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本文研究了“同群公司”的研发支出对公司自身研发行为的影响。研究发现,同群公司研发支出越多,公司自身研发支出也越多。进一步研究发现,在公司与同群公司地理距离较近或同群公司分析师覆盖程度较高情况下,同群公司研发支出与公司自身研发支出的正相关关系更强。此外,同群公司研发支出会提高公司自身研发支出与未来业绩的正相关程度。研究表明,公司会学习同群公司的研发决策,进而改变其自身研发决策,呈现显著的研发支出同群效应;且公司信息解读成本较低时,研发支出同群效应更为显著。本文不仅丰富了关于研发支出影响因素的研究,还拓展了对研发溢出效应的研究。本文的研究结论对公司制定研发决策具有重要指导意义。  相似文献   
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The JOBS Act allows certain analysts to be more involved in the IPO process, but does not relax restrictions on analyst compensation structure. We find that these analysts initiate coverage that is more optimistically biased, less accurate, and generates smaller stock market reactions. Investors purchasing shares following these initiations lose over 3% of their investment by the firm's subsequent earnings release. By contrast, issuers, analysts, and investment banks appear to benefit from this increased bias, as optimism is more positively associated with proxies for firm visibility and investment banking revenues when analysts are involved in the IPO process.  相似文献   
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We investigate several previously under-documented conflicts of interest that may result in analyst optimism by utilizing two unique features of brokerage firms in China, namely, the dominant ownership of large shareholders within the brokerage firms and the mandatory disclosure of brokerage firms’ commission income derived from each mutual fund client. We show that controlling shareholders of an analyst’s brokerage-firm put pressure on the analyst to report more optimistically biased earnings forecasts and recommendations to the stocks they hold larger positions in. We also find that the magnitude of analyst optimism increases with the shareholdings of the mutual funds that contribute commission fees to the analyst’s brokerage firm. These findings remain robust after incorporating a regulation change that reduces conflicts of interest in the brokerage industry and higher dimensional fixed effects, and thus are unlikely to be driven by reverse causality or omitted variable bias.  相似文献   
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This study examines the time‐varying performance of investment strategies following analyst recommendation revisions in the UK stock market, with specific emphasis on the impact of changing market conditions. We find a negative relationship between the recommendation performance and market conditions as measured in terms of past market return and market volatility. In particular, the upgrade (downgrade) portfolio generates significantly positive (negative) net abnormal returns in bad market conditions (e.g., the dot‐com bubble burst in 2000 and the credit crisis in 2007), but not in other periods of time. Moreover, our non‐temporal threshold regression analysis shows that the reported negative relationship disappears when market conditions become better, i.e., when the past market return (market volatility) is higher (lower) than a certain level, indicating the importance of taking non‐linearity into account in the long sample period as examined in this study. Our time‐series bootstrap simulations further confirm that the superior recommendation performance in bad market conditions is not due to random chance; analysts have certain skills in making valuable up/downward revisions in bad markets.  相似文献   
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This study examines financial analyst coverage for U.S. firms following an increase in foreign product market competition. To capture exogenous shocks to domestic firms' competitive environments, we exploit a quasi‐natural experiment from large import tariff reductions over the 1984 to 2005 period in the manufacturing sector. Using data for the years before and after large tariff reductions, our difference‐in‐differences analysis shows evidence of a significant decrease in analyst coverage for incumbent U.S. firms when they face greater entry threat from foreign competitors. We also find that analysts with less firm‐specific experience and less accurate prior‐period forecasts are more likely to stop following the domestic firm when foreign competition intensifies. Overall, the findings suggest that foreign product market competition from global trade liberalization is an important determinant of financial analysts' coverage decisions.  相似文献   
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The financial press suggests that information is commonly leaked prior to analyst recommendations. We examine the impact that three regulatory actions (Regulation Fair Disclosure, Global Analysts Research Settlement, and the legal case against Galleon Group) have on information leakage prior to analyst recommendations. We find that all three regulatory actions have significantly reduced the leakage of information prior to analyst recommendations, even after controlling for several characteristics that explain the variation in information leakage. Our results are robust when applying an alternative method of measuring information leakage, and when forming various samples of analyst recommendations based on different criteria.  相似文献   
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In this study, we address the ongoing debate as to whether the competition among the world's major exchanges through simplified disclosure requirements is justified. Companies from across the globe have a choice of cross-listing shares as either American or Global Depositary Receipts (ADRs and GDRs, respectively). The former are primarily listed on the US exchanges – NYSE, NASDAQ and AMEX – whereas the latter are issued into non-US markets such as the London Stock Exchange (LSE). The GDRs listed on the LSE are subject to simplified disclosure requirements compared to their exchange-listed ADR peers that have to meet more stringent compliance standards. Proponents of the ‘light touch’ approach argue that firms cross-listing as GDRs are not subject to the higher reporting costs faced by ADRs yet still face similar valuation benefits. Those who challenge this approach argue that simplified disclosure requirements set by the LSE will ultimately be recognised by the market as ineffective, diverting traders from investing in GDRs. This study provides evidence that supports the LSE's ‘light touch’ approach and shows that the benefits of information risk reduction for ADRs and GDRs are comparable. The explanation for this finding is that the two avenues through which information asymmetry is expected to be resolved after cross-listing – disclosure and analysts – are substitutive and make equally important contribution to information risk reduction, eventually leading to similar cost of capital decline for ADRs and GDRs.  相似文献   
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