全文获取类型
收费全文 | 25055篇 |
免费 | 480篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 4764篇 |
工业经济 | 1824篇 |
计划管理 | 3724篇 |
经济学 | 5484篇 |
综合类 | 386篇 |
运输经济 | 201篇 |
旅游经济 | 455篇 |
贸易经济 | 3808篇 |
农业经济 | 1317篇 |
经济概况 | 3516篇 |
信息产业经济 | 1篇 |
邮电经济 | 56篇 |
出版年
2021年 | 139篇 |
2020年 | 259篇 |
2019年 | 429篇 |
2018年 | 517篇 |
2017年 | 532篇 |
2016年 | 535篇 |
2015年 | 309篇 |
2014年 | 566篇 |
2013年 | 2542篇 |
2012年 | 748篇 |
2011年 | 836篇 |
2010年 | 699篇 |
2009年 | 787篇 |
2008年 | 762篇 |
2007年 | 669篇 |
2006年 | 598篇 |
2005年 | 511篇 |
2004年 | 538篇 |
2003年 | 489篇 |
2002年 | 543篇 |
2001年 | 468篇 |
2000年 | 479篇 |
1999年 | 459篇 |
1998年 | 432篇 |
1997年 | 439篇 |
1996年 | 433篇 |
1995年 | 377篇 |
1994年 | 381篇 |
1993年 | 417篇 |
1992年 | 420篇 |
1991年 | 407篇 |
1990年 | 339篇 |
1989年 | 309篇 |
1988年 | 299篇 |
1987年 | 303篇 |
1986年 | 316篇 |
1985年 | 479篇 |
1984年 | 451篇 |
1983年 | 410篇 |
1982年 | 385篇 |
1981年 | 354篇 |
1980年 | 395篇 |
1979年 | 323篇 |
1978年 | 276篇 |
1977年 | 259篇 |
1976年 | 202篇 |
1975年 | 246篇 |
1974年 | 199篇 |
1973年 | 190篇 |
1972年 | 133篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
21.
This study investigates the relative roles of bond ratings and financial information in the setting of bond yields. Structural equation modeling techniques are used to learn whether ratings determine yields or whether both ratings and yields are determined by a concurrent set of economic and financial factors. Tests of alternative structural model configurations provide evidence regarding the associations between bond ratings, financial information, and bond yields. Both ratings and financial information are found to play an important role in determining bond yields. In addition, yields are consistent with the higher rating in cases of split ratings. 相似文献
22.
23.
In this paper we consider the potential gain of a government pursuing a two-part trade policy: an import license for entry, along with a per-unit tariff on imports. The model is a two-stage game of complete but imperfect information. In the first stage, the domestic government sets trade policy, while in the second stage the home and foreign producers behave as Cournot competitors. The paper demonstrates that the optimal trade policy depends upon the number of firms, the degree of heterogeneity in cost functions, and the degree of convexity in cost functions. 相似文献
24.
This paper analyzes the dynamic relationship between primary and secondary mortgage markets and the short-term and long-term market interest rates. Using a series of monthly data on fixed rate mortgage rates and GNMA rates, we explore the dependence and speed of adjustment in these primary and secondary mortgage rates to each other as well as to the long and short-term government rates. The results indicate that residential mortgage rates in general, appear to follow the long-term rate and are not very sensitive to movements in the short-term interest rate. 相似文献
25.
26.
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
27.
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
28.
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
29.
30.