,就应该实施促进保加利亚经济增长和减少腐败的政策。
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引用次数: 0
期刊
International Scientific Conference „Business and Management“
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