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111.
The sealed bidk-double auction is a mechanism used to structure bilateral bargaining under two-sided incomplete information. This mechanism is tested in two experiments in which subjects are asked to bargain repeatedly for 50 rounds with the same partner under conditions of information disparity favoring either the buyer (Condition BA) or seller (Condition SA). Qualitatively, the observed bid and offer functions are in agreement with the Bayesian linear equilibrium solution (LES) constructed by Chatterjee and Samuelson (1983). A trader favored by the information disparity, whether buyer or seller, receives a larger share of the realized gain from trade than the other trader. Comparison with previous results reported by Daniel, Seale, and Rapoport (1998), who used randomly matched rather than fixed pairs, shows that when reputation effects are present this advantage is significantly enhanced. A reinforcement-based learning model captures the major features of the offer and bid functions, accounting for most of the variability in the round-to-round individual decisions. 相似文献
112.
Gady Zohar 《Mathematical Finance》2001,11(4):475-494
The optimal dynamic allocation problem for a Bayesian investor is addressed when the stock's drift—modeled as a linear mean-reverting diffusion—is not observed directly but only via the measurement process. Adopting a martingale approach, an appropriate generalization of the Cameron–Martin (1945) formula then enables computation of both the optimal dynamic allocation and the value function for a general utility function, in terms of an inverse Laplace transform of an explicit expression. Moreover, closed-form formulas are provided in the case of power utility. 相似文献
113.
大功率电子发射管广泛应用于广播电视发射设备及其他电子通信设备,文章介绍了采用冷打压老炼、灯丝电压调整、谐振匹配等技术方法延长电子管的使用寿命。 相似文献
114.
Audrey Charbonnier‐Voirin Patrice Roussel 《Canadian Journal of Administrative Sciences / Revue Canadienne des Sciences de l\u0027Administration》2012,29(3):280-293
As a component of overall employee performance, adaptive performance refers to the ability of an individual to change his or her behaviour to meet the demands of a new environment. The concept is relevant to firms that face especially complex and volatile business conditions. Research and practice have been hampered by a general lack of a widely available, psychometrically sound, multidimensional scale of adaptive performance that is applicable across a wide range of job contexts. Using both qualitative and quantitative methods, we develop and evaluate a 19‐item scale measuring five dimensions of adaptive performance. Copyright © 2012 ASAC. Published by John Wiley & Sons, Ltd. 相似文献
115.
In this article we investigate the impact of quality systems on innovation performance using the method of propensity matching. We use two French microeconomic surveys, the “Organizational Changes and Computerization” (COI 1997) and the “Community Innovation Survey” (CIS3 1998–2000). The first hypothesis indicating that quality (ISO 9000 certification) impacts positively on innovation is supported for certain areas of innovation performance. Furthermore, the second hypothesis states that different levels of quality differentially improve innovation performance. Results indicate that the innovation performance of firms with Top Quality Level is higher than that of firms with Medium Quality Level which is also higher than that of firms with Low Quality Level for certain areas of innovation. However, we found that the difference in innovation performance between firms with Medium and Low Quality Levels is not of a great magnitude. This study implies that in order to achieve a significant innovation performance improvement via quality systems, a very well-established quality system is needed within a firm. 相似文献
116.
Ma (in Econ. Theory 8, 377–381, 1996) studied the random order mechanism, a matching mechanism suggested by Roth and Vande Vate (Econometrica 58, 1475–1480, 1990) for marriage markets. By means of an example he showed that the random order mechanism does not always
reach all stable matchings. Although Ma's (1996) result is true, we show that the probability distribution he presented –
and therefore the proof of his Claim 2 – is not correct. The mistake in the calculations by Ma (1996) is due to the fact that
even though the example looks very symmetric, some of the calculations are not as “symmetric.”
We thank two anonymous referees for their helpful comments. B. Klaus’s and F. Klijn’s research was supported by Ramón y Cajal
contracts of the Spanish Ministerio de Ciencia y Tecnología. The work of the authors was also partially supported through the Spanish Plan Nacional I+D+I (BEC2002-02130 and SEJ2005-01690) and the Generalitat de Catalunya (SGR2005-00626 and the Barcelona Economics Program of CREA). 相似文献
117.
给出了一种采用信干噪比准则的、集成了预多波束天线与LMS自适应天线的软件天线方案,该方案采用开关合并方法,把软件天线输出接到最大输出信噪比的算法输出,实现算法分集.在TD-SCDMA动态模型上对提出的方法进行了仿真,结果表明,采用集成软件天线方案的误码率性能要优于单纯的预多波束天线或LMS自适应智能天线.仿真过程考虑了用户来波方向和用户到基站距离的动态变化,以及功率控制算法和系统同步过程的影响. 相似文献
118.
119.
Melvin F. Shakun 《Group Decision and Negotiation》1996,5(4-6):305-317
Evolutionary Systems Design (ESD) is a universal general problem solving, formal modeling, design framework for purposeful
complex adaptive systems (PCAS) and processes, i.e., task-oriented group processes. These processes constitute policy making,
group decision, negotiation, and multiagent problem solving with human and/or artificial agents. ESD is also a framework for
computer group support systems (GSS) that support these processes. The ESD general framework can be applied to define and
solve specific problems. In this article the ESD framework is presented and illustrated by example. The article provides background
for ESD computer implementations discussed in two other related articles (Lewis and Shakun 1996; Bui and Shakun 1996). 相似文献
120.
Is there really a foreign ownership wage premium? Evidence from matched employer-employee data 总被引:1,自引:0,他引:1
Numerous studies on firm-level data have reported higher average wages in foreign-owned firms than in domestically owned firms. This, however, does not necessarily imply that the individual worker's wage increase with foreign ownership. Using detailed matched employer-employee data on the entire Swedish private sector, we examine the effect of foreign ownership on individual wages, controlling for individual and firm heterogeneity as well as for possible selection bias in foreign acquisitions. We distinguish between foreign greenfields and takeovers and compare foreign-owned firms with both domestic multinationals and local firms. Our results show a considerably smaller wage premium in foreign-owned firms than what has been found in studies conducted at a more aggregate level. Moreover, foreign takeovers of Swedish firms tend to have no or even a negative effect on wages. 相似文献