一个培育我国外贸新增长点的设想--发展环渤海区域外贸城市群

对外贸易的拉动作用是实现我国十六大经济增长目标的重要保证。但是，反观当前的国内外环境，我国进出口贸易的发展遇到了诸多困难。欲解决这些问题，必须进行制度创新，其中培育城市群是一种可行的办法。而环渤海区域以其特有优势，成为培育对外贸易城市群的首选。为此，我国需要在环渤海区域大力发展高新技术产业，培育产业集群，引导民营企业发展，以及发挥政府的政策作用。     

广西北部湾经济区发展战略探析

分析了广西北部湾经济区的发展现状,创造性地提出其发展要因,最后,基于发展要因提出经济区发展战略,以供决策参考。     

环渤海地区农业绿色发展水平评价与区域差异分析

[目的]科学评价农业绿色发展水平,测度环渤海地区农业绿色发展区域异质性,厘清农业绿色发展关键路径,对促进该地区农业高质量发展具有重要意义。[方法]文章以环渤海地区4省2市1区为研究对象,构建农业绿色发展评价指标体系,采用熵权法测度农业绿色发展水平,综合运用耦合协调度模型和变异系数法解析该地区农业绿色发展空间异质性特征。[结果]（1）环渤海地区农业绿色发展水平整体呈现递增态势,其中产出效益变化显著;（2）对比2005和2019年,环渤海地区4省2市1区农业绿色发展路径具有典型区域差异性：2005年京晋和内蒙古资源节约表现显著,津冀辽鲁环境友好表现显著;而2019年京产出效益表现显著,津鲁辽冀环境友好表现显著,晋和内蒙古资源节约表现显著。（3） 2005—2019年环渤海地区4省2市1区农业绿色发展耦合协调度呈现上升趋势,但处于低度耦合协调阶段,耦合协调度变异系数呈现下降趋势,农业绿色发展区域差异性逐渐降低。[结论]资源节约与环境友好层面是推进环渤海地区农业绿色发展的重点方向,制定差异化区域发展战略,加强区域间联系,发挥京津城市辐射效应,缩小区域之间差异,促进环渤海地区绿色农业的协调发展。     

北部湾海鸭蛋蛋黄色泽与5种天然色素含量的关联分析

目的：建立高效液相色谱法同时测定北部湾海鸭蛋蛋黄中虾青素、叶黄素、玉米黄素、角黄素和β-胡萝卜素5种天然类胡萝卜素含量,同时对比罗氏比色扇法测定结果,合理分析出天然类胡萝卜素总含量与蛋黄色泽两者之间的关联。方法：样品经皂化后用复合溶剂[石油醚+乙醚=1+1(V/V)]提取,用水洗涤去碱性,旋蒸干后用乙腈复溶,Athena C30 HPLC Column(250 mm×4.6 mm,5μm)色谱柱分离,以甲醇+1%磷酸水+叔丁基甲醚作为流动相进行梯度洗脱,流速1.0 mL·min^-1,DAD二极管阵列检测器,检测波长474 nm。结果：5种类胡萝卜素可以良好分离,相关系数r2均在0.997以上,样品在3个浓度水平的加标回收率为86.7%～98.4%(n=8),精密度为1.59%～3.78%。结论：该方法快速实用,测定的色素总量结果与采用罗氏比色扇法测定色度结果具有明显的关联,色素总量越高,其色度值也越高,可以作为海鸭蛋中天然色素的有效检测方法,克服了罗氏法易受个人主观性影响的缺陷,具有更科学、更准确的优点。     

环渤海地区产业结构趋同的实证研究

利用产业结构相似系数,从三次产业结构、工业内部结构以及主要工业产品三个不同的层面上对环渤海地区“三省两市”的产业结构进行实证分析之后发现,环渤海地区的省市间只在三次产业机构这样的宏观层面上具有较高的相似系数,而在工业内部以及主要工业产品上相似水平大大降低。因此环渤海地区产业结构间只有一定程度的趋同。不存在严重的产业同构现象,并且这种趋同现象有其内在的必然性。     

北部湾城市群自然资本利用状况、空间分析与驱动因素

以北部湾城市群为例用三维生态足迹模型、偏最小二乘法、空间计量模型分析了其自然资本利用状况、空间相关性、驱动因素。结论:(1)城市群自然资本利用处于不可持续状态;(2)自然资本利用程度划分为低、中、高三类,城市也相应分成三类;(3)自然资本利用的主要驱动因素是人口因素、社会经济;(4)空间分析显示全局莫兰指数为正,空间集聚显著,表明自然资本利用存在空间正相关;空间误差模型拟合度最好,并证明自然资本存量占用与人口总量正相关,与GDP总额负相关。     

Organizational mindfulness,mindful organizing,and environmental and resource sustainability

The research theorizes that environmental vulnerability can be minimized through mindfulness‐based strategies, and redesigning organizing processes, so that richer thinking is activated more quickly among greater number of people all of whom try to update their knowledge regardless of the knowledge source. It empirically evaluates the effects of organizational mindfulness and mindful organizing on resources and environmental sustainability. The model was tested in a very appropriate setting—Saudi Arabia, where increasing demand for and supply of energy culminates in unsustainable resources utilization and rise in greenhouse gas emissions and other environmental vulnerabilities. Data were collected from Saudi firms operating in the oil and gas sector and analyzed using SmartPLS software. The measurement and structural models were evaluated. The measurement model exhibits adequate model fit. The tests for the structural models show that four (of five) dimensions of organizational mindfulness (viz., commitment to resilience, deference to expertise, preoccupation with failure, and reluctance to simplify interpretations) and mindful organizing are significantly related at 5% significance level. Sensitivity to operations has no significant relationship with mindful organizing. Mindful organizing is significantly related to environmental and resources sustainability. Moreover, mindful organizing fully or partially mediates in the relationship between some of the dimensions of organizational mindfulness and environmental and resources sustainability. The study is one of the first to integrate mindfulness‐based approaches to sustainability and environmental research.     

‘Hidden’ expatriates: international mobility in the United Arab Emirates as a challenge to current understanding of expatriation

Expatriates are often assumed to have enhanced terms and conditions and, because that makes them expensive, to be in key managerial or technical specialist roles. Employees who come from abroad and are in more manual or even menial roles are usually referred to as ‘migrants’. However, there are millions of people around the world who are not migrants, their intended sojourn in a foreign country is seen by them and their employers as temporary, but their employment contracts are far from advantageous compared with those of locals. These ‘hidden’ expatriates are brought into focus in the emerging Arab Gulf States. In some of these countries, the population consists mainly of expatriates, with the local population a small minority: These expatriates include many in lower‐management or manual or menial jobs. We demarcate these expatriates from organisationally assigned expatriates, self‐initiated expatriates and migrants. We use qualitative data from such expatriates in the United Arab Emirates to explore the issues this raises for governments, employers and the expatriates – and for our understanding of the phenomenon of expatriation.     

A case study: The impact of low-cost carriers on inbound tourism of Saudi Arabia

This study investigates the impact of low-cost carriers (LCCs) on Saudi Arabia's tourism demand. It also provides an understanding of the relationship between air transport development and tourism development in the Gulf region. The Box–Jenkins SARIMA-X models were employed to model and forecast international tourist arrivals to Saudi Arabia, using monthly international tourist arrivals to Saudi Arabia from July 2010 to December 2015. The forecasting models were significantly accurate, with lower values of MAPE, MAP, and RMSE. The findings suggest that an increase in airline capacity, religious travel, and airline competition are associated with the increasing international tourist arrivals to Saudi Arabia. This also indicates that there is a positive relationship between air transport development and tourism development. Further aviation liberalisation in the Gulf region is discussed to give opportunities for the region's LCCs to increase their share of the increasing air travel demand, thereby enhancing tourism development.     

海湾合作委员会（GCC）认证制度新动向

近些年来,我国汽车工业飞速发展,自主品牌汽车在海湾国家已占据了一定的市场份额。为此,本文通过对目前海湾合作委员会汽车认证新制度的介绍,分析海湾汽车市场与技术壁垒,以及GCC认证制度的变化情况,为国内汽车企业进一步了解特殊市场产品的品质要求,及顺利通过申请GCC认证提供建议。