推进公平是市场经济体制下政府的重要职能

推进公平是政府在市场经济体制下必须履行的重要职能 ,政府推进公平是协调经济利益关系、维持社会稳定的需要 ,是提高效率的保证 ,是对“市场缺陷”的弥补。公平是发展社会主义市场经济的最终目标之一。政府干预市场是为了实现效率与公平的兼顾与协调。为防止两极分化 ,我国政府须在推进起点公平、结果公平、环境公平上应采取切实可行的措施。     

The relationship between paid work and parenthood--a comparison of structures,concepts and developments in the UK and Austria

This article investigates and compares the dominant concepts of public policy concerning the employment-parenthood interface in the UK and Austria. These two countries have been chosen because they represent very different public policy conceptions, particularly in approaching the work-family issue. In order to show the consequences of these policies the paper focuses on working time and time away from employment, when children are very young, and relates these aspects to currently introduced and changed regulatory structures, such as working time regulations and statutory parental leave. The active labour market and family policy in Austria, generally, supports the reconciliation of employment and parenthood. However, the Austrian work-family 'system' suffers from the underlying notion of the male breadwinner model in public support structures and low normative support of employed mothers. The cultural barriers for a more equal distribution of the burdens of combining employment and parenthood seem to be lower in the UK. The market as the political focus, in general, allows more equal opportunities for (qualified) women in the labour market and within families. But the highly flexible and polarised labour market, passive public policy and weak legal protection of employed parents creates a difficult relationship between paid work and family life for many parents, in particular for low-skilled, low-paid parents, above all mothers. These analyses provide the basis for conclusions for public policy aiming at the reconciliation of paid work and parenthood. Ce texte cherche à comparer les concepts dominants de la politique gouvernementale concernant l'interface travail-parent en Grande-Bretagne et en Autriche. Ces deux pays ont été choisis parce qu'ils présentent des concepts de politique gouvernementale très différents, en particulier en ce qui concerne la question de la famille et le travail. Ce texte montre les conséquences de la pratique de ces politiques sur le temps au travail rémunéréet le temps passé à l'extérieur de l'emploi ou sans emploi, et ce, dans un contexte o[ugrave] les enfants sont jeunes. Le texte fait la relation entre ces éléments et la pratique des structures de contrôle existantes et modifiées telles que les lois (ou: les règlements) sur le temps passéau travail et sur les congé parentaux. En général, le marché du travail et la politique de la famille en Autriche encourage la conciliation entre l'emploi et la responsabilité de parent. Par contre, ce système de travail- famille autrichien est un concept qui est fondé à la fois sur le modèle de l'homme comme fournisseur principal du revenu familial dans les structures de soutien public ainsi que sur normes de soutien peu élevées pour les mères employées. Les barrières culturelles face àune distribution plus égalitaire de la responsabilité travail-famille semblent être moins élevées en Grande-Bretagne. En général, le marché et la politique du marché du travail ont offerts plus d'opportunités aux femmes qualifiées. Mais la volatilité (et la polarisation) du marché du travail, la politique gouvernementale passive et la faible protection légale pour les parentstravailleurs créent tous une relation difficile pour les parents entre le travail rémunéré et la vie de famille--en particulier pour ceux qui sont moins qualifiés et mal rémunérés, dont surtout les mères de famille. Cette analyse nous guide vers la nécessité d'une politique gouvernementale qui vise la conciliation entre le travail rémunéré et la responsabilité parentale.     

社会主义市场经济与自由

社会主义市场经济体制的建立确保了经济自由的实现。这种自由表现为自由的经济主体。自由的生产、自由的交换、自由的消费等等。社会主义市场经济是实现人的自由的现实途径。     

Sampling Returns for Realized Variance Calculations: Tick Time or Transaction Time?

This article introduces a new model for transaction prices in the presence of market microstructure noise in order to study the properties of the price process on two different time scales, namely, transaction time where prices are sampled with every transaction and tick time where prices are sampled with every price change. Both sampling schemes have been used in the literature on realized variance, but a formal investigation into their properties has been lacking. Our empirical and theoretical results indicate that the return dynamics in transaction time are very different from those in tick time and the choice of sampling scheme can therefore have an important impact on the properties of realized variance. For RV we find that tick time sampling is superior to transaction time sampling in terms of mean-squared-error, especially when the level of noise, number of ticks, or the arrival frequency of efficient price moves is low. Importantly, we show that while the microstructure noise may appear close to IID in transaction time, in tick time it is highly dependent. As a result, bias correction procedures that rely on the noise being independent, can fail in tick time and are better implemented in transaction time.     

经济法与市场经济——对现代经济法的一种认识

经济法是现代市场经济发展到一定阶段出现政府干预失灵的特定历史下产生的法律部门和法律学科.它不仅是政府干预经济的有效手段,也是政府干预的约束和规范,是政府干预法治化和市场秩序优化的必然需求.同时,现代经济法法益保护也具有双重性既侧重于社会公共利益的保护,又兼顾市场经济个体私利的保护,实现社会公益和个体私益的最大协调和平衡.     

How can David orchestrate resources to enhance firm performance? A dynamic approach to coping with resource constraints

Given that the possession of abundant resources does not always guarantee superior firm performance, this study proposes a dynamic approach to enhancing firm value. Building on the resource orchestration thesis, we investigate how firms facing resource constraints enhance their capabilities over time by orchestrating resources and how this resource orchestration can play a role in improving firm performance. Using the dynamic perspective, this study identifies four resource orchestration modes, which are specified based on how a given firm dynamically allocates its resources to technology (enacted by R&D activities) and marketing (enacted by advertising activities). Accordingly, we claim that firms with resource constraints can enhance their performance by escalating or altering their resources over time. To test our hypotheses, we used a sample of 4078 small and medium-sized enterprises in manufacturing industries between 1984 and 2018. We found that focus escalation for technology positively affects firm performance, captured by Tobin's q, and that focus alternation toward either technology or market is positively related to firm performance. Finally, we discuss the theoretical and practical implications of our findings.     

用线性互补及二次规划理论分析市场均衡问题

本文讨论了一类完全竞争条件下的市场均衡问题,供给方的生产特征用线性规划模型进行刻划,市场需求函数源于一般经济意义下的模型,它是一系列相互独立的价格变量的函数．我们将此问题归结为线性互补问题,并依此讨论了均衡点的存在性．本文还讨论了一种用二次规划进行刻划的经济问题,并指出此二次规划的K－K－T条件等价于所讨论的线性互补问题．     

中国A、H股市场分割的根源分析

按照投资者的身份不同,中国的股票市场可分为A、B、H股三个市场,三个市场处于严重的分割状态,其最显著的表现就是A、B或A、H股双重上市公司股票的价差现象。本文拟以A、H双重上市股票为例,深入分析价差产生的原因,揭示中国股票市场分割产生的根源。     

社会服务供给集约化发展思路探索

针对我国目前社会服务供给主体发展现状和社会服务供给特性,结合市场集中度和集约化管理理论,分析我国社会服务供给主体存在的主要问题,论述社会服务供给市场集中度与社会服务供给集约化的关系,提出通过降低准入门槛、鼓励主体竞合、强化规模运营、培育大型主体、理顺主体关系、完善竞争机制及优化市场结构等策略与措施,来推动社会服务供给集约化管理。