全文获取类型
收费全文 | 30259篇 |
免费 | 578篇 |
专业分类
财政金融 | 5481篇 |
工业经济 | 2220篇 |
计划管理 | 5083篇 |
经济学 | 6817篇 |
综合类 | 344篇 |
运输经济 | 181篇 |
旅游经济 | 487篇 |
贸易经济 | 4742篇 |
农业经济 | 1445篇 |
经济概况 | 3965篇 |
邮电经济 | 72篇 |
出版年
2021年 | 176篇 |
2020年 | 280篇 |
2019年 | 389篇 |
2018年 | 548篇 |
2017年 | 544篇 |
2016年 | 527篇 |
2015年 | 392篇 |
2014年 | 613篇 |
2013年 | 2887篇 |
2012年 | 803篇 |
2011年 | 871篇 |
2010年 | 703篇 |
2009年 | 847篇 |
2008年 | 879篇 |
2007年 | 799篇 |
2006年 | 733篇 |
2005年 | 697篇 |
2004年 | 688篇 |
2003年 | 682篇 |
2002年 | 620篇 |
2001年 | 631篇 |
2000年 | 624篇 |
1999年 | 539篇 |
1998年 | 537篇 |
1997年 | 519篇 |
1996年 | 518篇 |
1995年 | 467篇 |
1994年 | 521篇 |
1993年 | 521篇 |
1992年 | 488篇 |
1991年 | 518篇 |
1990年 | 472篇 |
1989年 | 389篇 |
1988年 | 402篇 |
1987年 | 396篇 |
1986年 | 411篇 |
1985年 | 589篇 |
1984年 | 565篇 |
1983年 | 555篇 |
1982年 | 536篇 |
1981年 | 461篇 |
1980年 | 452篇 |
1979年 | 459篇 |
1978年 | 390篇 |
1977年 | 359篇 |
1976年 | 283篇 |
1975年 | 283篇 |
1974年 | 264篇 |
1973年 | 244篇 |
1972年 | 201篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
101.
An aggregate analysis of supply response in the paddy (rice) sector of Sri Lanka during 1952-87 is conducted to identify the impact of pricing policy, irrigation programmes, institutional credit and concessional sales on area, yield and overall supply. The focus of the estimation procedure is the selection of an appropriate functional form for regressions and on the price variable that best represents the price to which producers respond in making area and yield decisions. In the case of both area and yield, the econometric criteria favour the acceptance of log-linear equations with the ratio of the guaranteed price of paddy to fertiliser price. On the basis of overall supply elasticity estimates, it is concluded that while pricing policy, irrigation programmes and institutional credit provide incentives to the expansion of paddy production, concessional sales of rice act as a disincentive. 相似文献
102.
103.
104.
105.
The recent revival of interest in the issue of limiting auditors' liability raises questions about the potential effect of such a limitation on auditors' performance. This paper considers the consequences of limited liability from the perspectives of contracting theory and economic arguments. We examine the potential effect of a reduction in auditors' liability on the standard of care or quality of service they provide, emphasising the "calculus of negligence" concept used by Australian courts. We consider the potential impact of reduced liability on the auditor's decision to shirk responsibilities (the moral hazard problem) and on the value placed on audit services. The analysis shows that placing a statutory cap on auditors' liability has the potential to reduce the effectiveness of bonding mechanisms; provide an avenue for divergent behaviour; lower the level of care provided by auditors; and decrease the value of audit services. 相似文献
106.
Prior to making important decisions, marketing managers go through an evaluation process in which available alternatives are
compared. Yet, no systematic discussion of the evaluation process exists in the marketing literature. This article reviews
the marketing and behavioral decision theory literature in order to identify factors that may cause errors in the two fundamental
elements of the evaluation process—the estimation of probabilities and the determination of the value of outcomes. Propositions
are developed that specify circumstances in which marketing management decisions may be influenced by judgmental biases, and
procedures are identified for debiasing such judgments. 相似文献
107.
Up in the Air: GTE's Experience in the MTA Auction for Personal Communication Services Licenses 总被引:2,自引:0,他引:2
David J. Salant 《Journal of Economics & Management Strategy》1997,6(3):549-572
In late 1994, GTE, one of the largest telecommunications firms in the world, entered an auction for the rights to provide personal communications services (PCS) using the electromagnetic spectrum. The administering agency, the Federal Communications Commission, adopted a novel multiple-round format for the PCS auction. The format presented GTE with a complex bidding problem. This article describes how the GTE bidding team answered the following question: Given its budget and valuations and the information available about rival bidders, how should GTE bid to achieve the best attainable outcome? 相似文献
108.
J. A. L. Cranfield 《Revue canadienne d'agroeconomie》2002,50(2):117-133
An optimal advertising rule is derived for a good sold in an open market (beef) when a related substitute good (chicken) is production rationed and whose imports are subject to trade restrictions. Such a rule is developed using a multi-market equilibrium displacement model that reflects demand interrelatedness, open trade of the advertised good (beef), with rationed production and restricted trade of the related good (chicken). The optimal rule nests earlier optimal advertising rules under a variety of conditions. Results underscore the importance of accounting for cross-product advertising effects. When these effects are present (absent), the optimal generic beef advertising intensity in Canada is shown to fall (rise) with elimination of supply management in Canada's chicken sector.
L'auteur dérive une règie sur l'optimisation de la publicité pour un produit vendu sur un marché libre (bœuf) en présence d'un produit de substitution rationné dont on restreint les importations. Pour parvenir à une telle règie, l'auteur a utilisé un modèle de déplacement du point d'équilibre sur un marché multiple illustrant les liens entre la demande des produits concernés, le libre-échange du produit faisant l'objet de la publicité (bœuf) et la restriction de la production et des importations du produit apparenté (poulet). La règie d'optimisation englobe les règles antérieures sur l'optimisation de la publicité dans diverses situations. Les résultats soulignent qu'il est important de prendre en compte les retombées de la publicité sur les autres produits. Au Canada, en présence (absence) de telles retombées, le degré optimal de publicité générique sur le bœuf diminue (augmente) avec l'abolition de la gestion de l'offre de poulet. 相似文献
L'auteur dérive une règie sur l'optimisation de la publicité pour un produit vendu sur un marché libre (bœuf) en présence d'un produit de substitution rationné dont on restreint les importations. Pour parvenir à une telle règie, l'auteur a utilisé un modèle de déplacement du point d'équilibre sur un marché multiple illustrant les liens entre la demande des produits concernés, le libre-échange du produit faisant l'objet de la publicité (bœuf) et la restriction de la production et des importations du produit apparenté (poulet). La règie d'optimisation englobe les règles antérieures sur l'optimisation de la publicité dans diverses situations. Les résultats soulignent qu'il est important de prendre en compte les retombées de la publicité sur les autres produits. Au Canada, en présence (absence) de telles retombées, le degré optimal de publicité générique sur le bœuf diminue (augmente) avec l'abolition de la gestion de l'offre de poulet. 相似文献
109.
The use of transferable discharge permits as a water pollution control policy is rapidly increasing in the United States. Drawing on evidence from existing water quality trading programs, this paper provides a taxonomy of the forms that such markets take. Four main structures are identified: exchanges, bilateral negotiations, clearinghouses, and sole-source offsets. Each of these structures has its own strengths and weaknesses; none is optimal for all scenarios. Since market structure is largely determined by a program's rules, policy makers should be aware of the differences between these structures and the conditions under which each comes to be. 相似文献
110.
Richard J. Butler Marjorie L. Baldwin William G. Johnson† 《The Journal of risk and insurance》2006,73(2):309-334
We extend the research on postinjury employment by estimating productivity losses for workers with permanent partial disabilities (PPDs) in the first three years after injury. Our method distinguishes between productivity losses attributed to spells of work absence versus reduced earnings during spells of employment. The method is applied to data for 800 Ontario workers with PPDs. The results document large productivity losses persisting at least three years after injury, with different loss patterns for workers returning to stable versus unstable employment. Human capital investments or job accommodations can reduce productivity losses, but the significant determinants of losses differ for the stable versus unstable employment groups. 相似文献