北京市能源消费的因素分解分析

本文利用迪氏对数指标分解法(LMDI)对北京市17个行业2005～2009年间的能源消费变动进行因素分解分析.将能源消费增长的总效应分解为3个部分:生产效应、结构效应和强度效应.生产效应是经济增长对能源消费增长的贡献,结构效应反映产业结构调整对能源消费增长的贡献,强度效应是指能源效率提高时能源消费增长的贡献.实证研究结果表明,生产效应是导致北京市能源消费增长的主要因素,结构效应和强度效应则延缓了能源消费总量的增长,但生产效应明显大于结构效应和强度效应之和,因此能源消费在此期间表现为增加.值得注意的是强度效应高于结构效应.     

能源消费省区配置及节能潜力分析——以河北省为例

目前,由于存在着能源供需矛盾加剧、能源利用效率低下、环境污染日益严重等问题,河北省面临严峻的节能降耗挑战,开展节能减排工作是河北省当务之急,而节能潜力的研究与测算是制定河北省具有预见性和针对性的能源发展政策实现节能减排目标的必要前提.本文在能源消费省区配置分析的基础上,分别测算出河北省绝对趋同务件下、相对趋同下的节能潜力,并得出相应结论:绝对趋同条件下河北省总体能源效率在全国范围内水平明显偏低,总体节能潜力达到63.05％;在东部地区及与河北省相邻省市相对趋同条件下,河北省能源效率水平也都处于落后水平,具有相当的综合节能潜力.     

Order aggressiveness and order book dynamics

In this paper, we study the determinants of order aggressiveness and traders’ order submission strategy in an open limit order book market. Applying an order classification scheme, we model the most aggressive market orders, limit orders as well as cancellations on both sides of the market employing a six-dimensional autoregressive conditional intensity model. Using order book data from the Australian Stock Exchange, we find that market depth, the queued volume, the bid-ask spread, recent volatility, as well as recent changes in both the order flow and the price play an important role in explaining the determinants of order aggressiveness. Overall, our empirical results broadly confirm theoretical predictions on limit order book trading. However, we also find evidence for behavior that can be attributed to particular liquidity and volatility effects.

皖江城市群空间范围的界定

城市群空间范围的界定是城市群研究的基础。使用区位商方法确定芜湖和安庆为皖江城市群的中心城市,计算了中心城市在研究范围内的经济联系强度和经济联系隶属度,以此为基础,确定了皖江城市群的空间范围并划分了其空间腹地层次为：核心区（芜湖市、安庆市、马鞍山市、枞阳县、当涂县、怀宁县）;紧密腹地（合肥市、池州市、芜湖县、无为县、铜陵市、繁昌县）;竞争腹地（桐城市、巢湖市、东至县、和县、宣城市、潜山县、南陵县、望江县、庐江县、含山县、太湖县、滁州市、宿松县、肥西县）;边缘腹地（肥东县、铜陵县、岳西县、青阳县、全椒县、泾县、宁国市、石台县、郎溪县）。     

China as a Global Manufacturing Powerhouse： Strategic Considerations and Structural Adjustment

This study examines the nature and consequences of China＇s rise to the center of world economic affairs through manufacturing-led development. Our historical analysis shows that China is still well short of the point in its developmental process where its growth might be reasonably expected to slow, or the energy, resource and carbon intensity of growth to recede. The study argues that the current trajectory of industrialization will have to be altered when China becomes more actively engaged in dealing with structural issues at home and abroad against the background of the unwinding of global imbalances. One profitable strategy that China might employ wouM be to approximate the incredibly fruitful mass-market integration efforts of the USA that eventually elevated it to its position of global primacy. The cyclical re-emergence of excess capacity in Chinese heavy industry, serious questions about the medium term ability of other major regions to accommodate further large gains in Chinese market share, and the stark conflict between the contemporary style of industrial development and the health of the biosphere indicate strongly that now is the time to catalyze the required adjustment and reform processes that will underpin sustainable long-run prosperity.     

高收入国家与中等收入国家的能源密度差异的实证研究

本文依据1990年至2000年间中国和11个OECD国家的14个工业产业的样本数据,运用可乘对数的Divisia指数分解方法,实证分析了这些国家的能源密度变化特性,解释推动能源密度变化的主要因素。实证分析结果显示,所有中等收入国家在这期间都经历GDP的快速增长和能源密度的迅速下降。尽管能源密度降低速度较快,但是从总体水平上看,中等收入国家的能源密度同高收入国家还存在较大的差距。另外,无论是中等收入国家还是高收入国家,纯密度变化都是能源密度降低的最主要原因。而且中等收入国家的能源使用效率的提高与经济开放、工业私有化和市场自由化过程相关。     

国内服装制造企业库存管理的实证研究——基于沪深服装类上市公司1996-2008年的面板数据

文章对国内服装制造类上市公司库存水平的变动趋势及影响因素进行了实证研究。结果发现库存周转率与毛利率负相关,与固定资产比重正相关;销售下降时销售变动率对库存周转率的影响比销售增长更敏感。控制毛利率、固定资产比重、销售变动率及宏观经济因素后服装制造企业修正库存周转率逐年下降;公司绩效与库存周转率之间无相关关系,库存周转最慢和库存周转居中的公司投入资本报酬率高于库存周转最快的公司。     

Impact of foreign direct investment on greenhouse gas emissions in agriculture of developing countries

This research analyses the impact of foreign direct investment on greenhouse gas emissions in the agriculture sector of developing countries. Panel data from 63 developing countries for the period 2005 to 2014 was used to estimate a dynamic econometric model by applying a system‐generalised method of moments. The empirical results indicate a positive impact of foreign direct investment in agriculture on the carbon dioxide equivalent emission intensity in developing countries. The results provide weak support for the pollution havens hypothesis and imply the importance of coordination between foreign direct investment and environmental policies.     

Beyond symbolic and substantive: Strategic disclosure of corporate environmental information in China

Under increasing regulatory pressure to disclose environmental impacts, corporate environmental information disclosure (EID) is becoming more prevalent. However, the motives for EID and disclosure approaches (i.e., symbolic or substantive) remain controversial. Using a sample of data for 742 listed manufacturing firms in China across 3 years, we provide evidence to show that the level of EID is significantly positively associated with a firm's advertising intensity and that firms in moderately competitive industries have a higher propensity for adopting an EID‐based differentiated strategy than firms in stronger or weaker competitive industries. We also find that firms that are more sensitive to environmental issues strategically understate their environmental impact when directly facing consumers. Our results suggest that the implementation of corporate EID is strategic and that firms have strong market motives, even under regulatory pressure to demonstrate legitimacy. We discuss this study's contributions to research on EID theory and implications for strategic EID management.     

基于神经网络的建筑业碳排放强度预测——以京津冀为例

通过统计分析得出影响建筑业碳排放强度的13个影响因素,基于收集的京津冀相关数据,运用逐步回归分析找出其中6个关键因素.借鉴五折交叉验证解决数据稀缺问题,采用神经网络对京津冀建筑业碳排放强度进行预测.利用敏感性分析简化模型,筛选出4个核心因素.结果表明,此模型预测精度高达99％,同时根据挖掘出的核心因素和关键因素,提出建筑业节能减排的建议.