全文获取类型
收费全文 | 29853篇 |
免费 | 700篇 |
专业分类
财政金融 | 5813篇 |
工业经济 | 2095篇 |
计划管理 | 4844篇 |
经济学 | 6428篇 |
综合类 | 325篇 |
运输经济 | 185篇 |
旅游经济 | 457篇 |
贸易经济 | 5415篇 |
农业经济 | 1245篇 |
经济概况 | 3495篇 |
信息产业经济 | 1篇 |
邮电经济 | 250篇 |
出版年
2021年 | 213篇 |
2020年 | 320篇 |
2019年 | 487篇 |
2018年 | 676篇 |
2017年 | 636篇 |
2016年 | 659篇 |
2015年 | 468篇 |
2014年 | 660篇 |
2013年 | 3113篇 |
2012年 | 882篇 |
2011年 | 938篇 |
2010年 | 863篇 |
2009年 | 925篇 |
2008年 | 902篇 |
2007年 | 786篇 |
2006年 | 741篇 |
2005年 | 682篇 |
2004年 | 647篇 |
2003年 | 660篇 |
2002年 | 647篇 |
2001年 | 567篇 |
2000年 | 598篇 |
1999年 | 525篇 |
1998年 | 539篇 |
1997年 | 470篇 |
1996年 | 479篇 |
1995年 | 420篇 |
1994年 | 440篇 |
1993年 | 442篇 |
1992年 | 468篇 |
1991年 | 459篇 |
1990年 | 409篇 |
1989年 | 371篇 |
1988年 | 306篇 |
1987年 | 337篇 |
1986年 | 359篇 |
1985年 | 546篇 |
1984年 | 480篇 |
1983年 | 488篇 |
1982年 | 426篇 |
1981年 | 412篇 |
1980年 | 413篇 |
1979年 | 394篇 |
1978年 | 346篇 |
1977年 | 347篇 |
1976年 | 337篇 |
1975年 | 302篇 |
1974年 | 247篇 |
1973年 | 237篇 |
1972年 | 189篇 |
排序方式: 共有10000条查询结果,搜索用时 140 毫秒
31.
This paper presents goal commitment as one stage of a multidimensional goal striving process that affects feedback acquisition, processing, and use during the achievement of performance goals. Specifically, this paper argues that higher goal commitment leads to more effective acquisition, processing, and use of feedback that in turn fosters higher performance than does lower goal commitment. To provide a preliminary test of this proposition, data from an earlier field study conducted by the author and colleagues [J. Occup. Organ. Psychol. 72 (1999) 107] were used to examine the moderating effects of goal commitment on the relationship between perceived task feedback amount and work performance of 196 rehabilitation counselors. Results were consistent with this proposed interaction, as perceived task feedback amount had a positive linear relationship with work performance for higher goal commitment rehabilitation counselors and a negative linear relationship with performance for lower goal commitment counselors. The discussion urges researchers to broaden their views of goal commitment beyond the goal difficulty–performance relationship and to devote more attention to moderators of the feedback–performance relationship. Directions for future research and practical implications are also discussed. 相似文献
32.
Christopher G. Reddick 《Financial Accountability and Management》2003,19(4):315-339
This article tests three common budgetary decision–making theories in the US states. Pooled time series cross–section analysis is used from 1960 to 1996 to test the garbage can theory and incrementalism, and from 1989 to 1996 to test various theories of rational budgeting. The results demonstrate that there was some support for all three theories in terms of their impact on reducing state budget outputs. Rational budgeting reduces expenditures in aggregate, incrementalism has relatively low explanatory power below the aggregates, and garbage can budgeting is more prevalent in functional areas than for government as a whole. These findings imply that the future research agenda on budgetary decision–making theories should focus more on a system–wide approach, which takes into account many of the characteristics of all three rival models of decision–making, rather than exclusively focusing on each one singly. 相似文献
33.
We consider the problem of estimating a probability density function based on data that are corrupted by noise from a uniform distribution. The (nonparametric) maximum likelihood estimator for the corresponding distribution function is well defined. For the density function this is not the case. We study two nonparametric estimators for this density. The first is a type of kernel density estimate based on the empirical distribution function of the observable data. The second is a kernel density estimate based on the MLE of the distribution function of the unobservable (uncorrupted) data. 相似文献
34.
Eric F. Parkinson 《International Journal of Technology and Design Education》2004,14(3):219-243
Construction kits have played a significant part in nurturing the growth and development of the minds and manipulation-based
skills of children (and adults) in formal and non-formal education settings. These kits have origins rooted in the representation
of the built world and now have a diversity of form and function, including technical versions with moving parts. This article
examines some of the historically based ideas that lie behind the role that kits may have in terms of physical modelling.
The article traces the transformation of kits from simple bricks and blocks into more complicated pieces for space-filling
and achieving the transfer of forces and motion. This transformation occurred during the Victorian era when the influence
of the ideas of educationalists and, perhaps rather strangely, exponents of early aviation, played major roles in determining
the diversity of forms of construction kit and modelled possibilities that are now to be seen in classrooms and homes. The
article ends with a review of some of the lessons from the past and present that will need to be considered in relation to
concrete modelling in schools for the future.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
35.
FDI facilitated by agglomeration economies: evidence from manufacturing and services joint ventures in China 总被引:4,自引:0,他引:4
The open door policy of China’s economic reform since the 1980s has attracted heavy foreign direct investment (FDI) flows into China and especially to Guangdong (particularly the Pearl River Delta region, PRD) and induced significant economic growth during the past two decades. While there exist various classical theories of FDI in attempting to identify the determinants of FDI inflow and to explain the behavior of FDI flows, limited attention has been given from the perspective of agglomeration effects generated by a core-periphery (CP) relation.This paper intends to study the impacts of agglomerations on FDI inflows in the context of Krugman’s CP relation (1991) by investigating (1) the formation of a CP relation via gravity model analysis; (2) whether different types of industry FDI flows will respond differently in the CP-system, given agglomeration effects; and (3) whether FDI origin and firm scale matter in affecting FDI flows.A database consisting of a population frame of 37,742 firm-level manufacturing and services joint ventures investing in Guangdong in 1998 was used. Empirical results show that the agglomerations of the CP relation have affected FDI flow patterns. While both manufacturing and services FDI and sources of investment responded differently to the impacts, smaller firms were found more responsive to the CP-agglomeration settings regardless of FDI by industry type and by source. The significance and implications of the CP-system to further facilitate FDI in the region are discussed. 相似文献
36.
Rong Fan Joseph G. Haubrich Peter Ritchken James B. Thomson 《Journal of Financial Services Research》2003,24(2-3):149-179
Recent advances in asset pricing—the reduced-form approach to pricing risky debt and derivatives—are used to quantitatively evaluate several proposals for mandatory bank issue of subordinated debt. We find that credit spreads on both fixed- and floating-rate subordinated debt provide relatively clean signals of bank risk and are not unduly influenced by nonrisk factors. Fixed-rate debt with a put is unacceptable, but making the putable debt floating resolves most problems. Our approach also helps to clarify several different notions of “bank risk.” 相似文献
37.
38.
39.
An Empirical Analysis of Entrant and Incumbent Bidding in Road Construction Auctions 总被引:3,自引:0,他引:3
Dakshina G. De Silva Timothy Dunne Georgia Kosmopoulou 《The Journal of industrial economics》2003,51(3):295-316
This paper explores differences in the bidding patterns of entrants and incumbents in road construction auctions. We find that entrants bid more aggressively and win auctions with significantly lower bids than incumbents. The differences in their bidding patterns are consistent with a model of auctions in which the distribution of an entrant's costs exhibits greater dispersion than that of an incumbent's and relations of stochastic dominance in the distributions do not persist for the entire range of estimated costs. We also find that more efficient firms bid, on average, more aggressively and firms with greater backlogs bid less aggressively. 相似文献
40.
Richard D. Horan Jason F. Shogren Erwin Bulte 《Scottish journal of political economy》2003,50(2):131-148
One Pleistocene mystery is why early North Americans eradicated their large, potentially domesticable animals (e.g., horses), whereas early Europeans did not. A commonly‐held hypothesis is that European species were evasive due to co‐evolution with hominids, whereas North American animals were naïve and unable to adapt quickly enough when experienced human hunters arrived from Eurasia. We explore this hypothesis with a paleoeconomic model of co‐evolution that integrates human hunting investments and wildlife population responses. We find that investments in hunting ability, based on the relative scarcity of prey species, could have mattered more than wildlife ‘naivety’ in explaining the extinction. 相似文献