首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   3799篇
  免费   96篇
财政金融   670篇
工业经济   212篇
计划管理   613篇
经济学   812篇
综合类   43篇
运输经济   14篇
旅游经济   29篇
贸易经济   590篇
农业经济   180篇
经济概况   731篇
邮电经济   1篇
  2023年   21篇
  2021年   24篇
  2020年   46篇
  2019年   56篇
  2018年   132篇
  2017年   138篇
  2016年   117篇
  2015年   65篇
  2014年   114篇
  2013年   395篇
  2012年   137篇
  2011年   131篇
  2010年   141篇
  2009年   158篇
  2008年   136篇
  2007年   139篇
  2006年   113篇
  2005年   65篇
  2004年   89篇
  2003年   80篇
  2002年   68篇
  2001年   47篇
  2000年   67篇
  1999年   48篇
  1998年   65篇
  1997年   31篇
  1996年   59篇
  1995年   40篇
  1994年   50篇
  1993年   47篇
  1992年   54篇
  1991年   52篇
  1990年   57篇
  1989年   28篇
  1988年   31篇
  1987年   41篇
  1986年   39篇
  1985年   60篇
  1984年   56篇
  1983年   35篇
  1982年   43篇
  1981年   45篇
  1980年   41篇
  1979年   43篇
  1978年   48篇
  1977年   47篇
  1976年   42篇
  1975年   30篇
  1974年   22篇
  1969年   25篇
排序方式: 共有3895条查询结果,搜索用时 15 毫秒
101.
This paper implements the technique suggested by Den Haan (J Monet Econ 46:3–30, 2000) to investigate contemporaneous as well as lead and lag correlations among economic data for a range of forecast horizons. The lead/lag approach provides a richer picture of the economic dynamics generating the data and allows one to investigate which variables lead or lag others, and whether the lead or lag pattern is short term or long term in nature. This technique is applied to monthly sectoral level employment data for the USA and shows that among the ten industrial sectors followed by the US Bureau of Labor Statistics, six tend to lead the other four. These six have high correlations indicating that the structural shocks generating the data movements are mostly in common. Among the four lagging industries, some lag by longer intervals than others and some have low correlations with the leading industries. These low correlations may indicate that these industries are partially influenced by structural shocks beyond those generating the six leading industries, but they also may indicate that lagging sectors feature a different transmission mechanism of shocks.  相似文献   
102.
Is Meta-Analysis a Noah's Ark for Non-Market Valuation?   总被引:1,自引:0,他引:1  
This paper describes meta-analytical methods as they have been appliedto non-market valuation research. These studies have been used to reviewand synthesize literature and, more recently, in benefit transfer. Thissecond use imposes a higher standard on the consistency in economicconcepts being summarized and in the resources included in ameta-analysis. To meet this need, the paper proposes and illustrates astructural framework using a generalized method of moments estimator toestimate the parameters of a preference function with the benefitsestimates usually encountered in meta-analytic summaries.  相似文献   
103.
V. K. Sharma 《Metrika》2013,76(3):339-346
Considering the presence of first order residual effects of treatments, a family of variance balanced changeover designs has been presented and universal optimality of the designs is established. The designs use only v experimental units and (v ? 1)/2 periods for v = 4t + 3 prime or prime power number of treatments; t being a positive integer. A special feature of the proposed designs is that ‘in the order of presentation of treatments to experimental units over periods, each treatment is once immediately preceded by only half of the other treatments and is immediately followed once by the remaining half of the treatments’. This characteristic results in reducing the size of the variance balanced designs considerably.  相似文献   
104.
We examine the content of continuous improvement strategies and identify infrastructure decision areas that are important for continuous improvement initiatives. We present a framework of infrastructure based on the idea that continuous improvement can serve as a dynamic capability when it includes a comprehensive organizational context. Further, we study continuous improvement initiatives in five companies to investigate the practices used by them in each of the decision areas of our framework. This research adds to the conceptual understanding of continuous improvement and results in grounded propositions about critical areas of infrastructure for continuous improvement.  相似文献   
105.
Aims: To develop a budget impact model (BIM) for estimating the financial impact of formulary adoption and uptake of calcipotriene and betamethasone dipropionate (C/BD) foam (0.005%/0.064%) on the costs of biologics for treating moderate-to-severe psoriasis vulgaris in a hypothetical US healthcare plan with 1 million members.

Methods: This BIM incorporated epidemiologic data, market uptake assumptions, and drug utilization costs, simulating the treatment mix for patients who are candidates for biologics before (Scenario #1) and after (Scenario #2) the introduction of C/BD foam. Predicted outcomes were expressed in terms of the annual cost of treatment (COT) and the COT per member per month (PMPM).

Results: At year 1, C/BD foam had the lowest per-patient cost ($9,913) necessary to achieve a Psoriasis Area and Severity Index (PASI)-75 response compared with etanercept ($73,773), adalimumab ($92,871), infliximab ($34,048), ustekinumab ($83,975), secukinumab ($113,858), apremilast ($47,960), and ixekizumab ($62,707). Following addition of C/BD foam to the formulary, the annual COT for moderate-to-severe psoriasis would decrease by $36,112,572 (17.91%, from $201,621,219 to $165,508,647). The COT PMPM is expected to decrease by $3.00 (17.86%, from $16.80 to $13.80).

Limitations: Drug costs were based on Medi-Span reference pricing (January 21, 2016); differences in treatment costs for drug administration, laboratory monitoring, or adverse events were not accounted for. Potentially confounding were the definition of “moderate-to-severe” and the heterogeneous efficacy data. The per-patient cost for PASI-75 response at year 1 was estimated from short-term efficacy data for C/BD foam and apremilast only.

Conclusions: The introduction of C/BD foam is expected to decrease the annual COT for moderate-to-severe psoriasis treatable with biologics by $36,112,572 for a hypothetical US healthcare plan with 1 million plan members, and to lower the COT PMPM by $3.00.  相似文献   

106.
107.
This paper finds that participants in the European Central Bank’s Survey of Professional Forecasters have submitted forecasts that are consistent with a (mostly forward-looking) empirical version of the New Keynesian Phillips Curve for the euro area. The estimation technique takes advantage of the panel nature of the Survey of Professional Forecasters’ dataset to exploit both its time series and cross-section dimensions, and to control for unobservable individual heterogeneity across forecasters. The estimation results suggest that euro-area inflation forecasts have reacted less to unemployment forecasts after the start of the financial crisis but another cost measure (energy inflation) remains significant. This finding is consistent with a flatter Phillips Curve in the euro area after 2007. However, the reasons suggested by the International Monetary Fund for this finding, namely a better anchoring of inflation expectations and increases in structural unemployment do not seem to find support in the survey data. Instead, the expectations for compensation per employee submitted by professional forecasters are consistent with the existence of downward real-wage rigidities in euro-area labour markets.  相似文献   
108.
Abstract:

Capitalism has always and will always depend on a compliant workforce. Maintaining the delicate balance between a worker who is just “not-unhappy” enough or desperate enough to continue working while also cutting costs to the bone presents a continuous challenge for business interests. This pursuit to squeeze more productivity out of workers while also managing worker discontent in the cheapest way possible has spawned innovations in labor management which reflect the institutional milieu of the respective time. This research focuses on those labor management techniques particular to neoliberalism and the ways in which cultural movements and trends of the neoliberal period are mined and deployed as yet another useful resource in the disciplining of workers. Corporate mindfulness is the favorite labor management technique of the neoliberal period. The formalized packaging of corporate mindfulness began in the late 1970s but was built on a long tradition of attempts to hack the minds and mindsets of workers. Corporate mindfulness reinforces neoliberalism through the corporate individual, the transformation of the self of the corporate individual, and the creation of the corporation as a community and means of social connection for the corporate individual.  相似文献   
109.
Several authors in the literature have attempted the quantification of the concept of stochastic dependence for bivariate distribution. Two weighted rank tests for testing independence against a weighted contamination alternative is proposed and their distributional properties are studied. We also derived a locally most powerful rank test for the alternative setting. The rank tests proposed are shown to be asymptotic locally most powerful for specific distributions.  相似文献   
110.
We consider rules that choose a location on a graph (e.g. a road network) based on agents' single-peaked preferences. First, we characterize the class of strategy-proof, onto rules when the graph is a tree. Such a rule is based on a collection of generalized median voter rules (Moulin, 1980) satisfying a consistency condition. Second, we characterize such rules for graphs containing cycles. We show that while such a rule is not necessarily dictatorial, the existence of a cycle grants some agent an amount of decisive power, unlike the case of trees. Rules for this case can be described in terms of a subclass of such rules for trees. Journal of Economic Literature Classification Numbers: C72, D78.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号