全文获取类型
收费全文 | 1329篇 |
免费 | 64篇 |
专业分类
财政金融 | 312篇 |
工业经济 | 84篇 |
计划管理 | 187篇 |
经济学 | 276篇 |
综合类 | 22篇 |
运输经济 | 13篇 |
旅游经济 | 22篇 |
贸易经济 | 272篇 |
农业经济 | 68篇 |
经济概况 | 137篇 |
出版年
2023年 | 18篇 |
2022年 | 10篇 |
2021年 | 23篇 |
2020年 | 31篇 |
2019年 | 40篇 |
2018年 | 51篇 |
2017年 | 52篇 |
2016年 | 49篇 |
2015年 | 36篇 |
2014年 | 39篇 |
2013年 | 156篇 |
2012年 | 50篇 |
2011年 | 84篇 |
2010年 | 55篇 |
2009年 | 76篇 |
2008年 | 64篇 |
2007年 | 54篇 |
2006年 | 51篇 |
2005年 | 30篇 |
2004年 | 35篇 |
2003年 | 26篇 |
2002年 | 25篇 |
2001年 | 30篇 |
2000年 | 23篇 |
1999年 | 25篇 |
1998年 | 23篇 |
1997年 | 19篇 |
1996年 | 14篇 |
1995年 | 19篇 |
1994年 | 19篇 |
1993年 | 7篇 |
1992年 | 7篇 |
1991年 | 13篇 |
1990年 | 9篇 |
1989年 | 11篇 |
1988年 | 6篇 |
1987年 | 6篇 |
1986年 | 4篇 |
1985年 | 13篇 |
1984年 | 10篇 |
1983年 | 12篇 |
1982年 | 6篇 |
1981年 | 7篇 |
1980年 | 6篇 |
1979年 | 7篇 |
1978年 | 6篇 |
1977年 | 9篇 |
1976年 | 3篇 |
1975年 | 6篇 |
1973年 | 4篇 |
排序方式: 共有1393条查询结果,搜索用时 22 毫秒
61.
This study explores the extent to which local amenities are related to house price volatility, returns and risk‐adjusted returns across 238 MSAs. We find strong evidence that high amenity areas experience greater price volatility. In regards to returns, high amenity areas experience greater (lower) real returns in appreciating (depreciating) markets. However, high amenity areas experience little to no abnormal risk‐adjusted returns. Results from the study are robust to an endogenous treatment of amenities and land supply elasticity. Overall, we conclude that the desirability of a metropolitan area is a significant channel through which land values drive house price dynamics. 相似文献
62.
Cycle mode share increase is widely desired, but highway design practitioners lack the numerical tools to deliver infrastructure, instead relying on design standards and intuition, with little literature basis. As a case in point, the US Highway Capacity Manual (which is well used internationally) has developed levels of service for cycle infrastructure that are, at their core, based on an assumption of noninteraction between multiple cyclists. This paper uses a modified implementation of the Social Force Model to test the validity of this assumption. Necessary changes such as the consideration of acceleration characteristics and minimum maintainable speed are included. The resulting model produces valid outcomes in keeping with established traffic flow properties, reflecting three-phase traffic flow theory and the ability for the stochastic elements in traffic flow to cause flow breakdown. The developed simulation indicates that there is a fundamental difference in outcome if cyclists are assumed to have a fixed speed versus one they can change given their surroundings. This difference in outcomes is found to exist within the range of literature design flow capacities for bicycle infrastructure and also yields emergent outcomes that align closely with those known behaviors of highway vehicles, which intuitively transfer to cyclists. These findings reinforce the standing need for large-scale empirical studies to determine the basic numerical and behavioral parameters for cyclists, upon which all design ultimately rests. 相似文献
63.
Craig Morton Thomas Martin Budd Gillian Harrison Giulio Mattioli 《International Journal of Sustainable Transportation》2017,11(7):493-506
A mixture of potentially significant changes in technology, commercial structures, and social practices is currently entering the automobility system. These changes have the potential to combine together and lead to a substantial shift in the manner in which society fuels, owns, and makes use of its cars. This paper reports a research project that made use of focus groups to examine the narratives of British transport professionals concerning forthcoming developments in the automobility system. Specific attention was given to what the expectations for future change in automobility are, if these changes will likely lead to a transition toward a more sustainable system and the manner in which a transition of this nature could be facilitated. The oral testimony offered during the focus groups has been assessed qualitatively using thematic analysis. The results suggest that there is a commonly held view that the automobility system is entering a stage of flux, which may lead to considerable changes in system configuration. However, the attainment of a sustainable transition for the system will likely be inhibited by a series of institutional, societal, and physical barriers, which may restrict system developments. 相似文献
64.
Patrick Lefebvre Craig I. Coleman Brahim K. Bookhart Si-Tien Wang Samir H. Mody Kevin N. Tran 《Journal of medical economics》2014,17(1):52-64
Background:Venous thromboembolism (VTE), comprised of deep vein thrombosis (DVT) and pulmonary embolism (PE), is commonly treated with a low-molecular-weight heparin such as enoxaparin plus a vitamin K antagonist (VKA) to prevent recurrence. Administration of enoxaparin?+?VKA is hampered by complexities of laboratory monitoring and frequent dose adjustments. Rivaroxaban, an orally administered anticoagulant, has been compared with enoxaparin?+?VKA in the EINSTEIN trials. The objective was to evaluate the cost-effectiveness of rivaroxaban compared with enoxaparin?+?VKA as anticoagulation treatment for acute, symptomatic, objectively-confirmed DVT or PE.Methods:A Markov model was built to evaluate the costs, quality-adjusted life-years (QALYs), and incremental cost-effectiveness ratios associated with rivaroxaban compared to enoxaparin?+?VKA in adult patients treated for acute DVT or PE. All patients entered the model in the ‘on-treatment’ state upon commencement of oral rivaroxaban or enoxaparin?+?VKA for 3, 6, or 12 months. Transition probabilities were obtained from the EINSTEIN trials during treatment and published literature after treatment. A 3-month cycle length, US payer perspective ($2012), 5-year time horizon and a 3% annual discount rate were used.Results:Treatment with rivaroxaban cost $2,448 per-patient less and was associated with 0.0058 more QALYs compared with enoxaparin?+?VKA, making it a dominant economic strategy. Upon one-way sensitivity analysis, the model’s results were sensitive to the reduction in index VTE hospitalization length-of-stay associated with rivaroxaban compared with enoxaparin?+?VKA. At a willingness-to-pay threshold of $50,000/QALY, probabilistic sensitivity analysis showed rivaroxaban to be cost-effective compared with enoxaparin?+?VKA approximately 76% of the time.Limitations:The model did not account for the benefits associated with an oral and minimally invasive administration of rivaroxaban. ‘Real-world’ applicability is limited because data from the EINSTEIN trials were used in the model. Also, resource utilization and costs were based on the US healthcare system.Conclusion:Rivaroxaban is a cost-effective option for anticoagulation treatment of acute VTE patients. 相似文献
65.
This paper presents a classification of the different new Phillips curves existing in the literature as a set of choices based on three assumptions: the choice of the structure of price adjustments (Calvo or Taylor), the presence of backward indexation and the type of price contracts (fixed prices or predetermined prices). The paper suggests study of the dynamic properties of each specification, following different monetary shocks on the growth rate of the money stock. We develop the analytical form of the price dynamics, and we display graphics for the responses of prices, output and inflation. We show that the choice made for each of the three assumptions has a strong influence on the dynamic properties. Notably, the choice of the price structure, while often considered as unimportant, is indeed the most influential choice concerning the dynamic responses of output and inflation. 相似文献
66.
Hakim Ben Hammouda Stephen N. Karingi Nassim Oulmane Mustapha Sadni Jallab 《Oxford Development Studies》2013,41(2):187-208
This paper proposes an extensive data simulation exercise on the likely impact of non-agricultural market access liberalization. The paper analyses real options for tariff cut reduction, special and differential treatment and the treatment of unbound tariffs. This paper also gives indications concerning the likely economic impact of this trade round of industrial market access negotiations on African economies. It shows that an ambitious tariff cut reduction formula would provide greater access to developed country markets for African producers. However, this kind of formula has a major drawback for African countries in the sense that it could accelerate the de-industrialization of African countries and limit incentives to diversify their economies. 相似文献
67.
This study examined the emergence of corporate social responsibility (CSR) as a public issue over 25 years using a content
analysis of two national news- papers and seven regional, geographically-dispersed newspapers in the U.S. The present study
adopted a comprehensive definition encompassing all four CSR dimensions: economic, ethical, legal, and philanthropic. This
study examined newspaper editorials, letters to the editor, op-ed columns, news analyses, and guest columns for three aspects:
media attention, media prominence, and media valence. Results showed an increase in the number of opinion pieces covering
CSR issues over the 25-year period. The prominence of each of the four CSR dimensions varied over time. Each of the four CSR
dimensions had its moment of media prominence when it was more important than the other dimensions. The most prevalent valence
of the opinion pieces was negative; the volume of negative pieces increased over the 25 years, whereas the number of opinions
with positive, neutral, and mixed tones showed little change over time. The study concludes by tracing the implications of
the role of the news media for business ethics research. 相似文献
68.
Abstract Raising children takes both time and money. Scholars have sought convincing ways to capture the costs of children, but even when these estimates include indirect costs, such as mothers' foregone earnings, they fall short of the true time costs involved. This paper uses data from the 1997 Australian Bureau of Statistics (ABS) Time Use Survey to study how the allocation of time differs across households with varying numbers and ages of children and how households with children differ from those without children. It also examines the intra household division of time resources, showing how childcare, related unpaid work, and the total market and non-market workloads compare for a couple in the same household. It includes secondary activity in an analysis of total parental time commitments to give a more accurate picture of the time cost of children than is possible on the basis of analyzing “primary” activities alone. 相似文献
69.
70.
In this paper, we urge accounting educators to encourage imaginings and critical thinking in students. We reflect on the results of an assignment in which French accounting students were encouraged to assess the collapse of Enron. The submitted assignments attest to the originality and richness of non-conformist stories reported by some students. However, they also revealed strong instances of cognitive dissonance that we contend was fostered by the contradictions some students detected between the rhetoric and the reality of capitalism; and by the perpetuation of socially bereft capitalist values in accounting curricula. The assignment manifested student discontent with the current pervading economic system and its moral and ethical precepts. We identify the ways by which students responded to their cognitive dissonance. We propose some pedagogic and curriculum initiatives to improve accounting education. These initiatives call for stronger efforts to connect accounting topics with the social world in order to demystify the alleged naturalness of the capitalist system; for students to be encouraged to imagine other cultures and discourses; and for students to challenge any prevailing ideology. 相似文献