辽宁棚户区改造:改变居住环境的综合整治与完善配套

辽宁棚户区的形成与其他国家的贫民住区不同,因此其改造模式也有别于其他国家或地区。从理论上分析,辽宁棚户区的改造基本符合经济学的外部性原理,特别是环境外部性。辽宁棚户区改造,实施了系统推进,对居住环境进行综合整治,完善了相关配套,改善了棚户区居民的居住条件。基础设施投入增加,改善了城市环境,体现了人与环境的和谐共赢。辽宁棚改不仅是民生工程,同时也是环境工程,在实践中形成了可借鉴的经验。     

《税务会计与纳税筹划》教材教法创新研究

原有《税务会计与纳税筹划》教材的内容和结构体系比较单薄,不能适用培养学生的创新能力和解决问题能力的要求。因此我们整合了原有知识内容,打破学科界限,把相关学科知识有机结合和综合运用,从税务理论角度重点突出提高学生的综合素养;从纳税筹划实务的角度重点突出对学生能力的培养。在教学中树立以学生为本的理念,将学生的知识学习与能力培养有机结合;将学生的被动学习转化为主动学习。     

When does perceived leader regulatory-focused modeling lead to subordinate creativity? The moderating role of job complexity

This study identified job complexity as a moderator that influences the relationship between perceived leader regulatory-focused modeling and followers' creativity. Using a sample of 340 employees and their supervisors from five Chinese companies, the authors found that (1) perceived leader role modeling (promotion-focused/prevention-focused) is related to followers' creativity and (2) job complexity moderates the relationship between perceived leader regulatory-focused modeling and creativity. The authors discussed implications of these results for research and practice.     

Individual well-being in urban China: The role of income expectations

Using household survey data, we study the determinants of individual well-being in urban China, emphasizing particularly the role of income expectations. First, we find that individual well-being increases contemporaneously with own income and decreases with community's average income, consistent with findings reported in previous studies. This result holds when we replace income with consumption and when we consider employment and health status of other family members. Second and more important, we find that income expectations have a positive and significant effect on individual well-being. This result is robust to alternative model specifications and to controls for optimistic personality. Instrumental variable estimates and endogeneity tests suggest that the positive relationship between well-being and income expectations is genuine. Our finding has the potential to explain why reported well-being has declined in China despite the spectacular economic growth in the past decades.     

浅谈“一村一品”的发展——以珠海市金湾区红旗镇广发村为例

本文通过珠海市金湾区红旗镇广发村“一村一品”的发展状况,探讨了“一村一品”这种农业经济模式发展过程中,政府的支持引导、土地流转、技术人才、相应的社会服务组织等,是“一村一品”发展的关键因素。     

The components of the bid‐ask spread: Evidence from the corn futures market

This article examines whether USDA announcements and commodity index fund rolling activity have an impact on liquidity costs, measured by the bid‐ask spread. Using Huang and Stoll's (1997) model of liquidity costs, we estimate whether changes to liquidity costs are driven by its adverse selection, inventory, or order processing components. Commodity index fund roll activity reduces the asymmetric information cost component of liquidity cost due to an increased proportion of noninformation‐based trading, but the inventory cost component increases as (mostly long only) commodity index funds sell their nearby positions and buy the first deferred contract—raising liquidity providers’ risk of building a position. The sum of these two effects is that liquidity costs remain low during index fund roll periods, averaging one “tick” (0.25 cents). On USDA report release days, we find that informed traders raise the asymmetric information component of liquidity costs in the first hour after release, but the inventory cost component is reduced due to the increase in volume. Similar to index fund roll activity, liquidity costs on USDA report release days remain low, averaging one “tick”. Our findings that liquidity costs are minimally changed during USDA report releases and commodity index fund roll periods is consistent with other recent research on liquidity costs, but we show that what drives liquidity costs differs substantially depending on the circumstances surrounding daily trading.     

活性氧化铝比表面积的测定方法

叙述了重量法BET装置的建立和比表面积的测定和"干燥器水法"测定干燥剂氧化铝的比表面积以及经典的氮吸附BET装置——ZXF-06型自动吸附仪,因为"干燥器水法"一次测定样品数量多,能满足生产的需要,这个方法从建立起一直应用至今,其测定的数据是精确的。总结了温州精晶氧化铝有限公司比表面积测定的进展。     

价值链中的博弈关系及合作因素分析

在供应链的合作关系中,双方的耐心程度,以及信任程度会影响双方的利益关系。本文通过博弈分析,指出它们的作用机制,并提出一些建议。     

中国新能源企业政府环境研发补贴的动态激励效应

选取2011—2017年中国新能源行业122家上市公司面板数据,建立面板向量自回归模型（PVAR）,通过研究政府环境研发补贴、企业研发投入和环境绩效之间的动态交互关系,考察政府补贴对企业创新的激励效应以及补贴的配置合理性问题。结果表明：一方面,环境研发补贴对企业研发投入和环境绩效均存在滞后1~4年的影响。政府补贴促进企业研发投入,非国企比国企显著;政府补贴对环境绩效的影响在不同产权性质企业中存在较大差异,补贴显著抑制了国企环境绩效,但有效促进了非国企环境绩效。另一方面,企业研发投入与环境绩效对于后续政府补贴投入分别具有滞后1~4年和1~2年的正向反馈作用。针对国企,政府补贴决策是结果导向的,即更关注其环境绩效;对于非国企,政府补贴决策偏好过程导向,即更多地考察企业对研发活动的投入情况。研究结论可为完善中国新能源企业环境补贴政策,提高新能源企业环境研发水平和环境绩效提供参考。     

荒漠绿洲农业可持续发展模式探析——以新疆兵团农八师149团为例

本文以新疆兵团农八师149团为例,提出荒漠绿洲特色种植业、绿洲循环生态农业、荒漠观光旅游农业等几种农业可持续发展模式。在传统模式注重节约资源和保护环境的基础上,新模式强调经济利益驱动对荒漠绿洲农业可持续发展的保障作用,提出利用荒漠资源、“以沙治沙”的新思路,为荒漠绿洲地区农业可持续发展提供借鉴。