Intelligent Systems in Accounting, Finance and Management最新文献

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Remarks on a copula-based conditional value at risk for the portfolio problem 关于投资组合问题的一个基于copula的条件风险值的注记
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-08-07 DOI: 10.1002/isaf.1540
Andres Mauricio Molina Barreto, Naoyuki Ishimura
{"title":"Remarks on a copula-based conditional value at risk for the portfolio problem","authors":"Andres Mauricio Molina Barreto,&nbsp;Naoyuki Ishimura","doi":"10.1002/isaf.1540","DOIUrl":"https://doi.org/10.1002/isaf.1540","url":null,"abstract":"<p>We deal with a multivariate conditional value at risk. Compared with the usual notion for the single random variable, a multivariate value at risk is concerned with several variables, and thus, the relation between each risk factor should be considered. We here introduce a new definition of copula-based conditional value at risk, which is real valued and ready to be computed. Copulas are known to provide a flexible method for handling a possible nonlinear structure; therefore, copulas may be naturally involved in the theory of value at risk. We derive a formula of our copula-based conditional value at risk in the case of Archimedean copulas, whose effectiveness is shown by examples. Numerical studies are also carried out with real data, which can be verified with analytical results.</p>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 3","pages":"150-170"},"PeriodicalIF":0.0,"publicationDate":"2023-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/isaf.1540","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50135736","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An efficient graph-based peer selection method for financial statements 一种高效的基于图的财务报表对等选择方法
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-07-05 DOI: 10.1002/isaf.1539
Sander Noels, Simon De Ridder, Sébastien Viaene, Tijl De Bie
{"title":"An efficient graph-based peer selection method for financial statements","authors":"Sander Noels,&nbsp;Simon De Ridder,&nbsp;Sébastien Viaene,&nbsp;Tijl De Bie","doi":"10.1002/isaf.1539","DOIUrl":"https://doi.org/10.1002/isaf.1539","url":null,"abstract":"<p>Comparing companies can be useful for various purposes. Despite the widespread use of industry classification systems as a peer selection standard, these have been criticized for various reasons. Financial statements, however, offer a promising alternative to such classification systems. They are standardized, widely available, and offer deep insights into the nature of the company. In this paper, we present a graph distance metric for financial statements using the earth mover's distance. When using the distance metric on real-world tasks such as peer identification and industry classification, it shows promising results in terms of accuracy and computational efficiency.</p>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 3","pages":"120-136"},"PeriodicalIF":0.0,"publicationDate":"2023-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/isaf.1539","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50132150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evaluating interpretable machine learning predictions for cryptocurrencies 评估加密货币的可解释机器学习预测
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-06-21 DOI: 10.1002/isaf.1538
Ahmad El Majzoub, Fethi A. Rabhi, Walayat Hussain
{"title":"Evaluating interpretable machine learning predictions for cryptocurrencies","authors":"Ahmad El Majzoub,&nbsp;Fethi A. Rabhi,&nbsp;Walayat Hussain","doi":"10.1002/isaf.1538","DOIUrl":"https://doi.org/10.1002/isaf.1538","url":null,"abstract":"<p>This study explores various machine learning and deep learning applications on financial data modelling, analysis and prediction processes. The main focus is to test the prediction accuracy of cryptocurrency hourly returns and to explore, analyse and showcase the various interpretability features of the ML models. The study considers the six most dominant cryptocurrencies in the market: Bitcoin, Ethereum, Binance Coin, Cardano, Ripple and Litecoin. The experimental settings explore the formation of the corresponding datasets from technical, fundamental and statistical analysis. The paper compares various existing and enhanced algorithms and explains their results, features and limitations. The algorithms include decision trees, random forests and ensemble methods, SVM, neural networks, single and multiple features N-BEATS, ARIMA and Google AutoML. From experimental results, we see that predicting cryptocurrency returns is possible. However, prediction algorithms may not generalise for different assets and markets over long periods. There is no clear winner that satisfies all requirements, and the main choice of algorithm will be tied to the user needs and provided resources.</p>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 3","pages":"137-149"},"PeriodicalIF":0.0,"publicationDate":"2023-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/isaf.1538","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50153077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Neural networks for estimating Macro Asset Pricing model in football clubs 足球俱乐部宏观资产定价模型的神经网络估计
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-05-31 DOI: 10.1002/isaf.1532
David Alaminos, Ignacio Esteban, M. Belén Salas
{"title":"Neural networks for estimating Macro Asset Pricing model in football clubs","authors":"David Alaminos,&nbsp;Ignacio Esteban,&nbsp;M. Belén Salas","doi":"10.1002/isaf.1532","DOIUrl":"https://doi.org/10.1002/isaf.1532","url":null,"abstract":"<p>The recent crisis caused by COVID-19 directly affected consumption habits and the stability sof financial markets. In particular, the football industry has been hit hard by this pandemic and therefore has more volatile stock prices. Given this new scenario, further research is needed to accurately estimate the value of the shares of football clubs. In this paper, we estimate an asset pricing model in football clubs with different compositions of risk nature using non-linear techniques of artificial neural networks. Usually, asset pricing models have been estimated with linear methods such as ordinary least squares. Our results show a precision higher than 90% for all the estimated models, which far exceeds those shown by linear methods in the previous literature. We find that the residual represents about 40% of the variance of the price-dividend ratio. Long-term risks follow in importance, and above all, the habit component and its behaviour in the face of changes. The importance of the residual component exists due to a low correlation between the asset price and consumer behaviour, but to a much lesser extent than that shown in previous studies. The estimation carried out with artificial neural networks, both the Deep Learning methods and especially the Quantum Neural Network, opens up new possibilities to estimate more efficiently the pricing of financial assets in the football industry.</p>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 2","pages":"57-75"},"PeriodicalIF":0.0,"publicationDate":"2023-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/isaf.1532","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50126628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Challenges of using RPA in auditing: A socio-technical systems approach 在审计中使用RPA的挑战:一种社会技术系统方法
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-05-25 DOI: 10.1002/isaf.1537
Laila Dahabiyeh, Omar Mowafi
{"title":"Challenges of using RPA in auditing: A socio-technical systems approach","authors":"Laila Dahabiyeh,&nbsp;Omar Mowafi","doi":"10.1002/isaf.1537","DOIUrl":"https://doi.org/10.1002/isaf.1537","url":null,"abstract":"<div>\u0000 \u0000 <p>The use of Robotic Process Automation (RPA) is rapidly growing in the professional services sector such as auditing. Despite the great benefits RPA can offer, RPA failure rates are still high. In this research, we draw on socio-technical systems theory to examine the challenges of using RPA in the various phases of auditing and how auditors address these challenges. By interviewing experienced partners and auditors in auditing firms and technology companies, we show that challenges arise when there is a lack of fit between the technical requirements of the RPA tool (technical subsystem) and the skills and knowledge of the auditors and clients (social subsystem). We discuss our findings and provide valuable practical implications and opportunities for future research.</p>\u0000 </div>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 2","pages":"76-86"},"PeriodicalIF":0.0,"publicationDate":"2023-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50144283","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
An analysis of three chatbots: BlenderBot, ChatGPT and LaMDA 三个聊天机器人的分析:BlenderBot、ChatGPT和LaMDA
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-03-30 DOI: 10.1002/isaf.1531
Daniel E. O'Leary
{"title":"An analysis of three chatbots: BlenderBot, ChatGPT and LaMDA","authors":"Daniel E. O'Leary","doi":"10.1002/isaf.1531","DOIUrl":"https://doi.org/10.1002/isaf.1531","url":null,"abstract":"<div>\u0000 \u0000 <p>Google, Facebook, OpenAI, and others have released access to versions of language chatbots that they have developed. These chatbots have been trained on massive amounts of text using neural networks for language processing. Using an approach similar to security penetration testing, this paper investigates and compares three different chatbots, assessing potential strengths and limitations of these systems. The paper presents several findings, including a comparison of those systems across answers to common questions, an analysis of the use of names and activities to guide discussion in two systems, an analysis of the extent of differences in responses arising from “regeneration” of a question, the determination of a weakness in a system of knowing “who” invented something, development of a potential new subfield, sensitive topic classifiers, and an analysis of some of the implications of these findings. As part of this analysis, I find emerging topics in chatbots, such as “topic stalemate” and the use of sensitive topic classifiers.</p>\u0000 </div>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 1","pages":"41-54"},"PeriodicalIF":0.0,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50148601","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: 8
Predicting base station return on investment in the telecommunications industry: Machine-learning approaches 预测基站在电信行业的投资回报率:机器学习方法
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-03-07 DOI: 10.1002/isaf.1530
Cihan Şahin
{"title":"Predicting base station return on investment in the telecommunications industry: Machine-learning approaches","authors":"Cihan Şahin","doi":"10.1002/isaf.1530","DOIUrl":"https://doi.org/10.1002/isaf.1530","url":null,"abstract":"<p>Investment in the right location ensures sustainable competition. In the telecommunication sector, the number of base stations (BSs) is one of the most significant investment parameters. When a potential BS is subject to be selected, practitioners will first consider investing in a BS where the return on investment (ROI) is highest. Therefore, the quantifiable objectives are distinctly defined, as it makes sense to choose maximizing features that raise per unit investment. This study provides a solution to evaluate the best BS installation alternative with machine-learning approaches as well as to estimate ROI value by changing the properties that affect the ROI value. For this purpose, the estimation performance of logistic regression, random forest, and XGBoost methods are compared and further strengthened by random forest hyperparameter optimization to provide the best performance. The model, with a success rate of 98.7% according to the \u0000<math>\u0000 <mi>F</mi></math>-score, showed that it was a robust algorithm. The three most essential features for the ROI value are determined to be voice traffic, data traffic, and frequency cost. These parameters enable a review of the prediction results of telecommunications managers and planning specialists responsible for BS investment.</p>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 1","pages":"29-40"},"PeriodicalIF":0.0,"publicationDate":"2023-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50124431","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
Using Google Trends to track the global interest in International Financial Reporting Standards: Evidence from big data 利用谷歌趋势追踪全球对《国际财务报告准则》的兴趣:来自大数据的证据
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-02-11 DOI: 10.1002/isaf.1529
Yuqian Zhang
{"title":"Using Google Trends to track the global interest in International Financial Reporting Standards: Evidence from big data","authors":"Yuqian Zhang","doi":"10.1002/isaf.1529","DOIUrl":"https://doi.org/10.1002/isaf.1529","url":null,"abstract":"<p>This study proposes a novel method for identifying international accounting differences under International Financial Reporting Standards (IFRS). Using Google Trends data extracted between January 2014 and August 2022, it creates an index, the Global IFRS/IAS Search Index (GISI), which comprises the search activities of 121 jurisdictions for 45 IFRS accounting standards. To assess its relative validity, I classify Nobes' (1983) 14 jurisdictions in addition to 20 OECD countries. The cluster analysis demonstrates that the GISI is a viable alternative for analyzing international differences under IFRS. The results indicate that incorporating big data could be beneficial for examining global accounting issues.</p><p>A judgmental international classification of financial reporting practices</p>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 2","pages":"87-100"},"PeriodicalIF":0.0,"publicationDate":"2023-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/isaf.1529","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50149023","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Hedging role of stablecoins 稳定币的套期保值作用
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-02-01 DOI: 10.1002/isaf.1528
Yosuke Kakinuma
{"title":"Hedging role of stablecoins","authors":"Yosuke Kakinuma","doi":"10.1002/isaf.1528","DOIUrl":"https://doi.org/10.1002/isaf.1528","url":null,"abstract":"<div>\u0000 \u0000 <p>Wild price fluctuations of cryptocurrencies make it difficult for investors to maintain stable asset values. This study investigates the hedging properties of US dollar (USD)-pegged stablecoins against bitcoin returns. We analyzed the hedging abilities of the three largest stablecoins—namely, Tether, USD Coin, and Binance USD—using the dynamic conditional correlation–generalized autoregressive conditional heteroskedasticity, dummy variable regression, vector autoregression, and impulse response functions. We found that stablecoins are generally negatively correlated with bitcoin returns, indicating that they can be effective hedging instruments against high-volatility crypto assets. Among the stablecoins, Binance USD offers the largest risk reduction, and Tether was a weak safe haven during the COVID-19 crisis period. Crypto investors can diversify their portfolios by holding stablecoins.</p>\u0000 </div>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 1","pages":"19-28"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50127357","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: 1
How the quality of initial coin offering white papers influences fundraising: Using security token offerings white papers as a benchmark 首次代币发行白皮书的质量如何影响筹款:以安全代币发行白皮书为基准
Intelligent Systems in Accounting, Finance and Management Pub Date : 2023-01-04 DOI: 10.1002/isaf.1527
Shih-Chu Chou, Zhe-An Li, Tawei Wang, Ju-Chun Yen
{"title":"How the quality of initial coin offering white papers influences fundraising: Using security token offerings white papers as a benchmark","authors":"Shih-Chu Chou,&nbsp;Zhe-An Li,&nbsp;Tawei Wang,&nbsp;Ju-Chun Yen","doi":"10.1002/isaf.1527","DOIUrl":"https://doi.org/10.1002/isaf.1527","url":null,"abstract":"<div>\u0000 \u0000 <p>In recent years, many initial coin offerings (ICOs) scams have been reported, attracting attention to this relatively new and unregulated ICO market, which lacks disclosure requirements and therefore suffers from intensifying problems of information asymmetry inherent in crowdfunding. As a prospectus-type document, an ICO white paper serves as a major means of voluntary disclosure practices adopted by ventures seeking external financing. Given the importance of an ICO white paper and the difficulty of assessing its quality, we propose to benchmark it against white paper content for security token offerings (STOs)—a more regulated ICO subset. Using the similarity of ICO white papers with STO white papers to proxy for disclosure quality, we document that the ICO campaigns that have white papers more similar to STO white papers are more likely to raise funding successfully. Our findings provide implications for policymakers, ICO fundraisers, and investors on the importance of white paper quality.</p>\u0000 </div>","PeriodicalId":53473,"journal":{"name":"Intelligent Systems in Accounting, Finance and Management","volume":"30 1","pages":"3-18"},"PeriodicalIF":0.0,"publicationDate":"2023-01-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50120081","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
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