论购物佣金的法律治理

目前,旅行社扭曲的经营模式是以不合理的购物佣金为基础的,这种购物佣金也几乎必然损害旅游者权益.当前的治理方式主要有两种,即立法禁止与立法规范.但两者都没能解决问题,其共同的困境在于:第一,都是地方立法,受限于地方利益的顾虑,执法者不可能严格执法；第二,都过度依赖行政监管,但行政监管存在自身固有的不足.可行的解决思路是在旅游法中赋予旅游者一项合适的权利,通过旅游者有效的维权活动制约旅行社损害旅游者利益的佣金行为.购物反悔权正是这样一种合适的权利,它将迫使旅行社主动将购物佣金控制在旅游者可以接受的限度内,或者干脆放弃购物安排.此时行政监管的主要职责将转化为保障旅游者该项权利的顺利实现,借此形成市场主导、行政保障的治理模式.     

不定方程A_1d~(x_1)±A_2d~(x_2)±…±A_nd~(x_n)=N的探究

利用递除法给出不定方程方程A1dx1±A2dx2±…±Andxn=N的求解过程,并且讨论其推广的乘积形式。     

Foreign Direct Investment,Institutional Voids,and the Internationalization of Mining Companies into Africa

The paper investigates the factors influencing the internationalization of mining firms into Africa and the strategies employed. We find that the three most important factors identified by mining houses as influencing their decisions to invest are all related to institutional voids particular to developing countries—security of tenure, political stability and poor infrastructure. South African firms have shown themselves to be adept to doing business in volatile political and institutional environments because of their experience within their home base with relatively weaker institutions. They have therefore developed advantages over multinational enterprises from industrialized countries to doing business in these new frontiers.     

The adaptive approach for storage assignment by mining data of warehouse management system for distribution centres

Among distribution centre operations, order picking has been reported to be the most labour-intensive activity. Sophisticated storage assignment policies adopted to reduce the travel distance of order picking have been explored in the literature. Unfortunately, previous research has been devoted to locating entire products from scratch. Instead, this study intends to propose an adaptive approach, a Data Mining-based Storage Assignment approach (DMSA), to find the optimal storage assignment for newly delivered products that need to be put away when there is vacant shelf space in a distribution centre. In the DMSA, a new association index (AIX) is developed to evaluate the fitness between the put away products and the unassigned storage locations by applying association rule mining. With AIX, the storage location assignment problem (SLAP) can be formulated and solved as a binary integer programming. To evaluate the performance of DMSA, a real-world order database of a distribution centre is obtained and used to compare the results from DMSA with a random assignment approach. It turns out that DMSA outperforms random assignment as the number of put away products and the proportion of put away products with high turnover rates increase.     

中国养老金隐性债务的模型分析与偿还对策研究

能否解决养老金隐性债务是养老保险制度改革成功的关键性问题。基于养老金隐性债务的含义对养老金隐性债务的理论模型进行了修正与深化,对中国2005年～2050年养老金隐性债务的规模和变动趋势进行了预测与分析,并提出解决弥补隐性债务的综合性方案。     

Kantian Equilibrium

Consider a game whose strategies are "contributions". A strategy profile is a Kantian equilibrium if  no  player would like  all  players to alter their contributions by the  same multiplicative factor.  Kantian equilibria are Pareto efficient. We characterize the allocation rules on several domains of environments that can be implemented as Kantian equilibria. The concept unifies the  proportional solution  on production economies and the  linear cost-share equilibrium  on public-good economies. We study Kantian equilibrium in the prisoner's dilemma, in a voting problem, and in a political economy where redistribution is the issue. The Kantian dictum engenders considerable but not unqualified cooperation.     

高瓦斯无双巷前进式采煤探讨

高瓦斯前进式采煤有效地解决了高瓦斯工作面上转角瓦斯易积聚问题,降低了矿井掘进率,缓解了衰老矿井采煤工作面的接续紧张的状况,可实现煤岩分运,减少煤炭损失。     

浅议煤矿采矿作业事故的原因及对策

煤矿采矿事故多发,已经成为社会的热点话题,也成为威胁社会和谐发展的重要因素之一。本文首先介绍了一下煤矿采矿事故的梗概,结合其原因,详细阐释了煤矿采矿作业事故的对策。     

习惯性违章行为的调查与对策研究

小漏洞存在大隐患,习惯性违章都是出在一些细节上的问题,从而导致事故的发生。习惯性违章为何屡禁不止,本文通过对操作员工的习惯性违章行为的调查,研究分析在习惯性违章行为发生时员工的心理状态等因素,从理论的角度阐述习惯性违章的特点和根源,提出预防习惯性违章的措施和对策,预防事故的发生。     

对煤矿企业工会工作方法的改革与创新

现阶段,我国的煤矿企业的改制工作不断推广,企业的工会工作的方法、内容、目的以及对象都发生了很大的变化。本文对于煤矿企业工会工作方法的改革与创新进行了分析与探讨。