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1.
To assess the attainable greenhouse gas (GHG) mitigation potential from crop production in China's most important grain production region, the North China Plain (NCP), single farm environmental and economic performances of 65 winter wheat–summer maize (WW–SM) producing households were determined. The results revealed a huge heterogeneity among farms, with up to five times higher environmental impact of worst compared to best performing farms. Astonishingly no trade-off between productivity and sustainability could be identified in the region, with high-yield farms emitting no different amounts of GHGs per hectare compared to low-yield farms. Building on cluster analysis, with farms grouped according to their economic and environmental performance into ‘poor’, ‘fair' and ‘good’ producers, the regional GHG mitigation potential was estimated. Under the scenario assumption that all grain in the NCP is produced under ‘good’ production conditions, 21% and 7% of GHG could be mitigated in wheat and maize production, respectively. The study shows that in the NCP, exemplary for China's rapidly developing agricultural sector, the crop management skills of a substantial share of farmers could obviously not keep pace with the massive input intensification. Among others, farmer–farmer trainings are recommended to close the gap in crop production performance among producers.  相似文献   

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Taking a capability approach perspective, our paper aims at advancing our understanding of poverty in Afghanistan, and at identifying the most deprived, including persons with disabilities, in order to address the first Sustainable Development Goal to eradicate poverty in all its forms. We used data from a national survey carried out in Afghanistan in 2005. We calculated one index using two weights structures, the adjusted headcount ratio, part of the multidimensional poverty measures. Following a participatory process, we identified and validated 13 indicators clustered in seven dimensions of poverty, including three usually neglected dimensions. Findings suggest that exploring various domains of deprivation would better inform poverty eradication policies than an approach focused only on income. Our results also demonstrate that nearly all Afghan adults are deprived in at least one dimension and those residing in rural areas, from minority ethnic groups, women, elderly people and persons disabled at birth or of an unknown cause are the poorest of the poor. Efforts to improve well-being must acknowledge these inequalities so that public policies in Afghanistan aiming at alleviating poverty take these disparities into account, when facing a reduction in available resources.  相似文献   

4.
This paper contributes to the discussion on food sovereignty and the state by analysing the case of Ecuador. It presents a theoretical framework and literature review focused on the question of food sovereignty, the state and agrarian political economy. The case study of Ecuador, one of a handful of countries that has attempted to institutionalize food sovereignty in state policy, examines the political processes that led to the institutionalization of food sovereignty and the rural development and agricultural policies of the ‘post‐neoliberal’ government of Rafael Correa. The analysis of the Ecuadorian case concludes that the implementation of public policies reflecting food sovereignty principles has largely proven elusive, with the exception of some institutional changes and developments at the local levels of the state.  相似文献   

5.
Scientific and political interest in measures of human progress and development is increasing, but the indicators are far from capturing all we need to know. They place Western liberal democracies at the leading edge of progress, and present them as models of development; Western nations typically occupy all but a few of the top 20 places in progress indices. However, indicators are measuring modernisation rather than optimal quality of life or well-being; modernity’s benefits are counted but its costs are underestimated. In particular, the measures do not adequately acknowledge the ‘psychosocial dynamics’ of human societies: the complex interactions and relationships between the subjective and objective worlds. Unless we pay more attention to these dynamics, we will not develop solutions which match in scale the problems they are intended to address. Indicators need to allow a transformation in our worldview and beliefs as profound as that which gave rise to modernity.  相似文献   

6.
The establishment of the Economic and Monetary Union was expected to determine price convergence in the market of the European Union, leading to the equilibrium theorized by the law of one price. This article investigates prices convergence in the coffee market among European importers. Coffee is not only a tradable and traded good, but also one of the most valuable traded commodities. We account for different qualities of coffee in a hedonic regression model, which isolate and remove the effects of factors that might affect price dispersion. Adjusted import prices result to be significantly different between European Member States, and do not support the hypothesis of a deepening European market integration.  相似文献   

7.
We examine the firm‐specific determinants of technical efficiency in Australian mining companies using data envelopment analysis (DEA). To do so, we employ panel data sourced from individual mining companies listed on the Australian Securities Exchange (ASX) over the period 2010–2014. To ensure valid statistical inference in the presence of serial correlation between DEA efficiency scores, we apply Simar and Wilson's two‐stage bootstrap method. We find that ownership concentration, firm size, firm age, product portfolio, product diversification and growth status significantly contribute to efficiency gains. However, other firm‐specific factors, such as capacity utilisation, financial risk and overseas operations appear to have limited impact on the technical efficiency of mining firms.  相似文献   

8.
The current study explains why Dutch forest expansion policy is at risk of failure. To study the forest expansion implementation process we have chosen to further operationalize Matland's policy type implementation model to an extended and comprehensive typology of relevant implementation characteristics. In addition, a case study methodology with mixed-method design was used to collect and analyze the data. The Dutch forest expansion policy is currently an example of symbolic implementation. The symbolic implementation is a consequence of the absence of central guidance, the legislative complexity, the low policy stability, the lack of supporting conditions for policy innovation, the lack of regulatory responsiveness and the latent policy at state level and in many provinces. Nevertheless, the transferable development rights method of the province of Limburg is a promising innovation and forest expansion still happens, which is mainly the result of a good internal and external communication, an effective actor network of forest expansion advocates and the willingness to realize negotiated project aims that lead to a win–win situation for all actors involved. Nonetheless, it is expected that the forest expansion targets will be not reached, unless most of the above shortcomings are solved.  相似文献   

9.
Why do men and women adopt agricultural technologies at different rates? Evidence from Ghana suggests that gender‐linked differences in the adoption of modern maize varieties and chemical fertilizer result from gender‐linked differences in access to complementary inputs. This finding has important policy implications, because it suggests that ensuring more widespread and equitable adoption of improved technologies may not require changes in the research system, but rather introduction of measures that ensure better access for women to complementary inputs, especially land, labor, and extension services.  相似文献   

10.
This study suggests UK equivalent variation (EV) gains of €8.9 billion on withdrawal from the EU budget. Factoring in associated trade facilitation costs from the loss of UK access to the single market, annual UK EV losses could be as high as €14.0 billion, with the EU‐28 facing a corresponding loss of €40.4 billion. Interestingly, the extrapolated UK gain arising from withdrawal from the ‘CAP’ component of the EU budget exceeds estimated lower and upper bound trade facilitation costs exclusively on EU agrofood trade. Accordingly, the UK should realistically remain as an EU member, although continue to lobby for reductions in the CAP budget.  相似文献   

11.
In September 2012, the Niger Delta (Nigeria) experienced a severe flood. By conducting a differences-in-differences estimation (as well as qualitative interviews), this paper studies the effects of the flood and of relief aid provided by an oil company on relational capability, a concept which covers bonding, bridging, and linking aspects of social capital (SC). We find that the flood increased bonding SC, measured as trust in the community, but reduced bridging SC, measured as participation together with unknown people in common-interest projects. The aid distributed to some people, on the other hand, was associated with higher bridging SC. The aid was not distributed according to flood damages but mostly according to social status. Our findings emphasize how a disaster can affect the repartition of bonding and bridging SC in the short term. They also highlight the need to build social cohesion in vulnerable communities from a longer-term and institutional perspective.  相似文献   

12.
The government of Ukraine aims to transform the country into an ‘agricultural superpower at the international level’ with the hope that the sector will gain high foreign currency earnings and become ‘the engine of national economic development’. The large agribusiness corporations have willingly responded to these calls. However, placing hope solely in the corporate sector is inadequate as the key role of agriculture to create business diversity and achieve rural social and environmental objectives will remain unfulfilled. Many other national economies have experienced ‘the offensive’ of capital on agriculture during the twentieth century, with associated negative consequences, thus encouraging them to adopt more balanced agrarian policies which benefit the whole rural population. Utilisation of Ukrainian agricultural potential as an economic growth engine requires a fundamental change in the interpretation of its purpose, which is currently focused on profit‐making export‐oriented commercial activity. The multifunctional nature of the sector needs to be emphasised, the purpose of which is not only the production of agricultural and food products, but also the creation of public benefits, such as the development opportunities and means for existence for 14 million Ukrainian rural inhabitants, maintenance of ecological balance, regeneration of soil fertility and preservation of rural landscapes.  相似文献   

13.
Experiences in smallholder contexts indicate frequent mismatches between technologies introduced and needs of farmers who must make complex decisions in reallocating their limited resources under highly risky ecological and market contexts. This study proposes a cost- and time-effective, easy-to-implement approach to identify farmers’ priorities and critical intervention areas, and presents its application in guiding an agroforestry strategy in Rwanda. It was found that different tree species have distinctive enabling vs. constraining conditions under different agroecological contexts in the perspective of smallholder farmers. Tree species preferred by farmers were not necessarily widely adopted if multitudes of conditions were not enabling. The essential conditions for sustainable adoption include: quality materials/inputs are available; technologies are compatible with existing local farming systems; they are resilient to climate risks/resistant to pests-diseases; management is not complicated; and, there is guaranteed access to markets. The results show that there will not be a silver bullet national strategy to scale up agroforestry. Instead a matrix kind of strategies -to promote enabling conditions and address constraining conditions for priority species in specific agroecologies- will be required. The proposed concept should be further refined for wider agricultural technology transfer debates to break the myths of low uptakes by smallholders.  相似文献   

14.
We use panel data techniques and information on state-level Food Stamp Program characteristics to obtain unbiased estimates of the impact of Food Stamp Program participation on weight status and health care spending among nonelderly adults. Our results suggest that program participation by women leads to a 5.9% (p = 0.07) increase in their likelihood of overweight and obesity, which is smaller than previous estimates, and to higher medical expenditures. The direct effect of program participation on medical spending through higher discretionary income is significantly larger than the indirect effect through changes in weight status.  相似文献   

15.
The biophysical benefits of zero tillage (ZT) are well documented in the literature. However, the literature on its economic benefits, especially in the context of small and medium‐scale farmers in the temperate developing world is scanty. Using a study of 621 wheat farmers in Syria, we provide empirical evidence on the impacts of adoption of ZT on farm income and wheat consumption. We use propensity score matching (PSM) and endogenous switching regression (ESR) approaches to account for potential selection biases. After controlling for confounding factors, we find that adoption of the ZT technology leads to a US$ 189/ha (33%) increase in net crop income and a 26 kg (34%) gain in per capita wheat consumption per year (adult equivalent) – an indication of meaningful changes in the livelihoods of the farm households. Besides the biophysical and environmental benefits documented elsewhere, our results suggest that adoption of ZT can also be justified on economic and food security grounds. Therefore, ZT can have sizeable impacts in transforming the agricultural sector in the temperate developing world provided that the technology is well promoted and adopted.  相似文献   

16.
River floodplains are significant environmental resources in that they provide multiple ecosystem services. However, river floodplains are/tend to be overdeveloped because indirect-use values linked with ecosystem services are overlooked by private landowners. In a case study of the Ouse catchment, it turns out that river floodplains tend to be overdeveloped in upstream areas because of a unidirectional spatial externality. We set a simple model that considers both direct- and indirect-use values to analyse the social optimisation. The essential point is that we must consider two types of environmental externalities related to the ecosystem services of river floodplains to make decisions on floodplain development. First, the development of river floodplains has opportunity costs in terms of lost ecosystem services. Second, the development of floodplains increases flood risks to people downstream (imposes a unidirectional spatial external costs). Theoretically, we can easily deal with the problem by zonal economic policies: zonal taxes or subsidies (price policies) and zonal marketable permits or transferable development rights (quantity policies). On the practical side, however, there are so many problems. Then, such approaches are too complex to use. First of all, we have to specify real complicated economic and physical systems which show non-linearity, irreversibility, site-specific relationships, and inter-dependency between systems and sites. Secondly such policies should be ‘zonal’, which might impose substantial transaction costs. In order to apply them to real situations, we have to determine the appropriate number of zones, their sizes and geographical shapes, and then set appropriate rates or amounts of permits in each zone. Furthermore, the determination of zones is difficult because of the trade-off between the internalisation of externalities and implementation costs of policies, which are also related to political frictions and market failure.  相似文献   

17.
Our aim is to explore who pays the costs and who reaps the benefits of maintaining a dual-market system of genetically modified organisms (GMOs) and non-GMOs. We analyze the welfare effects of the introduction of consumer "hatred" given GMO technology and the introduction of GMO technology given hatred. Making alternative assumptions of competitive and then monopolistic supply, we recognize that identity preservation (IP) of non-GMOs creates costs for IP and non-IP producers. We model these costs as depending on the sizes of the two supply channels.  相似文献   

18.
This study uses U.S. farm household survey data to examine how participation in the Conservation Reserve Program (CRP) affects farm household economic well-being. Further, the study also examines the effects of CRP participation on farm household consumption, income, and imputed savings. In contrast to previous studies that assume the relationships are homogenous across the population, quantile regression is used to investigate the association between CRP participation across the entire distribution of farm household consumption and income. Empirical findings suggest that the effect of CRP participation on household economic well-being differs across the income and consumption distribution. For households in the lower percentiles of the distribution, the CRP participation is associated with an increase in household consumption, but a decrease in farm household income and savings. In contrast, farm households at the median and higher income and consumption quantiles, participation in CRP is associated with lower levels of household consumption and income, but with higher levels of savings.  相似文献   

19.
We analyze growth and diversification of U.S. dairy farms by examining changes in ten size cohorts and new entrants through three successive censuses. We reject Gibrat's law and the mean reversion hypothesis of growth. Growth rates appear bimodal where the smallest and largest farm cohorts grow fastest. All cohorts diversify but the largest farms do not diversify as rapidly as medium-sized farms. New entrants are generally large, and they diversify more rapidly than comparably sized incumbents do. These data suggest that scale economies persist even for the largest cohort of U.S. dairy farms and scale economies dominate scope economies for large farms.  相似文献   

20.
Considerable research has focused on understanding how upland farmers adjust land‐based livelihoods to the influences of agrarian change in Southeast Asia. In the process, an ‘upland bias’ has emerged where researchers focus narrowly on the uplands as localities with distinct, coherent features, neglecting how families engage place, social relations and ethnicity as they access opportunities in proximate spaces. This paper considers how the Tagbanua – long considered an upland swidden people – have ‘stepped back’ from swidden agriculture due to declining yields and debt to harvest the lucrative grouper (e.g. Plectropomus leopardus). We show how Tagbanua families on Palawan Island have adjusted swidden as they negotiate social relations, ethnic cleavages and economic barriers to effectively engage the grouper industry. Rather than cast such farmers and fishers as ideal types in place, we argue that how they negotiate social relations creates new livelihood opportunities in varied environments, reinforcing the dynamic, recursive context of agrarian change.  相似文献   

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