收入分配与地下经济的相关关系分析

随着我国改革开放的深入和力度的加强、收入多元化发展 ,在经济发展的同时 ,我国的收入分配差距逐渐扩大 ;同时 ,由计划经济向市场经济的转轨 ,我国地下经济出现了迅猛的增长势头。运用计量经济学中的Granger因果关系检验对两者进行检验 ,证明了我国地下经济和收入分配是互为因果关系的 ,在对两者相关关系的深入分析中找出既能有效遏制地下经济又能减小收入差距的解决办法是当前的重要任务     

生育率转变过程中家庭子女性别结构的变化－对人口出生性别比偏高的另一种思考

从新的角度对中国人口出生性别比持续偏高现象的原因与表现进行了分析。指出,人口（生育率下降）与社会（生育中的“性别偏好”）因素均对人口性别结构的变化产生影响。妇女曾生（或存活）子女性别比偏离正常值和具有不同孩子性别组合的家庭分布与构成发生变化,是人口出生性别比失常的另一类“积累性”和“后果性”表现。同时,它们具有方法论意义。     

基于JIT思想对汽车玻璃生产线WIP的控制策略

本文分析了汽车玻璃加工生产线的生产流程,生产车间不同种类的在制品(WIP)数量很庞大,为此研究生产线的瓶颈工序,得到瓶颈工序生产线的切换时间对WIP库存的影响,研究生产线的切换时间、工序之间的生产节拍比和WIP库存数三者之间的关系,结合JIT和WIP库存控制策略来保证生产线的流畅生产,归纳出关键的工序节拍比下所需的WIP库存数的动态变化情况,从而动态地控制WIP库存的变化并最大程度地降低车间的WIP库存。     

催化剂制备方法和反应条件对CO偶联合成草酸二甲酯反应性能的影响

采用络合物与Pd形成配体的方式和碱溶液与Pd形成沉淀的方式考察组分的添加方式的影响,考察了反应温度和原料气配比对CO偶联合成草酸二甲酯催化剂性能的影响。结果表明,用碱洗的方式能够提高催化剂的反应性能,原料气配比对催化剂性能影响较大。在反应温度140℃,CO与亚硝酸甲酯的比例为1.25条件下,草酸二甲酯的收率可以达到1.13 g/mL.h。     

高层剪力墙施工技术要点研究

随着高层建筑的增多,建筑施工质量引起人们的热切关注,本文结合高层施工中钢筋工程、模板工程的建筑要素,深入探讨高层剪力墙在施工过程中的技术要点,进一步提高高层建筑施工的水平。     

基于模糊相似优先比法的高校教学团队成员选择

一个稳定的高校教学团队既可以增加成员的凝聚力,也可以帮助团队成员多出教学成果,提高教学质量。但是如何选择合适的团队成员一直是高校教学团队构建过程中所面临的的一个难题。本文运用模糊相似优先比法对某个教学单位中成员进行识别,在此基础上选择适合于组建教学团队的成员。研究结果表明,该方法适合于团队工作成员的有效识别工作,为团队组建者的教学团队组建提供了一种有效的方法。     

Capital account flows,consumption ratios and the middle‐income trap

The existing literature suggests that it is important to understand the factors that may slow the transition of an economy from middle to high income. Many factors have been suggested as promoting or retarding economic growth, but little attention has been paid to the roles of the capital account and consumption ratio. Using panel regressions involving 48 countries over the 1950–2013 period as well as employing extreme bounds analysis, we find that foreign investment outflows are associated with a mature economy and that there is an optimal consumption ratio that must be surpassed to break out of middle‐income status. These findings are robust to an extreme bounds analysis incorporating a wide range of variables potentially related to growth performance.     

Optimal rebalance rules for the constant proportion portfolio insurance strategy – Evidence from China

The constant proportion portfolio insurance (CPPI) strategy is one of the most popular asset allocation strategies employed by guaranteed-return financial products investors. Rebalance disciplines play an important role in determining the CPPI performance in practice. This paper examines whether the selection of rebalance rules affects CPPI strategy performance in the context of Chinese equity markets and, if so, in what pattern, and whether an optimal parameter of rebalance exists. We find that, (1) the three alternative rebalance disciplines – time discipline, market move discipline and lag discipline – are indifferent in affecting the performance of CPPI strategy; (2) in terms of optimal parameters of each rebalance rule, the optimal rebalancing period for the time discipline is 3 trading days, the optimal trading threshold of the market move discipline 4%, and the optimal lag factor of the lag discipline 6%. These optimal parameters are not influenced by the length of investment.     

Comparative randomized inverse sampling

According to previous literature, we define randomized inverse sampling for comparing two treatments with respect to a binary response as the sampling that stops when a total fixed number of successes, irrespective of the treatments, are observed. We have obtained elsewhere the asymptotic distributions for the counting variables involved and have shown them to be equivalent to the corresponding asymptotic distributions for multinomial sampling. In this paper, we start deriving the same basic results using different techniques, and we then show how they give rise to genuinely novel procedures when translated into finite sample approximations. As the main example, a novel confidence interval for the logarithm of the odds ratio of two success probabilities can be constructed in the case of comparative randomized inverse sampling. Some advantages over the standard multinomial sampling in terms of coverage probabilities are visible when no adjustment for cells with zero counts is applied; otherwise, the two sampling schemes appear to be fairly equivalent. This is a reassurance that under certain circumstances, inverse sampling can be safely chosen over more traditional sampling schemes.