排序方式: 共有19条查询结果,搜索用时 175 毫秒
1.
Absent much theory, empirical works often rely on the following informal reasoning when looking for evidence of a mutual fund tournament: If there is a tournament, interim winners have incentives to decrease their portfolio volatility as they attempt to protect their lead, while interim losers are expected to increase their volatility so as to catch up with winners. We consider a rational model of a mutual fund tournament in the presence of short-sale constraints and find the opposite: Interim winners choose more volatile portfolios in equilibrium than interim losers. Several empirical works present evidence consistent with our model. However, based on the above informal argument, they appear to conclude against the tournament behavior. We argue that this conclusion is unwarranted. We also demonstrate that tournament incentives lead to differences in interim performance for otherwise identical managers and that mid-year trading volume is inversely related to mid-year stock return. 相似文献
2.
本文从投资者意见分歧角度出发,研究盈余发布前后一段时间内中国股票价格行为特征,并在此基础上首次考虑公告所引发的二次意见分歧对市场反应产生的影响。研究结果表明意见分歧越高的公司,股价在公告前高估情况越严重、在公告时的下降幅度越大,二次意见分歧高的股票其超额收益较大。此外,本文还发现中国股市普遍存在盈余公告提前泄露,股价的收益特征较国外有所前移,通过进一步分析发现市场知道坏消息的时间要早于好消息。 相似文献
3.
本文定义月度异常交易量为本月与上个月交易金额的比值,发现中国市场月度收益率与滞后一个月的异常交易量显著负相关。在控制了公司规模、账面市值比、流动性以及动量效应等指标后仍然具有显著的解释作用。进一步研究表明,在出现高异常交易量后的12个月内,换手率和特质性波动率都有大幅上升。本文认为,交易量上升代表着市场分歧程度和受关注程度的增加,在卖空约束下会使得股票价值高估,从而造成未来收益率下降。 相似文献
4.
Gang Hu J. Ginger Meng Mark E. Potter 《Journal of Business Finance & Accounting》2008,35(5-6):679-703
Abstract: We find that opinion divergence among professional investment managers is commonplace, using a large sample of transaction-level institutional trading data. When managers trade together, future returns are similar regardless if they are all buying or selling, inconsistent with the notion that professional investment managers possess stock picking ability or private information that is of investment value. However, when managers trade against each other, subsequent returns are low, especially for stocks that are difficult to short. This U-shaped disagreement-return relationship is consistent with Miller's (1977) hypothesis that, in the presence of short-sale constraints, opinion divergence can cause an upward bias in prices. 相似文献
5.
Eduardo L. Giménez 《Annals of Finance》2007,3(4):455-469
This paper is concerned with the pricing of money in a framework with restrictions on trading, under an extension of the standard-asset
pricing theory that recognizes both tangible and intangible returns. It is argued that the underlying motivations for demanding
money give content to its fundamental value and the bubble component. This approach is illustrated by analyzing the case where
no short-sales are allowed, as two examples from the literature are made used to assert that money is a pure pricing bubble.
Owing to this setup exhibits technically incomplete financial markets, the fundamental value of money is not uniquely defined
over the set of generalized state-price processes. Then, these examples are shown to comprise an extreme case, as money is
a pure store of value for the state-prices chosen (i.e., it is a pricing bubble). Instead, the fundamental value of money
can be positive for other state-prices, representing the role of money in the trading process. Therefore, money should not
be considered the equivalent of a pure pricing bubble.
相似文献
6.
Louis Gagnon 《The Financial Review》2018,53(1):5-50
This paper exploits the unique experimental setting created by nearly 1,300 new single stock futures listings on the OneChicago exchange between 2003 and 2009. I investigate the impact of derivatives introductions on the tightness of short sale constraints facing their underlying assets. After controlling explicitly for supply and demand conditions in the stock lending market, this experiment reveals a precipitous decline in active utilization rates and loan fees in the lending market, after the futures introductions. The paper provides strong evidence that supports the view that derivatives represent a viable alternate synthetic short selling venue relaxing short sale constraints facing their underlying assets. 相似文献
7.
It is well argued that short sellers are informed traders, and short interests predict future stock returns significantly. However, most researches neglect margin buyers, as twin sisters of short sellers, and keep silent about their impact on stock returns. In this article, we demonstrate that margin buyers significantly impact predictive power of conventional short measures. We document that conventional short measures neglecting margin‐buying activities, short interest ratio (SIR) and days to cover (DTC) fail to predict stock return unless our analysis is confined to lightly margin bought stocks. We also show that short‐margin trading ratio (SMTR), revised short measure with consideration of margin buying, predict stock return more sharply. What is more, we can form profitable portfolios by the new short measure. 相似文献
8.
9.
Studying a large sample of publicly available data on failures to deliver, we find that stocks reaching threshold levels of failures become significantly overvalued. Where short sale constraints are especially binding, we report extreme overpricing and subsequent reversals. These findings support the overvaluation hypothesis, although the mispricing is likely to be difficult to arbitrage because of extreme shorting costs. In addition, threshold stocks with low short interest become more overvalued than threshold stocks with high short interest. This suggests that the level of short interest reflects supply‐side effects when the examination conditions on the difficulty of borrowing shares. 相似文献
10.
Sami Keskek Lynn Rees Wayne B. Thomas 《Journal of Business Finance & Accounting》2013,40(7-8):769-795
Berkman, Dimitrov, Jain, Koch, and Tice (2009) document a negative relationship between differences of opinion and earnings announcement returns, and this relationship is more pronounced when short‐sale constraints are likely to be high. These findings are interpreted as support for the theory in Miller (1977) that binding short sale constraints cause pessimists to be underrepresented in price formation. We conjecture that accounting information (i.e., earnings news) is likely to play a role in this returns pattern. After controlling for the level of earnings news, we find that the relationship between differences of opinion and stock returns is either eliminated or opposite from what is predicted by Miller's theory. Further, we present evidence that suggests the confounding effect of earnings news can be explained by (pessimistic) management earnings guidance. Our findings offer an alternative explanation for why low differences of opinion stocks earn greater abnormal returns around earnings announcements. 相似文献