Strategic knowledge sharing in Bayesian games

This paper provides a model for the study of direct, public and strategic knowledge sharing in Bayesian games. We propose an equilibrium concept which takes into account communication possibilities of exogenously certifiable statements and in which beliefs off the equilibrium path are explicitly deduced from consistent possibility correspondences, without making reference to perturbed games. Properties of such an equilibrium and of revised knowledge are examined. In particular, it is shown that our equilibrium is always a sequential equilibrium of the associated extensive form game with communication. Finally, sufficient conditions for the existence of perfectly revealing or non-revealing equilibria are characterized in some classes of games. Several examples and economic applications are investigated.     

Spreads, Depths, and Quote Clustering on the NYSE and Nasdaq: Evidence after the 1997 Securities and Exchange Commission Rule Changes

This paper examines liquidity and quote clustering on the NYSE and Nasdaq using data after the two market reforms—the 1997 order–handling rule and minimum tick size changes. We find that Nasdaq–listed stocks exhibit wider spreads and smaller depths than NYSE–listed stocks and stocks with higher proportions of even–eighth and even–sixteenth quotes have wider quoted, effective, and realized spreads on both the NYSE and Nasdaq. This result differs from the findings by Bessembinder (1999, p. 404) that "trade execution costs on Nasdaq in late 1997 are no longer significantly explained by a tendency for liquidity providers to avoid odd–eighth quotations," and "odd–sixteenth avoidance has little relevance for explaining post–reform Nasdaq trading costs."     

Three New Real Estate Price Indices for Geneva,Switzerland

This paper develops constant-quality price indices for three categories of real estate-apartment buildings, vacant land, and condominiums—for the city of Geneva, Switzerland. We use both the hedonic and repeat sales models to estimate the price level and, in turn, the rate of price change. The general pattern of each series suggests that real estate prices in Geneva were fairly stable throughout the 1970s, increased sharply during the 1980s, but gave back some of these gains in the early 1990s. Interestingly, the sharp rise in prices in the second half of the 1980s is very similar to that found in some regions of the United States. We also consider the problem, implicit in the repeat sales method, of revisions in previously estimated price indices as additional data become available in later years.     

油气管道相关国外标准化组织制修订流程分析

对与油气管道领域相关的ISO、API、ASME、ASTM、NACE 5所知名国外标准化组织进行了简要介绍,对各组织在提案申请要求、提案内容、尤其是标准制修订流程方面进行了初步对比分析,同时以参与国际标准化组织ISO,为例详细说明了参与国际标准的注意事项及技巧,最后提出了我国在油气管道领域开展标准国际化的启示和建议。     

High-frequency credit spread information and macroeconomic forecast revision

We examine whether professional forecasters incorporate high-frequency information about credit conditions when revising their economic forecasts. Using a mixed data sampling regression approach, we find that daily credit spreads have significant predictive ability for monthly forecast revisions of output growth, at both the aggregate and individual forecast levels. The relationships are shown to be notably strong during ‘bad’ economic conditions, which suggests that forecasters anticipate more pronounced effects of credit tightening during economic downturns, indicating an amplification effect of financial developments on macroeconomic aggregates. The forecasts do not incorporate all financial information received in equal measures, implying the presence of information rigidities in the incorporation of credit spread information.     

美国《统一商法典》买卖篇2003年修改评析

美国《统一商法典》买卖篇2003年修改增加了一些涉及电子商务的新概念,对电子代理人的缔约能力、电子代理人行为的归属等重要问题做出了明确的规范,顺应了电子商务发展的需求,顺应了经济全球化最新发展的需求,启示我们在修订法律时需增加对在线消费者保护的内容,确立电子代理人的规则,完善电子商务规范。     

加强标准制修订前期研究保证采标项目在国内的实用性和适用性

介绍了当前标准化的形势、采标现状和存在的问题,并结合全国天然气标准化技术委员会在采标工作中的实际问题,提出解决措施。指出,加强标准制修订前期研究,可以更好的消化吸收国际先进标准,在研究成果的基础上进行标准的制修订,将使制定的标准更具实用性和适用性。     

《广告法 》上的"广告"——兼论《广告法》之修改和完善

以《广告法》上的"广告"为视点展开分析和论证,具有同时评判现行广告法制之各种制度设计的功能和价值。通过对《广告法》上的"广告"的诸要素的分析,以及对《广告法》所列举之违法商业广告的类型化梳理,有助于我们在深刻把握作为《广告法》规制对象的"广告"的真实内涵的基础上,全面评判《广告法》对"广告"之规制现状,进而为《广告法》的修改和完善提供参考与借鉴。     

商标法第三次修订的若干思考

商标法对保护市场经济的有序发展发挥着巨大作用,与人们的生活息息相关。现行商标法已不能满足商品经济的发展。修订商标法应保留相对理由审查制度,应加大对恶意行为人的处罚,驰名商标标准应增加商品质量优异和良好售后服务的内容。