全文获取类型
收费全文 | 20079篇 |
免费 | 108篇 |
专业分类
财政金融 | 3688篇 |
工业经济 | 1535篇 |
计划管理 | 3540篇 |
经济学 | 4431篇 |
综合类 | 242篇 |
运输经济 | 179篇 |
旅游经济 | 287篇 |
贸易经济 | 3355篇 |
农业经济 | 758篇 |
经济概况 | 2044篇 |
信息产业经济 | 4篇 |
邮电经济 | 124篇 |
出版年
2023年 | 107篇 |
2021年 | 151篇 |
2020年 | 240篇 |
2019年 | 392篇 |
2018年 | 399篇 |
2017年 | 477篇 |
2016年 | 450篇 |
2015年 | 320篇 |
2014年 | 532篇 |
2013年 | 1958篇 |
2012年 | 612篇 |
2011年 | 690篇 |
2010年 | 580篇 |
2009年 | 721篇 |
2008年 | 604篇 |
2007年 | 531篇 |
2006年 | 483篇 |
2005年 | 516篇 |
2004年 | 445篇 |
2003年 | 486篇 |
2002年 | 442篇 |
2001年 | 418篇 |
2000年 | 408篇 |
1999年 | 409篇 |
1998年 | 348篇 |
1997年 | 372篇 |
1996年 | 333篇 |
1995年 | 290篇 |
1994年 | 301篇 |
1993年 | 320篇 |
1992年 | 306篇 |
1991年 | 305篇 |
1990年 | 270篇 |
1989年 | 246篇 |
1988年 | 236篇 |
1987年 | 231篇 |
1986年 | 251篇 |
1985年 | 329篇 |
1984年 | 291篇 |
1983年 | 273篇 |
1982年 | 265篇 |
1981年 | 255篇 |
1980年 | 244篇 |
1979年 | 250篇 |
1978年 | 205篇 |
1977年 | 198篇 |
1976年 | 177篇 |
1975年 | 116篇 |
1974年 | 134篇 |
1973年 | 125篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
11.
R. P. Byron 《Journal of Applied Econometrics》1992,7(3):309-322
The time-series distributed lag techniques of econometrics can be usefully applied to cross-sectional, spatial and cross-section time-series situations. The application is perfectly natural in cross-section, time-series models when regression coefficients evolve systematically as the cross-section grouping variable changes. The evolution of such coefficients lends itself to polynomial approximation or more general smoothing restrictions. These ideas are not new, Gersovitz and McKinnon (1978) and Trivedi and Lee (1981) providing two of the earliest applications of cross-equation smoothing techniques. However, their applications were in the context of coefficient variation due to seasonal changes and this may account for the non-diffusion of these techniques. The approach here is illustrated in the context of age-specific household formation equations based on census data, using Almon polynomials when the regression coefficients vary systematically by age group. A second application is provided, using spatial data, explaining the incidence of crime, by region; using polynomial and geometric smoothing to model distance declining regional effects. 相似文献
12.
D. P. Kennedy 《Mathematical Finance》1993,3(1):55-63
For a compound Poisson process with negative drift and jump distribution consisting of a mixture of exponentials on [0) and on (-, 0), an exact expression is derived for the probability of hitting the level c, c > 0. the problem is motivated by modeling the returns from trading on financial markets. 相似文献
13.
Previous empirical research indicates that corporate insiders tend to increase (decrease) their shareholdings before events that increase (decrease) firm value. More recent evidence suggests, however, that passage of the Insider Trading Sanctions Act of 1984 (ITSA) may have deterred this behavior. Our results indicate that before passage of the ITSA, insiders exploited their access to nonpublic information by selling shares before the announcement of equity issues. However, after passage of the ITSA insiders no longer displayed this behavior. We conclude the ITSA has a deterrent effect, which is more heavily concentrated on insiders at the highest level of the firm who are most visible to regulators and other market participants. 相似文献
14.
15.
This paper models the demand for stockbrokers' services in Australia, consisting of two related services, agency trades and principal trades. The relationship between agency and principal trades is estimated. The results indicate that the two services are complements rather than substitutes. Using unique accounting information, a model of agency and principal trading activities is estimated to determine the welfare effects of (i) deregulating brokerage commissions and (ii) a ban on principal trading by brokers. The results show a sizeable welfare gain to investors (amounting to about 60% of the gross revenue of brokers) stemming from deregulation of the minimum charge for agency trades. The loss in profitability by brokers due to deregulation is also computed and shown to be negligible. The results also show that due to complementarity, a ban on principal trading, even with deregulation of agency trading, can impose an arbitrarily high cost on investors which could, in principle, offset the gains from agency deregulation. 相似文献
16.
KENNETH J. KLASSEN JEFFREY A. PITTMAN MARGARET P. REED STEVE FORTIN 《Contemporary Accounting Research》2004,21(3):639-680
We provide evidence on the impact of tax incentives and financial constraints on corporate R&D expenditure decisions. We contribute to extant research by comparing R&D expenditures in the United States and Canada, thereby exploiting the differences in the two countries' R&D tax credit mechanisms and generally accepted accounting principles. The two tax incentive mechanism designs are consistent with differing views of the degree of financial constraints faced by firms in these economies. Our sample also allows us to explore the effects of capitalizing R&D on Canadian firms. Employing a matched design, we document relations between tax credit incentives and R&D spending consistent with both Canadian and U.S. public companies responding as though they are not financially constrained. We estimate that the Canadian credit system induces, on average, $1.30 of additional R&D spending per dollar of taxes forgone while the U.S. system induces, on average, $2.96 of additional spending. We also find that firms that capitalize R&D costs in Canada spend, on average, 18 percent more on R&D. Collectively, this evidence is important to the ongoing debates in both countries concerning the appropriate design of incentives for R&D and is consistent with the assumptions found in the U.S. tax credit system, but not those found in the Canadian system. 相似文献
17.
18.
Andrew Prevost Ramesh P. Rao & John D. Wagster 《Journal of Business Finance & Accounting》2002,29(7&8):1079-1104
On April 1, 1988, New Zealand stopped the double taxation of dividends by implementing a full dividend imputation program. Because many believed that the tax advantage of debt had led to more highly leveraged firms subject to greater financial risk than was socially optimal, it was hoped the removal of incentives to finance with debt would result in a more efficient allocation of capital. The empirical results suggest that the shareholder wealth gain from dividend imputation was more than offset in firms with large debt levels. Moreover, an examination of debt ratios indicates debt levels declined in the post–imputation period. 相似文献
19.
20.
This study attempts to infuse relationship marketing theory into the study of logistics outsourcing relationships. In particular, the study demonstrates that not all of the partnerships between customers and providers of third‐party logistics services are the same in terms of their level of development. The existence of distinct levels of partnership established previously in the logistics literature is partially supported and a relationship between level of partnership development and the customer perceptions of key relationship marketing elements and outcomes is established. While exploratory in nature, these findings suggest there are benefits for the increased costs of developing closer partnerships. 相似文献