全文获取类型
收费全文 | 667篇 |
免费 | 38篇 |
专业分类
财政金融 | 133篇 |
工业经济 | 65篇 |
计划管理 | 105篇 |
经济学 | 126篇 |
综合类 | 9篇 |
运输经济 | 17篇 |
旅游经济 | 59篇 |
贸易经济 | 107篇 |
农业经济 | 36篇 |
经济概况 | 48篇 |
出版年
2023年 | 5篇 |
2022年 | 5篇 |
2021年 | 10篇 |
2020年 | 22篇 |
2019年 | 34篇 |
2018年 | 30篇 |
2017年 | 34篇 |
2016年 | 35篇 |
2015年 | 23篇 |
2014年 | 29篇 |
2013年 | 108篇 |
2012年 | 34篇 |
2011年 | 32篇 |
2010年 | 28篇 |
2009年 | 28篇 |
2008年 | 21篇 |
2007年 | 28篇 |
2006年 | 16篇 |
2005年 | 14篇 |
2004年 | 8篇 |
2003年 | 13篇 |
2002年 | 18篇 |
2001年 | 3篇 |
2000年 | 13篇 |
1999年 | 8篇 |
1998年 | 6篇 |
1997年 | 7篇 |
1996年 | 9篇 |
1995年 | 3篇 |
1994年 | 3篇 |
1992年 | 3篇 |
1991年 | 5篇 |
1990年 | 3篇 |
1988年 | 2篇 |
1987年 | 2篇 |
1986年 | 2篇 |
1985年 | 3篇 |
1984年 | 5篇 |
1983年 | 4篇 |
1982年 | 3篇 |
1981年 | 7篇 |
1980年 | 6篇 |
1979年 | 2篇 |
1978年 | 2篇 |
1977年 | 4篇 |
1976年 | 5篇 |
1975年 | 3篇 |
1974年 | 4篇 |
1973年 | 2篇 |
1972年 | 3篇 |
排序方式: 共有705条查询结果,搜索用时 31 毫秒
91.
92.
93.
Two methods of evaluating (the net social benefits of the dairy herd-improvement scheme operated by the New South Wales Department of Agriculture are described. The first involves derivation of 'an input demand' function for the herd-recording aspect of the scheme and use of this function to estimate the economic surplus (net of both private and public costs) provided by the service. The second approach involves deriving a production function for milk from which it is possible to estimate the contribution herd-recording and artificial breeding have made to increasing milk yields per cow. Social benefits are shown to have been less than social costs for herd-recording, however dairy farmers have made net private gains. The herd-recording scheme has contained a regressive subsidy element. The production function approach show that artificial breeding and herd-recording were profitable complements in production. 相似文献
94.
95.
Performance feedback has significant potential to benefit employees in terms of individual and team performance. Moreover, effective performance feedback has the potential to enhance employee engagement, motivation, and job satisfaction. However, managers often are not comfortable giving performance feedback and such feedback, if improperly relayed, causes more harm than good. In this installment of HUMAN PERFORMANCE, we describe a shift from traditional weaknesses-based feedback (which relies on negative commentary focused on employees’ shortcomings) to the more constructive approach of strengths-based feedback (which relies on employee affirmation and encouragement). We explain why a strengths-based approach to performance feedback is superior to the weaknesses-centered approach, and offer nine research-based recommendations on how to deliver effective performance feedback employing a strengths-based method. 相似文献
96.
The use of private schools in Australia has increased greatly since the 1970s. This article shows that most of the growth has been concentrated in attendance at low-fee schools, while the growth in using high-fee schools has been modest. Furthermore, the increase has occurred for households at all income levels, for both single-parent and two-parent households, for households of all sizes, and irrespective of whether the household reference person is born in Australia or elsewhere. However, increasing income and changes in household composition can account only for a small part of the trend. 相似文献
97.
We examine factors that influence decisions by U.S. equity traders to execute a string of orders, in the same stock, in the same direction, around the same time. Order splitting is more likely to occur when traders submit larger‐size orders and when market depth and trading activity are lower. Order splitters demand liquidity more and pay higher trading costs, but their overall performance is better. When controlling for execution time, split orders are more informative than single orders. Our results suggest that order splitting arises from a variety of factors, including informational differences, order and trader characteristics, and market conditions. 相似文献
98.
M. Ryan Haley 《Annals of Finance》2017,13(3):341-353
Recent research reports that optimal portfolio selection models often perform worse than equal-weight naive diversification in out-of-sample testing. This paper extends this line of inquiry by comparing the out-of-sample performance of the equal-weight naive strategy to the out-of-sample performance of five alternative naive strategies, each of which derives from a simple heuristic that does not require any optimization. Out-of-sample portfolio performance is assessed by mean, standard deviation, skewness, and Sharpe ratio; k-fold cross validation is used as the out-of-sample testing mechanism. The results indicate that the proposed naive heuristic rules exhibit strong out-of-sample performance, in most cases superior to the equal-weight naive strategy. These findings are consequential for at least two reasons: first, if these simple heuristic-based rules outperform the equal-weight naive strategy, then by transitivity they can outperform the mean–variance- and shortfall-optimal portfolio rules that have been shown in the literature to be inferior to the equal-weight naive rule, which further emphasizes the out-of-sample fragility of “optimal” methods; and second, among naive diversification strategies, some appear more robust in out-of-sample testing than others, hence the proposed methods may be useful when forming mixed portfolio selection models wherein a naive strategy is combined with an optimal strategy to improve performance. 相似文献
99.
This paper examines competition between exchange traded funds (ETFs) that hold nearly identical portfolios of securities. We provide evidence that incumbent‐fund liquidity is negatively affected when a new ETF is added to an asset class. The degradation in liquidity is even more severe whenever both funds follow the same benchmark. We also document a decline in primary‐market activity for the incumbent ETFs after the arrival of new competitors. Furthermore, increasing the number of funds in an asset class does not put downward pressure on fund management fees. Thus, the deterioration in market quality may not be offset by decreasing costs of fund ownership. 相似文献
100.
Daniel J. Ryan 《International Advances in Economic Research》1998,4(4):305-317
A real open-economy model is constructed in which the government's commitment to a future fiscal expansion is not credible.
Government credibility (measured by the growth rate of the probability that the expansion will occur) becomes a parameter
of the system and appears directly in the eigenvalues. Simulations are performed demonstrating the effect of credibility on
GNP, the exchange rate, and other variables. Lastly, the optimum credibility is determined which minimizes a loss function
associated with deviations from full employment. 相似文献