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11.
The interest in agricultural soils as global storage of carbon has increased in recent years, along with the prospect of farmers' participation in payment schemes under the Clean Development Mechanism of the Kyoto protocol. Thus, a better understanding of agricultural practices that can increase soil carbon and enhance the livelihoods of farmers is necessary, particularly in smallholder farming systems of West Africa. This study evaluates different crop management strategies both by their capacity to sequester carbon in agricultural soils and by their contribution to household income. A case study in Wa, Upper West Region of Ghana is used to test 48 different cropping strategies by means of a crop simulation model and a household-level multiple-criteria optimisation model. Each cropping strategy is evaluated after a 20-year simulation period by its capacity to accrue carbon in the soil, by its economic performance at the plot-level, and by its contribution to the farm income with and without carbon payments. A set of best management practices that concomitantly increase soil carbon and farm income are identified and classified by their cost of investment.  相似文献   
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In this paper, we focus on the question to what extent machine learning (ML) tools can be used to support systematic literature reviews. We apply a ML approach for topic detection to analyze emerging topics in the literature—our context is accounting and finance research in the Asia–Pacific region. To evaluate the robustness of the approach, we compare findings from the automated ML approach with the results from a manual analysis of the literature. The automated approach uses a keyword algorithm detection mechanism whereby the manual analysis uses common techniques for qualitative data analysis, that is, triangulation between researchers (expert judgement). From our paper, we conclude that both methods have strengths and weaknesses. The automated analysis works well for large corpora of text and provides a very standardized and non-biased way of analyzing the literature. However, the human researcher is potentially better equipped to evaluate current issues and future trends in the literature. Overall, the best results might be achieved when a variety of tools are used together.  相似文献   
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你的继续改进工作在取得初步成效后,是否仍以预定计划为中心而未取得实际进展?你们公司是否把长期存在的问题作为开展工作的动力?你们是否在不同的场所经常重复分析同样的问题?在你们公司里,对于什么是可靠性的问题,每个人是否都有不同的理解?我们公司在拉丁美洲5个国家中都有许多油田和气田,并且都遇到了困难,为了创造持久的利润,我们决定对不断改进的方法全面地进行标准化。改进的方法有:(1)把问题和机遇按轻重缓急依次排列起来;(2)分析这些问题和机遇的根本原因(RC);(3)开发和实施解决方法;(4)继续研究上述各种方法的利润。  相似文献   
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A number of developing countries around the world have recently liberalized once highly protected regimes through privatization programs and by reducing impediments to market trade. Many of these countries have adopted an antitrust policy as an integral component of their market reforms. Recent assessments of trade liberalization programs show disappointing results. Such outcomes contradict long-held beliefs that free trade is sufficient to generate competitive outcomes in small economies. Antitrust advocates view these underwhelming achievements as further justification for extensive antitrust enforcement. We argue instead that the failure of liberalization suggests not the correctness but the inappropriateness of the enactment of antitrust policies. The continuance of market power after liberalization is due primarily to lobbying activities by producer interest groups to establish nontariff barriers rather than to collusive practices among producers. Interest groups find cartelization and rent seeking as substitutes in raising prices above competitive levels. Accordingly, the establishment of antitrust serves to improve the relative attractiveness of seeking nontariff barriers. Antitrust policies are ineffective in challenging the emergence of nontariff barriers and thus may have the unintended consequence of promoting anticompetitive activities.  相似文献   
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Chewing gum was foremost an American invention, Michael Redclifttells us in Chewing Gum: The Fortunes of Taste, a brief yetserious and engaging book that details how chewing gum cameto occupy a distinct place in the rise of American consumerism.Perhaps nothing signified the triviality of consumerism as chewinggum. It possessed what Redclift calls an "ephemeral quality,"it was an easily replicable mass product, and provided instantgratification. This ephemerality was complicated by  相似文献   
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Dina Berger's The Development of Mexico's Tourism Industry:Pyramids by Day, Martinis by Night traces the historical foundationsof the tourism industry in México from 1928 to the earlypost–WW II period. The author argues that during thisperiod tourism became a medium for the modernization and economicdevelopment of México. According to Berger, the "creationof a tourist industry emerged as the cornerstone to state-ledmodernization programs in the late 1920s at the height of revolutionary  相似文献   
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Forty-four Scottish small and medium-sized high-technology manufacturing firms were surveyed regarding their technology strategies and the impact of regional- and site-specific infrastructure requirements on their location behavior. An empirically derived typology of technology content for high-technology firms was developed via cluster analysis and utilized, together with selected technology and manufacturing strategy variables, to investigate whether significant linkages existed between these variables and firms' related location decisions. Results suggest that location decisions are directly correlated to a firm's competitive strategy and that they should actually be considered a dynamic dimension of strategy rather than a static one-time choice.  相似文献   
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This paper discusses the role of clusters and subcontracting as factors in the evolution of small and medium firms in Indonesia during the last quarter century. It is argued that a number of such firms have become successful exporters of rattan furniture, wood furniture and garments on the strength of subcontracting relationships with foreign investors and buyers as well as agglomeration economies achieved by clustering in selected locations. Examples are provided to show that clustered enterprises are more likely to be in the exports business and to adopt product and process innovations as compared to more dispersed firms. Public policy support for fostering subcontracting links and cluster formation is also discussed.  相似文献   
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