深化地勘改革 加快发展的若干建议

当前,地勘单位改革发展进入攻坚阶段,地勘行业主管部门和地勘单位自身都必须进一步解放思想,转变观念,为地勘行业谋求、探索科学发展之路.建议:(1)创造良好的外部环境,大力支持地勘单位的改革和发展:(2)坚持改革方向,积极探索改革发展的实现形式;(3)加强地质勘查行业管理,促进地勘产业发展;(4)充分发挥地方公益性地质调查队伍在地勘单位改革发展中的作用;(5)扩大服务,做大做强地勘主业:(6)改善野外地质工作条件,提高野外人员待遇;(7)构建地质勘查工作新机制;(8)重奖地质找矿有功的单位和找矿人员.     

地勘单位改革更需要内生动力

最近国土资源部出台的关于巩固地质找矿改革发展大讨论成果,促进国有地勘单位改革的三个文件。释放了国土资源部决心加快推进地勘单位改革的信号,为地勘单位的改革发展创新制定了一批利好政策。三十年来,国有地勘单位改革外力推动强劲,内生动力不足,应设法使地勘单位改革的内生动力迸发出来,突出地勘单位的专业优势,转换发展模式,提高地勘行业的产业集中度;力促地勘单位"走出去",防止地勘单位退回去,使改革的内生动力与外部推力结合在一起,解放思想,趁热打铁,使地勘队伍真正成为国家资源保障中的基础力量。     

四川省地矿局改革三十周年回顾及启示

四川省地矿局改革开放经历了四个阶段,即起步准备、广泛探索、深入开展、加快推进阶段;在地质找矿、地质科技、地质服务、地勘经济、职工生活条件改善、队伍人员结构调整等六个方面取得了丰硕成果;文章对今后如何又好又快发展地勘经济提出了保障资源、科学指导、发展经济、以人为本、搞好服务等五条意见和建议.     

发挥找矿主力军作用 服务区域经济发展——以宁夏地矿局为例

建设和谐富裕新宁夏,国有地勘单位肩负着重大责任:一是基础地质工作历史欠账较多,亟需弥补;二是经济发展需要资源保障;三是工业发展需要资源支撑;四是已经探明储量的资源保障能力越来越弱;五是民生工程建设需要地质技术服务。针对宁夏找矿方面的潜力、地质成矿背景优越和勘查找水任重道远的特点,发挥找矿主力军作用的举措:实施好两个方案;加强基础地质和地质科技工作;加快金属矿产找矿突破;提高优势矿产资源勘查程度及综合开发利用;加大对有潜力的新资源的科研及勘查;加强勘查找水;全面增强地勘单位发展实力;在事业单位分类改革时对地勘单位准确定位。     

新形势下地勘单位改革发展的几点思考——以广东省为例

受国际、国内经济和资源大环境影响,地勘行业投入持续走低,而城市地质、农业地质、环境地质等非传统行业蓬勃发展,新形势下地勘单位必须由传统地勘服务向"大地质"综合服务转型,必须根据国家政策和市场需求进行改革。而地勘单位面临着历史遗留问题较多、制度不健全及生存发展压力大等问题。新形势下地勘单位必须清醒地认识市场规则的深刻变化,摸清市场需求,查找面临的实际问题,结合自身实际,准确定位,增强自身服务能力,增加资本金积累,完善管理和激励制度,积极与政府及主管部门沟通争取政策支持,积极推动改革进程,适应新形势,谋取新发展。     

求真务实勇于创新努力推进地勘单位改革发展

如何按照科学发展观的要求，有序推进地勘单位改革，全面加快地勘单位发展，是需要政府部门、地勘单位认真思考、统筹谋划的重大问题。近年来，甘肃省地矿局在加快发展和深化改革方面进行了一些积极的探索和有益实践，坚持解放思想、完善发展思路不动摇，坚持履行职责、加强地质找矿不动摇，坚持拓宽领域、强化服务功能不动摇，坚持发展第一、促进经济增长不动摇，坚持深化改革、推动机制创新不动摇，坚持以人为本、保持队伍和谐不动摇，为进一步深化改革、加快发展奠定了重要基础。     

“地质找矿改革发展大讨论”征文

当前我国地质找矿工作正面临着内外部环境的巨大变化，处于改革发展的关键节点。面对新的形势，地质找矿工作总体上还不适应经济社会发展的需要。为进一步巩固和扩大学习实践科学发展观活动成果，深入贯彻落实中央关于加强地质工作的一系列指示精神，推进地质工作根本转变，使地质工作更加紧密地与国民经济和社会发展相结合，更加主动地为经济与社会发展服务，国土资源部决定，集中一段时间，广泛深入地开展多层面、多领域的地质找矿改革发展大讨论活动。     

“地质找矿改革发展大讨论”征文

当前我国地质找矿工作正面临着内外部环境的巨大变化，处于改革发展的关键节点。面对新的形势，地质找矿工作总体上还不适应经济社会发展的需要。为进一步巩固和扩大学习实践科学发展观活动成果，深入贯彻落实中央关于加强地质工作一系列指示精神，推进地质工作根本转变，使地质工作更加紧密地与国民经济和社会发展相结合，更加主动地为经济与社会发展服务，国土资源部决定，集中一段时间，广泛深入地开展多层面、多领域的地质找矿改革发展大讨论活动。     

地勘单位改革的路径选择

经过近十年的探索和实践,地勘单位改革已经积累了不少经验和作法,国土资源部2009年以来开展的地质找矿改革和发展大讨论活动,又汇集了不少有关这方面的真知灼见。归纳和总结内蒙古、广东等模式的特点和影响地勘单位改革的深层次原因可知,地勘单位进一步的改革应遵循先易后难、先政后事、先公后商和先市场后主体的原则。     

实施地质找矿新机制还需政府给力

政府应在建立和完善矿产勘查投融资机制,为地勘单位营造良好的地质勘查工作环境,为地勘单位提供信息服务和为地质科技进步搭建平台等几个方面发挥积极作用,以使地质找矿新机制得以运行。     

Location equilibria in a mixed duopsony with a cooperative

This work analyses a two‐stage price–location game between a profit maximising firm and a primary producers' cooperative. According to the results, the location equilibria are not fixed but depend on the intrinsic competitiveness of the spatial market. As the intrinsic competitiveness rises, the cooperative tends to be located closer to the middle point of the market. The limited differentiation in location entails an efficiency loss which is nevertheless smaller than that associated with the competition of two profit maximising firms (pure duopsony) on exactly the same spatial market. The superiority of a mixed duopsony lies in the fact that the resulting equilibrium locations entail lower total transportation cost relative to those of a pure duopsony.     

线性规划方法中存在的加总偏误问题——以农户生产决策模型为例

本文以农户生产决策研究为例,探讨线性规划方法中加总偏误的来源,以及处理加总偏误的方法。有效避免加总偏误的核心在于如何选择农户关键变量,对样本进行分类。目前所采用的分类方法较为主观,缺乏系统性和科学性,仍期待更多相关性研究。     

发挥桥梁纽带作用 做好协会(学会)工作

<正>2009年,四川省粮食行业协会(学会)在省粮食局直接领导下,在全国粮食行业协会和省民政厅、省社科联的指导下,紧密联系各市、州粮食行业协会(学会)和全省粮食工作者,坚持以邓小平理论、     

Forest plantations in Paraguay: Historical developments and a critical diagnosis in a SWOT-AHP framework

Over the last century, Paraguay has seen deforestation on a massive scale. At the same time, forest plantation efforts have been very limited. This paper examines why this is the case, and why until today investment in forest plantations in Paraguay is constrained despite visible wood shortages. Paraguay’s forest plantation sector is analyzed based on a typology of five plantation paradigms. This is followed by a critical diagnosis of the current plantation situation on the project level conducted through a SWOT-AHP analysis and supported by an expert survey. Thirty-six specific factors for establishing plantations are identified and evaluated for both small-scale and large-scale plantations. The analysis reveals strengths, weaknesses, opportunities and threats for both plantation types, and shows that small-scale plantations possess more highly valued strengths, while there are more significant threats for large-scale plantations. Critical conclusions and policy implications for expanding the scale of forest plantations in Paraguay are provided, focusing on forestry, institutional, political and intersectoral issues.     

新疆应大力发展沙棘种植

沙棘是最适合在干旱、半干旱地区栽种的优良树种,它不仅能防风固沙、改善生态环境,而且果实、果皮、叶和种子都具有极高的经济价值,因此,在新疆应大力发展沙棘种植。     

Comparing the Profitability of a Greenhouse to a Vertical Farm in Quebec

Rapidly growing demand for year‐round fresh food, regardless of the weather or climate, is driving demand for controlled environment agriculture systems. Sales from greenhouses (GHs) are growing at 8.8%, while sales from vertical farms (VFs) are growing at 30%. It is commonly believed in industry circles that a VF cannot economically compete with a GH, due to the high cost of powering artificial lighting. Nonetheless, researchers have yet to analyze the economics underlying a VF, let alone compare the profitability of a VF to that of a GH. This research gap is particularly relevant to Canada, as it is uniquely positioned to be a leader in the VF market. Below, we report the results of a detailed simulation of the profitability of growing lettuce in a VF and in a GH located near Quebec City. Surprisingly, we find that the costs to both equip and run the two facilities are very similar, while the gross profit is slightly higher for the VF.     

The optimal export tax for a primary commodity in a vertical market

The conventional formula for the optimal export tax (derived from a partial equilibrium model that ignores importers’ welfare) is extended to include the deadweight loss to the domestic economy associated with the tax. Applying the extended formula to the tax Russia imposes on its exports of logs, results suggest ignoring the marketing channel causes the optimal export tax for a primary commodity to be understated. The degree of understatement increases as the supply of logs and processing/marketing inputs become less price elastic, and as buyer and seller power in the downstream (lumber) industry increases. For plausible values of model parameters, however, the degree of understatement is modest, less than 19%.     

Incorporating risk in a positive mathematical programming framework: a dual approach

In this study we develop a new methodological proposal to incorporate risk into a farm‐level positive mathematical programming (PMP) model. We estimate simultaneously the farm nonlinear cost function and a farmer‐specific coefficient of absolute risk aversion as well as the resource shadow prices. The model is applied to a sample of representative arable crop farms from the Emilia‐Romagna region in Italy. The estimation results confirm the calibration ability of the model and reveal the values of the individual risk aversion coefficients. We use the model to simulate different scenarios of crop price volatility, in order to explore the potential risk management role of an agri‐environmental scheme.     

家庭代际经济支持存在邻里效应吗?

基于2016年中国家庭追踪调查数据(CFPS),文章识别了家庭代际经济支持中的邻里效应,并对相关影响机制进行了检验。估计结果表明:在控制子女、父母等一系列特征变量后,社区邻里效应对家庭代际经济支持具有显著的正向影响。进一步分析表明,这种影响因家庭所在区域存在明显差异,表现为社区邻里效应对农村家庭代际经济支持的影响明显大于城镇家庭。此外,研究还发现:社区邻里效应对多子女家庭代际经济支持的影响明显大于独生子女家庭,对男孩家庭代际经济支持的作用显著大于女孩家庭和既有男孩又有女孩的家庭。最后,机制检验表明:在社区内部,子女追求社会地位,希望赢得他人尊重是社区邻里效应发挥作用的重要机制。文章从社区内部不同家庭互动角度解释家庭代际支持行为,为理解近年来我国不断增加的家庭代际经济支持现象提供了一个新的视角。