我国上市公司股改对价的公平性研究

在股权分置改革中,非流通股股东支付给流通股股东的对价水平在总体上是公平的,不公平成分占整个对价水平的比例很小。流通股股东持股比例、公司未来发展前景与公司股改对价水平之间均呈显著负相关关系。严格控制公司出台对价承诺方案,并对有对价承诺方案的公司加强监督,以及加强对机构投资者、非流通股大股东和上市公司之间内幕交易的监管,将是本次股改和股改后监管工作的重中之重。     

股改股票的短期投资收益实证分析与预测

股权分置是中国证券市场的一大症结。股权分置是指上市公司的一部分股份上市流通,一部分股份暂不上市流通。2005年4月29日,中国证券市场正式进行股权分置改革。那么在“切实保护投资者特别是公众投资者的合法权益”的指导意见下,股改是否真的给投资者带来短期的收益呢?研究结果表明短期投资收益与对价方案存在着线性相关关系。投资者会问:什么样的公司具有高的对价支付可能呢?就此问题也做了实证分析。     

股权分置改革的理论与实践分析

本文阐述了股权分置改革的历程，分析了股权分置改革理论中的对价实质、实践中对价方案的特点和流通股股东的利益保护以及受限股票实现全流通等问题，以期为深化股权分置改革提供参考。     

西安城市发展带动农村发展的研究

城市带动农村,工业反哺农业是全面建设小康社会,实现国家现代化的必要途径。实施城市带动农村战略,必须从统筹城乡互动式协调发展上去考虑。西安应按照城乡联动的社会系统工程规划,积极探索城市对农村建设的多种带动方式,以产业为纽带,实现城乡经济协调与互动发展。     

加快吕梁发展循环经济的思考

吕梁市是全国重要的煤化工基地，是一个典型的资源型城市。资源的合理利用和环境保护是最主要的课题，这关系到吕梁的可持续发展，也是全国资源合理利用的需要。要加快发展循环经济，构建资源节约型社会，促进人与自然的和谐发展。     

Multiple-Category Decision-Making: Review and Synthesis

In many purchase environments, consumers use information from a number of product categories prior to making a decision. These purchase situations create dependencies in choice outcomes across categories. As such, these decision problems cannot be easily modeled using the single-category, single-choice paradigm commonly used by researchers in marketing. We outline a conceptual framework for categorization, and then discuss three types of cross-category dependence: cross-category consideration cross-category learning, and product bundling. We argue that the key to modeling choice dependence across categories is knowledge of the goals driving consumer behavior.     

A comparison of two types of price discounts in shifting consumers' attitudes and purchase intentions

This study focuses on consumer responses to two different types of price discounts: 1) a price discount with and 2) a price discount without a minimum purchase requirement. The effects of the discounts are examined to the extent that they may change consumers' attitudes and purchase intentions regarding a particular brand, by moving it from consumers' hold set to consideration set. A three-phase study on fast-food services in China was conducted. The results of the study provide new empirical insights regarding how to use a brand categorization model to predict the effects of different types of price discounts on consumer purchase behavior. More specifically, this study demonstrates that when a price discount with and without a minimum purchase requirement is applied to a brand in a hold set, the brand moves from the consumers' hold set to the consideration set. However, the effects of the two types of price discounts on consumers' attitudes and purchase intentions are not significantly different. The results are discussed in relation to brand management and marketing strategies in consumer goods industries.     

对价支付影响因素的理论和实证分析

我国上市公司股权分置改革成功与否关系我国证券市场未来的发展。本文根据财务理论,结合国情构建6个研究假设,并以330家实施股权分置改革的上市公司为样本,应用实证研究方法,探讨非流通股东的对价送出率及流通股东的对价送达率的影响因素。研究发现股改工作中所采用的市场化博弈机制可在一定程度上保障对价方案的合理性和两类股东的利益,但仍存在诸如机构投资者未发挥议价能力等问题。     

股权分置改革对价确定与我国上市公司治理机制有效性的检验

由于一个公司业已形成的公司治理原则和实践会影响股权分置改革中对价的确定,因而股权分置改革中的对价确定为我们从新的角度检验我国上市公司治理机制的有效性提供了机会。本文基于股权分置改革对价确定这一特殊的公司治理事件,从新的角度检验了我国上市公司现存公司治理机制的有效性,从而为判断目前我国上市公司治理现状提供了新的证据。本文的研究表明,在我国上市公司现存的公司治理机制中,控股股东之外的积极股东的存在成为目前阶段较为有效的公司治理机制,而发行B股或H股、债务融资对经理人挥霍自由现金流的约束以及董事会的治理作用还有待于进一步改进。由于一个公司业已形成的公司治理原则和实践会影响股权分置改革中对价的确定,因而股权分置改革中的对价确定为我们从新的角度检验我国上市公司治理机制的有效性提供了机会。本文基于股权分置改革对价确定这一特殊的公司治理事件,从新的角度检验了我国上市公司现存公司治理机制的有效性,从而为判断目前我国上市公司治理现状提供了新的证据。本文的研究表明,在我国上市公司现存的公司治理机制中,控股股东之外的积极股东的存在成为目前阶段较为有效的公司治理机制,而发行B股或H股、债务融资对经理人挥霍自由现金流的约束以及董事会的治理作用还有待于进一步改进。     

Conjunctive screening in models of multiple discreteness

Consumer demand for products often result in the purchase of multiple goods at the same time. Corner solutions, or the non-purchase of items, occur when consumers have strong preference for some goods that do not satiate and weak preference for other goods. However, if non-purchase arises because a consumer finds particular brands and attributes unacceptable, leading to the formation of consideration sets, then estimates of preference will be too extreme and biased. In this paper, we extend the work on consideration sets and discrete choices to a wider class of models, and develop a model of multiple discreteness with conjunctive screening of the alternatives that remove offerings from consideration. We propose a method for consideration set formation that does not require one to specify a partitioned space of the augmented variable, and that can be adapted into the class of choice models in which an outcome variable is removed. We explore implications for disentangling non-purchase due to consideration set formation using two data sets of ice cream and frozen pizza purchases. The ice cream data, in which responses are both discrete and volumetric, allow us to compare differences in how screening affect purchase incidence versus volumetric demand per incidence. Screening reduces the estimated number of customers with positive demand but leads to an increase in demand for those not screened. In the frozen pizza data, we find that conjunctive screening accounts for many of the observed corner solutions and leads to estimates of preference and satiation that differs from traditional models of multiple-discreteness without screening.