公众参与对民生类公共服务满意度影响的理论分析

私营企业、公民个人以及公民社会组织等多元化主体参与公共生活治理是公共生活"民主性"的主要标志,也是实现公共生活"公共性"的重要途径。本文试图从理论上梳理和诠释公众参与对民生类公共服务满意度的可能影响机制,并从强化信息公开、扩大过程参与和促进政府回应三个维度提出改善民生类公共服务满意度的有效路径。     

The Interplay between Information Acquisition and Quality Disclosure

This study investigates the interactions between a manufacturer's information acquisition and quality disclosure strategies in a supply chain setting in which the manufacturer privately knows his product quality but is uncertain about consumer preferences. We argue that the manufacturer should treat his information acquisition and quality disclosure decisions as an integrated process because these decisions can significantly influence a retailer's rational inferences about product quality and can have conflicting effects on his own profitability. Although information acquisition helps a manufacturer subsequently craft better pricing and quality disclosure strategies, it also leaks certain product information to the retailer, thus helping the retailer better estimate product quality. Therefore, in equilibrium, a manufacturer may choose not to acquire any consumer information, even when such acquisition is costless. Moreover, we find that this adverse effect of acquisition is highly dependent on the cost of disclosure and consumers’ preference differentiation. Increased consumer preference differentiation may have a non‐monotonic relationship with the manufacturer's profit, and information acquisition can become detrimental to the manufacturer once the disclosure cost is sufficiently high.     

长江经济带环境治理效率的实证测度与影响因素研究

本文基于经济高质量发展视域构建了环境治理投入产出指标体系,运用熵权法、DEA模型与Dagum基尼系数分解法测度了长江经济带环境治理效率及其区域差异,并利用空间杜宾模型揭示长江经济带环境治理效率的可能影响因素.研究发现:长江经济带环境治理效率呈现出波动改善且空间不平衡的时空特征;环境规制对长江经济带环境治理效率的影响具有异质性,自愿型环境规制显著提升了长江经济带环境治理效率,而强制性环境规制和市场型环境规制的影响并不显著;城镇化对长江经济带环境治理效率存在显著积极影响,但财政分权却存在显著负向影响;长江经济带环境治理效率存在明显的空间相关性.为此,本文提出了改善长江经济带环境治理成效,推进长江经济带高质量发展的政策建议.     

民生导向的政府公共服务绩效评价框架研究

保障和改善民生以增进民生福祉是政府应当履行的核心职责,也是地方政府良治的基本表现.而破解当前民生难题,改善民生发展绩效依赖于基础教育、社会保障、医疗卫生、环境保护、公共文化等与民生息息相关的公共服务供给绩效的优化,需要政府提供更富效率、更有效果和更为公平的民生性公共服务.为此,文章立足转型时期民生发展的现实背景,基于民生保障和改善视角,尝试从价值取向、范围选择、内容界定和过程逻辑四个维度构建政府公共服务绩效评价的理论框架.     

外部性、产权理论与企业的性质

企业组织的解释是产权理论的重要应用之一,而企业产权理论就是从产权关系角度去阐释企业的性质即企业产生的原因、企业的边界以及企业的内部权利结构等问题.本文试图构建并评述企业产权理论分析的一般框架,它以外部性问题为逻辑起点,以产权理论为主线,以企业内部产权优化配置为逻辑归宿.从逻辑起点到逻辑归宿,结论充分验证了科斯定理的核心思想,即当交易费用不为零时,产权以及产权的配置至关重要.     

高质量发展下中国区域环境效率的实证测度、时空特征及影响因素研究

文章契合高质量发展理念对中国区域环境效率加以非参数测度,运用Dagum基尼系数、空间自相关和空间面板杜宾模型等方法,探究中国区域环境效率的时空特征和影响机理。结果显示：区域环境效率整体改善呈由东至西逐渐递减的空间不平衡分布,但该空间差异总体表现为波动下降趋势,区域间差异仍是导致空间差异的主要根源;区域环境效率存在显著的空间集聚特征,高效率区主要集中在东部沿海省份,而低效率区则分布于西部内陆省份;强制型环境规制、自愿型环境规制和城镇化对区域环境效率的提升具有显著促进作用,财政分权抑制了区域环境效率的改善,市场型环境规制的影响并不显著;自愿型环境规制具有正向空间溢出效应,产业结构则表现为负向空间溢出效应。     

Extending Financial Portfolio Theory for Product Management*

This paper attempts to modify financial portfolio theory for application in product portfolio decisions. The proposed multiperiod portfolio framework should help marketers in allocating scarce corporate resources to various competing products as well as contribute to developing a body of theory to solve an important problem in marketing management. Managerial and theoretical implications are discussed.     

The sum of root-leaf distance interdiction problem by upgrading edges/nodes on trees

Journal of Combinatorial Optimization - Network interdiction problems by upgading critical edges/nodes have important applications to reduce the infectivity of the COVID-19. A network of confirmed...     

A heuristic approximation algorithm of minimum dominating set based on rough set theory

The minimum dominating set of graph has been widely used in many fields, but its solution is NP-hard. The complexity and approximation accuracy of existing algorithms need to be improved. In this paper, we introduce rough set theory to solve the dominating set of undirected graph. First, the adjacency matrix of undirected graph is used to establish an induced decision table, and the minimum dominating set of undirected graph is equivalent to the minimum attribute reduction of its induced decision table. Second, based on rough set theory, the significance of attributes (i.e., vertices) based on the approximate quality is defined in induced decision table, and a heuristic approximation algorithm of minimum dominating set is designed by using the significance of attributes (i.e., vertices) as heuristic information. This algorithm uses forward and backward search mechanism, which not only ensures to find a minimal dominating set, but also improves the approximation accuracy of minimum dominating set. In addition, a cumulative strategy is used to calculate the positive region of induced decision table, which effectively reduces the computational complexity. Finally, the experimental results on public datasets show that our algorithm has obvious advantages in running time and approximation accuracy of the minimum dominating set.