全文获取类型
收费全文 | 7689篇 |
免费 | 1336篇 |
专业分类
财政金融 | 1603篇 |
工业经济 | 659篇 |
计划管理 | 1536篇 |
经济学 | 1657篇 |
综合类 | 27篇 |
运输经济 | 176篇 |
旅游经济 | 339篇 |
贸易经济 | 1953篇 |
农业经济 | 344篇 |
经济概况 | 724篇 |
邮电经济 | 7篇 |
出版年
2023年 | 41篇 |
2022年 | 26篇 |
2021年 | 114篇 |
2020年 | 253篇 |
2019年 | 612篇 |
2018年 | 406篇 |
2017年 | 532篇 |
2016年 | 502篇 |
2015年 | 467篇 |
2014年 | 520篇 |
2013年 | 1181篇 |
2012年 | 545篇 |
2011年 | 518篇 |
2010年 | 471篇 |
2009年 | 366篇 |
2008年 | 343篇 |
2007年 | 267篇 |
2006年 | 212篇 |
2005年 | 200篇 |
2004年 | 184篇 |
2003年 | 184篇 |
2002年 | 191篇 |
2001年 | 136篇 |
2000年 | 92篇 |
1999年 | 61篇 |
1998年 | 48篇 |
1997年 | 34篇 |
1996年 | 40篇 |
1995年 | 44篇 |
1994年 | 33篇 |
1993年 | 36篇 |
1992年 | 30篇 |
1991年 | 40篇 |
1990年 | 16篇 |
1989年 | 19篇 |
1988年 | 20篇 |
1987年 | 22篇 |
1986年 | 24篇 |
1985年 | 19篇 |
1984年 | 14篇 |
1983年 | 24篇 |
1982年 | 20篇 |
1981年 | 16篇 |
1980年 | 15篇 |
1979年 | 16篇 |
1978年 | 9篇 |
1977年 | 14篇 |
1976年 | 5篇 |
1973年 | 10篇 |
1971年 | 5篇 |
排序方式: 共有9025条查询结果,搜索用时 187 毫秒
901.
We examine the relation between Chief Executive Officer (CEO) overconfidence and significant increases in research and development (R&D) expenditures. Although prior studies reveal a significantly positive market reaction to increases in R&D expenditures in both the long and short run, we find that long‐run stock performance is positive only for firms whose CEOs are not overconfident. Our findings, which may be attributable to overinvestment and the overestimation of future cash flows, imply that R&D resulting from overconfident behavior does not provide any value to firms. 相似文献
902.
Stocks with large increases in call (put) implied volatilities over the previous month tend to have high (low) future returns. Sorting stocks ranked into decile portfolios by past call implied volatilities produces spreads in average returns of approximately 1% per month, and the return differences persist up to six months. The cross section of stock returns also predicts option implied volatilities, with stocks with high past returns tending to have call and put option contracts that exhibit increases in implied volatility over the next month, but with decreasing realized volatility. These predictability patterns are consistent with rational models of informed trading. 相似文献
903.
Serafeim Tsoukas Marina‐Eliza Spaliara 《Journal of Business Finance & Accounting》2014,41(1-2):242-269
Financing constraints have been found to play an important role in several aspects of firm behavior, but no attention has been given to their effects on credit ratings. In this paper we analyze a unique and comprehensive data set for US firms rated by Fitch over the period 2001–07. We employ Fitch's market implied ratings derived from bond and equity prices. The analysis finds evidence that financial variables are more important in predicting credit ratings for firms likely to face financing constraints. We conclude that the financing constraint is an important dimension in the market implied ratings process. Our findings are of relevance to managers, investors and rating agencies seeking to understand the mechanism through which financing constraints affect credit ratings. 相似文献
904.
We posit that the benefits and costs of multiple directorships are conditional on firm characteristics. We find firm valuation is positively associated with multiple directorships in (i) firms with high advising needs and (ii) firms with high external financing needs. These beneficial effects of multiple directorships are generally stronger in countries with weak shareholder rights and in firms that are widely held. However, when controlling shareholder hold high voting‐rights to cash‐flow rights, multiple directorships reduce firm valuation, especially in countries with weak shareholder rights and in closely held firms. As multiple directorships increases, cash holdings (capital expenditures) contribute less to shareholder value. The negative association between value of cash (capital expenditure) and busy boards is mitigated in firms with (i) high advising needs, (ii) high external financing needs and (iii) less entrenched ownership structures. 相似文献
905.
During the financial crisis, sovereign ratings have come under increased public scrutiny due to their strong impact on sovereign borrowing costs and hence financial stability of countries. However, their influence on corporations within and outside the respective nations has so far attracted only limited attention, although several academics have provided intriguing insights in this regard. In order to obtain a structured overview of this relatively young strand of research, this paper reviews key insights and conclusions that the extant literature offers on the role of sovereign creditworthiness for corporations. Herein, it focuses on the effects that have been observed for the corporate business environment, access to capital, and foreign investment activities. Different research issues providing fertile ground for future studies are identified. 相似文献
906.
Investors widely use contracts for difference (CFDs) to leverage and short sell underlying financial assets. We investigate the after cost performance of investors in Australian Securities Exchange listed share CFDs, and find that market order CFD trades earn small positive returns at the daily horizon, with negative returns reported for one month to one year horizons due to financing costs. Market orders also net sell positions, which suggests that investors use CFDs for shorting opportunities. Overall, we find that liquidity demanders in CFDs obtain favourable execution, which is inconsistent with the view that CFDs are used by naive individuals. 相似文献
907.
This article provides evidence that smaller, regional public financial intermediaries contributed to Germany's industrial development, using a new dataset of the foundation year and location of Prussian savings banks. This extends the bank–growth nexus beyond its traditional focus on large universal banks. Since savings banks were public financial intermediaries, our results further suggest that state intervention can be successful in the financial sector, particularly at the early stages of industrial development when capital requirements are manageable, and access to international capital markets is limited. 相似文献
908.
Dan Bogart Oliver Dunn Eduard J. Alvarez‐Palau Leigh Shaw‐Taylor 《The Economic history review》2021,74(1):87-114
There is a debate about whether coastal shipping experienced substantial productivity growth prior to the advent of steam power. To study changes over the long eighteenth century, this article uses thousands of coastal journey times culled from Board of Trade crew lists between 1835 and 1844 and coastal port books for the mid‐to‐late 1600s, along with a newly digitized coastal network. Comparisons between matched samples show that journey speeds, defined as miles sailed per day, were significantly higher in the crew lists compared to the port books, and that voyage cycle times, defined as days between starting two identical voyages, were substantially lower. The study also shows that voyage times in the east coast coal trade were substantially lower around 1840 than around 1700, but the difference was much smaller when peace years are compared. These new data imply that total factor productivity growth in the east coast coal trade was significant, especially if one accounts for gains from peace after 1815. The findings contribute to the larger literature studying the rate and sources of productivity growth during the industrial revolution. 相似文献
909.
Gil S. Bae Seung UK Choi Phillip T. Lamoreaux Jae Eun Lee 《Contemporary Accounting Research》2021,38(1):586-620
We examine the relation between low‐quality internal controls and audit fee premiums. Using a novel data set of audit hours and audit fees we find, consistent with the audit risk model, that auditors increase their effort (hours) owing to low internal control quality. We find that auditors also charge a significant fee premium to clients with internal control weaknesses. This premium is observed for severe internal control weaknesses and companies with low‐quality alternative governance mechanisms. The results are robust to multiple methods to address endogeneity, including company fixed effects, difference‐in‐differences design, and a propensity score‐matched sample. Taken as a whole, low internal control quality leads to fee premiums, which are a deadweight loss to client companies. 相似文献
910.
As the significance of service industry grows, its relationship to overall economic growth and organizational performance (OP) has also become an issue of prominence. Tangibilization is widely known as one of the means of overcoming the weaknesses of service intangibility and improving OP. This research explores the relationship between service tangibilization and OP. Furthermore, the moderating effect of the fit between service tangibilization and OP will also be discussed in the business context. Specifically, the Korean natural gas industry is selected to test the developed hypotheses. The managers who have experience with managing a service business in either the wholesale or retail sector of this industry were surveyed. The results imply that there exists a significant relationship between service tangibilization and OP, with the mental fit positively strengthening some of the relationships between these two constructs. It can be inferred from this that it is important for companies in the natural gas industry to attain the right fit of mental tangibilization in order to effectively deploy service tangibilization and maximize their OP. 相似文献