全文获取类型
收费全文 | 13300篇 |
免费 | 326篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 2587篇 |
工业经济 | 1093篇 |
计划管理 | 2310篇 |
经济学 | 2965篇 |
综合类 | 252篇 |
运输经济 | 78篇 |
旅游经济 | 205篇 |
贸易经济 | 2181篇 |
农业经济 | 500篇 |
经济概况 | 1417篇 |
信息产业经济 | 1篇 |
邮电经济 | 38篇 |
出版年
2023年 | 70篇 |
2021年 | 81篇 |
2020年 | 174篇 |
2019年 | 247篇 |
2018年 | 285篇 |
2017年 | 327篇 |
2016年 | 310篇 |
2015年 | 210篇 |
2014年 | 296篇 |
2013年 | 1393篇 |
2012年 | 416篇 |
2011年 | 451篇 |
2010年 | 382篇 |
2009年 | 462篇 |
2008年 | 398篇 |
2007年 | 380篇 |
2006年 | 315篇 |
2005年 | 280篇 |
2004年 | 306篇 |
2003年 | 315篇 |
2002年 | 276篇 |
2001年 | 302篇 |
2000年 | 310篇 |
1999年 | 259篇 |
1998年 | 261篇 |
1997年 | 272篇 |
1996年 | 231篇 |
1995年 | 232篇 |
1994年 | 207篇 |
1993年 | 212篇 |
1992年 | 233篇 |
1991年 | 220篇 |
1990年 | 178篇 |
1989年 | 179篇 |
1988年 | 137篇 |
1987年 | 140篇 |
1986年 | 145篇 |
1985年 | 223篇 |
1984年 | 194篇 |
1983年 | 195篇 |
1982年 | 164篇 |
1981年 | 186篇 |
1980年 | 151篇 |
1979年 | 180篇 |
1978年 | 146篇 |
1977年 | 130篇 |
1976年 | 133篇 |
1975年 | 107篇 |
1974年 | 105篇 |
1973年 | 87篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
The price movements of certain assets can be modeled by stochastic processes that combine continuous diffusion with discrete jumps. This paper compares values of options on assets with no jumps, jumps of fixed size, and jumps drawn from a lognormal distribution. It is shown that not only the magnitude but also the direction of the mispricing of the Black-Scholes model relative to jump models can vary with the distribution family of the jump component. This paper also discusses a methodology for the numerical valuation, via a backward induction algorithm, of American options on a jump-diffusion asset whose early exercise may be profitable. These cannot, in general, be accurately priced using analytic models. The procedure has the further advantage of being easily adaptable to nonanalytic, empirical distributions of period returns and to nonstationarity in the underlying diffusion process. 相似文献
12.
13.
14.
Recent research in finance has indicated that the institutional structure in which financial asset prices are determined can have a nontrivial impact on pricing. This report examines transaction level data for Treasury Note futures contracts traded at the Chicago Board of Trade (CBOT) to identify institutional, or market microstructure, impacts on the pricing of these contracts. Relatively few articles have conducted empirical research on the microstructure of U.S. futures trading due to the limited availability of comprehensive transaction level data from the futures exchanges. This report uses the CBOT's Computerized Trade Reconstruction database, a comprehensive transaction level dataset, to identify the price impact of the time duration between trades in a manner analogous to that of A. Dufour and R. F. Engle (2000). Unique differences from prior research include the application to futures contracts with their relative higher frequency of trading, as well as the investigation of the price impact of the number of active traders present on the trading floor and the trading volume. Subsequent price and sign of trade significantly relate to the time duration between trades, the number of floor brokers, and the trading volume. © 2004 Wiley Periodicals, Inc. Jrl. Fut Mark 24:965–980, 2004 相似文献
15.
We apply a discrete choice approach to model the empirical behaviour of the Federal Reserve in changing the federal funds target rate, the benchmark of short‐term market interest rates in the US. Our methods allow the explanatory variables to be nonstationary as well as stationary. This feature is particularly useful in the present application as many economic fundamentals that are monitored by the Fed and are believed to affect decisions to adjust interest rate targets display some nonstationarity over time. The chosen model successfully predicts the majority of the target rate changes during the time period considered (1994–2001) and helps to explain strings of similar intervention decisions by the Fed. Based on the model‐implied optimal interest rate, our findings suggest that there is a lag in the Fed's reaction to economic shocks during this period. Copyright © 2004 John Wiley & Sons, Ltd. 相似文献
16.
The idea of judo economics, building on analogies with the sport of judo, has been around for at least 20 years. But taking these ideas further to judo strategy means that a framework of strategic principles can be developed to help companies put stronger opponents on the mat. 相似文献
17.
18.
19.
This paper examines the comments submitted by UK companies on 20 proposed accounting standards to test the hypotheses that executives favor standards that increase, or dampen the variance of, accounting profit numbers on which their incentive remuneration is based. Test results were generally as hypothesised but only the profit variance outcomes were statistically significant. Allowing for political environment changes affected only the profit variance results. There was no evidence that the relative monetary size of bonus payments was a significant lobbying factor. No significant differences were found between the lobbying preferences of companies with or without executive incentive schemes. 相似文献
20.