全文获取类型
收费全文 | 39315篇 |
免费 | 881篇 |
专业分类
财政金融 | 7305篇 |
工业经济 | 3035篇 |
计划管理 | 6522篇 |
经济学 | 8780篇 |
综合类 | 455篇 |
运输经济 | 237篇 |
旅游经济 | 613篇 |
贸易经济 | 6058篇 |
农业经济 | 1990篇 |
经济概况 | 5118篇 |
信息产业经济 | 2篇 |
邮电经济 | 81篇 |
出版年
2021年 | 218篇 |
2020年 | 374篇 |
2019年 | 500篇 |
2018年 | 703篇 |
2017年 | 687篇 |
2016年 | 650篇 |
2015年 | 481篇 |
2014年 | 719篇 |
2013年 | 3768篇 |
2012年 | 1008篇 |
2011年 | 1105篇 |
2010年 | 916篇 |
2009年 | 1090篇 |
2008年 | 1114篇 |
2007年 | 980篇 |
2006年 | 918篇 |
2005年 | 910篇 |
2004年 | 853篇 |
2003年 | 873篇 |
2002年 | 774篇 |
2001年 | 794篇 |
2000年 | 792篇 |
1999年 | 718篇 |
1998年 | 713篇 |
1997年 | 703篇 |
1996年 | 720篇 |
1995年 | 657篇 |
1994年 | 692篇 |
1993年 | 663篇 |
1992年 | 653篇 |
1991年 | 691篇 |
1990年 | 625篇 |
1989年 | 509篇 |
1988年 | 532篇 |
1987年 | 494篇 |
1986年 | 546篇 |
1985年 | 790篇 |
1984年 | 748篇 |
1983年 | 734篇 |
1982年 | 701篇 |
1981年 | 641篇 |
1980年 | 600篇 |
1979年 | 626篇 |
1978年 | 537篇 |
1977年 | 469篇 |
1976年 | 383篇 |
1975年 | 377篇 |
1974年 | 357篇 |
1973年 | 315篇 |
1972年 | 279篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
991.
Robert J. Bloomfield Mark W. Nelson Steven D. Smith 《Review of Accounting Studies》2006,11(2-3):377-416
This paper presents and tests a model of the price dynamics that arise when investors fail to recognize the redundancy of unrealized gains and losses (“UGLs”) that are correlated with the firm’s past returns. Consistent with the predictions of our model, our experiment shows that a firm’s prices and earnings become highly volatile when correlated investment is large and correlated UGLs are made salient by comprehensive income reporting. The results suggest that including correlated UGLs in performance numbers could induce violations of weak-form efficiency that exacerbate volatility in share prices and earnings. 相似文献
992.
We examine the performance of 160 pharmaceutical acquisitions from 1994 to 2001 and find evidence that on average acquirers realize significant positive returns. These returns are positively correlated with prior acquirer access to information about the research and development activities at target firms and a superior negotiating position. A unique Desperation Index is employed to determine the current status of a firm's internal productivity. We find that firms experiencing declines in internal productivity or which are more desperate are more likely to engage in an outsourcing-type acquisition in an effort to replenish their research pipelines. 相似文献
993.
We analyze firms’ choice of exchange to list equity and exchanges’ choice of listing standards when insiders have private information about firm value, but outsiders can produce (noisy) information at a cost. Exchanges are populated by two kinds of investors, whose numbers vary across exchanges: sophisticated (low information production cost) investors and ordinary (high–cost) investors. While firms are short-lived, exchanges are long-lived, value-maximizing agents whose listing and disclosure standards evolve over time. The listing standards chosen by exchanges affect their “reputation,” since outsiders can partially infer the rigor of these standards from the post-listing performance of firms. We show that, while exchanges use their listing standards as a tool in competing for listings with other exchanges, this will not necessarily lead to a “race to the bottom” in listing standards. Further, a merger between two exchanges may result in a higher listing standard for the combined exchange relative to that of either of the merging exchanges. We develop several other implications for firms’ listing choices and resulting valuation effects, the impact of competition and co-operation among exchanges on listing standards, and the optimal regulation of exchanges. 相似文献
994.
We examine the economic implications arising from a bank using a VaR-constrained mean-variance model for the selection of its trading portfolio as a consequence of the Basle Capital Accord. Surprisingly, we show that when a VaR constraint is imposed, it is plausible that certain banks will end up selecting ‘riskier’ portfolios than they would have chosen in the absence of the constraint. Accordingly, regulators such as the Basle Committee on Banking Supervision should be aware that allowing a bank to use VaR to determine its minimum regulatory capital may increase its fragility. Alternatives to VaR-based bank capital regulation that mitigate or even preclude its perverse implications are presented. 相似文献
995.
Trade costs, firms and productivity 总被引:7,自引:0,他引:7
This paper examines the response of U.S. manufacturing industries and plants to changes in trade costs using a unique new dataset on industry-level tariff and transportation rates. Our results lend support to recent heterogeneous-firm models of international trade that predict a reallocation of economic activity towards high-productivity firms as trade costs fall. We find that industries experiencing relatively large declines in trade costs exhibit relatively strong productivity growth. We also find that low-productivity plants in industries with falling trade costs are more likely to die; that relatively high-productivity non-exporters are more likely to start exporting in response to falling trade costs; and that existing exporters increase their shipments abroad as trade costs fall. Finally, we provide evidence of productivity growth within firms in response to decreases in industry-level trade costs. 相似文献
996.
R. Lloyd-jones J. Maltby M. J. Lewis M. Matthews 《Accounting, Business & Financial History》2006,16(1):69-98
This paper uses a case study of BSA to examine corporate governance in a holding company during the interwar years. Recognised as generally progressive in its policy towards financial disclosure, nevertheless BSA attracted hostile criticism from its shareholders, showed little evidence of developing administrative coordination and provided limited detailed information concerning the performance of its subsidiaries. Voice did have an effect in changing the pattern of financial reporting, but even under the pressure of its banker, when financial circumstances deteriorated in the early 1930s, BSA was only prepared to change personnel while organisational structures remained in place. 相似文献
997.
998.
Brian Low Author Vitae Wesley J. Johnston Author Vitae 《Industrial Marketing Management》2006,35(6):676-689
This paper first defines and then presents a model of “relationship equity” for business markets. It points out that the potential benefits of managing relationship equity have been largely ignored and that a general model and stream of relevant research questions could be useful to marketing and relationship practitioners. The model developed considers the special case of key account management as antecedent, two different types of moderator variables, relationship equity as a perception by the buyer, and switching behavior via adoption of new telecommunication services as a result of this perception. The model is used as a basis for developing a number of working propositions. 相似文献
999.
Matthew J. Robson Author Vitae Stavroula Spyropoulou Author Vitae Author Vitae 《Industrial Marketing Management》2006,35(5):556-566
This research introduces and delineates the concept of insecurity in IJV relationships. We define relationship insecurity as a parent firm's concerns about the continuance of the alliance arrangement and its partner's future provision of need satisfaction. According to interdependence theory, exchange partners that experience high dependence inevitably experience this ‘anxiety of dependency’, and the emergence of insecurity can destabilize the working relationship from within. We develop a conceptual model of the drivers and consequences of relationship insecurity in IJVs. Our survey results from 125 IJVs indicate that focal firm dependence and partner firm dependence both negatively affect insecurity, though the former is the dominant predictor. This surprising finding implies IJV partners experience ‘anxiety of low dependency’. The results suggest insecurity not only reduces directly IJV performance, but also lowers the quality of interpartner communication, which in turn dampens performance. Implications of these results are discussed. 相似文献
1000.
In many developing countries, the potential benefits from adopting a transgenic variety developed by a multinational corporation are limited by the crop’s small production base. This paper presents an ex-ante evaluation of the economic impact of herbicide resistant transgenic rice in a small developing country, Uruguay. To fully account for the multinational’s market power, the firm’s seed markup is assumed to affect the adoption rate for the variety. Stochastic simulation techniques are employed to understand how potential benefits may vary with changes in technology, yield, costs, and adoption parameters. The results indicate a $1.82 million mean net present value for producers from the development and utilization of transgenic rice in Uruguay and $0.55 million for the multinational. These relatively small multinational firm benefits suggest that a firm will not undertake significant efforts to develop transgenic varieties adapted to local conditions without either strategic partnerships with local institutions or access to wider regional markets. 相似文献