全文获取类型
收费全文 | 36319篇 |
免费 | 733篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 7088篇 |
工业经济 | 2651篇 |
计划管理 | 5562篇 |
经济学 | 7979篇 |
综合类 | 507篇 |
运输经济 | 268篇 |
旅游经济 | 638篇 |
贸易经济 | 5661篇 |
农业经济 | 1759篇 |
经济概况 | 4871篇 |
信息产业经济 | 3篇 |
邮电经济 | 66篇 |
出版年
2021年 | 205篇 |
2020年 | 416篇 |
2019年 | 633篇 |
2018年 | 782篇 |
2017年 | 780篇 |
2016年 | 779篇 |
2015年 | 474篇 |
2014年 | 816篇 |
2013年 | 3720篇 |
2012年 | 1049篇 |
2011年 | 1203篇 |
2010年 | 1052篇 |
2009年 | 1119篇 |
2008年 | 1075篇 |
2007年 | 929篇 |
2006年 | 854篇 |
2005年 | 715篇 |
2004年 | 743篇 |
2003年 | 693篇 |
2002年 | 752篇 |
2001年 | 687篇 |
2000年 | 727篇 |
1999年 | 704篇 |
1998年 | 666篇 |
1997年 | 649篇 |
1996年 | 606篇 |
1995年 | 552篇 |
1994年 | 572篇 |
1993年 | 607篇 |
1992年 | 635篇 |
1991年 | 614篇 |
1990年 | 503篇 |
1989年 | 456篇 |
1988年 | 431篇 |
1987年 | 441篇 |
1986年 | 454篇 |
1985年 | 677篇 |
1984年 | 654篇 |
1983年 | 617篇 |
1982年 | 563篇 |
1981年 | 511篇 |
1980年 | 529篇 |
1979年 | 476篇 |
1978年 | 406篇 |
1977年 | 373篇 |
1976年 | 309篇 |
1975年 | 356篇 |
1974年 | 281篇 |
1973年 | 274篇 |
1972年 | 198篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
Using Turkish industry-level data from 1983 to 1990, we find that politically organized industries receive both higher protection and promotion than unorganized ones. Tariff rates are decreasing (increasing) in the import-penetration ratio and the absolute value of the import-demandelasticity for organized (unorganized) industries. Subsidy rates are decreasing (increasing) in the output-supply elasticity for organized (unorganized) industries. The results are consistent with the predictions of the Grossman–Helpman model and its extension in this paper. The mix of protection and promotion is inversely related to the ratio of their respective marginal deadweight cost measures. 相似文献
32.
Here we consider the hedging roles of a price futures contract versus a revenue futures contract. In the absence of idiosyncratic output risk, the revenue contract almost always dominates the price contract. Idiosyncratic output risk provides conditions under which the price contract should dominate. When production risk is largely idiosyncratic, a producer with an anticipated long actuals position might combine a long revenue futures position with a short price futures position. © 2004 Wiley Periodicals, Inc. Jrl Fut Mark 24:503–512, 2004 相似文献
33.
Vendor Managed Inventory (VMI) involves the vendor making the replenishment decision for products supplied to a customer based on various inventory and supply chain policies. Information sharing between supply chain members is required in VMI. Sometimes VMI decisions are delayed and/or the information shared is inaccurate. This research examines the effects of information delay and accuracy, and the sharing of sales and forecast information in a VMI environment facing stationary and nonstationary demand. The simulation experiments show the impact of information delay, information inaccuracy, and information sharing on a variety of performance measures, including inventory levels and fill rates. 相似文献
34.
This study examines how two dimensions of strategic orientation (customer and competitor orientation) influence logistics and market performance. Two capabilities, operational flexibility and collaboration, are studied. Data were collected from manufacturers working with third party logistics providers. The findings suggest that customer and competitor orientations have different influences upon performance when leveraged through the capabilities. Competitor orientation, while having a detrimental direct effect on logistics performance, appears to be the better strategic approach, when supported with operational flexibility since it results in enhanced logistics (efficiency) and market (effectiveness) performance. Customer orientation, on the other hand, greatly improves logistics performance, i.e., internal efficiency. 相似文献
35.
Several papers have been published demonstrating the positive effects a single, reputable ally has on evaluations of a focal brand. Interestingly, little research has been published examining the effects of multiple brand allies. We examine the effect of an alliance with two, one, or zero well-known brand allies on evaluations of a previously unknown focal brand. The presence of a single brand ally significantly increased perceived quality and hedonic and utilitarian attitudes. While multiple alliances improved focal brand evaluations relative to the no ally condition, the second ally did not increase evaluations relative to the single ally condition. 相似文献
36.
37.
38.
39.
The notion that prices impound a wide array of information, including market expectations, has led to earnings forecast models conditioned on prices. Yet, presumably, analysts' forecasts capture both public information and certain private information not previously impounded in prices. Accordingly, price-based models are seemingly an inefficient, and less effective, source of expecta-tions. This article investigates this hypothesis using financial analysts', price-based, and naive forecasts. Results indicate that analysts' forecasts (1) are at least as accurate as price-based and naive models, and (2) yield better expectations for market tests relating returns and earnings. These inferences are robust across different information environments. The evidence suggests that analysts either possess private information or are more effective information processors, or both. 相似文献
40.
Countries on fixed exchange rates sometimes use uniform tariffcum subsidy (UTCS) schemes as a way of achieving a real depreciationwithout disturbing the nominal exchange rate. A potential drawbackof this policy in relation to an across-the-board devaluationis that a UTCS scheme provides incentives for illegal trade.Using an optimizing model with currency convertibility and illegaltrade. I find that welfare is lower under a UTCS scheme thanunder a corresponding across-the-board devaluation and thatin some cases the real exchange rate actually appreciates inresponse to an increase in the UTCS rate. 相似文献