技术服务企业实施QHSE管理体系的探讨

QHSE管理体系是质量、健康、安全、环境为一体的管理模式。该管理体系的建立使企业内的职责和权限更明确、清晰．为企业节省了大量的审核时间及审核经费，为企业带来了经济效益。结合企业管理现状，通过对管理体系的具体分析．提出企业实施QHSE管理体系的几点建议。     

Oil shocks,policy uncertainty and earnings surprises

The study utilizes a structural VAR model to understand the connections among oil shocks, policy uncertainty and aggregate earnings in US. We find that the positive innovations in US oil supply increase the aggregate earnings. A rise in the US policy uncertainty decreases the aggregate earnings. After 2007 with the shale oil development in US, the earnings responses to the US oil supply shocks has increased. Over time shocks to US oil supply reduce the policy uncertainty. The development of US oil production is associated with the increase in income and the enhancement on political and economy security in US. Policy uncertainty plays an important role in the transmission of oil shocks to the earnings. The structural oil price shocks explain around 35% of the overall variations in the policy uncertainty in the long run and cause long swings in the policy uncertainty. The direct effects of oil shocks on the aggregate earnings are amplified by the endogenous responses of policy uncertainty.     

New development: Unified scores of governance capacity using a Bayesian latent variable analysis

A plethora of governance measures has been developed to assess governance capacity in different countries. Choosing one indicator over another involves discretionary decision issues. This article presents a new unified measure of governance capacity for the administrative and political dimensions. The unified measure provides a more accurate understanding of governance than single indices.     

人才培养目标与教学管理水平的关系整合——以高职土建类专业为例

高职土建类专业人才培养目标与教学管理有着密切的关系。教学管理对人才培养目标的实现产生多方面的影响,主要体现在目标管理、过程管理、绩效管理三个方面,在明确学生学习目标、激励学生学习动力、调动学生学习积极性、引导学生全面发展等方面具有举足轻重的作用。为了更好地实现人才培养目标,应实现教学管理重心从传统的过程管理向目标管理和绩效管理的根本性转变。     

How about selling commodity futures losers?

This paper explores the benefits of extending the investment universe to commodity futures, from the perspective of momentum traders. We find that the growth-optimal portfolio includes negative (positive) weights on commodity futures losers (stock winners). Motivated by this finding, we construct a joint momentum strategy, buying stock winners and selling commodity futures losers, and show that it generates an average monthly return of up to 1.91% and provides much lower skewness (0.04) and kurtosis (1.27) than a traditional stock momentum strategy. It also greatly improves profitability, especially in unfavorable market states, and thus effectively manages tail risk.     

Analysis and design of microfinance services: A case of ROSCA

Rotating savings and credit association (ROSCA) is a well-known microfinance association widely used in many countries around the world with long histories. By considering extra profits that such a system can provide when compared to banking transactions, we develop optimization problems to achieve an optimal design of a ROSCA. We find that ROSCAs might attract investors when deposit and loan rates from formal banking systems are not favorable. Furthermore, optimal rates and optimal orders to maximize system outputs are reported.     

影响酒精酵母发酵效果的因素研究

酒精酵母发酵作为现代工业的一个重要指标,酒精酵母的发酵效果也受到了人们的重视。在同样的条件下使酒精酵母拥有更好的发酵效果是工业造酒想要达到的目标。通过实验来探究在酒精酵母发酵过程中影响其生长速度与繁殖的因素。酒精发酵过程中蔗糖会分解成果糖和葡萄糖,酵母发酵过程中首先利用葡萄糖而后利用果糖,果糖就会成为残留物,使得其产生差异性。通过实验发现影响酒精酵母发酵效果的因素有温度、通风、pH、尿素、糖比例等。     

New development: Fiscal reform in South Korea: looking back and moving forward

ABSTRACT

At first glance, it seems that South Korea’s three fiscal systems (mid-term expenditure framework, top-down budgeting, and performance management) function well. However, each fiscal system operates separately and they are inefficient because they follow past practices. This article explains what the problems are and how to overcome them.