全文获取类型
收费全文 | 3985篇 |
免费 | 159篇 |
国内免费 | 2篇 |
专业分类
财政金融 | 603篇 |
工业经济 | 147篇 |
计划管理 | 876篇 |
经济学 | 768篇 |
综合类 | 20篇 |
运输经济 | 20篇 |
旅游经济 | 34篇 |
贸易经济 | 1187篇 |
农业经济 | 59篇 |
经济概况 | 272篇 |
邮电经济 | 160篇 |
出版年
2023年 | 34篇 |
2022年 | 33篇 |
2021年 | 47篇 |
2020年 | 62篇 |
2019年 | 82篇 |
2018年 | 194篇 |
2017年 | 205篇 |
2016年 | 208篇 |
2015年 | 140篇 |
2014年 | 185篇 |
2013年 | 426篇 |
2012年 | 253篇 |
2011年 | 182篇 |
2010年 | 198篇 |
2009年 | 151篇 |
2008年 | 166篇 |
2007年 | 113篇 |
2006年 | 126篇 |
2005年 | 143篇 |
2004年 | 75篇 |
2003年 | 78篇 |
2002年 | 86篇 |
2001年 | 82篇 |
2000年 | 56篇 |
1999年 | 41篇 |
1998年 | 36篇 |
1997年 | 29篇 |
1996年 | 35篇 |
1995年 | 30篇 |
1993年 | 36篇 |
1992年 | 22篇 |
1990年 | 26篇 |
1989年 | 20篇 |
1988年 | 18篇 |
1987年 | 23篇 |
1986年 | 20篇 |
1985年 | 34篇 |
1984年 | 32篇 |
1983年 | 22篇 |
1982年 | 25篇 |
1981年 | 22篇 |
1978年 | 18篇 |
1977年 | 20篇 |
1976年 | 27篇 |
1975年 | 23篇 |
1974年 | 18篇 |
1973年 | 20篇 |
1972年 | 18篇 |
1971年 | 26篇 |
1970年 | 21篇 |
排序方式: 共有4146条查询结果,搜索用时 15 毫秒
151.
This article describes the results of a scientific discourse which aimed at exploring the reasons for differences in expert health risk assessment of radio frequency electromagnetic fields of mobile telephony. It starts with describing the structure of the discourse. Then, the reasons for the conflicting risk assessments are discussed. Differences are due to the selection and evaluation of relevant scientific studies by applying different scientific quality standards, to the methods used for generating a research synthesis and an overall risk evaluation. Consensus could be achieved regarding the selection of and the quality requirements for the scientific studies used for risk assessment as well as their significance for risk evaluation. However, dissent remained about the synthesis of scientific evidence into an overall risk evaluation and about the relevance of the precautionary principle for risk evaluation and its implications for the risk assessment framework. Based on the analysis of these problems, a transparent, consistent and rational procedure for risk assessment is suggested to facilitate a risk characterization which better meets the demands of policy making and the public for an appropriate risk evaluation. 相似文献
152.
Are hedging transactions that diversify a manager’s compensation risk detrimental to incentives, or can they improve contracting efficiency? If hedging provides efficiency benefits, should the manager or the firm undertake it? In our model, both the firm and the manager can trade financial portfolios to diversify the manager’s compensation risk. Prior to the portfolio selection, the parties need to acquire information on how different financial portfolios fit their diversification purposes. We illustrate that financial portfolios correlated with firm‐specific risk improve contracting efficiency. For equal information costs, it is optimal for the firm to undertake the hedging on the manager’s behalf. 相似文献
153.
154.
155.
156.
The purpose of this study is to analyze the persistent, typically negative, mispricing in the new stock index futures market in Turkey, which has amounted to 5–8%, several multiples of transaction costs. The observations suggest that it is the outcome of a combination of practical difficulties of shorting in the spot stock market, behavioral effects, and insufficient arbitrage. The magnitude of the mispricing and the absence of arbitrage make behavioral effects more visible and provide a unique opportunity to examine extant behavioral hypotheses. Results confirm effects such as disposition and/or conservatism with the mispricing negatively related to past returns, but unrelated to future returns. Finally, an orderly weakening of the negative relation to past returns and behavioral effects is observed, suggesting that such effects will diminish as the market matures. © 2009 Wiley Periodicals, Inc. Jrl Fut Mark 29:218–243, 2009 相似文献
157.
158.
Günther Lang 《International Advances in Economic Research》2001,7(2):213-230
This paper analyzes a two-stage model of bilateral bargaining where one of the agents has the option to delegate. A first
approach is to assume that the contract between the agent and his representative is perfectly observable and can be renegotiated.
Commitment effects arise although renegotiation is possible. Then, perfect observability of the contract is weakened to observe
it with certain probability. Commitment effects as pure-strategy equilibria exist if this probability is sufficiently close
to 1, in contrast to Bagwell's [1995] findings that imperfect observability undermines commitment. Considering the realistic
case of the actual agreement between two parties being private information, the commitment value as equilibrium outcome disappears
since having closed a renegotiation-proof contract offers costless self-insurance against strategic misunderstandings.
The author is grateful for helpful comments from Vasco Santos, participants at the International Atlantic Economic Conference,
October 7–10, 1999, Montreal, Canada, an anonymous referee, and David M. Aadland. 相似文献
159.
Platforms for SaaS-based enterprise applications are prospering and the number of on-demand ERP vendors is increasing. We
combine both phenomena for the first time and illustrate how the integration of a sustainability benchmarking service into
an on-demand ERP platform provides added value beyond pure cost savings. By applying a qualitative system dynamics approach
we identify self-reinforcing mechanisms which allow a faster and more comprehensive market penetration compared to providing
these services separately. 相似文献
160.
We study the equilibrium accounting and transfer pricing policies in a multinational duopoly with price competition in the final product market. We find that the firms in a duopoly can benefit from strategically using the same transfer price for tax and managerial purposes instead of using separate transfer prices for both objectives. According to our results, the practice of one set of books should be the prevalent accounting method in markets with a small number of competitors and similar products. 相似文献