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1.
考虑到当前创新环境日益复杂化,科学与技术耦合系统已成为一个受系统内外因共同影响而发生演化的开放系统。在为耦合系统构建状态空间模型的基础上,通过求解该模型,刻画科学技术化强度和技术科学化强度,据此分析科学与技术互动产生的互补效应和成本效应,评价29个省份的科学与技术耦合效果,并测度地区科技发展所属耦合路径类型。研究表明,不同省份推进科学技术化进程和技术科学化进程的差异性显著;科学与技术耦合效果最佳并不能说明地区科技发展速度最快;绝大多数省份的科技耦合路径表现为科技中立路径,占比最小的路径为技术强势路径。基于不同省份的耦合情况差异,提出针对性建议。 相似文献
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基于战略和复杂双重维度,剖析阿里巴巴商业生态系统形成逻辑。结果发现:较强的战略控制力有利于强化平台商业模式,催生跨行业多样化平台,继而推进生态内信息化不断深入发展;随后,商业生态系统积蓄丰富的共享数据资源,打开资源交易和创造边界,提升生态主体能力的同时重塑生态系统属性;有着更强复杂应配力的生态主体不断探索商业模式创新,生态内外的创新扩散催化商业生态系统竞争,进一步强化复杂应配力。在核心企业战略控制力和生态主体复杂应配力的双重作用下,商业生态系统呈现前生态状态、生态内卷、生态扩散和生态共生4种不同状态。 相似文献
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利用2003-2015年我国内地30个省份的省际面板数据,在概述对外直接投资影响一国创新能力作用机制的基础上,借鉴Lichtenberg和Pottelsberghe提出的国际研发溢出测算方法,从技术差距视角出发,运用面板门槛模型实证检验二者间的关系。结果显示:对外直接投资可以通过R&D成果反馈效应、并购整合效应以及产业前后向关联效应提升一国创新能力;在不同的门槛取值区间内,OFDI逆向技术溢出对创新能力提升的作用呈显著倒U型特征,只有在最优技术差距区间内才能发挥其最大效应。最后,在作用机制概述和实证研究结论基础上,从政府和企业两个层面提出政策建议。 相似文献
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The rise of the natural and organic products market follows a global trend of increasing demand largely due to the growth of environmental awareness and the concern of having a healthier diet. Thus, the objective of this study is to propose and test a theoretical model based on antecedent constructs of perceived value and repurchase intention on the consumption of organic products. The results, based on 256 consumers of organic products, confirm the positive relationship between environmental awareness and perceived quality, healthy consumption, and perceived price fairness. Moreover, they underpin the influence of healthy consumption, perceived price fairness and perceived quality on perceived value, and lastly, the influence of perceived value on repurchase intention. Therefore, this study can help practitioners and consumers comprehend in a more systematic way the buying behaviour of this food category. 相似文献
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关于合作关系对合作创新的影响,现有研究大多局限于单一的社会网络视角,对网络层次的关系特征如何通过双边层次的关系质量影响技术创新模式的过程欠缺机理性认识。结合社会网络、社会资本和知识转移理论,分析网络联结强度、企业间信任以及技术创新模式三者间关系。利用327份来自全国多地的制造及高新技术企业数据,采用结构方程模型检验方法对研究假设进行检验。结果表明:相对于经济型信任,强联结会带来更多情感型信任;情感型信任更有利于渐进式创新,经济型信任更有利于突破式创新;联结强度对渐进式创新的作用是通过情感型信任传递的,而联结强度对突破式创新的作用是通过经济型信任传递的。 相似文献
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We propose a novel class of convex risk measures, based on the concept of the Fréchet mean, designed in order to handle uncertainty which arises from multiple information sources regarding the risk factors of interest. The proposed risk measures robustly characterize the exposure of the firm, by filtering out appropriately the partial information available in individual sources into an aggregate model for the risk factors of interest. Importantly, the proposed risks can be expressed in closed analytic forms allowing for interesting qualitative interpretations as well as comparative statics and thus facilitate their use in the everyday risk management process of the insurance firms. The potential use of the proposed risk measures in insurance is illustrated by two concrete applications, capital risk allocation and premia calculation under uncertainty. 相似文献
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This paper analyses changes in economic regional interlinkages in Europe over time and investigates the factors that could explain the dynamics of these changes. Our four main findings are the following: (i) we detect a significant surge in regional synchronisation after the Great Recession; (ii) we identify the regions most interrelated with the rest of Europe, namely, Ile de France, Inner London and Lombardia; (iii) we find that sectoral composition explains regional synchronisation in Europe, mainly after the Great Recession and (iv) we document that sectoral composition has important implications for aggregate economic fluctuations, in particular, that similarities in services-related sectors across regions explain a nonlinear relationship between sectoral composition and regional business cycle synchronisation. We also propose a new method to measure time-varying synchronisation in small samples that combines regime-switching models and dynamic model averaging. 相似文献
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Aybegüm G. Belba M. Mithat Üner Erin Cavusgil S. Tamer Cavusgil 《Thunderbird国际商业评论》2019,61(2):325-337
The rise of new middle‐class consumers in rapidly transforming emerging markets has attracted the attention of Western business executives. What they know about this growing segment of customers will determine whether they succeed or fail in these markets. The present study examines the factors that drive the discretionary consumption of this new middle class, including the effects of consumerist values, religious values, occupation, education levels, and ownership of fixed assets. The study draws its insights from data gathered from 391 new middle‐class consumers in Ankara, the second‐largest city in Turkey. The findings provide important implications for businesses, both indigenous and foreign. An overall implication is that managers ought to understand and qualify the new middle class in emerging markets not simply by their access to disposable income but by deeper attitudinal and behavioral characteristics. 相似文献