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1.
Changes are investigated in the Australian agricultural economics profession, 1975–99, using a conventional microeconomics framework of supply and demand for agricultural economists. Aggregate exogenous factors such as changes in the agricultural and tertiary education sectors, and changes in beliefs about the proper role of government, have changed both supply and demand conditions for agricultural economists. The profession has responded by shifting its focus away from narrowly agricultural policy, especially marketing policy, towards areas of market failure such as environmental and natural resource issues.  相似文献   

2.
This article discusses the principal claims made for the Resource Rent Tax (RRT) by Garnaut and Clunies-Ross (1975, 1979) relating to its efficiency and potential for generating tax revenue relative to other forms of resource taxation, and also their concern about the greater uncertainty of these revenues. An analysis of the risk-return trade-off associated with a shift from ad valorem royalties to an RRT finds this shift to be worthwhile. Estimates are also provided of the foregone tax revenue from the North West Shelf associated with the use of ad valorem royalties rather than the RRT.  相似文献   

3.
Climate change is likely to have substantial effects on irrigated agriculture. Extreme climate events, such as droughts, are likely to become more common. These patterns are evident in median projections of climate change for the Murray–Darling Basin in Australia. Understanding climate change effects on returns from irrigation involves explicit representation of spatial changes in natural stocks (i.e., water supply) and their temporal variability (i.e., frequency of drought states of nature) and the active management responses to capital stocks represented by mitigation and alternative adaptation strategies by state of nature. A change in the frequency of drought will induce a change in the allocation of land and water between productive activities. In this paper, a simulation model of state-contingent production is used to analyze the effects of climate change adaptation and mitigation. In the absence of mitigation, climate change will have severe adverse effects on irrigated agriculture in the Basin. However, a combination of climate mitigation and adaptation through changes in land and water use will allow the maintenance of agricultural water use and environmental flows. Le changement climatique risque d’avoir des répercussions considérables sur l’agriculture irriguée. Les phénomènes climatiques extrêmes, tels que les sécheresses, risquent de devenir plus fréquents. Ces phénomènes sont mis en évidence dans les projections médianes du changement climatique établies pour le bassin de Murray–Darling, en Australie. Pour comprendre les répercussions du changement climatique sur le rendement des cultures irriguées, il faut disposer d’une représentation explicite des changements spatiaux qui touchent les stocks naturels (c.-à-d. l’approvisionnement en eau) et de leur variabilité temporelle (c.-à-d. les états de la nature de la fréquence de la sécheresse) et assurer une gestion active des stocks de capital grâce à des stratégies d’atténuation et d’adaptation selon l’état de la nature. Une variation de la fréquence des sécheresses entraînera une modification de l’allocation des terres et de l’eau entre les activités de production. Dans le présent article, nous avons utilisé un modèle de simulation états-contingences pour analyser les répercussions des stratégies d’atténuation du changement climatique et d’adaptation à ce changement. En l’absence de stratégies d’atténuation, le changement climatique aura des répercussions défavorables sur l’agriculture irriguée dans le Bassin. Toutefois, des stratégies d’atténuation combinées à des stratégies d’adaptation comprenant des changements dans l’utilisation des terres et de l’eau permettront de maintenir l’utilisation de l’eau à des fins agricoles et les débits environnementaux.  相似文献   

4.
Infrastructure, agglomeration, product and input markets, fiscal attributes, and labor markets of local communities influenced food manufacturing location decisions in the lower 48 United States, 2000–2004. Negative binomial regression and spatial clustering methods forecast food processor location patterns at the county level. Noncore counties are at a comparative disadvantage with respect to attracting most food processors, but nonmetropolitan counties adjacent to urban areas may be attractive investment sites for footloose, supply, and demand-oriented food manufacturers.  相似文献   

5.
The view of the commons as archaic, ‘backward’ and ‘irrational’ institutions for the management of resources has now been revised in favour of a more positive one, for both past and present societies. Indeed, it is clear that the commons had multifarious ecological and economic benefits for both medieval and early modern rural societies in Western Europe. That being the case, many scholars have seen the increasing expropriation of the commons in the transition to the early modern period as a sign of increasing inequality characterizing pre‐industrial Europe, and many have lamented the loss of communal grazing privileges connected to processes such as land enclosure – pushing poor peasants into the ‘abyss’ with the removal of their final form of welfare. However, in this paper it is argued that the social distribution of the benefits to the commons were rarely, if ever, entirely equitable. In fact, in many historical contexts the benefits of the commons could also be highly restricted – crystallizing and entrenching stratifications themselves, and even serving as the ‘vehicle’ of further inequality. The expropriation of the commons did not necessarily make Western European rural societies any more unequal.  相似文献   

6.
Wind energy expansion across rural areas interacts with various interests at the local level, generating multiple reactions within communities. The Eólica del Sur wind farm implementation pathway in Mexico is a paragon of different positions vis-à-vis this industry after trying to install 132 wind turbines in other towns since 2006. This paper argues that there is a bias in studies of the politics of wind energy development in favour of oppositional voices, as opposed to groups that endorse wind energy expansion or that have stakes in the sector but neither support nor oppose wind projects per se. Based on fieldwork conducted over three years and semi-structured interviews with Eólica del Sur stakeholders, the paper argues that different responses to wind energy are linked to contrasting ownership claims over land in the region and competing notions of the institutions that should legitimize these claims.  相似文献   

7.
This Address considers a range of issues relating to the contribution of meat consumption and livestock production to global warming, given the need highlighted by the Committee on Climate Change (CCC) to reduce global GHG emissions by over 50% by 2050. The IPCC Climate Change 2014 report recognised that demand oriented measures may also contribute to GHG mitigation. The paper reviews a number of studies which examine demand‐led mitigation potentials, and concludes that such estimates ignore the market effects of changes in meat consumption habits or demand oriented policies. A simple partial equilibrium model of beef, poultry, pig and ovine meats is developed for the major regions of the world to explore the impact of a range of scenarios which might reduce meat consumption and GHG emissions. These include emissions taxation, long‐term trends in reduction of red meat consumption in developed economy regions, and supply side improvements in livestock emissions intensities. The paper discusses problems associated with many published demand elasticities suitable for incorporation into a market model, problems of selection from widely varying published estimates and their appropriateness for longer‐run projections. The dearth of published supply elasticity estimates is also highlighted. The modelling concludes that economic and population growth to 2050 without any mitigation measures will lead to a 21% increase in per capita meat consumption and a 63% increase in total consumption and GHG emissions by 2050. However, the mitigation projections from the scenarios explored only generate a 14% reduction in cumulative emissions from the baseline 2050 projections, insufficient to meet the CCC target.  相似文献   

8.
The development of shrimp aquaculture in Ecuador caused massive ecological damage, particularly in the mangrove areas. Consequently, the livelihood of the population linked to this ecosystem was disrupted. Faced with environmental dispossession, the population engaged in the defence of mangroves by articulating a national grassroots movement. In 2007, this movement implemented a novel identity politics strategy that linked mangrove ecosystem to indigeneity, and positioned itself as the ‘Ancestral Peoples of the Mangrove Ecosystem’ (PAEM). This paper focuses on the political economy of the shrimp‐farming industry in Ecuador, showing the interrelation between environmental dispossession, collective action and identity formation, and analysing how this novel political identity is understood by different members of this social movement. The work argues that PAEM refers to a category that is closely linked to the processes of mangrove defence, in direct opposition to the shrimp farmer's identity, rather than to an essentialized conception of identity based on ‘nativeness’.  相似文献   

9.
In this article, I propose to study environmental degradation and the deterioration of the health of workers and other inhabitants in regions of Mexico where intensive fruit and vegetable production for export has been developed. My proposition is that to understand the unsustainability of such agricultural practices in all their complexity, it is necessary to analyse historically the total agri‐food field of relations established by producers, distributors, and consumers in codependency with the natural environment. This analysis of the agri‐food field allows a multidimensional and multiscale study to be conducted of the hierarchical distribution of power and of economic benefits among the different social actors of the food system. This analysis also allowed us to study the development of the capitalist regime without going into the dichotomy of centre and periphery and to propose that it is a decentralized process with a multiplicity of locations that operates on the basis of mutual associations and influences between human and non‐human elements, with the active participation of a great variety of independent, collective, and institutional actors who have differentiated motivations, ranges of power and scales of value. The case study of Mexican export agriculture was the result of long‐term research based on a wide review of regional studies, field work statistics, and archives in Mexico and the United States. This cross‐border study makes it possible to identify asymmetrical transnational relations in a context in which the Mexican government has renounced its territorial and agri‐food sovereignty and Mexican consumers face greater vulnerability.  相似文献   

10.
11.
This paper briefly presents the results of a total factor productivity (TFP) study of South African commercial agriculture, for 1947‐1997, and illustrates some potential pitfalls in rate of return to research (ROR) calculations. The lag between R&D and TFP is analyzed and found to be only 9 years, with a pronounced negative skew, reflecting the adaptive focus of the South African system. The two‐stage approach gives a massive ROR of 170%. The predetermined lag parameters are then used in modeling the knowledge stock, to refine the estimates of the ROR from short‐ and long‐run dual profit functions. In the short run, with the capital inputs treated as fixed, the ROR is a more reasonable 44%. In the long run, with adjustment of the capital stocks, it rises to 113%, which would reflect the fact that new technology is embodied in the capital items. However, the long‐run model raises a new problem since capital stock adjustment takes 11 years, 2 years longer than the lag between R&D and TFP. If this is assumed to be the correct lag, the ROR falls to 58%, a best estimate. The paper draws attention to the possible sensitivity of rate of return calculations to assumed lag structure, particularly when the lag between changes in R&D and TFP is skewed.  相似文献   

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