共查询到20条相似文献，搜索用时 15 毫秒
1.
PU Xing-cheng~ 《保鲜与加工》2003,(12):119-121
The simple portfolio investment model is given, with the HJB equation. The optimal portfolio investment problem is discussed under some given supposition, the quantitative relations are gotten between the investment strategies and riskless investment income rate and risk investment income rate are gotten. And with the quantitative relations, we study the qualitative relations between the investment strategies and riskless investment income rate and risk investment income rate. This also accounts for the effect of the falling interest rate of RMB on the national economy. 相似文献
2.
Much of the post‐development agenda is concerned with decoupling Eurocentric imaginings of development from development practices in ‘remote’ regions and exploring new forms of economy that can enhance local well‐being. In the South Pacific (and elsewhere), small peripheral economies have confronted globalisation in varying ways. Some places, such as the Micronesian island state of Kiribati, have engaged directly with the global economy by investing capital generated locally in international financial markets rather than in domestic industries. Kiribati's trust fund, the Revenue Equalisation Reserve Fund, maintains a balanced portfolio of international equity and fixed income assets that produces a financial return, helping to augment Kiribati's other national income sources. In this paper we explore the results of capital flowing from Kiribati to global financial markets, noting that this alternative development practice can enhance local well‐being. 相似文献
3.
William T. Hipwell 《Asia Pacific viewpoint》2009,50(3):289-306
Numerous scholars studying community efforts to (re‐)establish autonomy have begun to focus on the importance of empowerment in the economic, political and cultural spheres. There is a growing understanding that such empowerment can be hastened by affirmative development strategies that build on community assets and capacities rather than attempting to redress – and thereby emphasising – needs or lack. Such development work reflects intertwined currents in contemporary philosophy, influenced by the thought of Friedrich Nietzsche and of Gilles Deleuze. In Taiwan, a recent resurgence in identities among marginalised aboriginal or indigenous peoples (‘Formosans’) has been accompanied by novel approaches to development. This discussion heuristically employs a set of development theories that are essentially variants of ‘asset‐based community development’ (ABCD) to suggest that a focus on affirmation and empowerment has been and can be a key to success in Formosan development initiatives. The paper presents the results of qualitative field research, illuminating three case studies of Formosan development – in Tsou, Tayal and Taroko territories. It argues that Formosan development will benefit from a focus on community capacity, political empowerment and social as well as physical assets, and that to an important degree this has already happened in some communities. 相似文献
4.
为促进甘肃省农业保险政策的完善及提高农户对农业保险的有效需求,进而促进甘肃省农业保险的可持续发展,本研究针对农业保险市场上政府、保险公司和农户三大利益主体之间的相互影响关系,采用完全信息静态博弈理论对各个利益主体的收益进行博弈分析,同时结合甘肃省实地调研数据,选取逻辑回归分析方法提取影响农户参与农业保险的主要因素。分析得出：在保险公司和农户的博弈中,保险公司在农户有投保意愿时应当做出的积极回应为不经营策略,如果选择经营,则会损失更多(-M-P+C<0),其中,C为农户的投保金额,M为出险后农户获得的保险金,P为保险公司的经营成本;农户在保险公司做出经营策略的时候,应当积极投保,这样才能获得收益,如果保险公司选择不经营,农户无论做出什么选择,都会损失预防灾情的资金N,并且如果农户选择投保还会损失更多;在政府与保险公司的博弈中,可以看出,政府的最佳收益为0,说明政府不支持保险公司进行农业保险业务是最佳策略;而对保险公司来说,只有在政府支持的情况下,才能获得最佳收益（-M-P C Q),其中,Q表示政府对保险公司的支持成本,这说明,只有在政府支持的情况下,保险公司经营农业保险的积极性才能提高。逻辑回归分析表明文化程度、务农人数、耕地面积、农业收入占家庭收入比重、了解农业保险程度对农户农业保险购买行为具有显著的影响。 相似文献
5.
6.
JING Li-ying 《保鲜与加工》2006,(3):156-158
Owning to the ability of accepting insurance enough,it is the foundation for insurance companies to operate in a long-term and steady way,a method to develop sustainably,a reflection of an insurance company's comprehensive competition ability and also a premise for an insurance company to realize developing strategy.Accepting insurance ability is very important in the development and strategic planning for an insurance company.The quantitative analysis is used to analyze the ability of accepting insurance of our country's insurance companies,in another word,the factor(analysis),which belongs to the analysis of diverse statistic,is used.Using the method to give a concrete evidence analysis to the ability of accepting insurance of our country's non-life insurance companies,so that the insurance companies can understand very well to the advantages and disadvantages of the ability of accepting insurance to each other,and as well as supplying a strategic reference for the insurance companies themselves to make decisive planning. 相似文献
7.
YONG-SOOK LEE 《Growth and change》1999,30(3):337-365
ABSTRACT This article examines diverse transnational corporations’(TNC) strategies in response to labor shock and specific conditions that enhance TNCs’local embedding in export processing zones (EPZs). The goal of this paper is to understand the rationale behind TNCs’choice between spatial differentiation (mobility) and spatial fmity (immobility). Based on field research and data analysis from the Masan Free Export Zone (MAFEZ) in South Korea, it is argued that TNCs do not always withdraw from EPZs in reaction to wage costs and growing labor militancy. Higher labor costs can be overridden by other advantages: existing physicalkocial inhstructure, tax benefits, fured assets, localized labor skills and technology, cultural proximity, and advantages from geographical proximity to market, raw materials, and TNCs’headquarters. This paper criticizes the overly simplistic view of capital mobility. However, TNCs that choose to remain in the EPZs use both upgrading and cheapening strategies, and their remaining does not necessarily result in upgrading labor skills or improving labor conditions. This article raises a critical question of the firm-centered view of the global enterprise literature and the local embeddedness literature of TNCs on workers’welfare. It emphasizes the important role of firms and of unions in training workers for purposes of technology and skill upgrading. 相似文献
8.
Although it is not long since the Chinese real estate appraisal agencies appeared in China, they have been developing quickly. With the increase of real estate appraisal portfolio, the number of real estate appraisal agencies in the market also increases. However, because of the loose management in this field, there are many operation that are not standard and not allowed by the operating rules. This paper tackles this problem on the basis of the special relationship between real estate appraisal agencies and banks, analyzes the present situation in this field in detail and puts forward the strategies accordingly. 相似文献
9.
甘蔗细茎野生种核心种质构建 总被引：2，自引：0，他引：2
以来自我国10个省(市)、自治区的540份甘蔗细茎野生种无性系为材料,根据采集地信息及其在20对SSR引物上的分子标记数据和15个表型性状资料,开展核心种质构建研究。不同取样量(5%、10%、20%、30%、40%、50%、60%、70%、80%和90%)分析表明,10%的取样比例可获得70%以上的变异保留比例,是较好的核心种质取样规模;对5种采集地分组取样策略(等量法、简单比例法、平方根比例法、对数比例法和多样性比例法)和2种无分组取样策略(最大变异保留法和随机抽样法)比较表明,简单比例法获得的核心种质代表性最好,为最优取样策略。最后,在简单比例法取样筛选出的54份核心样品中,又通过定向选择补充了6份具有优异表型性状的材料,构建了含60份无性系的甘蔗细茎野生种核心种质,分子和表型检验都表明本研究所构建的核心种质具有较好的代表性和遗传多样性。 相似文献
10.
ZHANG Ying - bao 《保鲜与加工》2006,(4):114-117
The value-at-risk(VaR) model is a statistical model to estimate and control financial risk,and used to measure the most probable loss on the next deal stage of financial asset portfolio.Based on the principle of the value-at-risk,in this paper the value-at-risk is to be applied to the risk evaluation of construction project.Assuming the sub-project prices abide by the BQ model are random variable which conform to normal distribution,this paper has built up the portfolio of project according to biding and quoted price of construction project,and adopted the variance-covariance method to measure the value-at-risk of the biding and quoted price in order to provide a feasible risk analysis tool for the evaluation of construction project bidding. 相似文献
11.
准确的费率厘定对推动农作物保险发展至关重要,它将有助于实现作物保险“农民买得起、保险公司赔得起、政府补得起”。通过使用正态分布、卡方分布、Weibull分布、Logistic分布、Gamma分布、极小值分布和非参数核密度分布等7种模型对福建省水稻单产的概率分布进行了拟合,并对应地厘定了水稻单产保险的纯费率。并利用经验费率法厘定了水稻单产的纯费率。最终在获得8个纯费率估计值的基础上,应用算术平均厘定费率方法,求得福建水稻单产保险纯费率为1.2922%,据此计算了福建水稻单产保险的费率。结果能为开展福建水稻区域产量保险厘定费率时予以参考。 相似文献
12.
A.M. Whitbread M.J. Robertson P.S. Carberry J.P. Dimes 《European Journal of Agronomy》2010,32(1):51-58
Over the past 20 years, farming systems modelling has become an accessible tool for developing intervention strategies targeted at smallholder farmers in southern Africa. Applying the Agricultural Productions Systems sIMulator (APSIM) to credibly simulate key soil and crop processes in highly constrained, low yielding maize/legume systems has led to four distinct modes of use: (i) to add value to field experimentation and demonstration; (ii) in direct engagement with farmers; (iii) to explore key system constraints and opportunities with researchers and extension agencies; and (iv) in the generation of information for policy makers, bankers and insurance institutions. Examples of application in each of these modes are presented. Despite being demonstrated as an excellent tool for developing intervention strategies and extension material, the use of simulation is limited by a lack of competent local users. Better co-operation within the simulation community, sharing of climate, soil and crop parameterisation and validation datasets, and focussing of efforts on using models to benefit smallholder farmers are suggested as ways of increasing the use and relevance of simulation. Substantial investment in the training of agriculturalists and the further science development of systems simulation is required to tackle the enormous challenges facing agricultural development in the region. 相似文献
13.
In the arable farming region Flevoland in The Netherlands climate change, including extreme events and pests and diseases, will likely pose risks to a variety of crops including high value crops such as seed potato, ware potato and seed onion. A well designed adaptation strategy at the farm level can reduce risks for farmers in Flevoland. Currently, most of the impact assessments rely heavily on (modelling) techniques that cannot take into account extreme events and pests and diseases and cannot address all crops, and are thus not suited as input for a comprehensive adaptation strategy at the farm level.To identify major climate risks and impacts and develop an adaptation measure portfolio for the most relevant risks we complemented crop growth modelling with a semi-quantitative and participatory approach, the Agro Climatic Calendar (ACC), A cost-benefit analysis and stakeholder workshops were used to identify robust adaptation measures and design an adaptation strategy for contrasting scenarios in 2050.For Flevoland, potential yields of main crops were projected to increase, but five main climate risks were identified, and these are likely to offset the positive impacts. Optimized adaptation strategies differ per scenario (frequency of occurrence of climate risks) and per farm (difference in economic loss). When impacts are high (in the +2 °C and A1 SRES scenario) drip irrigation was identified as the best adaptation measure against the main climate risk heat wave that causes second-growth in seed and ware potato. When impacts are smaller (the +1 °C and B2 SRES scenario), other options including no adaptation are more cost-effective.Our study shows that with relatively simple techniques such as the ACC combined with a stakeholder process, adaptation strategies can be designed for whole farming systems. Important benefits of this approach compared to modelling techniques are that all crops can be included, all climate factors can be addressed, and a large range of adaptation measures can be explored. This enhances that the identified adaptation strategies are recognizable and relevant for stakeholders. 相似文献
14.
推进贫困地区女性就业脱贫对增强女性自我发展能力,促进家庭可持续发展具有重要意义。本文借鉴参与式农村评价法、可持续生计框架理论,对新疆喀什地区2020年脱贫县典型乡镇进行实地抽样调查,从个人禀赋、家庭特征与社会保障层面对少数民族女性脆弱性贫困进行分类识别,建立少数民族女性弹性就业可持续生计资产评价体系,测算其家庭生计资产,对比分析女性弹性就业生计资产稳定性差异,探讨贫困地区少数民族女性弹性就业脱贫效益与生计可持续诉求。研究表明：（1）研究区农村女性弹性就业意愿较为强烈,个人资源禀赋、家庭环境以及社会保障因素均可产生脆弱性贫困风险。（2）研究区4县农村女性弹性就业生计资产指数水平总体偏低且差异较大。（3）依据资产指数与脆弱性特征,将莎车县、叶城县界定为个人禀赋、家庭环境脆弱型区域,英吉沙县、伽师县界定为家庭环境、社会保障脆弱型区域,据此提出相应对策建议,实现优化女性生计资产配置,维护就业脱贫可持续发展。 相似文献
15.
This article has discussed the problem of an arbitrage about an portfolio in an unequilimarket and got a determinable theorem about existence of an arbitrage about an portfolio. According to this theorem,an arbitrage about portfolio is not existing if there exists a respect martignal measure.A structural result about existence of arbitrage about an portfolio in a market is gotten. All results represent the existence of an arbitrage about an portfolio is related closely to the type of market. 相似文献
16.
农户对农机保险的认知、需求与参保意愿研究————基于江苏省的实证分析 总被引：1，自引：1，他引：0
本文通过对江苏地区的实地调研,运用统计分析、单因素方差分析等方法研究认为：农机事故发生后,农户不仅需要第三者责任险种,更需要农机驾驶操作人员人身保险;目前农机保险的覆盖率较低,农户对农机保险政策的认知程度较低;农户对农机保险政策的认知会对参保意愿产生显著影响。 相似文献
17.
XIANG Wei-min 《保鲜与加工》2004,(7):152-154
The high-speed development demands new real estate investment theory. Using the experiences of the Western developed countries for reference in property investment and modern portfolio investment theory, the paper introduces the conception of systematic and unsystematic risk with the centre of risk and profit. Consequently, the model of real estate base on least risk and anticipated profit is studied in the discussion of its concerned hypothesis and determining the concerned parameters. With living example analysis, we reach the conclusion that portfolio investment risk is smaller than single investment if the investor adjusts the tactics of portfolio investment. 相似文献
18.
We point out the shortage of optimal portfolio model which was suggested by Markowitz in 1952, this theory has been less useful in practice because one must know indifference curves of investors. We propose safety first criteria and get optimal portfolio model under this criteria. Two methods are given to do with probability condition, and we obtain optimal portfolio. At last, we give safety first index to portfolio performance management. 相似文献
19.
Jonathan R. Barton 《Asia Pacific viewpoint》2006,47(3):366-380
Abstract: Chile and New Zealand both depend on their natural resource bases for their exports. This situation characterises the historical condition of the resource periphery. Despite similar processes of globalisation in their fisheries sectors since the 1970s, the ways in which public and private policies and management strategies have been brought to bear on sustaining the resource base differ considerably. In light of the strategic economic agreement between the two countries (and Singapore and Brunei) signed in 2005, these contrasts reveal that multiple options exist for countries in the resource periphery to enhance their national development by working with comparative advantages alongside competitive advantages introduced into the sector. Chile’s explosive growth in aquaculture and its low levels of public and private concern for more sustainable fisheries is contrasted with New Zealand’s more sustainable approach to natural resource management through a range of instruments and commitments. The principal conclusion is that resource periphery producers should capitalise on their natural assets, but only within the context of a sustainable strategy that promotes and enforces responsibility. The current crisis in global capture fisheries is both an opportunity and a warning in this regard. 相似文献
20.
福建农业企业投保农业保险意愿的实证分析 总被引：1，自引：1，他引：0
运用SPSS 13.0统计软件对福建省141份农业企业投保农业保险问卷调查的数据进Logistic回归处理,对影响福建农业企业投保农业保险意愿的影响因素进行实证分析,结果显示：养殖效益、能繁母猪保险投保便利程度、对保险公司的看法这3个因素对农业企业投保农业保险的意愿有显著影响,存栏数、养殖投入程度、是否受周边企业影响、是否更易得到信贷支持等4个变量对农业企业投保农业保险的意愿影响不大。并提出增加农业企业经营效益、发展有特色的农业保险产品、加强保险服务等措施,以促进农业保险的进一步发展。 相似文献