我国中部地区创新方法推广应用现状与对策研究——以湖北省为例

本文以湖北省为例研究我国中部地区创新方法推广应用现状，在分析总结湖北省创新方法工作主要经验和现有问题基础上，从政策导向、示范推广、市场运营、基础研究 4 个方面提出针对性建设建议，以期为中部地区的创新方法推广应用工作提供政策参考。     

Neighborhood Effects and Regional Poverty Traps in Rural China

The present paper investigates how neighborhood effects are connected to chronic poverty. We examine a large sample of groups of households and find that neighborhood effects are significant in a majority of groups, especially in the poorest groups. People living in poor communities tend to suffer from poverty over time. It is of theoretical and empirical importance to explore how neighborhood effects are interrelated with chronic poverty and the channels through which this occurs. Unlike other econometric analyses, we establish a multilevel econometric model to show that： （i） it is difficult for an individual living in a neighborhood with a high proportion of agricultural labor, low education levels, and poor transport and telecommunication infrastructure to escape from poverty traps; （ii） neighborhood effects dominate in poor communities; and （iii） although poverty is affected by group-level factors, individual factors still play a dominant role in regards to escaping poverty when income surpasses a threshold level Therefore, policy priority should be given to providing social protection and public services, especially in poor rural areas.     

应用皮肤光毒性实验仪进行化妆品皮肤光毒性试验的研究

[目的]探讨应用皮肤光毒性实验仪进行化妆品皮肤光毒性试验的试验条件和阳性对照物8-MOP的合适试验浓度。[方法]观测皮肤光毒性实验仪的UVA光强度与开机时间的关系,并根据测得的光强度平均值计算得出光毒性试验所需的照射时间;用不同浓度的8-MOP进行试验,排除8-MOP的原发性刺激作用,选择适宜的应用浓度进行皮肤光毒性试验;对两个防晒粉底按所选仪器条件进行试验。[结果]照射开始后2-100m in,UVA光强度稳定在4.3-4.4 mW/cm^2,平均值为4.4 mW/cm^2,故试验时的照射时间为38m in;用皮肤光毒性实验仪进行光毒性试验,0.05%8-MOP能引起豚鼠皮肤明显光毒性反应并且不引起原发性刺激反应;相同试验条件下未见两种防晒粉底引起豚鼠皮肤显著光毒性反应。[结论]用皮肤光毒性实验仪进行化妆品皮肤光毒性试验可行、有效。     

Resource abundance and economic growth in China

This paper revisits the resource curse phenomenon in China and differs from the previous studies in four respects: (i) City-level data is used; (ii) A spatial variable is constructed to estimate the diffusion effect of natural resources among cities in the same province; (iii) The impact of resource abundance on economic development is investigated not only at the city level but also at the prefectural level in China; (iv) We use a functional coefficient regression model to deal with city-specific heterogeneity and, at the same time, analyze the transmission mechanism of the resource curse phenomenon. Our empirical results show that there is no significant evidence to support the existence of a resource curse phenomenon in China. On the other hand, we find that the degree of natural resource abundance in a city has a positive diffusion effect on the economic growth of neighboring cities within the same province at the city level, but not at prefectural levels. We attribute this to the urban bias policy.     

对我国西三角经济区县域特色产业发展的探究

西三角地区的经济发展对于我国西部大开发的成功具有举足轻重的作用,而特色产业作为一种具有高效联动作用的产业集群,对带动区域经济的发展十分重要。本文从该地区县域内特色产业发展的现状入手,在分析县域特色产业发展中取得的成绩和经验,独特的发展思路以及发展中存在问题的基础上,提出适合西三角地区县域特色产业发展的有效途径和可行的发展模式。     

我国财政社会保障支出的差异与结构:1998～2009年

利用1998～2009年的统计数据,考察我国财政社会保障支出的总量变化和结构演进。研究显示:我国的财政社会保障支出在1998年以后出现明显上升,但总体水平仍相对滞后;对社会保障的各种补助支出已成为财政社会保障支出中最主要的组成部分;我国的财政社会保障支出存在着明显的地区差距和城市偏向。应着力提高社会保障支出占公共财政的比例,优化财政社会保障支出的项目结构等,确保财政社会保障的顺利开展。     

艺术类高职学院计算机基础教学模式的探索与思考

深化高职计算机基础教学的改革,必须首先从高职计算机基础教学模式和教材模式改革入手。本文简要阐述了关于艺术类高职学院计算机基础教学模式的思考。     

递增阶梯定价:一个综述

作为较独特的非线性定价,递增阶梯定价使消费者预算凸边界非光滑,进而导致某些消费者消费决策异度集中而难以甄别。此特征致使递增阶梯定价机制的理论和实证研究非常复杂。鉴于公共资源的特殊性,公共资源定价需要合理地兼顾效率、社会公正和成本完全补偿原则。在多元化目标角度上,本文初步验证了递增阶梯定价机制的最优性,虽然此最优性受制于接入率和特征信息等假定。递增阶梯定价下的需求设定趋于统一但估计方法却趋于复杂化和多样化。关于递增阶梯定价下的(价格和收入)需求效应明显与否的问题存在完全相反的结果,实证研究和理论对其不一致性给出多种解释和探讨。这种差异性可能由于消费者对价格、价格设计者对家庭特征等信息不完全,还可能因为各实证分析结果中的时间、市场或产品特征维度含义差异所致。基于多元化目标和资源特性的递增阶梯定价机制的设计和执行问题,将成为递增阶梯定价理论研究发展的一大方向。     

浅谈我国会计监督存在的问题及对策

随着我国市场经济的快速发展,合理规范会计行为,加强会计监督已成为社会经济可持续发展的一项重要内容.本文就我国会计监督中存在的问题进行分析,并建议性的提出解决问题的有效对策.     

WIC Participation and Relative Quality of Household Food Purchases: Evidence from FoodAPS

We examine the effect of the Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) on the quality of household food purchases using the National Household Food Acquisition and Purchase Survey (FoodAPS) and propensity score matching. A healthy purchasing index (HPI) is used to measure nutritional quality of household food purchases. WIC foods explain the improvement in quality of food purchases, not self‐selection of more nutrition‐conscious households into the program. The improvement in purchase quality was driven entirely by WIC participating households who redeemed WIC foods during the interview week. There was no significant difference between WIC participants who did not redeem WIC foods and eligible nonparticipants. In this sample, there is no evidence that lack of access to clinics has adverse effects on participation nor is there evidence that HPI depends on supermarket access. A supervised machine learning process supports our main conclusion on the importance of WIC foods.