Endogenous Growth and Negative Externalities

Received March 5, 2001; revised version received August 5, 2002 Published online: April 30, 2003     

冬日同游世界温泉王国

温泉是秋冬的热门话题,气温越低人们对于温泉的向往就越热烈。远在北极的冰岛蓝湖,新西兰神秘的魔戒之泉罗托鲁瓦,以及瑞士最纯净的日内瓦湖区的温泉,还有印尼热腾腾的火山温泉。也许你对它们其中之一已经很熟悉,早已心中酝酿多时,那么怀着对它们的向往去吧,不要错过这美好时节!     

碳税循环政策对中国农村能源结构调整的作用——基于CGE模型的政策讨论

本文立足中国二元经济体系影响依然存在的社会现实，构建了基于CHAYANOV农民模型假设基础之上的CGE模型。并从二氧化碳减排、缓解常规能源供给压力的能源可持续发展角度出发，提出在常规能源部门收入碳税补贴现代生物质能发展的政策建议。文中重点分析了碳税循环政策实施后城乡两部门的社会经济综合变化，对碳税实施的假设给予充分肯定。     

Towards a complete real-time electricity market design

The general design for the real-time electricity market presented in this paper optimizes and prices both real and reactive power simultaneously in an AC setting, where all assets—generation, load and transmission—are allowed to bid and are financially settled at the locational price times energy consumed or produced. The result is that transmission lines are compensated for both capacity and admittance, providing incentives for efficient operation of transmission-related assets such as FACTS devices, if price-taking behavior is assumed. Losses are incorporated into the design and become an operating cost for transmission. The market design is shown to be revenue neutral and, under some assumptions, nonconfiscatory.      

迈向旅游强国

世界风云多变幻，旅游业一直在变化中调整。进入21世纪以来，全球国际旅游业的格局发生了重大变化，亚太地区跃居世界第二，欧洲、亚太地区和美洲三足鼎立的局势真正确立。更值得注意的是，全球旅游发展的亮点在东方，世界旅游的增长主要在亚太地区，亚太地区的增长集中体现在东亚，而东亚的旅游领军者是中国。中国旅游的发展举世瞩目，中国旅游业也正面临着重大变革。     

晶化时间对CoAPO-11分子筛合成过程中转晶的影响

本文研究了晶化时间对低钴含量(x=0.1)的CoAPO-11分子筛合成过程中转晶现象的影响,并采用XRD、SEM对产物进行表征。结果表明,200℃下晶化48 h,可获得纯相CoAPO-11;当晶化时间超过48 h时,产物便开始向[Co-Al-P-O]-GIS型分子筛转化;晶化延长至72 h时,产物已全部转化为[Co-Al-P-O]-GIS型分子筛,该转化过程不可逆。从分子筛骨架结构单元出发,阐述了转晶现象的内在影响因素。     

Extracting the information: espionage with double crossing

This paper addresses two very old issues in human society: espionage and double crossing. Our major conclusion points out that there will be a serious over rewarding problem in the direct mechanism due to double crossing in espionage, and a competitive mechanism with a relative performance regime can possibly mitigate the over rewarding problem and still extract the information.      

改革开放以来广州经济增长因素分析

本文从实证角度建立计量模型,利用主成分分析方法和最小二乘回归的方法,对广州改革开放30多年以来的经济增长因素进行了具体分析,研究表明改革开放30多年来,广州经济增长的促进因素主要是劳动力数量的增长,经济制度的变革,产业结构的升级,以及人力资本增长的作用,物质资本不是促进广州经济增长的主要因素。