搜索结果: 121-135 共查到“知识库 管理经济学”相关记录459条 . 查询时间(1.763 秒)
MEASURING AND EXPLAINING MANAGEMENT PRACTICES ACROSS FIRMS AND COUNTRIES
MEASURING AND EXPLAINING MANAGEMENT PRACTICES ACROSS FIRMS AND COUNTRIES
2015/7/15
We use an innovative survey tool to collect management practice data from 732 medium-sized firms in the United States, France, Germany, and the United Kingdom. These measures of managerial practice ar...
The Impact of Competition on Management Quality:Evidence from Public Hospitals
Management Hospitals Competition Productivity
2015/7/15
We analyse the causal impact of competition on managerial quality and hospital performance. To address the endogeneity of market structure we analyse the English public hospital sector where entry and...
DOES WORKING FROM HOME WORK? EVIDENCE FROM A CHINESE EXPERIMENT
HOME WORK CHINESE EXPERIMENT
2015/7/15
A rising share of employees now regularly engage in working from home (WFH), but there are concerns this can lead to “shirking from home.”We report the results of a WFH experiment at Ctrip, a 16,000-e...
应对突发事件的库存共享策略
应急管理 库存共享 纳什均衡
2015/6/25
以包含两个销售商的库存系统为例,构建了一个描述库存共享应对突发事件的非合作博弈模型,证明了其纳什均衡解是唯一存在的。研究结果显示库存共享策略总有可能使得销售商的期望利润得以改进。另外,比较静态分析反映了转载价格和转载成本显著影响库存共享销售商的最优订货量和最优期望利润。最后,提出了一个简单的求解模型纳什均衡解的启发式算法。
客户时间窗变化的物流配送干扰管理模型——基于行为的视角
干扰管理 前景理论 多目标优化
2015/6/25
针对客户时间窗变化而导致的物流配送难以顺利实施这一难题,运用干扰管理思想,以提高物流配送干扰管理决策过程的科学性为目标,结合行为科学中对人的行为感知的研究方法与运筹学中定量的研究手段,分析客户时间窗变化这类干扰事件对客户、物流配送运营商和配送业务员等受扰主体的影响,研究基于行为的扰动度量方法, 构建客户时间窗变化的字典序多目标干扰管理模型,并给出快速高效的求解方法。实例结果表明:本文方法比已有的全...
成本推动、需求拉动——什么推动了中国房价上涨
房价 成本推动 需求拉动
2015/6/25
本文以我国房价上涨的成因为切入点,通过构建房地产生产者利润最大化和消费者效用最大化的局部均衡模型,并利用我国2002-2011年的分省面板数据分解出成本、需求和非市场因素在不同时间段和不同地区对我国房地产价格的拉动程度,揭示出我国房地产价格上涨的原因。研究发现,在我国"房价较快增长地区",具有明显的需求拉动型特征,且市场预期因素明显;在我国部分"房价较慢增长地区",房价上涨的成本推动特征明显;金融...
具有多元马氏需求的多产品多阶段库存优化模型
多元马尔可夫模型 最优(Q, R, SS)策略
2015/6/25
本文研究一类新的多产品库存控制策略,即具有多元马氏需求特征的多产品多阶段的订货点订货量(Q, R, SS)策略,该策略考虑市场需求在不同产品之间具有多元马氏转移特征,并考虑缺货因素设置安全库存。论文首先建立了多产品多阶段的多元马氏需求预测模型,并通过该模型确定了各种产品需求之间的关系。同时,在该模型的理论基础上,提出了多产品多阶段的总期望成本模型及其最优(Q, R, SS)策略,进而结合算例给出模...
与传统文献将风险下降比率作为风险对冲效率指标不同,本文引入期望效用理论来比较最小方差对冲策略、最小在险价值(VaR)对冲策略和最小条件在险价值(CVaR)对冲策略的对冲效率,从而将人们的风险态度同对冲策略选择联系起来,以实现不同风险态度的投资者选择不同风险对冲策略的目的。借用风险中性效用函数、二次效用函数和CARA效用函数,本文严格证明:在这三种对冲策略中,最小方差对冲策略过于保守,最小VaR对冲...
本文基于半鞅过程和非参数统计推断方法,利用已实现幂变差的渐进统计特性,构造检验统计量,在统一的分析框架下,对金融资产价格中随机波动、跳跃和微观结构噪声等问题进行全面系统的研究。并根据上海证券交易所不同行业的股票,上证50 股票指数及其成分股的高频数据进行实证研究。结果表明,我国A 股市场中,噪音交易显著;约43%的风险来源于资产收益过程的随机波动风险,可用股票期权交易对冲;不同来源风险的重要性程度...
研究了小额贷款公司对客户进行信用风险评估时面临的问题,构建了信用风险评估指标体系,改进了支持向量机(Support Vector Machine, SVM)对非均衡样本分类时分类超平面偏移的不足。首先分析小额贷款公司业务区域性强、信用数据来源不规范、评价标准不一致等特点,给出用于客户信用风险评估的四个维度指标。针对传统SMOTE算法在处理非均衡数据时对全部少数类样本操作的问题,提出仅对错分样本人工...
Observations on Innovation in Pension Fund Management in the Impending Future
Innovation and Invention Compensation and Benefits Investment Management
2015/5/14
Observations on Innovation in Pension Fund Management in the Impending Future.
Brides for Sale:Cross-Border Marriages and Female Immigration
Immigration Gender Characteristics Developing Countries and Economies Education
2015/4/27
Every year, a large number of women migrate as brides from developing countries to developed countries in East Asia. This phenomenon virtually did not exist in the early 1990s, but foreign brides curr...
From Social Control to Financial Economics: The Linked Ecologies of Economics and Business in Twentieth Century America
Economics Practice Business Education Labor and Management Relations Decision Making
2015/4/24
As the main producers of managerial elites, business schools represent strategic research sites for understanding the formation of economic practices and representations. This article draws on histori...
Big BRICs,Weak Foundations:The Beginning of Public Elementary Education in Brazil,Russia,India,and China
Developing Countries and Economies Economic Growth Early Childhood Education Government and Politics Wealth and Poverty China India Russia Brazil
2015/4/24
Our paper provides a comparative perspective on the development of public primary education in four of the largest developing economies circa 1910: Brazil, Russia, India and China (BRIC). These four c...
On Good Scholarship,Goal Setting,and Scholars Gone Wild
Education Goals and Objectives Management Practices and Processes Performance Improvement Research Motivation and Incentives
2015/4/23
In this article, we define good scholarship, highlight our points of disagreement with Locke and Latham (2009), and call for further academic research to examine the full range of goal setting's effec...