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1.
There has been large-scale growth in Islamic finance and banking in Muslim countries and around the world during the last twenty years. This growth is influenced by factors including the introduction of broad macroeconomic and structural reforms in financial systems, the liberalization of capital movements, privatization, the global integration of financial markets, and the introduction of innovative and new Islamic products. Islamic finance is now reaching new levels of sophistication. However, a complete Islamic financial system with its identifiable instruments and markets is still very much at an early stage of evolution. Many problems and challenges relating to Islamic instruments, financial markets, and regulations must be addressed and resolved. In this paper, we provide a comprehensive comparative review of the literature on the Islamic financial system. Specifically, we discuss the basic features of the Islamic finance and banking. We also introduce Islamic financial instruments in order to compare them to existing Western financial instruments and discuss the legal problems that investors in these instruments may encounter. The paper also gives a preliminary empirical assessment of the performance of Islamic banking and finance, and highlights the regulations, challenges and problems in the Islamic banking market.  相似文献   
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Using essentially all declared extraordinary and special cash dividends between 1926 and 2001 which are not preceded or followed by the same for a period of three years, we find no robust post-declaration long-term abnormal stock returns, even in sub-samples defined by the special dividend yield, the bang-for-the-buck, the declaration-period abnormal return, the sub-sampling period or the stock market condition at declaration. Only event firms in the smallest CRSP market capitalization quintile display significant positive abnormal returns during the first-year following the declaration. However, these latter are not robust across sub-sampling periods. Overall, there is no compelling evidence that investors under- or over-react to extraordinary or special cash dividends.  相似文献   
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A bstract .   Cooperative R&D and production joint ventures may enable firms to achieve significant cost efficiencies. However, they can also be a means of controlling industry output and raising product prices. A review of the literature on the welfare implications of allowing rival firms to cooperate in the R&D and production stages indicates that the issue is controversial from a theoretical perspective. There is need to examine the motivations of R&D and production joint ventures in order to assess the welfare implications of the National Cooperative Research Act (NCRA) of 1984 and National Cooperative Production Amendments (NCPA) of 1993, which relaxed the antitrust treatment of R&D and production joint ventures. Using samples of 127 cooperative R&D joint ventures and 342 cooperative production joint ventures announced by U.S. domestic firms during 1979–1999, this article finds that these endeavors do not meet the criteria for collusive behavior specified by the market power doctrine. We interpret these findings as suggesting that cooperative R&D and production joint ventures are motivated by cost efficiencies and are, therefore, welfare enhancing. Our results pose some challenges to the doctrine that antitrust actions by regulatory authorities are always welfare improving.  相似文献   
5.
We examine the relation among average returns, market beta, firm size, and book-to-market value for Canadian stocks during 1975–92. We document a negative relation between average return and the market capitalization of firms, but find no relation between average return and market beta. While the small firm effect is significant during a period of reduced capital gains tax, it is noticeably lower than during the period leading up to the change. We find that average returns are positively related to book-to-market value especially during the period of lower capital gains tax.  相似文献   
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We extend the evidence on whether investors impound efficiently into stock prices new disclosures about corporate R&D programs. We find that firms that disclose the discontinuation of some of their R&D programs experience a significant negative announcement-period stock price response which is worse for growth stocks, for small-size firms, and for firms with low operating cash flow. We find no evidence that R&D discontinuing firms experience an event-induced change in their systematic risk. We find evidence of a one-year-long price reversal; however, it is not robust to controlling for possible risk dimensions for firms with R&D capital that the three-factor model does not capture. Evidently, investors' initial response at disclosures of discontinuation of corporate R&D programs is efficient.  相似文献   
7.
We examine the short term stock price performance of firms that acquire or sell technology rights. We find significant positive announcement-period abnormal returns to the acquirers and sellers. However, the price increases reverse during the subsequent twenty trading days. These quick fortune reversals cannot be attributed to methodology; they prevail in the late 1970s through the 2000s, in bear and bull stock markets, and in both high and low technology industries. Upon splitting the sample into two subsamples comprised each of stocks with either pre-announcement price run-up or decline; we find that the abnormal return reversal is confined to the latter subsample. Stocks that witness price run-up prior to the announcement do not reverse to original prices but lose the momentum right after the announcement-period. We believe this is caused by the combination effect of the momentum prior to-and the impact of the announcement.  相似文献   
8.
Large-size firms which significantly increase their R&D expenditures experience subsequently three-year-long negative abnormal stock returns on the magnitude of 56 basis-points per month. We find no robust evidence of significant event-induced abnormal returns for small-size sample firms or any systematic risk changes for the small- and large- size firms. We also find that the large-size sample firms generate relatively much larger cash flows (i.e., have significantly greater over-investment discretion) and have significantly larger (over-) valuation multiples than the small-size firms. Moreover, some of their operating performance measures show signs of deterioration instead of improvement following these R&D programs. These findings are consistent with the view that investors initially underestimate the over-investment in R&D by some large-size firms that appear to be overvalued and have high cash flows at the time of the investment, only to be disappointed later.  相似文献   
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This study investigates a contemporaneous relationship between realized market risk premia, and conditional variance and covariance in nine Asian markets and the US. The time period for this study is before, during, and after the Asian financial crisis. A contemporaneous state-dependent capital asset pricing model (CAPM) that allows for negative and positive market prices of variance and covariance risk is investigated. In the light of significant upstate and downstate reward to local and world variance risk for all markets and all periods, we conclude that a market return-generating process is a piecewise function of local and world variance over time. Furthermore, a cross-sectional analysis of upstate and downstate market prices of variance and covariance risk indicates that reward to risk is a mix of reward to local and world variance, depending on the ever-changing correlation with the world market. Our findings are consistent with the one-factor conditional international CAPM.  相似文献   
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The corporate restructuring activity of the 1980s, sparked by potential external capital market intervention, is believed to have been primarily directed at correcting the diversification mistakes of the 1960s and 1970s, which had led to poor corporate performance. Assuming that investor gains from corporate restructurings are unbiased expectations regarding future efficiency gains, many researchers concluded that the market for corporate control is an efficient external control mechanism and that the restructuring programs of the 1980s will, on average, be followed by substantial improvements in corporate performance. To examine whether those improvements were achieved, this paper analyzes the long-term operating and financial performance of the 50 most aggressive US participants in the takeovers and corporate restructuring activity during the 1980s. The results support the hypothesis that the market for corporate control is an efficient external corporate control mechanism of last resort.  相似文献   
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