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521.
Erdinc Akyildirim Duc Khuong Nguyen Ahmet Sensoy Mario Šikić 《European Financial Management》2023,29(1):22-75
Borsa Istanbul introduced data analytics to present additional information about its market conditions. We examine whether this product can be utilized via various machine learning methods to predict intraday excess returns. Accordingly, these analytics provide significant prediction ratios above 50% with ideal profit ratios that can reach up to 33%. Among all the methods considered, XGBoost (logistic regression) performs better in predicting excess returns in the long-term analysis (short-term analysis). Results provide evidence for the benefits of both the analytics and the machine learning methods and raise further discussion on the semistrong market efficiency. 相似文献
522.
In diaspora research, people's international mobility is often understood as a response to pull-push forces on an economic macro-level or as part of diasporic waves. However, labor diaspora formations are also influenced by micro-level (i.e., individual perceptions) drivers related to work per se, such as satisfaction. This explorative qualitative study takes a novel angle and focuses on the role of Portuguese nurses’ satisfaction with the evaluation of the Brexit scenario and its effects on this labor diaspora's mobility and stability. The findings illustrate that satisfaction, although affected by uncertainty, mainly relates to perceived working conditions and legislation and the possibilities to communicate with locals and other diasporans. This paper provides suggestions for future research and contributes to the development of theory on staying and human stickiness, explaining the dynamics of exit and entry in (re-)migration decision making. 相似文献
523.
Andrea Lučić Dajana Barbić Marija Uzelac 《International Journal of Consumer Studies》2023,47(1):373-399
This paper investigates the multidisciplinary theoretical context of financial capability and provides a critical examination of 14 relevant theoretical frameworks. To this end, the paper defines financial capability and develops a new theoretical framework of financial capability termed the personal financial management system. Financial capability is defined as the capacity of consumers to undertake comprehensive financial activities and thereby achieve personal financial well-being. The exploration of financial capability includes the concepts of financial literacy and psychological financial capability, where the latter represents automatic and controlled mental processes. Recent advances in behavioural science have profoundly changed the realm of personal finances, and it is, therefore, essential to acknowledge the importance of the intuitive reasoning that shapes our financial decision making. As part of the financial management system's throughput, together with individual motivation and opportunity within the personal financial management system, financial capability forms financial behaviour. The framework identifies three groups of relevant antecedents of financial capability including sociodemographic factors, cognitive and affective factors and personality and values. By constructing a comprehensive theoretical model, this paper contributes to the literature by providing greater consistency in the definitions of capability and its related terms, encouraging academic discussion and affirming the much-needed directions for future research. 相似文献
524.
Underreporting and undersampling biases in top tail wealth, although widely acknowledged, have not been statistically quantified so far, essentially because they are not readily observable. Here we exploit the functional form of power law-like regimes in top tail wealth to derive analytical expressions for these biases, and use German microdata from a popular survey and rich list to illustrate that tiny differences in non-response rates lead to tail wealth estimates that differ by an order of magnitude, in our case ranging from 1 to 9 trillion euros. Underreporting seriously compounds the problem, and we find that the estimation of totals in scale-free systems oftentimes tends to be spurious. Our findings also suggest that recent debates on the existence of scale- or type-dependence in returns to wealth are ill-posed because the available data cannot discriminate between scale- or type-dependence, on one hand, and statistical biases, on the other hand. Yet both economic theory and mathematical formalism indicate that sampling and reporting biases are more plausible explanations for the observed data than scale- or type-dependence. 相似文献
525.
Walter Wymer Ljiljana Najev Čačija 《International Journal of Nonprofit & Voluntary Sector Marketing》2023,28(4):e1782
There has been a growth in online fundraising from crowdfunding apps, like GoFundMe, that propagate fundraising appeals on social networking sites. In the online space, these crowdfunding apps pose a potential threat to the traditional intermediation role of charities. The disintermediation threat is that donors choose crowdfunding intermediaries instead of charities to channel their giving. In this article, we discuss what makes crowdsourced fundraising effective and how charities can adapt to this new dynamic for more effective online fundraising emphasizing two key success factors: brand strength/reputation and managing the donor experience. In addition, we explain the advantages and disadvantages of social media fundraising and giving and propose ways charities can leverage their good reputations and public trust to stimulate reintermediation. Finally, we propose a landscape for future research based on model that emphases the fundraising campaign's ability to stimulate viral sharing within and between online social networks. 相似文献
526.
Jean Canil Sigitas Karpavičius Chia-Feng Yu 《Journal of Business Finance & Accounting》2023,50(9-10):1743-1778
We examine how chief executive officer (CEO) mobility affects corporate payouts. We exploit US state courts’ staggered adoption of the inevitable disclosure doctrine (IDD) to obtain exogenous variation in mobility. We report several findings. First, we find that firms in IDD-adopting states increase dividend payouts, whereas the effect of IDD on share repurchases is insignificant relative to firms not in IDD-adopting states. Second, the increase in dividends is concentrated on firms run by CEOs having high ability. Third, CEOs increasing dividends are less likely to be forced to leave their jobs. Fourth, the increase in dividends is concentrated on firms run by early-career CEOs rather than retiring CEOs. Last, CEOs increasing dividends receive more favorable shareholders’ say on pay votes for higher pay. Our evidence supports the notion that restricted mobility induces CEOs to choose a dividend policy that enhances their positions with their shareholders. 相似文献
527.
Subprime lending is concentrated in minority neighborhoods. However, the literature provides little evidence for what led to this concentration. We use the endorsement of credit scores in mortgage underwriting by the Government Sponsored Enterprises (GSEs) in 1995 to answer this question. We show that prime lenders were substituted by subprime lenders in minority neighborhoods. As a result, the share of subprime lending increased by 5 percentage points in minority neighborhoods, relative to nonminority neighborhoods. Prime lenders with a stronger relationship with the GSEs reduced their lending in minority neighborhoods more, and the level of securitization by the GSEs in minority neighborhoods also decreased. 相似文献
528.
Environmental and Resource Economics - This paper examines differences in attitudes towards electricity fee plans when information is provided on electricity bills based on past electricity... 相似文献
529.
Miranda Constanza Goñi Julian Pickenpack Astrid Sotomayor Trinidad 《International Journal of Technology and Design Education》2022,32(3):1495-1513
International Journal of Technology and Design Education - K-12 Engineering Education has placed a lot of attention on students’ attitudes or predispositions towards science and technology.... 相似文献