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51.
52.
Bear beta     
We test whether bear market risk, time variation in the probability of future bear market states, is priced. We construct an Arrow–Debreu security that pays off in bear market states (AD Bear) from traded Standard & Poor’s (S&P) 500 index options and use its returns to measure bear market risk. We find that bear beta (exposure to bear market risk) has a strong relation with expected stock returns that is robust, persistent, and remains strong among liquid and large stocks. Historical bear beta also predicts future bear market risk exposure. We conclude that bear market risk is priced in the cross section of stock returns.  相似文献   
53.
A decision-analytic model for avoiding a risky activity is presented. The model considers the benefit and cost of avoiding the activity, the probability that the activity is unsafe, and scientific tests or studies that could be conducted to revise the probability that the activity is unsafe. For a single decision maker, thresholds are identified for his or her current subjective probability that the activity is unsafe. These thresholds indicate whether the preferred course of action is avoiding the activity without further study, engaging in the activity without further study, or conducting a test or research programme to obtain additional information and following the result. When these thresholds are low, precautionary action is more likely to be warranted. When there are multiple stakeholders, differences in their perceptions of the benefit and cost of avoidance and differences in their perceptions of the accuracy of the additional information provided by the test or research programme combine to create differences in their decision thresholds. Thus, the model allows for the rational expression of differences among parties in a way that highlights disagreements and possible paths to conflict resolution. The model is illustrated with an application to phytosanitary standards in international trade and examined in terms of recent empirical research on lay perceptions of risks, benefits, and trust. Further research is suggested to improve the elicitation of model components, as a way of fostering the legitimate application of risk-based decision analysis in precautionary policy making.  相似文献   
54.
In the late 1960s and early 1970s there was a strong revival of interest in the role of factor-market distortions in those branches of our subject which rely on the Lerner–Samuelson two-by-two model of production. Among the legacies from that period were several comparative statical propositions which seemed counterintuitive or paradoxical. However, the revival lost momentum when confronted with Neary's observation that the major paradoxes are associated with unstable equilibria and therefore rarely observed. On the other hand, there are now seen to be several errors in Neary's analysis. For example, in the important case of a closed economy (and, by interpretation, in the case of a large open economy) he overlooked the fact that paradoxes can be associated with stable equilibria.  相似文献   
55.
There is no generally accepted definition of internationalization or globalization. The present paper offers three alternative definitions, in terms of (i) an enlargement of the set of trading countries, (ii) an enlargement of the set of traded commodities, or (iii) the international sharing of technology. It is shown that if each country adopts a Paretian scheme of internal compensation then internationalization in each sense leaves at least one country better off, and that if international compensation is admitted then internationalization in each sense makes every country better off.  相似文献   
56.
Competitive Effects of Disclosure in a Strategic Entry Model   总被引:1,自引:1,他引:0  
We investigate the welfare consequences of incumbent firms' mutual disclosure of cost information when there is a threat of entry from a firm not required to disclose its private cost information. New effects of disclosure are observed relative to no-entry models, with the result that incumbents' expected output is a decreasing function of the disclosure level. However, further analysis shows that increased disclosure usually increases incumbent expected profits and decreases expected consumer surplus, despite the additional entry effect of disclosure. Such analytical derivations provide objective input to the FASB as they attempt to predict the competitive effects of changing mandated disclosure requirements.  相似文献   
57.
58.
Current road safety programs and thinking in Australia are constructed within a paradigm that tends to accept existing cultural arrangements. Such programs therefore, favour symptomatic solutions and technical and/or physical solutions as a way forward. Fundamental redesign of cultural arrangements is necessary in order to challenge the “culture of speed”. Our research is developing a holistic, social ecological model for reconnecting road safety with communities that value quality of life and slower ways of being. Improving road safety through reduction in the volume and speed of motorised traffic is integrally related to enhancing health and fitness, reducing greenhouse gas emissions, and improving neighbourhood planning and community cohesion. In this regard, community-based travel behaviour change initiatives are deserving of much greater attention in the road safety area. As well as these changes at the personal and community scale, policy changes to urban and transport planning that address the broader issues of sustainability in an era of climate change and peak oil can also be linked to improvements in road safety.  相似文献   
59.
The extent to which CEOs influence firm performance is fundamental to scholarly understanding of how organizations work; yet, this linkage is poorly understood. Previous empirical efforts to examine the link between CEOs and firm performance using variance decomposition, while provocative, nevertheless suffer from methodological problems that systematically understate the relative impact of CEOs on firm performance compared to industry and firm effects. This study addresses these methodological problems and reexamines the percentage of the variance in firm performance explained by heterogeneity in CEOs. The results of this study suggest that in certain settings the ‘CEO effect’ on corporate‐parent performance is substantially more important than that of industry and firm effects, but only moderately more important than industry and firm effects on business‐segment performance. Copyright © 2008 John Wiley & Sons, Ltd.  相似文献   
60.
The key contribution of this paper is to critically analyse advances made since the introduction of hospitality as a higher education subject, to capture contemporary thinking, and to support the recognition of the intellectual benefits for hospitality management theory and practices of a curriculum informed from a social science-based studies perspective. The benefits of this inter-relationship are demonstrated through the inclusion of an illustration informed by historical means of enquiry, which applies hermeneutical analysis and interpretation of St. Benedict's Rule (c. 530 A.D.). This serves to tangibly demonstrate the academic rigour, value, and educational gains achievable through a symbiotic relationship between hospitality studies and hospitality management.  相似文献   
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