Tradeoffs between sensory attributes and organic labels: the case of orange juice

Researchers have investigated the role of sensory attributes and organic labels on consumers’ preferences and perceptions of food, but few has examined whether sensory attributes are relevant for consumers who prefer organic food and the extent to which sensory attributes influence consumer's marginal willingness to pay for organic food. The objective of this study is to determine how sensory attributes and organic label work together to influence consumer's stated preference and marginal willingness to pay for orange juice. To achieve this, we conducted a blind sensory evaluation of two orange juices followed by a discrete choice experiment to determine the extent to which consumer's stated preference for orange juice labelled as organic is affected by sensory experience preceding the choice experiment. Random parameter logit models and latent class conditional logit models are used to explain stated preference. Results indicate that the effect of sensory attributes on consumer's marginal willingness to pay differed by organic juice and conventional juice.     

Estimating SUR system with random coefficients: the unbalanced panel data case

A system of regression equations for analyzing panel data with random heterogeneity in intercepts and coefficients, and unbalanced panel data is considered. A maximum likelihood (ML) procedure for joint estimation of all parameters is described. Since its implementation for numerical computation is complicated, simplified procedures are presented. The simplifications essentially concern the estimation of the covariance matrices of the random coefficients. The application and ‘anatomy’ of the proposed algorithm for modified ML estimation are illustrated by using panel data for output, inputs and costs for 111 manufacturing firms observed up to 22 years.     

货币政策对房地产市场影响的地区差异分析

基于货币政策对中国房地产市场的调控效果存在地区间的现实差异,文章采用2006-2013年的月度数据,在讨论价格型与数量型货币政策的基础上,利用向量自回归（VAR）模型和脉冲响应函数,对中国东、中、西部区域层面的货币政策传导效果进行比较分析。研究结果表明：数量型货币政策对东部地区房地产市场的调控效果较其他两个地区更加明显,但长期数量型货币政策会导致房价上升。价格型货币政策对三个地区的影响趋势相近,并且价格型政策对各地区房地产市场的调控效果比数量型政策更有效。所以中国应差别对待各地区的政策调控,不可“一刀切”。     

The determinants of board size and independence: Evidence from China

China's corporate governance reform offers an interesting context for investigating the determinants of board size and independence. Analysing a large panel dataset from 1999 to 2003, we find that Chinese board size is primarily driven by firm complexity; board independence is mainly driven by regulation. Some governance factors newly introduced in this study also have a significant impact. For example, board independence is negatively associated with the size of supervisory board and state ownership. The findings have important implications and provide new insights into the subject.     

浅析在建筑施工中如何预防裂缝与渗漏的问题

分析在建筑施工中渗漏问题和裂缝问题产生的原因.并提出防治对策.     

培养旅游职业人才 注重行业诚信教育

在旅游业飞速发展的今天,在国际国内旅游大环境下,加强品牌意识,打造诚信旅游的呼声越来越高,因诚信而引起的旅游投诉所占的比例越来越高,旅游从业人员诚信素质不高等等一些现实问题期待诚信教育。旅游职业教育在诚信教育中应当首当其冲,加强旅游从业人员,特别是旅游第一线的工作人员诚信教育是旅游职业教育当中最重要的内容。本文以旅游职业诚信教育为脚本进行了初步研究。主要从旅游职业教育诚信教育面对的现状、存在问题和加强诚信教育的对策等方面综述了旅游职业人才培养的诚信教育。     

菱形挂篮在连续梁施工中的设计与检算

以京沪高速铁路某特大桥(48+80+48)m预应力混凝土连续箱梁为工程实例,介绍了菱形挂篮的设计与检算分析,可为类似工程提供经验。     

浅谈石油化工企业碱渣废水治理措施

简述石油化工行业高浓度碱渣污水的来源及成分,着重介绍不同碱渣污水处理工艺方案和工艺方案的对比。     

利率市场化:巨大的金融改革红利

如果按照国际上平均20年,最长23年(印度)的时间表粗略推算,存款利率的市场化会在未来3-5年内落地,如果结合中国在2020年之前实现资本账户开放,那么利率市场化也将在2015-2017年之间着陆。作为中国金融改革极度活跃与亢奋的领域——利率市场化不仅以自己独特的路线向着纵深领域展开着持续的延     

抗拔锚杆桩技术解决地下室抗浮

介绍地下室结构抗浮问题解决方法:采用抗拔锚杆桩施工技术的成功施工经验。