全文获取类型
收费全文 | 25250篇 |
免费 | 722篇 |
国内免费 | 1篇 |
专业分类
财政金融 | 5294篇 |
工业经济 | 2112篇 |
计划管理 | 4349篇 |
经济学 | 5568篇 |
综合类 | 265篇 |
运输经济 | 183篇 |
旅游经济 | 429篇 |
贸易经济 | 3955篇 |
农业经济 | 1299篇 |
经济概况 | 2439篇 |
邮电经济 | 80篇 |
出版年
2021年 | 153篇 |
2020年 | 319篇 |
2019年 | 450篇 |
2018年 | 482篇 |
2017年 | 547篇 |
2016年 | 516篇 |
2015年 | 370篇 |
2014年 | 571篇 |
2013年 | 2550篇 |
2012年 | 699篇 |
2011年 | 753篇 |
2010年 | 664篇 |
2009年 | 811篇 |
2008年 | 750篇 |
2007年 | 691篇 |
2006年 | 668篇 |
2005年 | 595篇 |
2004年 | 567篇 |
2003年 | 630篇 |
2002年 | 573篇 |
2001年 | 530篇 |
2000年 | 576篇 |
1999年 | 489篇 |
1998年 | 491篇 |
1997年 | 506篇 |
1996年 | 453篇 |
1995年 | 454篇 |
1994年 | 455篇 |
1993年 | 423篇 |
1992年 | 446篇 |
1991年 | 455篇 |
1990年 | 374篇 |
1989年 | 308篇 |
1988年 | 311篇 |
1987年 | 306篇 |
1986年 | 320篇 |
1985年 | 458篇 |
1984年 | 473篇 |
1983年 | 419篇 |
1982年 | 409篇 |
1981年 | 410篇 |
1980年 | 374篇 |
1979年 | 359篇 |
1978年 | 314篇 |
1977年 | 243篇 |
1976年 | 243篇 |
1975年 | 224篇 |
1974年 | 188篇 |
1973年 | 207篇 |
1972年 | 142篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
W. Scott Bauman C. Mitchell Conover Don R. Cox 《The Journal of Financial Research》2002,25(2):169-186
Previous research finds that large companies previously judged to be excellent growth companies have subsequently been poor investments. We examine small companies selected by Business Week on the basis of multiple criteria used in annual articles featuring highly rated growth companies. We study the investment performance over the three years before eleven annual Business Week publications and the three years after publication. We find positive excess returns in the pre‐publication period, but negative excess returns in the post‐publication period. This reversal in investment performance appears to be due to a mean‐reversion tendency in operating performance, in which the earnings and the past rates of return on capital of such companies subsequently decrease significantly. 相似文献
62.
E. A. Abramova D. R. Belousov K. V. Mikhailenko 《Studies on Russian Economic Development》2008,19(1):35-45
This article examines the economic outcome of 2006 and builds a forecast for 2007–2010. The medium-term development risks of the Russian economy are analyzed. 相似文献
63.
Because the break-up of conglomerates typically produces substantial increases in shareholder wealth, many commentators have argued that the conglomerate form of organization is inefficient. This article reports the findings of a number of recent academic studies, including the authors' own, that examine the causes and consequences of corporate diversification. Although theoretical arguments suggest that corporate diversification can have benefits as well as costs, several studies have documented that diversified firms trade at a significant discount from their single-segment peers. Estimates of this discount range from 10–15% of firm value, and are larger for “unrelated” diversification than for “related” diversification. If corporate diversification has generally been a value-reducing managerial strategy, why do firms remain diversified? One possibility, which the authors label the “agency cost” hypothesis, is that top executives without substantial equity stakes may have incentives to maintain a diversification strategy even if doing so reduces shareholder wealth. But, as top managers' ownership stakes increase, they bear a greater fraction of the costs associated with value-reducing policies and are therefore less likely to take actions that reduce shareholder wealth. Also, to the extent that outside blockholders monitor managerial behavior, the agency cost hypothesis predicts that diversification will be less prevalent in firms with large outside blockholders. Consistent with this argument, the authors find that companies in which managers own a significant fraction of the firm's shares, and in which blockholders own a large fraction of shares, are significantly less likely to be diversified. If agency problems lead managers to maintain value-reducing diversification strategies, what is it that leads some of these same firms to refocus? The agency cost hypothesis predicts that managers will reduce diversification only if pressured to do so by internal or external mechanisms that reduce agency problems. Consistent with this argument, the authors find that decreases in diversification appear to be precipitated by market disciplinary forces such as block purchases, acquisition attempts, and management turnover. 相似文献
64.
65.
This paper examines the influence of unemployment insurance (UI) on the length of nonemployment spells experienced by young workers. The analysis introduces a flexible duration model to estimate the effects of the weekly benefit amount and weeks of eligibility on the amount of time spent between jobs by men, distinguishing between the experiences of UI and non-UI recipients. The empirical findings suggest three conclusions: (1) UI recipients experience longer spells of nonemployment than their non-UI recipient counterparts, at least up to the point of exhaustion of UI benefits; (2) the level of the weekly benefit amount does not significantly affect the length of nonemployment spells; and (3) increasing the number of weeks of eligibility offered by a UI program leads to longer episodes of nonemployment. 相似文献
66.
67.
Three policy-relevant questions about multifamily mortgage originations (MFOs) are addressed. First, what is the annual volume of MFOs? This analysis highlights differences and problems among three publicly available multifamily lending surveys; the 1993 volume is estimated at $30 billion. Second, what is the size distribution of multifamily mortgages? Using kernel density estimation, variation in this distribution among central cities and suburbs, underserved areas, and lender type is examined. Third, what are the primary determinants of the variation in multifamily lending? A relatively simple regression model is estimated to shed light on the variables most highly correlated with multifamily lending. Tract income relative to MSA median income and minority concentrations are shown to be highly correlated with lending volume, but the largest source of variation is the number of multifamily rental units in the tract. 相似文献
68.
The Role of Multinational Firms in the Wage-Gap Debate 总被引:2,自引:0,他引:2
The observation of an increase in the ratio of skilled to unskilled wages in the high-income countries and in some cases in low/middle-income countries has led to considerable discussion and controversy as to its cause. Virtually none of the analyses have considered a role for multinational investment in explaining the wage-gap phenomenon. This paper adapts the authors' earlier work to consider what role multinationals might play in factor markets. It identifies circumstances under which investment liberalization is likely to raise the wage gap in both the skilled-labor abundant and the unskilled-labor abundant country. 相似文献
69.
Managing Price Risk in the Pakistan Wheat Market 总被引:1,自引:0,他引:1
The government intervenes in the wheat market in Pakistan toensure food security for consumers and to provide adequate andstable incomes for producers. The cost of this interventionis high, and its impact on the performance of agriculture hasbeen significantly negative. The World Bank is urging policychanges such as removing agricultural trade restrictions, pricesupports, and subsidies. However, policymakers often resistsuch reforms, fearing that they will expose the domestic marketto fluctuating international commodity prices. This article assesses the risk management needs of the sectorand evaluates whether using financial instrumentssuchas commodity hedging using futures, options, or swapswouldimprove risk management. Simulations based on monthly data for1994 show that market-based methods of risk management couldreduce the impact of international price volatility on the domesticmarket without incurring high government cost or distortingprice signals. 相似文献
70.
This study examines the influence of day-of-the-week patterns in security returns on long-run IPO underperformance. Comparisons are made between the IPOs in Ritter's [20] database, and a constructed set of matching firms based on SIC code and size, using NYSE, AMEX, and NASDAQ securities. It is found that virtually all of the IPO underperformance occurs on Mondays and Tuesdays and that the degree of underperformance significantly differs from other days. Thus, a common explanation may exist for the general day-of-the-week pattern in security returns and IPO long-run underperformance. 相似文献