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Investigating the Evolution of Human Resource Management in Enterprises in the Era of Big Data
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作者 Chunsun He 《Proceedings of Business and Economic Studies》 2023年第5期26-30,共5页
Human resource(HR)management plays a crucial role in the overall management of enterprises,exerting a significant influence on their growth and development.With China now firmly entrenched in the era of big data,the c... Human resource(HR)management plays a crucial role in the overall management of enterprises,exerting a significant influence on their growth and development.With China now firmly entrenched in the era of big data,the conventional HR management approach is no longer adequate to meet the evolving demands of enterprise progress.Therefore,there is a pressing need to actively revamp the management strategies to improve the quality.This article outlines the importance of reforming enterprise HR management in the context of big data,scrutinizes the prevailing challenges in this domain,explores strategies for transforming HR management within enterprises in the era of big data,and provides illustrative examples to summarize valuable managerial insights,thereby offer enterprise leaders a valuable source of reference information. 展开更多
关键词 Big data Business management Human resource
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Stock Price Prediction Based on the Bi-GRU-Attention Model
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作者 Yaojun Zhang Gilbert M. Tumibay 《Journal of Computer and Communications》 2024年第4期72-85,共14页
The stock market, as one of the hotspots in the financial field, forms a data system with a huge volume of data and complex relationships between various factors, making stock price prediction an area of keen interest... The stock market, as one of the hotspots in the financial field, forms a data system with a huge volume of data and complex relationships between various factors, making stock price prediction an area of keen interest for further in-depth mining and research. Mathematical statistics methods struggle to deal with nonlinear relationships in practical applications, making it difficult to explore deep information about stocks. Meanwhile, machine learning methods, particularly neural network models and composite models, which have achieved outstanding results in other fields, are being applied to the stock market with significant results. However, researchers have found that these methods do not grasp the essential information of the data as well as expected. In response to these issues, researchers are exploring better neural network models and combining them with other methods to analyze stock data. Thus, this paper proposes the ABiGRU composite model, which combines the attention mechanism and bidirectional gated recurrent unit (GRU) that can effectively extract data features for stock price prediction research. Models such as LSTM, GRU, and Bi-LSTM are selected for comparative experiments. To ensure the credibility and representativeness of the research data, daily stock price indices of BYD are chosen for closing price prediction studies across different models. The results show that the ABiGRU model has a lower prediction error and better fitting effect on three index-based stock prices, enhancing the learning efficiency of the neural network model and demonstrating good prediction stability. This suggests that the ABiGRU model is highly adaptable for stock price prediction. 展开更多
关键词 Machine Learning Attention Mechanism LSTM Neural Network ABiGRU Model Stock Price Prediction
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The Impact of Outsourcing on Local Industry Upgrading: a Case of China from a Global Value Chain Perspective 被引量:2
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作者 赵君丽 LI Laubie 《Journal of Donghua University(English Edition)》 EI CAS 2011年第3期261-266,共6页
This paper develops a conceptual model to assess effect of outsourcing by integrating the theories of industrial upgrading and global value chain (GVC) governance. Contrary to the widely accepted perception that outso... This paper develops a conceptual model to assess effect of outsourcing by integrating the theories of industrial upgrading and global value chain (GVC) governance. Contrary to the widely accepted perception that outsourcing is expected to generate positive spillover in particular, the findings indicate that outsourcing has different effects in different GVC governance modes. Excess outsourcing could structurally inhibit technology and management spillovers to subcontractors within the emerging economy context. Based on a case study of the Chinese textile and apparel (T & A) industry, it is found that the Chinese T & A industry has been trapped in the captive governance relationship with foreign buyers, and at the same time is capped below the function upgrading level. Consequences of the situation and implication are then discussed. 展开更多
关键词 采购 溢出 全球价值链统治 中国纺织品和衣服工业 工业升级
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基于三阶段集成学习的信用卡欺诈检测研究
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作者 阮素梅 孙旭升 甘中新 《运筹与管理》 CSCD 北大核心 2023年第12期118-123,共6页
信用卡欺诈是银行业面临的严峻问题,全球每年因信用卡欺诈造成的损失高达数十亿美元。然而信用卡交易数据存在特征冗余和样本不平衡的问题,这无疑增加了模型对少数欺诈交易的检测难度。针对以上问题,本文提出了三阶段集成学习模型“FS-I... 信用卡欺诈是银行业面临的严峻问题,全球每年因信用卡欺诈造成的损失高达数十亿美元。然而信用卡交易数据存在特征冗余和样本不平衡的问题,这无疑增加了模型对少数欺诈交易的检测难度。针对以上问题,本文提出了三阶段集成学习模型“FS-IFKK-Stacking”:基于FS方法的特征选择、基于IFKK方法的不平衡数据处理和基于Stacking方法的异构模型集成。该模型同时解决了由于特征冗余和样本不均衡性导致的过拟合问题,能够更加准确地检测信用卡欺诈交易。基于Kaggle欧洲信用卡交易数据的实验表明:本文提出的“FS-IFKK-Stacking”模型对信用卡欺诈的检测效果明显优于基于原始样本训练的单类模型:在AUC提升0.44%的同时,对欺诈交易的召回率提升了3.27%。 展开更多
关键词 信用卡欺诈检测 集成学习 特征工程
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政策不确定性与企业风险承担:机遇预期效应还是损失规避效应 被引量:197
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作者 刘志远 王存峰 +1 位作者 彭涛 郭瑾 《南开管理评论》 CSSCI 北大核心 2017年第6期15-27,共13页
风险承担是经济政策不确定性影响企业行为的一条潜在渠道。基于1995-2014年中国A股上市公司数据,本文实证检验了经济政策不确定性对企业风险承担的影响。研究发现,经济政策不确定性显著提升了企业的风险承担;然而,该影响仅存在于非国有... 风险承担是经济政策不确定性影响企业行为的一条潜在渠道。基于1995-2014年中国A股上市公司数据,本文实证检验了经济政策不确定性对企业风险承担的影响。研究发现,经济政策不确定性显著提升了企业的风险承担;然而,该影响仅存在于非国有企业,但在国有企业中并不显著;同时,股权集中度显著削弱了经济政策不确定对企业风险承担的正向影响。进一步检验发现,股权集中度的负向调节作用在国有企业与非国有企业中均存在;特别是国有企业,在控制了股权集中因素之后,经济政策不确定性的影响也显著为正。上述结果表明,经济政策不确定性的"机遇预期效应"已在中国企业中发挥主导作用,而"风险承担代理问题"抑制经济政策不确定性的"机遇预期效应"。 展开更多
关键词 经济政策不确定性 企业风险承担 风险承担代理问题 股权结构
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Balance the Paradox between Limited Health Resources and Growing Demands for Medical Services
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作者 Gao Tian Bruce Gurd Wang Guoxing 《Chinese Journal of Population,Resources and Environment》 北大核心 2008年第1期57-62,共6页
Health institutions in the People’s Republic of Chinaare under considerable challenge. Innovations in management systems may support the challenge to increase both efficiency and effectiveness. The balanced scorecard... Health institutions in the People’s Republic of Chinaare under considerable challenge. Innovations in management systems may support the challenge to increase both efficiency and effectiveness. The balanced scorecard (BSC) is one such innova-tion. We have used a model to explore the factors that may impact the diffusion of the BSC in Chinese government hospitals. In particular, we concentrate on three factors — the outer context, the nature of the innovation and the communication and influence. The outer context and the nature of the innovation do provide an inducement to implement a BSC. The strength of the communica-tion and influence may affect the level of take-up. However, we recognise that they may choose the BSC not for any apparent technical excellence but for the legitimation that Western man-agement practices may bring to local managers. 展开更多
关键词 医疗服务 平衡记分卡 医院 有限健康资源 医疗需求
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Bureaucratic Culture and Innovation
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作者 Shigang Li Kexin She Li Zhang 《China & World Economy》 2024年第3期31-66,共36页
This study explores the effects of bureaucratic culture on innovation.We define bureaucratic culture as a culture in which power and officials are held in the highest regard.Using panel data of publicly listed Chinese... This study explores the effects of bureaucratic culture on innovation.We define bureaucratic culture as a culture in which power and officials are held in the highest regard.Using panel data of publicly listed Chinese manufacturing firms from 2007 to 2015,we found that bureaucratic culture negatively correlated with firms'patent output.A mechanism analysis shows that bureaucratic culture hindered corporate innovation by reducing firms'research and development inputs and decreasing innovation efficiency.Furthermore,we provided evidence that anti-corruption campaigns and the development of formal institutions could neutralize the negative impact of bureaucratic culture on corporate innovation.This study is the first to investigate quantitatively the causal effect of bureaucratic culture on corporate innovation and it can deepen the understanding of the relationship between culture and innovation in China.We speculate that promoting a creative culture,particularly one that fosters entrepreneurial spirit,is of utmost importance. 展开更多
关键词 bureaucratic culture corporate innovation economic growth talent allocation
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Evaluating the Redistributive Effect of Social Security Programs in China over the Past 30 Years 被引量:3
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作者 Meng Cai Jing Xu 《China & World Economy》 2022年第1期58-81,共24页
China has improved its social security system in recent decades,with the aim of achieving universal coverage and improving the equity of income distribution.Based on data from the five rounds of Chinese Household Inco... China has improved its social security system in recent decades,with the aim of achieving universal coverage and improving the equity of income distribution.Based on data from the five rounds of Chinese Household Income Project surveys from 1988 to 2018,this paper examines the long-term redistributive effects of social security programs in China.Our results show that social security programs have reduced income inequality consistently,and the positive redistributive effects have been improving for the past 30 years.Social security transfers have had an increasingly essential role in rural areas,especially after 2002 when China started to establish a comprehensive rural social safety net and expanded the coverage of the social security program.The redistributive efficiency of the social security system has also increased recently. 展开更多
关键词 income inequality redistributive effect redistributive efficiency social security transfer
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The Effect of Fast Internet on Employment:Evidence from a Large Broadband Expansion Program in China 被引量:1
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作者 Qing Wang Wenjing Xu +1 位作者 Yanghua Huang Jidong Yang 《China & World Economy》 2022年第3期100-134,共35页
Information and communication technology plays an important role in human life and social production.The existing literature has mainly studied the economic impact of such technology in developed countries;the use of ... Information and communication technology plays an important role in human life and social production.The existing literature has mainly studied the economic impact of such technology in developed countries;the use of broadband in developing countries has been overlooked.This paper fills the gap by examining a broadband development program in China.Difference-in-difference estimates show that the deployment of high-quality broadband promoted regional employment in the skilled service sector.The effect was larger in cities with a greater number of educated residents and cities in the west of China.We also found that broadband development stimulated firm creation and innovation.These findings imply that broadband promotes innovation and provides new impetus to the economic transition of emerging markets. 展开更多
关键词 BROADBAND communication infrastructure EMPLOYMENT regional development
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Monetary policy,accounting conservatism and trade credit 被引量:2
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作者 Bingbin Dai Fan Yang 《China Journal of Accounting Research》 2015年第4期295-313,共19页
Using a sample of A-share listed firms in China during the 2003–2012 period,this paper investigates the effect of accounting conservatism on trade credit,taking changes in monetary policy into account.We find that co... Using a sample of A-share listed firms in China during the 2003–2012 period,this paper investigates the effect of accounting conservatism on trade credit,taking changes in monetary policy into account.We find that corporations with higher accounting conservatism obtain more trade credit and that accounting conservatism has a greater influence on trade credit under tight monetary policy.Furthermore,the backgrounds of the supplier and customer influence the positive relationship between accounting conservatism and trade credit.This influence is more evident when a company is privately owned and has greater market power,and less evident when the supplier or customer is the controlling shareholder. 展开更多
关键词 MONETARY POLICY ACCOUNTING CONSERVATISM TRADE cred
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The knowledge society's origins and current trajectory
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作者 Fred Phillips Ching-Ying Yu +1 位作者 Tahir Hameed Mahmoud Abdullah El Akhdary 《International Journal of Innovation Studies》 2017年第3期175-191,共17页
We address the rise of the knowledge society,reviewing the major contributors to its conceptualization from Karl Marx onward.Synthesizing their ideas,we characterize the current state and direction of the knowledge so... We address the rise of the knowledge society,reviewing the major contributors to its conceptualization from Karl Marx onward.Synthesizing their ideas,we characterize the current state and direction of the knowledge society,its connection to related ideas of digital economy,e-government,and others,and detail implications for business and other organizations,and for society at large. 展开更多
关键词 Knowledge society Digital society Post-capitalist society DIGITALIZATION Digital transformation Industry4.0 Digital economy
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Corporate Financial Policies under Heterogeneous Beliefs
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作者 Wei-Ning Niu Wei-Xing Wu +1 位作者 Leng Ling Rong-Xi Zhou 《Journal of Management Science and Engineering》 2018年第2期101-124,共24页
This study investigates a firm's financing,investment,and payout policies through a rational expectation equilibrium based on which managers and outside investors have heterogeneous prior beliefs.The proposed mode... This study investigates a firm's financing,investment,and payout policies through a rational expectation equilibrium based on which managers and outside investors have heterogeneous prior beliefs.The proposed model demonstrates that managers tend to overinvest(underinvest)if the extent of heterogeneousness is above(below)a threshold,which differs under distinct circumstances.Moreover,a price bubble is positively related to overinvestment,and the model shows that a firm's optimal financing choices and payout policies vary with the assumption of heterogeneous beliefs. 展开更多
关键词 Heterogeneous beliefs Corporate financing Investment level Cash dividend Stock repurchase
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