我国出租车牌照拍卖机制研究

论文以有效分配、促进竞争、实现经济价值为目标，建立了公开升价拍卖+密封拍卖的两阶段牌照拍卖模型，证明了其有效性和最优性。并以北京市为例讨论了牌照数量的确定、进入密封拍卖阶段的时机和牌照的流通等实际问题。这些讨论将有利于拍卖机制在现实中的操作实施。     

传统型美术专业在应用型本科院校中的生存与发展

传统型美术专业是否真的具有培养应用型人才的能力，是值得思考的问题。大众化教育是我国高等教育的新局面，但应用型本科院校中的传统美术专业却逐渐变为冷门。课程改革的迟缓、生源数量的减少、校地合作的局限性等问题，一直困扰着传统型美术专业。如何能够向应用型教育模式转变，是扭转此番尴尬局面的关键。     

Cost-effectiveness analysis of ramucirumab treatment for patients with hepatocellular carcinoma who progressed on sorafenib with α-fetoprotein concentrations of at least 400 ng/ml

Abstract

Objective: This study aimed to compare the cost-effectiveness of ramucirumab versus placebo for patients with hepatocellular carcinoma who progressed on sorafenib with α-fetoprotein concentrations (AFP) of at least 400?ng/ml in the United States.

Methods: A Markov model was constructed to assess the cost-effectiveness of ramucirumab. Health outcomes were measured as quality-adjusted life years (QALYs). With TreeAge software, the disease process was modeled as three health states: progression-free survival (PFS), progressive disease (PD), and death. Costs were extracted from the REACH-2 trial, and utility was derived from published literature. Incremental cost-effectiveness ratios (ICERs) were calculated to compare ramucirumab with placebo. Probabilistic sensitivity analyses were developed to examine the robustness of the results.

Results: In the base case analysis, ramucirumab therapy had a cost of $55,508.41 and generated 0.54 QALYs, while placebo therapy had a cost of $761.09 and generated 0.47 QALYs, leading to an additional $54,747.32 in costs and 0.07 QALYs. The ICER was $782,104.57 per QALY, which was much higher than the willingness-to-pay threshold of $100,000 per QALY. According to sensitivity analyses, the utility of PD in the two groups was the dominant parameter influencing the ICER.

Conclusion: Although ramucirumab was associated with prolonged survival for patients with advanced hepatocellular carcinoma who progressed on sorafenib treatment with an AFP of at least 400?ng/ml, it is not a cost-effective treatment from a United States payer perspective.     

Foreign Ownership Restriction and Momentum – Evidence from Emerging Markets

This study investigates the impact of foreign investors on stock price efficiency and return predictability in emerging markets. It finds that stocks fully investible for foreign investors exhibit stronger price momentum than non‐investible stocks. The difference in momentum effects between stocks with different levels of investibility cannot be fully explained by world market risk, size, turnover, or country‐specific factors. Further tests show that fully investible stocks have no post‐earnings‐announcement drift (PEAD), and their short‐term momentum reverses over a longer horizon. These results show that the stronger momentum of highly investible stocks does not appear to be driven by foreign investors' underreaction to firm‐specific information, but is more likely to be generated by their positive feedback trading.     

消费者生活方式与物质主义价值观的相关性研究

本文主要研究生活方式与物质主义价值观的相关关系。基于495位消费者的问卷调查数据，借助因子分析方法，探索出11个生活方式因子，利用这11个因子进行聚类分析，将调查样本划分为5个子市场。随后，用方差分析法分析得出结果：5个子市场在物质主义价值观上有显著性差异，并用最小显著差异法进行两两比较，确认了具有不同生活方式的消费者在物质主义价值观上的差别。     

Revisiting Border Effect: Evidence from Taobao.com in China

Inherent home bias and trade barriers (particularly local protectionism in China), which are difficult to separate, are two main explanations of border effect. We attempt to solve this problem by analyzing online trade. Different from offline trade, inherent home bias is the only cause of online border effect because local governments are usually unable to restrict online trade. Thus, the difference between the border effect in online and offline trade can be reasonably interpreted as the existence of government protectionism in the offline market. We find a statistically significant difference between online and offline border effects in China, which can be interpreted as strong evidence that policy barriers remain significant and hinder interregional trade.     

我国信息产业与经济增长的协整分析

本文运用协整理论的EG两步法、格兰杰因果检验,以及回归估计方法对我国信息产业与经济增长关系进行了深入分析。研究发现我国信息产业与经济增长有长期稳定的均衡关系,信息产业对我国经济增长有显著的促进作用,而经济增长对拉动信息产业的作用在中期(2～4年)内有一定效果,在短期(1年)和长期(5年及以上)内则并不显著,并针对这些结论提出相关政策和发展建议。     

一种有限元并行共轭梯度算法在计算力学中的应用

本文以POSSION方程为研究背景,实现了有限元的并行计算.通过对定解区域进行特殊的划分,达到了不需合成结构刚度矩阵的目的,并在此基础上应用线性方程组的共轭梯度法,使计算的并行性得到了很好的拓展,实现了从网格划分、刚度矩阵的合成到方程求解的并行执行.并将该算法应用在计算力学中.程序在西北工业大学高性能计算中心的HPRX2600上进行了数值实验,结果表明,该方法具有良好的加速比.     

浅谈会计电算化与应用

二十一世纪中国经济的全面崛起,将使中国完全可能成为新兴的世界强国,"中国崛起"已经无可争议地成为了当今全球的主题.很多大企业甚至不那么大的企业都真正走出去,在世界各地做自己的生意,在世界各地都有自己的管理者、自己的股东、供应商和客户,他们真正成为了全球化的企业.各种现代化手段广泛应用于企业管理和经营中,不但节省了资源,还达到了事半功倍的效果.本丈通过对企业会计电算化的介绍,分析和阐述了会计电算化的特点作用以及一些现代化的管理软件在会计电算化中的应用.