全文获取类型
收费全文 | 574篇 |
免费 | 13篇 |
专业分类
财政金融 | 120篇 |
工业经济 | 30篇 |
计划管理 | 96篇 |
经济学 | 153篇 |
综合类 | 9篇 |
运输经济 | 4篇 |
旅游经济 | 9篇 |
贸易经济 | 122篇 |
农业经济 | 4篇 |
经济概况 | 38篇 |
邮电经济 | 2篇 |
出版年
2022年 | 5篇 |
2020年 | 8篇 |
2019年 | 13篇 |
2018年 | 11篇 |
2017年 | 9篇 |
2016年 | 5篇 |
2015年 | 6篇 |
2014年 | 13篇 |
2013年 | 58篇 |
2012年 | 19篇 |
2011年 | 24篇 |
2010年 | 22篇 |
2009年 | 22篇 |
2008年 | 16篇 |
2007年 | 23篇 |
2006年 | 11篇 |
2005年 | 20篇 |
2004年 | 11篇 |
2003年 | 14篇 |
2002年 | 13篇 |
2001年 | 9篇 |
2000年 | 12篇 |
1999年 | 6篇 |
1998年 | 10篇 |
1997年 | 6篇 |
1996年 | 10篇 |
1995年 | 10篇 |
1994年 | 9篇 |
1993年 | 10篇 |
1992年 | 7篇 |
1991年 | 8篇 |
1990年 | 6篇 |
1989年 | 5篇 |
1988年 | 6篇 |
1987年 | 6篇 |
1986年 | 6篇 |
1985年 | 10篇 |
1984年 | 13篇 |
1983年 | 13篇 |
1982年 | 10篇 |
1981年 | 9篇 |
1980年 | 11篇 |
1979年 | 9篇 |
1978年 | 4篇 |
1976年 | 6篇 |
1975年 | 7篇 |
1974年 | 6篇 |
1973年 | 11篇 |
1972年 | 3篇 |
1971年 | 3篇 |
排序方式: 共有587条查询结果,搜索用时 15 毫秒
101.
This paper estimates how the shape of the implied volatility smile and the size of the variance risk premium relate to parameters of GARCH-type time-series models measuring how conditional volatility responds to return shocks. Markets in which return shocks lead to large increases in conditional volatility tend to have larger variance risk premia than markets in which the impact on conditional volatility is slight. Markets in which negative (positive) return shocks lead to larger increases in future volatility than positive (negative) return shocks tend to have downward (upward) sloping implied volatility smiles. Also, differences in how volatility responds to return shocks as measured by GARCH-type models explain much, but not all, of the variations in excess kurtosis and multi-period skewness across different markets. 相似文献
102.
Louis R. Piccotti 《The Financial Review》2018,53(1):117-152
Exchange traded funds (ETFs) provide a means for investors to access assets indirectly that may be accessible at a high cost otherwise. I show that liquidity segmentation can explain the tendency for ETFs to trade at a premium to net asset value (NAV) as well as the life‐cycle pattern in premiums. ETFs with larger NAV tracking error standard deviations (TESDs) tend to trade at higher premiums and the liquidity benefits offered by foreign ETFs and fixed income ETFs are revealed to be the most valuable to investors. Further tests validate that TESD has the desirable properties of a liquidity segmentation measure. 相似文献
103.
Louis Kaplow 《International Tax and Public Finance》2010,17(1):25-42
The marginal social value of income redistribution is understood to depend on both the concavity of individuals’ utility functions
and the concavity of the social welfare function. In the pertinent literatures, notably on optimal income taxation and on
normative inequality measurement, it seems to be accepted that the role of these two sources of concavity is symmetric with
regard to the social concern about inequality in the distribution of income. Direct examination of the question, however,
reveals that this is not the case. Concavity of utility has a simple, direct effect on the marginal social value of redistribution,
as might be expected, whereas concavity of the social welfare function has a more subtle influence, one that in some cases
may not be very significant. The implications of this difference are examined for some standard forms of utility and welfare
functions, including particular versions that appear in the optimal income taxation literature. 相似文献
104.
This paper explores differences in the impact of equally large positive and negative surprise return shocks in the aggregate U.S. stock market on: (1) the volatility predictions of asymmetric time-series models, (2) implied volatility, and (3) realized volatility. Following large negative surprise return shocks, both asymmetric time-series models (such as the EGARCH and GJR models) and implied volatility predict an increase in volatility and, consistent with this, ex post realized volatility normally rises as predicted. Following large positive return shocks, asymmetric time-series models predict an increase in volatility (albeit a much smaller increase than following a negative shock of the same magnitude), but both implied and realized volatilities generally fall sharply. While asymmetric time-series models predict a decline in volatility following near-zero returns, both implied and realized volatility are normally little changed from levels observed prior to the stable market. The reasons for the differences are explored. 相似文献
105.
Research summary : Research traditionally uses experiential learning arguments to explain the existence of a positive relationship between repetition of an activity and performance. We propose an additional interpretation of this relationship in the context of discrete corporate development activities. We argue that firms choose to repeat successful activities, thereby accumulating high experience with them. Data on 437 aircraft projects introduced through three governance modes show that the positive performance effect of the firm's experience with the focal mode becomes insignificant after accounting for experience endogeneity. We suggest that in a general case, experience with corporate development activities may be tinged with both learning and selection effects. Therefore, omitting to account for experience endogeneity may lead to incorrect conclusions from an “empirically observed” positive experience–performance relationship. Managerial summary : This paper emphasizes that firms generally choose to undertake the corporate development activities (new product introductions, diversification moves, international expansions, alliances, acquisitions, etc.) with which they have been the most successful in the past and that they expect to be the most successful in the future. Hence, if a firm possesses certain capabilities, it will repeatedly engage in certain activities corresponding to those capabilities, thereby simultaneously achieving high levels of activity experience as well as superior activity performance. This view suggests that an “empirically observed” positive experience–performance relationship may not be due solely to learning‐based enhanced capabilities but may also be driven by astute self‐selection. Overall, we provide a new interpretation of the relationship between experience and performance in the context of infrequent, heterogeneous, and causally‐ambiguous corporate development activities. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
106.
Steven Shuye Wang Wei Li Louis T. W. Cheng 《Review of Quantitative Finance and Accounting》2009,32(3):235-267
We conjecture that an introduction of the Hong Kong Hang Seng Chinese Enterprise Stock Index (H-share Index) futures induces
additional speculating activities in the underlying equities, leading to an increase in volatility and volume of the underlying
stocks. Whereas, a subsequent introduction of H-share index options increases the level of informed trading and opens up opportunities
for speculative and arbitrage activities using futures directly against options. These futures and options trading activities
are much cheaper and more efficient than using the underlying stocks, leading to a significant decline in spot market volatility
and volume. Our results are consistent with these arguments. We also find that derivative trading does not change the liquidity
of H-share constituent stocks. Further tests based on the difference-in-difference approach confirm that the above findings
are robust.
相似文献
Louis T. W. Cheng (Corresponding author)Email: |
107.
Lester A. Neidell Louis E. Boone James W. Cagley 《Journal of the Academy of Marketing Science》1984,12(4):161-176
Plain-label generic products consisting of food and household staples and cigarettes have made significant inroads into the
market shares previously held by the national brands of manufacturers and the private brands of wholesalers and retailers.
Although the small number of published research studies analyzing purchasers of generic products have described the user as
a member of an upscale professional, college-educated household, the research reported in this paper analyzed both demographic
and lifestyle characteristics of generic users, non-users, and aware nonusers. Purchase behavior, product evaluation variation,
and purchase probabilities for the three segments are examined. Acceptance of generic products appears to adversely affect
the sales of national brands more than private brands, since most generic product purchasers had previously purchased national
brands. 相似文献
108.
109.
Louis J. Maccini 《Journal of Monetary Economics》1984,13(1):41-65
This paper develops a model of firm behavior in which both price and output decisions and investment decisions are made. The model permits an analysis of the dynamics of inventory and capital accumulation on price and output behavior. There are two main results: (1) Short-run price and output levels will differ from long-run levels as desired stocks of inventory and capital diverge from actual levels. (2) The size of the elasticities of price and output to changes in demand and cost variables depends on the speed with which gaps between desired and actual stocks are closed through investment. 相似文献
110.