＂十一五＂期间电网工程造价管理综述

回顾了“十一五”期间电网工程造价管理体系、管理模式、管理手段,深入研究了项目前期管理、初步设计及概算管理、招投标管理、设计变更管理、合同管理、结算管理等造价控制关键环节的造价控制要点和各控制要点的工作流程。通过全面系统地总结“十一五”期间电网工程造价管理取得的成绩,以期为“十二五”期间的电网工程造价管理提供经验。     

基于STR模型的中国宏观经济 周期拐点的识别与预测

本文应用平滑转换模型（STR）对我国经济周期的运行特点及拐点识别进行深入研究,并成功识别出经济周期拐点。研究发现我国GDP机制转换发生在自身滞后1期,增长率96%是扩张与收缩的临界点;固定投资机制转换发生在自身的滞后4期,增长率19%是扩张与收缩的临界点;固定资产投资对GDP的拉动效应具有较为缓慢的调整特征和滞后效应,机制转换发生在固定资产投资的滞后2期。     

后金融危机时代的“刘易斯拐点”和金融改革

国际金融危机推动全球经济进入再平衡过程。后金融危机代的外部环境对我国过去的经济发展模式和金融体系形成严峻挑战,济转型和金融改革势在必行。"刘易斯拐点"的到来和劳动力成本上升显著减轻就业压力,修复我国内、外部经济失衡,推动增长模式转变和济结构调整,并释放包括汇率制度、利率政策在内的金融业的改革空间。     

我国企业内部控制制度建设的若干思考

文章首先论述了企业内部控制制度的构成要素、目标,国外企业内部控制制度及其对我国的启示,然后重点论述了我国企业内部控制建设必须逾越的四大难点。     

Does default point vary with firm size?

This article aims to improve the predictive ability of KMV model by distinguishing firm size. The evidence suggests that default point would vary with firm size. Using the method of particle swarm optimization, we obtain the optimal default point separately for large firms and small firms. Several statistical tests such as the model confidence set methodology show that our relatively tractable model is more likely to have the strongest predictive ability.     

Dynamic time series momentum of cryptocurrencies

This paper examines the momentum effect for twenty cryptocurrencies compared to the US stock market. For this purpose, we implement a dynamic modeling approach to define and test momentum periods that follow a formation period for interday and various intraday price levels. We find evidence that large proportions of the asset classes’ formation periods are followed by momentum periods, strongly supporting the momentum effect. In particular cryptocurrencies have significantly larger and longer momentum periods in all frequencies which we attribute to the lower derivability of their intrinsic value leading to a higher degree of noise traders in the market. A momentum trading strategy based on the identical approach outperforms a buy-hold strategy for both asset classes, while only cryptocurrencies have higher risk-adjusted returns and lower downside risks than a passive investment. We also find critical price levels during structural elements of the momentum period where the volatility shortly but intensively increases and consequently initiates a price impulse in the direction of the momentum.     

基于激光点云的高墩垂直度偏差分析方法

现代桥梁工程中高墩桥梁屡见不鲜,桥墩垂直度已成为评定桥墩施工质量的重要指标之一.以新疆某特大桥项目为依托,针对高墩垂直度检测结果实用性低的问题,提出一种采用三维激光扫描技术对高墩垂直度进行非接触测量分析的方法.利用三维激光扫描仪快速获取高墩结构全局点云信息,对桥墩点云进行拼接、降噪等预处理,采用编程算法实现了桥墩节段中心点和垂直度偏差的计算,并得到了垂直度偏差变化规律图.最后将该方法与传统方法进行对比.结果表明:利用三维激光扫描技术对高墩进行快速测量,能够获取桥墩中心轴线的三维空间线型,精确分析并定位最大偏差位置,显著提高垂直度测量结果的实用性,具有良好的工程应用前景,并为后续研究桥墩垂直度问题提供了新思路.     

ALICE: Composite leading indicators for euro area inflation cycles

This paper develops Area-wide Leading Inflation CyclE (ALICE) indicators with the aim to provide early signals for turning points in the euro area headline and core inflation cycles. The headline (core) ALICE leads the reference cycle by three (four) months and the lead times extend to five (nine) months based on longer-leading series. Both ALICE indicators signalled turning points in the inflation cycles ex post and also performed well in a simulated real-time exercise. Moreover, in particular the headline ALICE also appeared to be useful for quantitative forecasting of the direction and level of inflation.     

Self serving reference points in double auctions

We present a novel approach for modelling self serving bias by way of reference dependence. Bias is modelled as a systematic individual level deviation of the endogenous reference point from the expected price of a good in a two person k-double auction. We find that bias decreases the efficiency of the model, and that efficiency is decreasing in both the level of bias and reference dependence.