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This paper represents a dynamic specification of the Almost Ideal Demand System (AIDS) based on recent developments on cointegration techniques and error correction models. Based on Greek meat consumption data over the period 1958–1993, it was found that the proposed formulation performs well on both theoretical and statistical grounds, as the theoretical properties of homogeneity and symmetry are supported by the data and the LeChatelier principle holds. Regardless of the time horizon, beef and chicken may be considered as luxuries while mutton‐lamb and pork as necessities. In the short‐run, beef was found to have price elastic demand, pork an almost unitary elasticity, whereas mutton‐lamb, chicken and sausages had inelastic demands; in the long‐run, beef, and pork were found to have a demand elasticity greater than one, whereas mutton‐lamb, chicken, and sausages still had inelastic demands. All meat items are found to be substitutes to each other except chicken and mutton‐lamb, and pork and chicken. 相似文献
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Stathis Klonaris 《国际粮食与农业综合企业市场学杂志》2014,26(1):49-66
Inverse demand systems explain price variations as functions of quantity variations. This article presents a dynamic inverse almost ideal demand system (AIDS) model based on recent developments on cointegration techniques and error correction model. The case of fish landed at Greek seaports appears to suit this model well. The results indicate that the underlying distance function is homothetic whereas the own-quantity flexibilities suggest that the responses of price to own-quantity changes are inelastic. Finally, the results of cross-quantity uncompensated flexibilities suggest that the substitution possibilities among fish grades are rather limited. The Allais interaction intensities verified the substitutability among fish grades as well. 相似文献
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“本”和“末”是中国经济思想史中的一对特定范畴,“本”泛指农业,“末”泛指工商业。所谓“本”、“末”观,就是指古人对农工商业及其相互关系的看法,其中包括“重农轻工商”的观念。古希腊虽然没有与中国相对应的“本”、“末”概念,但却不乏对于农工商业及其关系的思考。本文即选取古希腊的几位有代表性的思想家或立法者作为研究对象,试图对古希腊人的“本”、“末”观进行一些粗略的考察,以期获得一个总体性的认识。本文的基本结论是,与中国先秦的情况相似,古希腊的思想家或立法者无不认为农业是立国之本,工商业居于次要地位,而且,对待“末”业的态度也存在着相对宽容和相对严厉两种倾向。产生这种现象的根本原因在于中希文明所处的相似的历史发展阶段及其社会经济状况。 相似文献
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《国际粮食与农业综合企业市场学杂志》2013,25(4):5-23
Small economies with a narrow resource base need open international trade more than a large country with a wide range of resources. This paper discusses the role of open markets and trade in development of LDC's. It emphasizes the importance of constitutional law that guarantees basic freedoms of choice as the foundation of open market systems. Governments most useful role in development is to provide essential public services and infrastructure and to provide the legal and economic environment for opportunity, incentives and innovation. 相似文献
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《国际粮食与农业综合企业市场学杂志》2013,25(2-3):7-28
Abstract This paper aims to identify the critical factors that support European food retailers' internationalisation via an investigation of the importance of Dunning's eclectic paradigm advantages (ownership, location and internalisation). Senior managers from seven firms that operate in the Greek food multiple retail sector were interviewed, and three propositions were put on test. In general, the findings indicate the critical role of the internalisation advantage during the international expansion of European food multiple retailers into that market. The findings also reveal that this advantage is the main superior and sustainable competitive element that European food multiple retailers possess when competing with local firms. The latter can be considered as an extension to the findings of previous studies that have exclusively emphasised the importance of ownership advantage factors in the course of the retail internationalisation process. 相似文献
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Buffer areas can be created for improving the sustainable management of Protected Areas (PAs). These areas differ in their governance both from the park and from the rest of the territory.In the present study, we used choice experiments for identifying a set of political environmental measures to be applied in the buffer areas of the Trasimeno Regional Park (Region of Umbria). Particularly, we focused our attention on the role played by the farmers in those areas. We used choice experiments in a planning context, highlighting their ability to elicit the preferences of a group of producers and to identify several classes with different orientations, through the Latent Class Approach. We individuated classes of farmers with very different preferences about the possible measures to be applied in the contiguous areas. Our work provides two interesting indications for park management: the interest of some farmers in creating contiguous areas for the Trasimeno Park and the opportunity for policy makers to propose very different measures because farmers’ interests are not uniform. 相似文献
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Productivity growth is conventionally measured by indices representing discreet approximations of the Divisia TEP index under the assumption that technological change is Hicks-neutral. When this assumption is violated, these indices are no longer meaningful because they conflate the effects of factor accumulation and technological change. We propose a way of adjusting the conventional TFP index that solves this problem. The method adopts a latent variable approach to the measurement of technical change biases that provides a simple means of correcting product and factor shares in the standard Tornqvist-Theil TFP index. An application to UK agriculture over the period 1953–2000 demonstrates that technical progress is strongly biased. The implications of that bias for productivity measurement are shown to be very large, with the conventional TFP index severely underestimating productivity growth. The result is explained primarily by the fact that technological change has favoured the rapidly accumulating factors against labour, the factor leaving the sector. 相似文献
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N. Emmanuel Tambi 《Agricultural Economics》2001,26(2):135-147
The need for additional information on household demand for meat and fish in Cameroon is addressed. Probit analysis involving the Heckman selectivity correction procedure is used to estimate the effects of individual and household characteristics on demand for beef, chicken, pork and fish. Results indicate that fish is a relative necessity in Cameroon and is often substituted for beef and chicken by households whose profiles include being of low income levels, having large household sizes, are of middle age and are less educated. Whereas chicken and pork substitute each other, they are each complementary to beef. The profiles of households likely to purchase beef include being married, middle age, educated and of the Muslim faith. Profiles for households most likely to increase their purchases of chicken include being of high income levels and are public sector employed. Some policy implications are provided. 相似文献
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《国际粮食与农业综合企业市场学杂志》2013,25(2):123-143
Abstract This paper aims to investigate changes in the structure of the Spanish quality beef industry in response to the significant decline in beef consumption happened over the last few decades. The role of product differentiation, mechanisms and factors involved in it, are specially studied. We use focus groups and a survey to examine the outlook for the organization of the beef industry, and trends in the development of product differentiation mechanisms and vertical co-ordination strategies. Results reveal the existence of a restructuring process that is being implemented in two ways: Protected Geographical Indications (PGI) and Quality Certified Brands (QCB). Each strategy forms its own entry barriers: the origin of calves in the case of PGI and farm size in QCB; they are therefore complementary rather than competitive. 相似文献
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In some Asian countries, the pursuit of high yields often leads to excessive application of chemical fertilizer, negatively impacting the environment. We use the Choice Experiment approach to investigate the preferences of rice farmers in Taiwan for a potential Agri-environmental Scheme (AES), which would aim at an optimization of fertilizer use. We are especially interested in how such an AES would optimally be designed and whether it is possible to reduce its costs by offering the farmers lower payments in exchange for an eco-label. We find that farmers have a significant preference for an eco-label and would accept lower payments in exchange. They also prefer to retain some flexibility and keep some land out of the AES. Moreover, we also find that a share of the farmers would never join an AES. 相似文献
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The paper presents the case of biodiversity misuse in urban and rural areas of Greece during the years of economic recession (2008–2019). The hypothesis addressed is that if fiscal crisis and economic recession lead to biodiversity misuse, then, even strong conservation strategies such as those allegedly implemented in developed countries may not be resilient to macro-economic shocks. Empirical data and official statistics are combined in an interpretive way. Mechanisms that enable criminal misuse of biotic resources in protected areas, forests and coastal areas of the country are defined and quantified through specific examples of illegal hunting, logging and fishing. They are defined as the Active Sampling effect, the Market De-concentration effect and the Underground Market effect of crisis. Such crime enablers are not, most likely, country-level singularities; they can be generalized both through their trans-boundary effects and in view of their interference with international conservation strategy and Law. 相似文献
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The aim of the article is to review the official Greek target indicators, i.e. those standards that are included in the current planning legislation (Official Government Gazette 285/D/5.3, 2004), and are used for the planning of private uses, such as manufacturing, wholesale trade, retail trade, offices, and housing. The article elaborates on the general typology of urban indicators and, more specifically, it addresses the methodology for the calculation of target indicators. Part of this methodology is utilized for the evaluation of the official target indicators that are currently in force. This evaluation is mainly based on the comparison of target indicators with the respective state indicators of years 2004, 2008, and 2012, and is carried out for each category of private urban uses separately. The article concludes on the inappropriateness of the values legislated as target indicators, and stresses the need for their immediate revision. 相似文献
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Although the transmission line network is relatively comprehensive in many countries, there are new needs to develop the networks due to the increased consumption of energy and new decentralized energy sources. However, compared with other large-scale infrastructure in the landscape, there has been relatively little research on the perceptions of transmission lines. Consequently, the aim of this study was to analyse how transmission lines are perceived in comparison with other landscape elements and how the perceptions of existing transmission lines differ from those concerning new lines. Finally, the heterogeneity of the perceptions was examined with the aid of the latent class method. The study was based on survey data from an urban fringe community in southern Finland. The results confirmed the presupposition that transmission lines are generally perceived as negative landscape elements, both when long-established and when new. However, the perceptions among the residents were heterogeneous. This heterogeneity was explained with environmental attitudes and leisure activities as well as knowledge and land ownership. The results have implications for planning, public communication and participation related to transmission lines, as well as other visually dominating man-made structures in the landscape. 相似文献
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Food Demand in Mexico: An Application of the Amemiya-Tobin Approach to the Estimation of a Censored Food System 总被引:1,自引:0,他引:1
Diansheng Dong Brian W. Gould and Harry M. Kaiser 《American journal of agricultural economics》2004,86(4):1094-1107
The modeling of micro-level food demand patterns requires not only allowing for household heterogeneity, but also addressing the problem of censoring. In this article, we present a variation of the Amemiya-Tobin framework for estimating a censored demand system that allows for household heterogeneity. The unique aspect of our approach is the use of a procedure that ensures the adding up of both latent and observed expenditure shares and also imposes expenditure share nonnegativity. This system is applied to an analysis of food demand based on a random sample of urban Mexican households. 相似文献