Women’s empowerment and nutrition status: The case of iron deficiency in India

In this paper we study the relationship between women’s empowerment in agriculture and their iron deficiency status in Maharashtra, India. This is the first time the Women’s Empowerment in Agriculture Index (WEAI) has been used in association with explicit measurement of medical biomarkers for women’s iron deficiency status. Using primary data for 960 women we find that the log odds of a poor iron status in women decline as women’s empowerment levels in agriculture improve. Further, this decline is seen in the presence of multiple dietary diversity measures (dietary diversity score, share of rice and wheat in the diet, total iron intake and iron intake from iron-rich food groups – all for 24-h and 30-day recalls) suggesting that in addition to dietary pathways women’s empowerment can play a role in addressing micronutrient deficiencies like those of iron in a vulnerable sub-group of the population. It also reinforces the need to move away from the ‘staple grain fundamentalism’ that has characterized agricultural policy in India, towards more nutrition-sensitive food systems.     

Modelling the iron ore price index: A new perspective from a hybrid data reconstructed EEMD-GORU model

As iron ore is the fundamental steel production resource, predicting its price is strategically important for risk management at related enterprises and projects. Based on a signal decomposition technology and an artificial neural network, this paper proposes a hybrid EEMD-GORU model and a novel data reconstruction method to explore the price risk and fluctuation correlations between China’s iron ore futures and spot markets, and to forecast the price index series of China’s and international iron ore spot markets from the futures market. The analysis found that the iron ore futures market in China better reflected the price fluctuations and risk factors in the imported and international iron ore spot markets. However, the forward price in China’s iron ore futures market was unable to adequately reflect the changes in the domestic iron ore market, and was therefore unable to fully disseminate domestic iron ore market information. The proposed model was found to provide better market risk perceptions and predictions through its combinations of the different volatility information in futures and spot markets. The results are valuable references for the early-warning and management of the related enterprise project risks.     

我国钢铁业产业内贸易的实证研究

文章从整体和分类两个层面上对我国钢产量居世界第一以来的钢铁业产业内贸易的水平和结构进行了实证研究。结果表明,我国钢铁业产业内贸易水平较低,贸易变动主要由产业间贸易引起;而且钢铁业的垂直型产业内贸易水平较低,产业内贸易以水平型产业内贸易为主。我国为此应该采取相关对策,促进钢铁业产业内贸易的发展。     

基于补偿检验理论的铁矿石储备规模探讨

建立储备是化解资源供应风险的有效措施之一,储备规模的大小是其中的核心问题,规模过大则成本过高,有可能得不偿失,规模太小,又难以发挥应有作用。考虑到储备一般情况下应当是政府向社会提供的公共产品,是一项公共政策,因此,西方福利经济学中卡尔多—希克斯补偿检验理论应当作为储备制度安排的依据之一。2005年以来铁矿石进口价格连续上涨,使得铁矿石供应风险问题引起了社会各界的广泛关注,本文基于卡尔多—希克斯补偿检验理论,通过建立成本—效益分析模型,对铁矿石储备的合理规模进行探讨。     

我国在铁矿石贸易谈判丧失“话语权”原因和对策

我国是国际铁矿石的需求和进口大国,可以说是市场需方的一个大寡头,但是在每次的国际铁矿石贸易价格谈判中处于几乎"失语"的尴尬处境。本文分析了其原因并为改善这种不利处境为我国钢铁企业提供参考对策。     

白家寨脉石英矿地质特征及研究价值

龙陵县白家寨脉石英矿开采历史悠久,自1999年开始采掘,以露天开采的方式分台阶进行剥采。本文通过矿床地质特征的研究,查明了白家寨脉石英矿的矿体分布形态,矿石质量特征等,不仅对类似矿床的地质研究工作具有一定指导意义和参考价值,还能产生一定的经济价值、环境效益以及社会意义。     

滇南荒田铅锌矿床地质特征及找矿标志

荒田铅矿矿床位于华南褶皱系、扬子准地台和唐古拉-昌都-兰坪-思茅褶皱系三大Ⅰ级构造单元衔接过渡部位,属红河断裂北侧的回新-虾洞-荒田-大冷山铅锌银多金属成矿带南东部。矿区主要出露下二叠统茅口组(P1m)、玄武岩组(P1β)、上三叠统火把冲组(T3h),为一套海相碳酸盐岩-基性火山喷发-沉积岩组合。铅锌矿体赋存于玄武质、灰质角砾岩中并受角砾岩性和厚度控制,富厚部位常在褶皱(背斜)的两翼和向斜的槽部。玄武质、灰质角砾岩层和次级褶皱的两翼、槽部是重要的找矿标志。矿床成因属"火山沉积-岩浆期后热液+后期构造改造富集"。     

激电中梯和激电测深在寻找铜锌多金属矿中的应用

目前在多金属矿床勘查的物探方法中,激电中梯和激电测深是一种最有效的物探方法之一,在分析勘查区的地质资料的基础之上,合理布设测线,合理选取电极装置,通过分析整理激发极化法电测深数据,得到能够较准确地反映地下矿体的赋存、分布等特征的地质成果资料,预测成矿有利区段,所圈定锌多金属矿找矿靶区在后来的地质找矿工作中得到了证实。     

全球海运铁矿石市场承压解析与行业影响

世界钢产量峰期出现在2000年以后,其高速增长动力主要来源于中国,而中国铁矿石原矿资源禀赋的劣势,愈发刺激了中国对国际海运铁矿石的需求,致使中国铁矿石需求的对外依存度较高,与此同时,作为铁矿石纯进口国的中国难以主导铁矿石定价权。2011年国际铁矿石市场正值高位运行,大部分铁矿石生产商在高价驱使下,选择大幅增加投资成本扩建产能,海运铁矿石市场供需基本面开始倒转。2015年以来,铁矿石中国到岸价大幅下跌,铁矿石生产巨头由于低廉的现金生产成本也只能勉强盈利或者维持在盈亏平衡线附近,高成本矿被实质性挤压出局。而美国量化宽松政策收紧乃至退出,导致金融流动性降低,进一步巩固了全球铁矿石市场"供强需弱"的格局。由于国内高成本铁矿项目的退出,中国铁矿石需求对外依存度将会进一步升高。     

黑山铜镍硫化物矿床成因与预测

长久以来甘肃北山地区一直就是基础地质和矿床地质理论研究以及找矿勘查热点,本区横跨3个不同的大地构造单元,区内前寒武纪和古生代地层出露广泛,构造形迹复杂,岩浆岩发育,金属矿床星罗棋布。文章从区域地质、矿床地质、矿床成因等因素,对甘肃肃北黑山铜镍硫化物矿床进行分析,根据本区的实际情况,对黑山矿床含矿超基性岩体的形成与空间展布规律进行新的研究判断,为未来找矿工作的思路和方向提出有益的见解及观点。