排序方式： 共有77条查询结果，搜索用时 15 毫秒
41.
The aim of this paper is to deliver an econometric panel data analysis on economic complexity by using annual data from 133 countries during the period from 1984 to 2018. This work admits that spatial heterogeneity and discontinuity may affect economic complexity and that there is a more accurate supranational level of analysis and economic policy. The paper shows that variables such as GDP per capita and economic vulnerability strongly affect the economic complexity of a country, while human capital and innovation rate are less significant. The potential of natural resources seems to be negatively correlated with economic complexity. 相似文献
42.
This paper discusses the COVID-19 pandemic as an opportunity to reconsider the foundations of the global aviation system. There is much evidence that air transport creates opportunities as well as risks. While the former accrue to businesses and individuals, risks are imposed on society. Pandemics, in which aviation has a role as a vector of pathogen distribution, as well as the sector's contribution to climate change are examples of long-standing negative externalities that continue to be ignored in assessments of aviation's economic performance and societal importance. As commercial aviation has shown limited economic resilience throughout its history, this short paper questions whether a return to business-as-usual, supported by very significant State aid payments, is desirable. The volume growth model championed by industry and aviation proponents may have to be replaced with an alternative model of a slimmed air transport system that is economically less vulnerable and accounting for its environmental impacts. 相似文献
43.
巩固脱贫成果和解决相对贫困是2020年后中国长期减贫面临的主要挑战,为此东部地区率先进行了实践创新。本文以2003—2016年中国东部80个地级市的数据为样本,利用扶贫改革试验区的设立作为准自然实验,使用合成控制法识别了试验区政策的减贫效应、影响机制及作用渠道。结果显示:政策的实施显著实现了收入减贫与多维减贫,即农户收入得到提高和跌入多维贫困概率降低;丽水试验区的减贫效果最明显,阜新和清远的减贫效果一般;试验区内家庭的各类收入增加,贫困脆弱性和慢性贫困降低。进一步分析表明,减贫效果差异的宏观影响机制是包容性增长,政策主要通过保险覆盖、金融参与和社会网络等渠道对家户增收和减贫产生间接影响。本文的结论对于制定差别化扶贫政策、创新贫困监测机制、构建多元协同扶贫机制以及建立城乡统筹反贫困体系都有重要参考价值。 相似文献
44.
Alan McKinnon 《Journal of Business Logistics》2006,27(2):227-250
Twice over the past 30 years Britain has suffered severe paralysis of its road freight system. This paper explores the likely consequences of a complete cessation of trucking services over the period of a week. By analysing inventory levels, lead times, dependence on road transport and opportunities for substitution in critical sectors, it forecasts a rapid rate of economic collapse. 相似文献
45.
Mauricio Gallardo 《Journal of economic surveys》2018,32(4):1074-1105
In the economic literature on poverty, various methods have been proposed for measuring a phenomenon known as ‘vulnerability’. However, after more than a quarter century of research, no consensus has been reached on how to identify such vulnerable individuals within a given population. Some misunderstandings have also arisen from the overlapping of other closely related concepts, such as the expectation of being poor, expected poverty, multi‐period poverty and risk exposure. This paper offers a detailed conceptual discussion on vulnerability to poverty and its related elements, reviewing a wide range of identifying criteria provided in the literature. It is found that according to the state of the art in this field of research, two key elements stand out in identifying vulnerable individuals: an expected well‐being below the poverty line and a relevant risk of falling into poverty due to downside deviation from a reference level of well‐being. The traditional classification of vulnerability approaches has been updated into four groups: (i) those that stress the element of exposure to risk; (ii) those that emphasize the element of expected poverty; (iii) those that define vulnerability through a utility gap and (iv) those that are supported by a mean‐risk dominance criterion. 相似文献
46.
Loss or degradation of communal lands can have major implications for people’s livelihoods and well-being in rural underdeveloped areas. Mining operations are one driver of land loss with negative implications for people. This study assesses the livelihood effects of open-cast mining on a rural communal land village that lost 8 000 ha of land and compares it to another village nearby that did not. The results suggest that the loss of land and the ecosystem services they provide has negatively affected people’s livelihood strategies and outcomes. On average, only 23 % of households in the affected village had crop fields compared to an adjacent village, that did not lose land to the mine, where 90 % of households had a crop field. This accounts for substantial losses in income through agriculture, both as cash earnings and savings, and negatively affects household food security. As a result of the mine the affected community has also lost access to grazing, and now many households must pay to graze their livestock in other areas. Furthermore, the option to harvest several key natural resources (provisioning services) or non-timber forest products (NTFPs) such as wild fruits and vegetables, edible insects, fuelwood, and to a lesser extent resources like reeds and medicinal plants were lost due to the mine, negatively impacting local livelihoods. NTFPs are important for rural livelihoods as they allow for cash saving, income generation and act as a safety net or fall-back option during times of increased vulnerability. The findings also give a good indication of changes in agriculture and resource use over time and the varying reasons for this. Other negative effects from the mine included; cracking of houses due to blasting, dust pollution, water contamination, social and cultural effects, community alterations and conflicts, and very little was seen to be gained in terms of employment through Social Labour Plans (SLPs) or corporate social responsibility (CSR) initiatives. Households in the village affected by the mine lose approximately R 15 000 per year through losses of agricultural potential and the ability to collect NTFPs, which is larger than the annual cash incomes for most households. This value is likely to be an underestimate of the total value lost, as reductions in grazing potential and the loss of supporting, regulating and cultural ecosystem services were not included in this figure. This study highlights the importance of considering land access and associated land-based livelihoods in rural communal land areas in the context of disturbance and change. Recommendations for future assessments and policy on compensation for rural communities are made and issues relating to CSR are discussed. 相似文献
47.
Building resilience is critical for metropolitan land use planning to strengthen the ability to cope with and minimize climatic disaster risks. Challenges still remain for metropolitan agencies in identifying the components or metrics for measuring resilience. Particularly, uncertainties in climate change and diversification in local contexts compel urban planners to mainstream community participation, indigenous knowledge and local attributes into the resilience assessment. This article aims to propose a novel methodology for assessing resilience, which can encourage stakeholder participation and communicate planners in shaping metropolitan land use policies. Using the Taichung metropolis, Taiwan as the study area, this article created a resilience metric called the Climatic Hazard Resilience Indicators for Localities (CHRIL) that is appropriate for use in a policy context. Then, this metric combined a fuzzy multicriteria decision analysis with a participatory geographic information system approach to measure and map resilience to climatic hazards. Through the participation of experts, local officers and community members, a multivariate analysis was applied to explain why low resilience areas occur in specific locations. Moreover, we performed a cluster analysis to group the areas into several types of resilience and revealed the relationship between the resilience factors and overall local development patterns. Results show that conflicts and tradeoffs may exist between some resilience factors, especially socioeconomic vulnerability and adaptive capacity. The findings provide stakeholders and policy-makers with a better governance structure to design and synthesize appropriate patchworks of planning measures for different types of resilience areas to reduce climatic hazard risks. 相似文献
48.
Under the banner of a \"New Green Revolution for Africa,\" agricultural intensification programs aim to make smallholder agriculture more productive as well as \"climate smart\". As with Green Revolutions in Asia and Mexico, agricultural innovations (hybrid seeds, agronomic engineering, market linkages,and increased use of fertilizer and pesticides) are promoted as essential catalysts of agriculture-led economic growth. Intensification programs are now frequently linked to Climate Smart Agriculture (CSA), which attempts to build resilience and reduce greenhouse gas emissions while increasing crop yields. This article considers who and what is resilient in Africa’s Green Revolution. We report on a multi-season study of smallholder food producers' experiences with Rwanda’s Crop Intensification Program (CIP) and related policies that aim to commercialize subsistence agriculture while implementing CSA. . We suggest that there are fundamental limits to the climate resilience afforded by CSA and development efforts rooted in Green Revolution thinking. Our findings illustrate that such efforts foreground technology and management adjustments in ways that have reduced smallholder resilience by inhibiting sovereignty over land use, decreasing livelihood flexibility, and constricting resource access. We put forth that rural development policies could better promote climate-resilient livelihoods through: 1) adaptive governance that enables smallholder land use decision-making; 2) support for smallholder food producers’ existing agro-ecological strategies of intensification; 3) participatory approaches to visualize and correct for inequalities in local processes of social-ecological resilence Such considerations are paramount for meeting the United Nations Sustainable Development Goals and building climate-resilient food systems. 相似文献
49.
利用数量技术方法构建了新兴产业市场脆弱性模型,并且用Matlab软件模拟了市场脆弱性演化趋势,利用文献法总结了管理者过度自信的测量方法和成因,用案例研究方法从市场脆弱性和管理者过度自信双视角分析了无锡尚德破产重组的原因。研究得出：新兴产业市场存在市场脆弱性问题,它受政策、偏好和技术三因素的影响显著;当前,新兴产业处于发展阶段,新兴产业的企业应该具备动态竞争能力,不宜采用规模化和成本化战略,宜采用专业化、小规模和差异化的柔性战略;管理者过度自信会让企业决策偏离对市场脆弱性的客观认识,从而导致企业在决策中采取更冒险的决策行为;战略性新兴产业市场脆弱性和管理者过度自信最终导致了无锡尚德的失败。最后,给出了一些管理建议。 相似文献
50.
金融素养对家庭金融脆弱性的影响具有不确定性,既可能通过增加家庭的资产和收入,降低家庭金融脆弱性;也可能通过增加家庭的负债与支出,提升家庭金融脆弱性。本文首先从金融知识、金融行为、金融态度三个维度测算金融素养,再基于\"资不抵债\"、\"入不敷出\"两个维度量化家庭金融脆弱性,最后构建实证模型,以CFPS(2014)为样本,量化分析金融素养对家庭金融脆弱性的影响。实证研究表明:金融素养的增加显著降低家庭金融脆弱性及\"资不抵债\"的概率;在金融素养的三个维度中,金融知识降低金融脆弱性、缓解资不抵债的作用更为显著。 相似文献