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The Influence Mechanism of an Inclusive Organizational Climate on Innovation Input of Sci-Tech Talents
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作者 Yang Xiaoyi Zhao Weihong Ma Xiaomeng 《Contemporary Social Sciences》 2024年第2期52-66,共15页
With the implementation of China’s innovation-driven development strategy,the competition among sci-tech talents has become increasingly fierce.Stimulating the innovative vigor of sci-tech talents has become a hot to... With the implementation of China’s innovation-driven development strategy,the competition among sci-tech talents has become increasingly fierce.Stimulating the innovative vigor of sci-tech talents has become a hot topic in theoretical research and policy practice.Based on the data from 246 questionnaires collected from sci-tech talents in Hebei province,this study explored the influence mechanism of an inclusive organizational climate on innovation input from technological talents and verified the mediating effects of innovation self-efficacy and intrinsic motivation.The results indicate that an inclusive organizational climate has a significant positive impact on innovation input,innovation self-efficacy,and intrinsic motivation of sci-tech talents.Both innovation self-efficacy and intrinsic motivation play a partial mediating role between an inclusive climate and innovation input.This study verified the important role of an inclusive climate in an organization’s human resource management practices and encouraged managers to emphasize enhancing the innovation self-efficacy and intrinsic motivation of sci-tech talents,thereby continuously improving the level of innovation. 展开更多
关键词 inclusive climate innovation self-efficacy intrinsic motivation sci-tech talents
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Could more innovation output bring better financial performance?The role of financial constraints 被引量:3
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作者 Benlu Hai Ximing Yin +1 位作者 Jie Xiong Jin Chen 《Financial Innovation》 2022年第1期115-140,共26页
Innovation scholars highlight the economic benefits to firms,while research findings on the relationship between innovation output and economic returns remain mixed.In this study,we develop the profiting from innovati... Innovation scholars highlight the economic benefits to firms,while research findings on the relationship between innovation output and economic returns remain mixed.In this study,we develop the profiting from innovation(PFI)framework and address the crucial role of financial constraints in the relationship between innovation output and financial performance.We argue that the liability of newness differentiates firms’financial performance during the commercialization of innovation,leading to a U-shaped relationship between firms’innovation output and financial performance.We further document the moderating impact of individual financial constraints(IFC)and market-based financial constraints(MFC)on this curvilinear relationship.Empirical tests based on the 142,972 firm-year observations of the multi-source dataset of Chinese manufacturing firms from 1999–2009 support our hypotheses.The additional analysis shows that non-state-owned enterprises and small and medium enterprises benefit more from the synergistic effect of reductions of IFC and MFC than state-owned enterprises and large firms.Our study enriches the literature of the PFI framework by uncovering the mechanism between innovation output and economic returns where financial constraints play an essential role.To the best of our knowledge,we are among the first to investigate the processes and mechanisms between innovation output and financial performance,generating novel insights for business practitioners and policymakers. 展开更多
关键词 innovation output Financial performance Individual financial constraints Market-based financial constraints PFI framework
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Evaluation and Comparison of Marine Sci-tech Innovation Ability of 11 Coastal Provinces in China: A Case Study of Guangdong
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作者 Jun DU Ruimin FENG Bo YAN 《Asian Agricultural Research》 2016年第6期40-46,50,共8页
Through building an indicator system for evaluating the marine sci-tech innovation ability of China's coastal provinces,this paper made a comparative analysis on marine sci-tech innovation ability of 11 coastal pr... Through building an indicator system for evaluating the marine sci-tech innovation ability of China's coastal provinces,this paper made a comparative analysis on marine sci-tech innovation ability of 11 coastal provinces in 2011-2013 by the principal components analysis( PCA) method. It found these coastal regions can be divided into three levels. Guangdong Province belongs to the first level because its marine sci-tech innovation ability is relatively high. On this basis,it analyzed changes in marine sci-tech innovation ability of 11 coastal provinces with the aid of DEA's Malmquist productivity index model. Results indicate that the overall marine sci-tech innovation ability of 11 coastal provinces is rising,but there is significant difference between provinces and the influence of regional economic development level is not considerable.Technical progress is main driver for promoting marine sci-tech innovation ability of Guangdong Province and major factor influencing ranking of total factor productivity. 展开更多
关键词 MARINE sci-tech innovation ABILITY innovation ABILITY innovation ABILITY evaluation PCA MALMQUIST productivity index model
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Current Situations of Agricultural Sci-tech Innovation and Development Path in Nantong
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作者 YUAN Chun-xin SUN Qing-shan +3 位作者 QIU Hai-rong ZHU Hai-yan TANG Ming-xia XUE Chen-xia 《Asian Agricultural Research》 2012年第11期39-43,49,共6页
Nantong is a typical region of large population and little land.The conflict between resources and environment is growing.Thus,the improvement of independent innovation ability based on current situations,oriented tow... Nantong is a typical region of large population and little land.The conflict between resources and environment is growing.Thus,the improvement of independent innovation ability based on current situations,oriented towards the future and relying on scientific and technological force directly decides the effect of strong economic city construction.Through analysis on achievements of agricultural sci-tech innovation works,existing problems and demand for developing modern agriculture in Nantong,we present development ideas,target orientation and basic principles of agricultural sci-tech innovation works in Nantong,and put forward eight paths. 展开更多
关键词 AGRICULTURAL sci-tech innovation CURRENT SITUATION
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A New Era of Sci-Tech Innovation
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作者 ZHANG YING 《China Today》 2017年第12期28-31,共4页
JUST before the 19th National Congress of the Communist Party of China(CPC),on September 29,the world’s first trunk line of quantum telecommunication–the Jing-Hu(BeijingShanghai)Trunk Line–opened,which is connected... JUST before the 19th National Congress of the Communist Party of China(CPC),on September 29,the world’s first trunk line of quantum telecommunication–the Jing-Hu(BeijingShanghai)Trunk Line–opened,which is connected with the world’s first quantum satellite"Micius,"named after an ancient Chinese philosopher. 展开更多
关键词 A New Era of sci-tech innovation
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Research on the Relationship between Cooperation Innovation Expenditure and Economic Output of China’s Pharmaceutical Industry
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作者 Wang Qiuli Chen Yuwen 《Asian Journal of Social Pharmacy》 2022年第3期204-213,共10页
Objective To empirically analyze the relationship between cooperation innovation expenditure and economic output of China’s pharmaceutical industry,and provide a reference for improving its economic benefits and the ... Objective To empirically analyze the relationship between cooperation innovation expenditure and economic output of China’s pharmaceutical industry,and provide a reference for improving its economic benefits and the capability of cooperation innovation in the future.Methods The relevant data of China’s pharmaceutical industry from 2000 to 2016 was selected as a sample.Based on the co-integration theory,an error correction model was established to conduct Granger test of causality to study the relationship between cooperation innovation expenditure and economic output of China’s pharmaceutical industry.Results and Conclusion The cooperation innovation expenditure of China’s pharmaceutical industry has a significant positive impact on economic output.If cooperation innovation expenditure increases 1%,its economic output will go up by 1.7%.At the same time,the long-term promotion effect of cooperation innovation expenditure on economic output is more significant than the short-term effect. 展开更多
关键词 pharmaceutical industry cooperation innovation expenditure economic output co-integration test
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Auxiliary Model Based Multi-innovation Stochastic Gradient Identification Methods for Hammerstein Output-Error System
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作者 冯启亮 贾立 李峰 《Journal of Donghua University(English Edition)》 EI CAS 2017年第1期53-59,共7页
Special input signals identification method based on the auxiliary model based multi-innovation stochastic gradient algorithm for Hammerstein output-error system was proposed.The special input signals were used to rea... Special input signals identification method based on the auxiliary model based multi-innovation stochastic gradient algorithm for Hammerstein output-error system was proposed.The special input signals were used to realize the identification and separation of the Hammerstein model.As a result,the identification of the dynamic linear part can be separated from the static nonlinear elements without any redundant adjustable parameters.The auxiliary model based multi-innovation stochastic gradient algorithm was applied to identifying the serial link parameters of the Hammerstein model.The auxiliary model based multi-innovation stochastic gradient algorithm can avoid the influence of noise and improve the identification accuracy by changing the innovation length.The simulation results show the efficiency of the proposed method. 展开更多
关键词 Hammerstein output-error system special input signals auxiliary model based multi-innovation stochastic gradient algorithm innovation length
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Enhancing mergers and acquisition quality,accelerating technological innovation and achieving the second leap of China's steel industry
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作者 XU Lejiang 《Baosteel Technical Research》 CAS 2010年第2期1-4,共4页
Over the past 10 years, China's steel industry has made a substantial development in terms of scale, and has finally become a steel giant in the world. In the upcoming 10 years, fundamental changes will be made with ... Over the past 10 years, China's steel industry has made a substantial development in terms of scale, and has finally become a steel giant in the world. In the upcoming 10 years, fundamental changes will be made with the economic growth in China. Against this background, China' s steel industry will shift from a rapid development to a slow but sound development. In order to fulfill the second leap of China's steel industry, based on its current developing status and characteristics, and from the perspective of both national and corporate development, mergers and acquisition are both effective ways to raise the quality of the existing stock of asset in the steel industry, while technological innovation is the solid foundation for its second leap. 展开更多
关键词 mergers and acquisition technological innovation output scale steel industry
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Construction of Innovative Rural Sci-tech Service System in China
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作者 Xinyue LI Qiwei DAI 《Asian Agricultural Research》 2013年第7期22-26,共5页
At the background of structural regulation of agriculture and industrialized development of rural areas,systematic thought and constructive recommendations are put forward on building innovative rural sci-tech service... At the background of structural regulation of agriculture and industrialized development of rural areas,systematic thought and constructive recommendations are put forward on building innovative rural sci-tech service system in China from following 5 aspects. (1) In organizational system,rural sci-tech service associations should become nonprofit organizations that have independent legal entities. (2) In service object,it should take farmers as subject,new rural economic organizations as carrier,agricultural leading enterprises as handle,little village officials as joint,sci-tech special commissioner as link,and agricultural brokers as medium. (3) In information resources,it should enhance practicality construction and sharing. (4) In service methods and reform measures,it should combine information technology,expert technical consulting service,and sci-tech model base. (5) In policy support and input mechanism,it should follow the principle of diversification,set up government special funds,and formulate preferential policies to attract sci-tech talents to join in rural sci-tech services,and protect legal rights and interests of sci-tech personnel in rural sci-tech services. 展开更多
关键词 RURAL sci-tech SERVICE System innovation Agricultu
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Empirical Research on Scientific and Technical Innovation and Economic Growth in Shanghai
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作者 Lei Weng Wei Song Si-Bei Sheng 《American Journal of Operations Research》 2012年第1期82-90,共9页
With the explosive growth of knowledge and the further improvement of economic globalization, technology gradually represents its greater significance as the core factor of the strategic resources and competence for n... With the explosive growth of knowledge and the further improvement of economic globalization, technology gradually represents its greater significance as the core factor of the strategic resources and competence for national and regional development, which becomes a greater support to the construction of the innovative country and also a key to take the initiative to develop. Under this tendency, technological improvements should play a more important role in pushing the economy forwards, which brings higher requirements for technical development in Shanghai. Thus Shanghai must integrate and utilize the resources of new technology in a more comprehensive way. During the process of building up a well-off society as well as innovative regions in an all-around way, the demand for technological innovation is continuously increasing and its content, as to Shanghai, is undergoing further fulfillment. The study on the inner connection between Shanghai technological development and economic growth, thus under such background, means much to get a knowledge about the dynamic equilibrium relationship between technical progress and economic growth, which can be taken as an important reference for the government to draw up the plan for future technological development. 展开更多
关键词 Technology innovation output ECONOMIC Growth Patents VAR Model SHANGHAI
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人工智能与产业链韧性提升 被引量:11
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作者 吕越 张杰 《西安交通大学学报(社会科学版)》 北大核心 2024年第2期29-38,共10页
提升产业链韧性是推动高质量发展、维护国家安全的关键内容。基于亚洲开发银行编制的多区域投入产出表(ADB-MRIO)测算产业链韧性水平指标,并结合国际机器人联合会(IFR)提供的工业机器人数据,深入探究人工智能对产业链韧性的影响效应和... 提升产业链韧性是推动高质量发展、维护国家安全的关键内容。基于亚洲开发银行编制的多区域投入产出表(ADB-MRIO)测算产业链韧性水平指标,并结合国际机器人联合会(IFR)提供的工业机器人数据,深入探究人工智能对产业链韧性的影响效应和作用机制。研究发现:(1)总体而言,人工智能会显著提高产业链的韧性水平,这一结果在处理内生性问题、更换变量、样本范围和估计方法等稳健性检验下,依然显著成立。(2)机制分析表明,技术创新效应和治理体系优化效应是人工智能助力产业链韧性提升的关键内在机制。(3)异质性分析表明,在国家层面,人工智能对发达国家和数字基础设施普及程度更高国家的产业链韧性的提升作用更明显;在行业层面,相比低技术制造业,人工智能对中高技术类制造业的产业链韧性提升作用更为突出。(4)考虑2008年金融危机的影响时发现,金融危机会在一定程度上削弱人工智能对产业链韧性的提升效应。据此提出应培育壮大人工智能行业、推进产业链和创新链融合发展以及加快建设数字化政府。 展开更多
关键词 人工智能 产业链韧性 投入产出 工业机器人 技术创新 治理体系优化
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数字经济与实体经济融合是否提升了企业创新能力——基于正反向融合度的非线性检验 被引量:4
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作者 吕延方 赵琳慧 王冬 《厦门大学学报(哲学社会科学版)》 北大核心 2024年第2期107-120,共14页
促进数字经济与实体经济深度融合,依托数字技术与设备实现核心领域突破性创新,是高质量发展的关键。编制我国非竞争投入产出表,从供需双层面和广义狭义双范畴,可构建并测算我国数字经济与实体经济正、反向融合度,探究数字经济与实体经... 促进数字经济与实体经济深度融合,依托数字技术与设备实现核心领域突破性创新,是高质量发展的关键。编制我国非竞争投入产出表,从供需双层面和广义狭义双范畴,可构建并测算我国数字经济与实体经济正、反向融合度,探究数字经济与实体经济融合对实体企业创新影响及内在机制。研究发现,融合度对实体创新的影响存在非线性效应,正向融合度整体提升实体企业创新质量和效率,这与技术吸收能力强化相关;反向融合度处于合理区间时才能拉动创新增长,否则将因成本效应和适应性不足降低实体工业创新质量和效率。 展开更多
关键词 数字经济 非竞争投入产出模型 融合度 创新能力 非线性效应
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基于MS-VAR模型的中国创新质量演化阶段性与区域异质性研究 被引量:1
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作者 张林 陈梓慕 《区域经济评论》 北大核心 2024年第3期52-60,共9页
创新是高质量发展的第一动力,但是,创新质量本身缺少系统研究。从投入产出过程角度看,创新质量分为研发投入的知识产出质量和知识投入的经济产出质量两个阶段,基于马尔可夫区制转换向量自回归模型(MS-VAR)对中国及其分区1995-2021年时... 创新是高质量发展的第一动力,但是,创新质量本身缺少系统研究。从投入产出过程角度看,创新质量分为研发投入的知识产出质量和知识投入的经济产出质量两个阶段,基于马尔可夫区制转换向量自回归模型(MS-VAR)对中国及其分区1995-2021年时间序列数据进行检验,揭示投入产出过程创新质量演化阶段性及其区域异质性。研究发现:目前我国处于新的创新质量快速提升期。R&D投入强度的增加会促进专利产出质量,专利产出质量的增加也会促进新产品销售收入。前者在创新质量快速提升期更显著,后者在创新质量稳定发展期更显著。四大地区①的创新周期具有时间先后性,东部地区最早进入创新质量稳定发展期,西部地区最晚;两次过程中,创新投入产出质量之间正向效应的区域异质性和区制异质性并存;但处于创新质量稳定发展期的西部地区两种投入产出效应都为负。 展开更多
关键词 创新质量 投入产出过程 马尔可夫区制转换向量自回归模型
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技术市场厚度对区域创新能力的作用机制与影响效应 被引量:1
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作者 王宏伟 于荣光 《经济与管理》 北大核心 2024年第4期50-59,共10页
技术市场厚度是影响区域创新能力的重要因素。通过探究技术输出与技术输入成交额表征的技术市场厚度影响区域创新能力的不同作用机制以及作为中介变量的作用机制,并基于中国省级面板数据进行实证检验。结果表明:技术市场厚度对区域创新... 技术市场厚度是影响区域创新能力的重要因素。通过探究技术输出与技术输入成交额表征的技术市场厚度影响区域创新能力的不同作用机制以及作为中介变量的作用机制,并基于中国省级面板数据进行实证检验。结果表明:技术市场厚度对区域创新产出具有显著正向促进作用,技术输入对创新的实际促进作用高于技术输出;技术市场厚度作为FDI、互联网使用率影响创新产出的中介效应显著,作为知识产权保护影响创新产出的中介效应不显著;技术市场厚度以及区域创新能力水平较低时会限制技术市场厚度对区域创新产出的促进作用。 展开更多
关键词 技术市场厚度 创新能力 技术输入 技术输出
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创新赋能与资本市场定价效率 被引量:1
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作者 王艳艳 樊立伟 何如桢 《厦门大学学报(哲学社会科学版)》 北大核心 2024年第3期117-128,共12页
新质生产力是经济高质量发展的推动力和支撑力,而创新作为新质生产力的首要特征,是否以及如何赋能资本市场的高质量发展,是一个值得思考的问题。以2011—2020年中国A股上市公司为研究样本,从盈余公告后的漂移视角,可探究创新产出与资本... 新质生产力是经济高质量发展的推动力和支撑力,而创新作为新质生产力的首要特征,是否以及如何赋能资本市场的高质量发展,是一个值得思考的问题。以2011—2020年中国A股上市公司为研究样本,从盈余公告后的漂移视角,可探究创新产出与资本市场定价效率之间的关系,并尝试厘清创新产出对资本市场定价效率影响的作用机制。研究发现,创新产出能够显著缓解盈余公告后漂移,提高资本市场定价效率;而且创新产出的突破性程度越高,其影响作用越强。机制检验发现,企业创新对资本市场定价效率的提升主要缘于:创新水平高的企业具有高的盈余持续性以及较低的信息不确定性。异质性检验发现:创新产出对盈余公告后漂移的抑制作用主要发生在分析师跟踪人数较多、媒体报道较多以及机构投资者持股较高的企业;而且,相对于非“四大”审计的公司,“四大”审计的公司的创新产出对盈余公告后漂移的作用更为突出。 展开更多
关键词 创新产出 盈余公告后漂移 信息不确定性 定价效率 新质生产力
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区域协同创新视角下广东省众创空间运行效率评价研究
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作者 张育广 张超 《科技管理研究》 2024年第17期67-76,共10页
众创空间的有效运行在很大程度上影响着区域创新效率。建立能够有效分析众创空间运行效率的科学评价体系,才能找到众创空间无序发展的问题所在,以实现其发展的辐射带动作用和价值利益的最大化。鉴于此,基于广东省众创空间2016—2020年... 众创空间的有效运行在很大程度上影响着区域创新效率。建立能够有效分析众创空间运行效率的科学评价体系,才能找到众创空间无序发展的问题所在,以实现其发展的辐射带动作用和价值利益的最大化。鉴于此,基于广东省众创空间2016—2020年有关面板数据,采用BCC模型和数据包络分析(DEA)-Malmquist指数模型相结合的方法,通过动静态结合对广东省众创空间运行效率进行客观评价分析,以期为提升众创空间服务的有效供给提供参考。结果表明:2018年是广东省众创空间转型发展的关键年份,逐渐从开始的规模化增长转型迈向高质量发展,但不同城市之间的综合效率水平极不平衡,综合效率最高的为1.000,最低的为0.384;广东省众创空间运行效率整体表现较好,处于逐年增长的态势,其中众创空间的整体运营管理水平和技术投入效率逐年提高,但单一的规模驱动增长模式很难保持持续增长,技术进步变化对众创空间运行效率的影响更加显著。因此,需要构建科学合理的众创空间运行评价指标体系,明晰正确的发展方向,减少资源冗余和浪费。 展开更多
关键词 众创空间 创新效率 运行效率 评价体系 投入产出 区域协同创新
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数字普惠金融与民营企业创新
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作者 陈利 张慧琳 谢家智 《财贸研究》 北大核心 2024年第5期101-110,共10页
以2011—2018年沪深民营上市公司为样本,考察数字普惠金融对民营企业创新的影响。研究发现,数字普惠金融显著促进了民营企业创新,且数字普惠金融的覆盖广度、使用深度和数字支持服务程度三项子指标均与企业创新产出显著正相关。进一步... 以2011—2018年沪深民营上市公司为样本,考察数字普惠金融对民营企业创新的影响。研究发现,数字普惠金融显著促进了民营企业创新,且数字普惠金融的覆盖广度、使用深度和数字支持服务程度三项子指标均与企业创新产出显著正相关。进一步研究显示,数字普惠金融对民营企业创新产出存在排序效应和规模效应。具体表现为,数字普惠金融对高生产率、小规模民营企业创新产出的影响更加明显。作用机制检验结果表明,数字普惠金融通过降低企业融资成本促进了创新产出。因此,确立数字普惠金融发展战略,发挥普惠金融的“普”“惠”特性,有利于优化民营企业营商环境,促进民营企业创新发展。 展开更多
关键词 数字普惠金融 创新产出 民营企业 融资成本
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股权激励下核心员工对企业创新产出与创新效率的影响研究——以医药企业为例
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作者 邹蔚 付玉洁 王琼 《工程经济》 2024年第4期28-36,共9页
作为技术密集型的医药企业,创新是其核心竞争力,核心员工则是医药企业创新活动的中坚力量。本文分析了股权激励下核心员工对医药企业创新活动与创新效率的影响机制,并选取沪、深两市2012—2019年实施股权激励的94家上市医药企业的年度... 作为技术密集型的医药企业,创新是其核心竞争力,核心员工则是医药企业创新活动的中坚力量。本文分析了股权激励下核心员工对医药企业创新活动与创新效率的影响机制,并选取沪、深两市2012—2019年实施股权激励的94家上市医药企业的年度数据和82家上市医药企业的季度数据进行验证。结果证实:股权激励下的核心员工,能够促进创新产出和提升创新效率,且激励效果与激励比例显著正相关。因此医药企业要提高创新产出和创新效率,应重视核心员工特别是研发人员的作用。 展开更多
关键词 股权激励 核心员工 创新产出 创新效率
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政府研发补贴政策对企业技术创新的影响研究——基于我国制造业上市公司的实证检验
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作者 谭洪益 《哈尔滨学院学报》 2024年第5期35-40,共6页
文章利用2007—2019年我国制造业上市公司的研发补贴数据,实证检验了政府研发补贴政策对制造企业技术创新的影响。研究结果发现研发补贴对企业创新投入和产出具有显著促进作用;研发补贴对大规模企业的创新投入促进效应更显著,而对小规... 文章利用2007—2019年我国制造业上市公司的研发补贴数据,实证检验了政府研发补贴政策对制造企业技术创新的影响。研究结果发现研发补贴对企业创新投入和产出具有显著促进作用;研发补贴对大规模企业的创新投入促进效应更显著,而对小规模企业的创新产出促进效应更显著;相比国有企业、非技术密集型企业和融资约束低的企业,研发补贴对非国有企业、技术密集型企业、竞争强度高的企业和融资约束高的企业的创新投入和产出促进效应更加显著。在经过稳健性检验和内生性控制后,上述主要结论仍然稳健。因此,政府研发补贴政策应考虑企业和行业差异,并结合竞争政策和融资政策,从而提高政策有效性。 展开更多
关键词 研发补贴 创新投入 创新产出 政策组合
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创新激励政策促进数字企业研发的效应比较
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作者 刘和东 王燕 《科技进步与对策》 北大核心 2024年第11期110-119,共10页
剖析政府创新补贴、所得税优惠、研发加计扣除三项创新激励政策对数字企业研发的影响机制,构建双向固定效应、系统GMM模型,收集2014—2021年创新激励政策、数字企业上市公司研发相关数据,测度并比较不同创新激励政策对研发的效应大小。... 剖析政府创新补贴、所得税优惠、研发加计扣除三项创新激励政策对数字企业研发的影响机制,构建双向固定效应、系统GMM模型,收集2014—2021年创新激励政策、数字企业上市公司研发相关数据,测度并比较不同创新激励政策对研发的效应大小。结果发现:对于研究投入,单项政策“研发加计扣除”效应最大,双项政策“政府创新补贴+研发加计扣除”效应最大,三项政策效应小于双项政策的最大效应;对于开发投入,单项政策“政府创新补贴”效应最大,双项政策“所得税优惠+研发加计扣除”效应最大,三项政策效应大于双项政策的最大效应;对于研发产出,单项政策“研发加计扣除”效应最大,双项政策“所得税优惠+研发加计扣除”效应最大,三项政策效应大于双项政策的最大效应。 展开更多
关键词 政府创新补贴 所得税优惠 研发加计扣除 研发投入 研发产出
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