基于计划行为理论的家族企业资本结构形成路径研究:实证分析及稳健性检验

以计划行为理论为研究框架对家族企业的资本结构形成过程进行理论分析和实证检验,研究发现家族企业的资本结构形成路径是以家族企业家的融资意向为起点,然后上升为企业融资决策,进一步转化为融资行为,最后形成特定资本结构的过程。实证检验的结果不仅支持理论推导的路径模型,同时表明,即便企业发生重大变动,计划行为理论模型在解释家族企业资本结构形成上仍然适用,家族企业资本结构形成路径具有稳定性。     

低碳产业上市公司并购行为对公司劳动力需求的效应——基于动态面板数据的实证分析

以2003~2009年沪深两市发生并购的低碳产业上市公司的面板数据集为研究对象,通过构造动态面板数据模型,探究低碳产业上市公司并购对公司劳动力需求的影响。研究结果表明低碳产业上市公司并购有利于增加公司劳动力需求。本文研究不但从理论上丰富了并购的研究内容、拓展了研究范围,从实证上明确了并购对公司劳动力需求的影响关系,并且为相关政府部门合理制定就业政策提供了可行建议。     

网络消费者行为影响因素分析及实证研究

保持网络顾客忠诚是电子商务企业提高利润率和实现可持续发展的重要前提,其关键是明晰网络顾客忠诚的影响因素和影响途径.本文以计划行为理论为依据,分析了电子商务环境下消费者行为意向和实际消费行为的各种影响因素,建立了整合电子商务服务质量、顾客满意、情感关系和切换障碍的网络顾客忠诚影响模型.在此基础上提出了相应的假设,并通过实证方法对假设模型进行验证.研究发现,顾客忠诚行为意向是实际消费行为最直接的影响因素,而顾客满意、情感关系以顾客行为意向为中介间接影响顾客实际消费行为;网站使用经历、服务可靠性、安全与隐私、客户服务经历等因素通过顾客满意间接影响顾客忠诚行为意向.     

无标度网络的同配性对群体合作行为的影响

考虑维持社会关系所需的"成本"因素,在囚徒困境博弈模型中引入关系成本参数,通过仿真实验研究囚徒困境博弈在同配性可变的无标度网络上的演化,进而探讨不同关系成本条件下无标度网络的同配性对合作行为的影响。研究结果表明,随着关系成本的提高,群体的合作行为受到了明显的影响,合作者均衡密度表现出先降低后升高的趋势。然而,在不同的关系成本参数条件下,无标度网络的同配性始终抑制了合作行为的演化,合作者均衡密度随着同配性水平的增大而减小。     

行政主体行为的合理性与正当性问题研究综述

行政主体行为的合理性和正当性是领导、决策、执行等行政管理活动的合法性问题,文章对近年国内相关研究成果进行总结归纳,并对今后的研究方向进行了一定的展望。     

论行政决策失误的法律调控

对行政决策失误进行法律调控应针对行政决策系统进行,即通过对行政决策中枢系统进行明确的角色定位,加强行政决策咨询与信息系统的建设力度,确保行政决策执行系统的独立地位和完善行政决策监督系统机制等四个路径,以实现对行政决策失误的有效调控。     

Repeated sampling adds to the genetic diversity of Lepidochelys olivacea (Eschscholtz 1829) olive ridley sea turtle

ABSTRACT

First sampled in the late 1990s, Campamento Tortuguero La Gloria, in Jalisco, Mexico, was resampled for olive ridley sea turtle (Lepidochyles olivacea Eschscholtz) diversity 10 years later. A comparison with all previously reported mitochondrial sequences revealed that these new samples added to the known genetic diversity for this species, and revealed unexpectedly high genetic diversity among turtles nesting on this beach. The results highlight the importance of systematic resampling in known nesting rookeries to verify the genetic diversity of study populations. Three new olive ridley haplotypes are reported, all more closely related to Baja Californian haplotypes than to Australian haplotypes. Significant genetic divergence is reported within populations, within ocean basins (Atlantic, Pacific, Indian and Indo-Pacific), and between ocean basins. Furthermore, this is the first study that integrates satellite tagging data to demonstrate diverse post-nesting migration patterns of turtles with identical haplotypes, and it demonstrates flexibility in post-nesting migratory behaviour for olive ridley sea turtles of the same genetic provenance.     

Project knowledge and its resituation in the design of research projects: Seymour Benzer's behavioral genetics, 1965-1974

The article introduces a framework for analyzing the knowledge that researchers draw upon when designing a research project by distinguishing four types of “project knowledge”: goal knowledge, which concerns possible outcomes, and three forms of implementation knowledge that concern the realization of the project: 1) methodological knowledge that specifies possible experimental and non-experimental strategies to achieve the chosen goal; 2) representational knowledge that suggests ways to represent data, hypotheses, or outcomes; and 3) organizational knowledge that helps to build or navigate the material and social structures that enable a project. In the design of research projects such knowledge will be transferred from other successful projects and these processes will be analyzed in terms of modes of resituating knowledge. The account is developed by analyzing a case from the history of biology. In a reciprocal manner, it enables a better understanding of the historical episode in question: around 1970, several researchers who had made successful careers in the emerging field of molecular biology, working with bacterial model systems, attempted to create a molecular biology of the physiological processes in multicellular organisms. One of them was Seymour Benzer, who designed a research project addressing the physiological processes underlying behavior in Drosophila.     

铜陵江段白鱀豚生态环境与行为的变化

详细报道近十年来铜陵江段白■豚lipotesvexillifer栖息活动地因江道、渔类、交通等生态环境改变而导致本种在数量、群结构、生态行为等方面的显著变化。