A model of tourism advertising effects

This study develops the AIEDA tourism advertising effects model and examines this model by tourism destination types and advertising formats in a field experiment. The AIEDA model extends the traditional AIDA model in the advertising field and additionally considers the unique features of tourism products. It includes five hierarchical stages: Attention→ Interest→Evaluation (Perceived Usefulness→ Perceived Credibility) → Desire →Action. Findings of experimental research indicate that destination type and advertising format have main effects and interaction effects on tourism advertising effects. In addition, this study discovered that, for natural and cultural destinations, video ads yielded similar or more positive advertising effects than virtual reality ads, whereas print was the least effective advertising format.     

政治体制上端改革:反腐败斗争的迫切需要

我国的反腐败已经进入了一个特殊的高原期,能否实现政治体制上端的重大改革,是决定中国反腐败能否实现突破的关键。政治体制上端改革要坚持三个不动摇、发展党内民主、完善人民代表大会制度和改革政党制度,可以建立"廉洁岛"式的政治特区。     

Cardinality-based equality of opportunities

We study possible rankings of opportunity profiles. An opportunity profile is a list of opportunity sets, one for each agent in the society. We compare profiles on the basis of the notion of “equality of opportunities”. Our main results show the necessary and sufficient conditions for this comparison to be made using exclusively the information provided by two cardinal measures: the number of common alternatives in all sets of a given profile and the difference between the number of alternatives in the individual sets. We also show that, under additional axioms, we can combine these criteria only in a weighted procedure or in some lexicographic refinements of a weighted procedure.      

灰色数学模型及其在矿床勘探类型划分中的应用

本文运用灰色系统理论中的灰色聚类数学模型,对四个金矿床勘探类型进行了划分,取得了比较满意的效果。     

我国增值税类型选择的经济学思考

增值税有生产型、消费型和收入型三种.1994年我国税制改革选择了生产型增值税,对抑制投资膨胀,保证财政收入起到积极作用.随着市场经济的深入发展,我国税制改革应取向于消费型增值税,因其能避免重复征税而有利于分工协作,刺激投资,保护基础产业的发展.     

Pitfalls of Normal-Gamma Stochastic Frontier Models

Although conceptually pleasing, normal-gamma frontier models lead to difficult estimation problems. It is shown here that unless the sample size reaches several thousands of observations the shape parameter of the gamma density is hard to estimate, and that this carries over to estimates of the stochastic frontier, the individual inefficiencies, and the allocation of the overall variance to the stochastic frontier and to the inefficiencies.     

对融资制度与企业融资行为选择的思考

比较国际上两种主要融资制度绩效,实证分析我国的融资制度,仍存在着一定程度的扭曲,距离真正市场化有差距,成因在于融资制度本身的内部结构缺陷和外部宏观环境改革滞后,根源在于银企都不是真正的融资主体,导致企业融资行为出现变异.鉴于融资制度同企业融资行为模式存在内生一致性,推进政府的经济、金融制度改革,实现企业融资行为的合理回归,使之朝着以银行中介为主的融资模式向以股票市场股权融资为主的融资模式转换,才是中国企业融资行为模式的理性选择.     

民间组织管理制度的经济学分析

我国现行的"管制型"民间组织管理模式不利于民间组织的发展。通过比较现行管理制度下的成本与收益发现,要推动民间组织管理制度的变革,建立和谐的国家与社会关系,必须放松对民间组织的控制。     

民间统计组织管理模式

最近几年，民间统计组织在中国已取得了快速的发展，它具有三种管理模式：完全不管、完全管制和适当管制。随着民间统计组织的发展、成熟和完善，政府应转变自己的角色和功能，应从“管理者”转变成“服务者”，并用“服务”模式取代“管制”模式。     

低压供电线路电压损耗的简便校验

为了确保低压供电线路的供电质量,本文就低压配电线路未端,包括地埋、架空户内干线、支线的电压校验问题,提供简单易行的估算方法,对低压供电线路电压质量的校验通过简单四则运算,判别电压质量是否符合要求.