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一国信息化水平的提升能降低其信息要素成本,提升其信息要素禀赋。基于1995—2011年39国信息化和附加值贸易数据的实证研究可知,信息要素的丰富可以通过降低企业的单位生产成本和贸易成本直接促进制造业出口,即要素禀赋效应;也可以通过促进技术创新间接促进制造业出口,即技术创新效应。制造业中,高技术产业的信息要素投入比中、低技术产业更密集,信息化水平提升对前者的出口促进作用大于后者,因此,信息化能增进一...
The No Surcharge Rule (NSR) precludes merchants from charging higher prices to consumers who pay by card instead of other means (‘cash’). We analyze the NSR’s effects when a payment network faces loca...
A seller of a nondurable good repeatedly faces a buyer who is privately informed about the position of his demand curve. The seller offers a price in each period. The buyer chooses a quantitygiven the...
Stylized evidence suggests that people process information about their own ability ina biased manner. We provide a precise characterization of the nature and extent of these biases. We directly elicit...
The large literature on costly signaling and the somewhat scant literature on preference signaling had varying success in showing that sending a signal affects outcomes. We use a field experiment to s...
Spurred by improvements in routing technology, the architecture of the Internet is evolving. Until recently, nearly all routing took placethrough parallel hierarchies, in which each core Internet serv...
This paper analyzes of two kinds of Internet interconnection arrangements: peering relationships between core Internet Service Providers (ISPs) and transit sales by core ISPs toother ISPs. Core backbo...
At the present stage in the development of B2B markets, with few actual e-markets running at substantial volumes, there is little experience to use in identifying the key ingredients of success. Journ...
Microsoft stands accused of an illegal defense of its dominant position in the desktop operatingsystem market. According to the charge, exclusionary contracts and predatory conduct dealing primarily w...
Guided by theories of management by exception, we study the impact of Information andCommunication Technology on worker and plant manager autonomy and on span of control.We Önd, using an original...
The diffusion of new technologies is their adoption by different economic agents at different times. a classical concern in the diffusion of technologies (Griliches 1957) is the importance of raw tech...
本文针对近年来国内IPO公司信息披露质量不尽人意的现状,综合考虑拟上市公司、保荐人和监管部门之间的委托代理关系,采用信息不对称问题的研究框架比较了有无保荐制的发行制度下的社会效益最优模型。理论上,通过求解各模型的均衡解并对结果进行比较发现,在适宜的监管函数下保荐制能够一定程度上提高拟上市公司的信息披露质量。然而通过实证分析发现,目前国内IPO保荐制在提高信息披露质量方面表现堪忧,主要原因在于监管行...
论述了云计算资源需求预测的作用,提出了新的基于夹角余弦的广义模糊软集相似性度量方法,将相似性度量结果与预测精度相结合来获得各单项预测模型的权重,并针对云计算环境中资源需求所表现出的短期动态性和长期周期性特征,选用自适应神经模糊推理系统ANFIS和季节性ARIMA模型SARIMA作为单项预测模型,以此构建基于广义模糊软集理论的组合预测模型GFSS-ANFIS/SARIMA。最后将该模型用于云计算环境...
在不对需求做任何统计假设的情形下,该文用理论计算科学兴起的集成专家意见的弱集成算法研究多阶段报童决策。弱集成算法是一种指数加权平均集成方法,在一定的初始权重下,根据损失函数在线调整专家意见的权重。基于收益损失函数和固定订购量的专家意见,得到了与从累积收益角度研究相一致的决策方法;并扩展研究了带有回收价值的情形。理论上证明了决策方法的累积收益损失几乎不超过最优专家意见的累积收益损失。通过数值算例验证...
Matching 2,777 R&D firms in surveys conducted by the National Research Council between 1921 and 1938 with U.S. patents reveals that 59 percent of all firms and 88 percent of publicly-traded firms pate...

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