耕地保护的政策缺陷及其对策研究

我国已经出台了众多耕地保护的政策,但是政策运行效果与政策的预期目标之间仍然存在着一定的差距。本文认为中央政府在耕地保护政策设计过程中存在的缺陷和地方政府在政策的执行过程中偏离了政策设定的目标是导致耕地保护政策不能完全发挥其作用的最重要的原因,最后就此提出了改变我国现行耕地保护政策的一些思路。     

民用建筑暖通空调节能经济原理探讨

引入了民用建筑暖通空调节能经济原理的概念,分别对节能的外部经济性、暖通空调用能价格以及节能建筑产品生产的规模经济等方面进行了理论探讨,并分别提出了相应的经济及管理措施。     

An empirical examination of consumer adoption of Internet of Things services: Network externalities and concern for information privacy perspectives

The Internet of Things (IoT) is emerging as a significant development in information technology, with the potential to increase convenience and efficiency in daily life. While the number of IoT service users has increased dramatically, little is understood about what motivates the continued use of such services. The primary objective of this study is to develop and refine a conceptual framework from the perspective of network externalities and privacy to provide a theoretical understanding of the motivations that drive continued use of IoT services. The proposed model was empirically evaluated using survey data collected from 508 users concerning their perceptions of IoT services. The results indicate network externalities play a significant role in influencing consumers' perception of usage benefits and thus adoption, whereas privacy concerns have a relatively weak effect on adoption. Implications for IS researchers and practice are discussed.     

The formation of status asymmetric ties: a perspective of positive externality and empirical test

Previous studies have investigated the circumstances that motivate firms to form status asymmetric ties. However, these studies have mainly focused on firm attributes or environmental factors. Deviating from prior works, we propose that firms can take advantage of alliance portfolios to trade resources with potential partners’ status. Specifically, a firm that can access high-quality portfolio technological resources can better realize exchanges with partners’ status. The degree of positive externality depends on the relationships of focal firms with existing partners and their capabilities to utilize external knowledge resources. Data of alliances formed in the computer industry in the USA reveal that a focal firm is more likely to ally with a high-status partner if it can access high-quality portfolio technological resources. Such positive externality of portfolio technological resources is stronger when the focal firm has more repeated ties with its existing partners and when they utilize more external knowledge resources.     

具有网络外部效应的三度价格歧视研究

通过建立两厂商和两子市场的两阶段博弈模型,分析具有网络外部效应的寡头竞争市场厂商实施三度歧视定价的产出、价格和社会福利问题,研究结果表明:厂商通过歧视定价提高了强市场的价格,相应降低了弱市场的价格,虽然总产出没有改变,但却减少了社会总福利.     

Measuring Economic Externalities of IT and R&D

We measure and compare externalities of IT and R&D capital stocks in different Korean industry sectors using inter‐industry input‐output tables of 1985, 1990, 1995 and 2000. We also compute the multiplier effects that relate to the directions of future economic effects. The key findings are as follows. First, we observed continuous capital deepening in all nine industries over the period of 1985 to 2000. Second, the backward multipliers of IT capital were the highest in the manufacturing industry. As for inter‐industry externalities, the indirect backward multipliers, which exclude intra‐industry backward multiplier effects within the industry, were also the highest in the manufacturing industry. Third, the forward multiplier effects of IT capital stock were the most substantial in the construction industry during the 1980s and in the manufacturing industry thereafter. Finally, using the transition multiplier matrix reflecting the backward effects of the two capitals in the past, the economic backward effects, especially the external economic effects, are predicted to increase through 2010 among all industries. The above findings suggest that, in order to maximize the forward and backward effects of the ever‐increasing IT capital, we need to formulate an industry policy reducing the cost of capital accumulation in the manufacturing industry through improvement in productivity of the IT industry.     

“高等教育外部性”研究综述

近年来,教育科学抵挡不住“经济学帝国主义”的强势渗透,“教育的外部性”研究就是一个典型代表。教育的复杂性也决定了其外部性很复杂,不同层次、类别的教育的外部性的性质、强度也各异。通过对外部性问题研究的梳理,对近期高等教育外部性研究,包括其原因、特征、表现形式以及矫正措施进行了文献综述。     

Attributional biases about the origins of attitudes: Externality, emotionality and rationality.

Pilot work and 3 studies investigated the ways people explain the origins of attitudes. Study 1 examined the use of 3 dimensions (externality, rationality, emotionality) to explain the origin of people's own, in-group, and out-group attitudes. Attributions for own attitudes were the least externally and emotionally based and the most rationally based. By comparison with the out-group, less externality, less emotionality, and more rationality also were attributed to in-group attitudes. Studies 2 and 3 examined the effects of intergroup threat on attributions for in- and out-group attitude positions. Under high threat, more externality and emotionality but less rationality were attributed to out-group attitudes than under low threat. Intergroup differentiation mediated the difference between out-group attributions under high and low threat. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Vertical integration in the telecommunication market

In this paper, the policy issues of the vertical integration in the telecommunication market are discussed in the economic standpoint. A simple but robust game model about the vertical integration is developed to analyze the relationship between telecommunication common carriers and service providers. We also consider network externality on demand function, which is one of the essential characteristics of telecommunication market. The Nash equilibrium prices and the profits under both cases of vertical integrated and non-integrated markets are derived, and the welfare implications of the vertical integration are discussed. One of the significant result obtained from this study is that consumers are always better off under the vertical integration.     

公共选择中的外部成本及降解策略

民主遴选机制作为中国特色的民主政治形式,在实践中面临着各种外部性带来的外部成本问题.该文从公共选择和制度经济的视角揭示了民主遴选一般机理,采用效用函数模型分析了外部性对人力资源配置的影响;采用博弈论方法分析了民主遴选中各参与主体及不同参与策略,得出个体收益与总体福利的支付矩阵,讨论了各种条件下选择行为的成本收益,阐明了外部成本的产生机制.经过分析,分别从明晰遴选产权等方面,提出了降解民主遴选外部成本的相应制度设计.分析表明,通过设计相关激励与约束制度来降解民主遴选过程中的外部成本,不仅对民主遴选有现实借鉴意义,而且对推动我国的民主政治进程也有一定的政策启示.