企业私有化程度提高则社会环境会变差？

从企业私有化角度出发,构建二元经济理论模型和实证模型分析私有化对环境污染的影响。理论研究发现,由于城市部门资本密集程度高于农村部门,而且如果农村劳动者从环境改善中获得的边际效用小于城市劳动者从环境改善中获得的边际效用,那么提高私有化导致单位产出污染排放减少时会引起：（1）劳动和资本要素会向城市流动,城市工业部门产出增加;农业部门由于劳动和资本流出而导致产出减少,即城市扩张而农村收缩;(2)城市地区的失业总人数会增加;(3)私有化导致单位产出污染排放减少的效应大于工业产出增加导致污染排放增加的效应,最终导致社会环境改善,但如果私有化导致单位产出污染排放增加,则会得出相反的结论。实证结果表明：企业私有化水平提高有利于降低单位产出固体废物、废水、二氧化硫和烟尘等污染物的排放,资本投入也有利于降低单位产出污染物的排放。     

Emissions burden shifting in global value chains – winners and losers under multi-regional versus bilateral accounting

ABSTRACT

International trade leads to emissions burden shifting and threatens mitigation targets. Multiregional input–output (MRIO) and bilateral trade input–output (BTIO) models are widely used to analyse emissions embodied in trade and global value chains. Especially, the last one is used in analysing border tax adjustment (BTA) on the carbon content of imports. The model choice is not trivial. The analysis shows BTIO's inability to capture the consumer-principle throughout the production chain and its inadequacy as an option for consumption-based accounting, because it allocates emissions to the first importing country and to the sector of production, instead to the consumer (both country and region). Regarding the BTA assessment, BTIO tax domestic carbon content of direct imports, but not indirect imported carbon content. MRIO does provide incentives for mitigation in third countries. The differences in allocation of emissions and taxes’ burden of both models have different consequences for developed and undeveloped regions.     

Industrial clusters with substantial carbon-reduction potential

To successfully reduce environmental emissions, companies need to expand the scope of their emissions accounting to include entire supply chains. A clustering approach has been used to find emission-intensive industry clusters. However, this approach did not include entire direct and indirect supply chains when forming high emission industry clusters. We propose a new method based on a modified normalized cut function with Leontief’s input–output model and basic clustering algorithms to find industry clusters with high levels of embodied within-cluster emissions that are well separated in the supply chain network. We use this method to identify 58 carbon-intensive clusters of Japanese industries and visualize the within-cluster supply chains in terms of embodied carbon flows. We recommend that companies collaborate within clusters to reduce environmental emissions. Our results provide new insights on where to target emissions reduction actions and technology development within industrial supply chains.     

我国城乡居民收入差距的数理经济模型及其实证研究

深化收入分配制度改革,增加城乡居民收入是我国改革的根本目标。改革开放以来,我国的经济持续快速发展,人民的生活水平得到了很大提高,但与此同时,我国也出现了严重的居民收入差距。文章在对收入分配的影响因素进行分析的基础上,建立一个回归模型分析所有制结构的演变与居民收入的关系,进而通过协整分析和格兰杰因果检验,对二元经济结构与城乡居民收入差距之间的数量关系进行了分析和检验。研究结论表明:转型期所有制结构的演变以及二元经济结构是我国居民收入差距呈扩大趋势的根本原因,二元经济结构与城乡居民收入差距具有单向的格兰杰原因。最后针对城乡收入差距扩大的趋势提出相应的解决对策。     

中国产业结构升级能缩小城乡消费差距吗？

运用空间面板计量经济模型从时间维度和区域差异视角探讨产业结构升级对城乡消费差距的作用机理。研究表明,中国城乡消费差距存在显著的空间集聚性,产业结构升级能有效缩小城乡消费差距,但在不同时期、不同区域,作用效果存在差异。1993~2002年产业结构升级拉大城乡消费差距,而2003~2012年"减缩"作用显著,且有正向的空间溢出效应;东部产业结构升级对城乡消费差距影响不显著,但有正向的空间溢出效应,中部拉大城乡消费差距;西部缩小城乡消费差距,存在负向的空间溢出效应。城镇化发展、政府行为等缩小城乡消费差距,经济开放水平和城乡收入差距等拉大城乡消费差距。     

A spatial analysis of inward FDI and urban–rural wage inequality in China

This article investigates the spatial effect of inward foreign direct investment (FDI) on urban–rural wage inequality, both in the short and long run, by employing the Spatial Durbin Model. In particular, we carefully consider the heterogeneity of inward FDI with respect to its entry mode (ownership type) and sectoral distribution. Based on a panel dataset covering 30 provinces and cities in China from 2000 to 2016, our results show that inward FDI does not increase urban–rural wage inequality. In particular, we do not find a significant relationship between inward FDI in the secondary and tertiary sectors, while inward FDI in the primary sector has a slightly negative effect on inequality. When we consider inward FDI by entry mode, we find that wholly foreign-owned enterprises (WFE) have a negative spatial effect on urban–rural wage inequality in the short and long run, while equity joint ventures (EJV) reduce urban–rural inequality in the long run only.     

统筹城乡视角下中部地区多元城镇化模式研究

城乡差距大、城镇化滞后都是制约中部崛起的重要因素。在"两型社会"建设背景下,创新城镇化模式,实施统筹城乡的多元城镇化模式是实现中部崛起的重要战略之一。因此,需要以科学发展观为指导,以统筹城乡一体化为总体目标,构建起以市场为主导,整合中部地区城市群资源,构筑大、中、小城市和小城镇协调发展的现代城镇体系,加大制度创新,逐步消除二元体制的多元城镇化模式。     

GREENHOUSE GAS EMISSIONS AND ECONOMIC STRUCTURE IN URUGUAY

Using input–output analysis, we identify the key sectors in greenhouse gas (GHG) emissions of the Uruguayan economy. The responsibilities of each sector in terms of its emissions are decomposed into an own component, generated during the activities of the sector, and an indirect component, generated by the induced activities in other sectors. This has important implications for the design of mitigation polices, as the appropriate policy measures are contingent on the nature of the pollution. Technical improvements and best practices are effective only when applied to directly polluting sectors, while demand policies may be more appropriate for indirectly polluting sectors. In addition, we analyze pollution generated during the production of exports. The results show that demand policies are going to be effective in the Building, the Hotel and restaurants, and the Wholesale and retail trade; and repair of motor vehicles and motorcycles sectors. These policies complement GHG emissions’ mitigation policies in directly polluting sectors (mainly the Cattle farming and the transport-related sectors). Finally, methane and nitrous oxide emissions are mainly the consequence of production for exports, while carbon dioxide emissions are mainly driven by production for domestic consumption.     

UNDERSTANDING ENVIRONMENTAL RESPONSIBILITY OF CITIES AND EMISSIONS EMBODIED IN TRADE

The attribution of greenhouse gas (GHG) emissions embedded in interregionally traded products to either production or consumption regions is a key issue to the understanding of the global environmental responsibility of metropolitan areas. In this paper we identify GHG emissions for which metropolitan areas assume responsibility by allocating emissions embodied in import and export products to regions of either consumption or production in the cases of three US metropolitan areas. The case studies show that embodied emissions in both export and import products accounted for 63–73% of total GHG emissions directly and indirectly pertaining to these metropolitan economies. These findings suggest that an accounting method that incorporates emissions embodied in product trade has relevance to the development of local policies that govern actions ranging from redirecting metropolitan development patterns toward low carbon emissions to promoting sustainable consumption behavior, particularly those involving the collaboration of cities.     

一个改进的考察交易效率与城市化之间关系的一般均衡模型

本文考察人口流动受到限制情况下城市化和交易效率之间的关系.在本文的模型中,我们假定人口流动除了受到工资率的影响之外,还受到公共品消费的吸引,同时流动人口因为受到限制从而在城市劳动力市场和农村劳动力市场之外形成了介于其间的劳动力市场,且人口流动达到均衡时三个劳动力市场需达到均衡,流动人口和农村人口的效用也应达到均衡.这对于城乡二元经济结构的中国消除农村人口流动的限制、促进城市化和经济的发展具有深刻的政策内涵.     

Evaluation on development efficiency of low-carbon tourism economy: A case study of Hubei Province,China

Tourism is one of the emissions sources of CO₂ and tourism activities can impose pressure on the ecological environment. The study constructed an evaluation framework of the direct and indirect CO₂ emissions from tourism industry, and included the CO₂ emission factor in the efficiency evaluation framework based on SBM-Undesirable model, on the basis of which, the study assessed the CO₂ emissions from the tourism industry, taking the cities of Hubei province in China as case studies, and then measured and analyzed the development efficiency of low-carbon tourism economy in the cities and its dynamic fluctuations in the cities from 2007 to 2013. The results show that the total carbon dioxide emissions from tourism in Hubei soared from 6,340,302 tons in year 2007 to 23,939,851 tons in year 2013, with the transportation being the biggest contributor accounting for 50.35% of the total emissions, followed by the food, accommodation, shopping, other services, entertainment, post & telecommunications. While the direct CO₂ emission far exceeds that of the indirect in the transportation, the opposite is true in other secondary sectors. Results of efficiency measurement indicate the overall efficiency of low-carbon tourism economy is on a rather low level and varies significantly among the cities, and there are untapped potentials with internal productive factors in the economic system of urban tourism. From the perspective of dynamic shifts, however, the overall efficiency within the analyzed period was on an upward trend, driven primarily by the technological advancements induced by the scale factor, whereas the purely technological efficiency changes undermined the growth of productivity. Finally, the calculation results of slack variables in inputs and outputs based on the efficiency evaluation framework achieved in this study will provide reference for development efficiency modification of low-carbon tourism economy in inefficient cities.     

泰国城市化过程及其启示

20世纪60年代以来,泰国经济迅速发展,但城市化的进程却相对滞后.由于历史、政策以及政治体制等多方面原因,泰国在城市化过程中出现了城乡发展不协调、城市规模等级体系畸形化、贫民窟等严重的城市问题.泰国城市化过程的经验和教训对如何实现城乡协调和可持续发展具有重要的借鉴意义.对于发展中国家城市化而言,政府更应该重视优化城市层级,赋予城市一定的自治权,尊重农民的地方性知识并努力缩小城乡教育水平的差距.     

地方政府竞争、土地价格与外商直接投资——基于69个地级市面板数据的分析

选取2005—2015年我国中部五省共69个地级市的数据,在考虑存在空间溢出效应可能性的基础上,采用空间面板数据模型分析地方政府竞争、土地价格对外商直接投资的空间影响。实证研究结果表明：工业用地价格降低和商业用地价格升高有利于吸引外商直接投资,地方政府竞争通过直接和间接作用于土地出让价格两种手段影响外商直接投资规模。土地价格和政府竞争对地理相邻地区的FDI能够产生显著影响,一个地区的工业土地价格降低、商业土地价格升高将抑制地理相邻地区的FDI规模,同时,一个地区政府竞争的加剧也会降低地理相邻地区的FDI,但这一空间溢出效应在经济距离相邻权重下并不显著,说明中部五省地级市的竞争主要存在于地理位置相邻的地方政府间。     

基于结构分解的居民消费品载能碳排放变动分析

本文建立投入产出模型,基于可比价投入产出序列表测算中国居民消费品载能碳排放量;基于结构分解方法分析影响居民消费品载能碳排放的主要因素并量化其贡献率。结果显示,样本期内我国居民消费品载能碳排放变动的影响因素按贡献率绝对值由大到小排列依次是:居民消费水平、部门排放强度、部门中间生产需求结构、人口规模及居民消费结构。其中,消费水平与人口规模均表现为持续的正效应,部门排放强度表现为持续的负效应,中间需求与消费结构的贡献率则经历从负到正的变动,总体上表现为正效应。研究表明该阶段我国居民消费模式的变动尚缺少低碳维度的有力支撑。     

Convergence in Environmental Reporting: Assessing the Carbon Disclosure Project

We perform content analysis on Carbon Disclosure Project (CDP) responses from 2003 to 2010, focusing on the extent to which firms account for indirect emissions and have exhibited convergence in carbon reporting. We also examine standardization in reporting and the variation of reporting behavior across industry and country. We find that the CDP has produced a mixed record of improved transparency. In some areas, such as Scope 2 emissions, the CDP has demonstrated an increase in transparency in later years. However, the transparency and quality of direct emissions and Scope 3 emissions have not improved over time. Japanese and European Union firms have increased transparency, while American firms have decreased transparency. Energy‐intensive industries have either increased transparency or remained the same, while less energy‐intensive industries have become less transparent. We demonstrate some evidence of a learning effect among firms after participating in the CDP survey. Copyright © 2012 John Wiley & Sons, Ltd and ERP Environment.     

京津冀都市区统计与当前城市统计的比较研究

近年来,随着京津冀地区城市化进程的快速推进,中心城区不断向外扩张,加上周边农村地区的发展,城乡之间的经济与社会联系加强,都市区逐渐形成并发展。对京津冀都市区发展状况进行分析,在此基础上将都市区统计和当前城市统计进行对比,发现都市区是人口和经济活动的主要聚集地,是真正具备城市功能的地域;都市区代表了区域内更高的产业结构和发展水平;都市区统计能够更好地反映城市化快速发展的状况。最后总结了中国建立规范的都市区统计制度的必要性和迫切性,并从都市区的视角提出了促进京津冀区域内产业协调发展和统筹城乡发展的策略建议。     

A CARBON FOOTPRINT TIME SERIES OF THE UK – RESULTS FROM A MULTI-REGION INPUT–OUTPUT MODEL

The framework and results of an international multi-region input–output (MRIO) model for the UK are presented. A time series of balanced input–output tables for the UK was constructed for the period 1992 to 2004 by using a matrix balancing procedure that is able to handle conflicting external data and inconsistent constraints. Detailed sectoral and country-specific trade data for the UK were compiled and reconciled with the UK input–output data, and economic and environmental accounts for three world regions were integrated in a UK-specific MRIO model. This was subsequently used to calculate a time series of national carbon footprints for the UK from 1992 to 2004. Greenhouse gas emissions embedded in UK trade are distinguished by destination of imports to intermediate and final demand. Most greenhouse gases show a significant increase over time in consumer emissions and a widening gap between producer and consumer emissions. Net CO₂ emissions embedded in UK imports increased from 4.3% of producer emissions in 1992 to a maximum of 20% in 2002. The total estimated UK carbon footprint in 2004 was 730 Mt for CO₂ and 934 Mt CO₂ equivalents for all greenhouse gases.     

Costly Pre‐Play Communication and Coordination in Stag‐Hunt Games

In this paper, we experimentally investigate the impact of costly indirect and direct messages on coordination levels in a stag‐hunt game. Three main insights emerge from our experiments. First, we find a significant decrease in message usage with message cost in both treatments and a higher decrease in the indirect‐message treatment. Second, we find that although there is no significant effect of costless or costly indirect messages on the frequency of risky actions, both costless, and costly direct messages significantly increase the frequency of risky actions. Third, while we find a significant increase in the coordination rate on the payoff‐dominant equilibrium from costless indirect message treatment to costly indirect message treatment, this rate significantly decreases from costless direct message to costly direct message treatment. Our findings show that depending on the structure of messages, message cost may increase or decrease the coordination rates on the payoff‐dominant equilibrium with respect to costless communication. However, costly communication increases efficient coordination rates with respect to the no communication baseline. Copyright © 2016 John Wiley & Sons, Ltd.     

Child malnutrition in developing economies: a case study of Bangladesh

The study investigate the impact of socioeconomic factors on malnutrition in children (under 5 years) using Bangladesh Demographic and Health Survey. The urban and rural areas are separately probed for stunting, wasting and under-weight children. The analysis revealed that birth-interval, mother’s education and wealth index reduce the malnutrition in children for urban and rural household, while duration of breastfeeding and lower BMI of the mother increase the malnutrition in both urban and rural areas. Wealth index is more effective in rural areas as compared to urban ones. The male children are more likely to be malnourished in urban areas but female children are more likely to be malnourished in rural areas. The primary level of education of the women has no significant impact on nutritional status of children in urban as well as in rural areas. It has important policy implications that at least secondary level of education should be part of the education policy of Bangladesh. The incidence of diarrhea enhances the probability of stunting and wasting in both urban and rural areas of Bangladesh. From the policy perspective mother’s education and birth-interval are required for achieving the nutrition status of children. For the long-run the socioeconomic status of the household expressed by wealth index is needed. The duration of breastfeeding needs to be reduced by initiation of the supplement food.     

Rethinking Regional Disparity in China

Income disparities in China decreased both across provinces and across three transprovincial areas from 1978 through 1984. After 1984 there was an increase in disparity across the three areas, but there was no change across provinces. The faster growth of the coastal area can be attributed to the growth of the previously relatively poorer areas of the eastern seaboard. But this was not realised at the cost of growth in other areas; instead it contributed to overall national economic growth. International trade and foreign direct investment are the main driving forces behind the changes in regional disparity. The reasons for the concentration of trade and foreign investment in the coastal area are its inherent comparative advantage in terms of lower labour costs, better infrastructure facilities, close relations with overseas Chinese, favourable geographic location, as well as national industrial policies that protect the domestic market from foreign investment. The central government's preferential policies towards the coastal area were a necessary, but not sufficient, condition for such a concentration of foreign trade and investment.