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   83篇
  免费   2篇
财政金融   17篇
工业经济   3篇
计划管理   10篇
经济学   29篇
运输经济   1篇
旅游经济   2篇
贸易经济   21篇
经济概况   2篇
  2021年   2篇
  2020年   5篇
  2019年   4篇
  2018年   8篇
  2017年   3篇
  2016年   2篇
  2015年   2篇
  2014年   6篇
  2013年   21篇
  2012年   3篇
  2011年   8篇
  2010年   3篇
  2009年   3篇
  2007年   3篇
  2006年   4篇
  2005年   2篇
  2003年   1篇
  1995年   2篇
  1992年   1篇
  1990年   1篇
  1939年   1篇
排序方式: 共有85条查询结果,搜索用时 533 毫秒
31.
32.
Review of Industrial Organization - A prominent argument as to why countries sign “deep” preferential trade agreements (PTAs) is to foster global value chains (GVCs) operations. By...  相似文献   
33.
This paper investigates the two‐way relationship between deep integration and production networks trade. We capture deep integration with a set of indices constructed in terms of policy areas covered in preferential trade agreements. We estimate an augmented gravity equation to investigate the impact of deep integration on production networks trade. The results show that on average, signing deeper agreements increases production networks trade between member countries by almost 12 percentage points. In addition, the impact of deep integration is higher for trade in automobile parts and information and technology products compared with textile products. To analyse whether higher levels of network trade increase the likelihood of signing deeper agreements, we follow the literature on the determinants of preferential trade agreements. The estimation results show that, after taking into account other PTA determinants, a ten percentage increase in the share of production network trade over total trade increases the depth of an agreement by approximately 6 percentage points. In addition, the probability of signing deeper agreements is higher for country pairs involved in North–South production sharing and for countries belonging to the Asia region.  相似文献   
34.
Since the Lei dos Portos (“Ports Law”) of 1993, Brazilian ports have operated under the landlord regime, which places the management of ports in the hands of a national authority and provides for the rendering of private services inside the facilities. The model has enabled increases in capacity as well as gains in efficiency, both of which are currently limited due to infrastructure constraints. Expanding infrastructure by building additional ports was an option for the sector to meet the needs of a growing economy. In this context, this article discusses the adoption of public–private partnerships and project finance structure to propose a formula to compute the value of a new port.  相似文献   
35.
Background Regularly available data has been shown to be inadequate for developing, implementing, and evaluating injury prevention and control programs in Nicaragua. A specific prevention-oriented local injury surveillance system has therefore been set up in the city of León. Objectives The aim of this paper is to describe the epidemiology of fatal and non-fatal injuries over a one-year period in a well-defined local population in Nicaragua, as emerging from the perspective of emergency room and inpatient treatments over a one-year period. Methods A hospital-based injury surveillance system was established to collect data for different levels of severity. All treated unintentional and intentional injuries were registered, including information on the external causes according to the ICD-9. Results Of all emergency room visits, 15.9% (9,970) were injuries. For every death due to injuries, there were 31 hospital admissions and 253 emergency room visits. Home and street/roads were the main arenas for the accidents. The estimated underreporting rate was about 6%, and in 20.3% of the cases, no E-code was assigned. The overall incidence and mortality rates were 56.2 per 1,000 and 20 per 100,000 inhabitants, respectively. However, comparison with a parallel household survey showed that the reporting rate of the surveillance system is only about 9%. The overall ratio of male to female injury rates was 2.1 to 1. The main causes of non-fatal injuries were falls, whereas the main cause of death was traffic accidents. Conclusions Hospital discharge and emergency room data systems are effective and feasible means for collecting the data needed to prevent injuries. However, in a country like Nicaragua with limited access to hospital health services, it is necessary to supplement such a system with additional sources of information in order to gain a more comprehensive picture of injury occurrence.  相似文献   
36.
Abstract To what extent do reductions in corporate income tax (CIT) rates attract foreign tax bases? What are the revenue implications of a unilateral tax reduction when tax bases are internationally mobile? These questions are explored using annual data from 17 OECD countries spanning the period 1982 to 2005. Controlling for fixed country effects, year effects, and country time trends, and subjecting our results to an extensive robustness analysis, we find (i) a country’s aggregate reported corporate profits are negatively and significantly affected by CIT rate reductions in neighbouring countries; (ii) a unilateral reduction in the domestic CIT rate results in lower domestic CIT revenues.  相似文献   
37.
This article proposes an empirical procedure to evaluate central banks’ monetary management in a presence of exogenous changes in the money supply. Monetary shocks deviate the market interest rate from the target, and the monetary authority decides its optimal intervention in the money market, bearing in mind the benefits and costs of re-establishing its target interest rate. According to monetary management theory, typically a central bank will allow for variation in the interest rate within a range around the target interest rate, thereby intervening in the money market when the interest rate trends toward a point outside that range. In this context, we develop an empirical strategy to analyse central bank’s reactions to exogenous money changes by making a statistical comparison of the actual and the estimated intraday shift in the money supply. We also employ our method to test the reactions of the Brazilian Central Bank to liquidity shifts caused by changes in the Treasury Single Account (TSA) balance. Using different metrics of analysis, the applications of our procedure confirms the predictions of the optimal monetary management theory.  相似文献   
38.
This note reviews some results on aggregating discrete‐time long memory processes, providing a formula for the spectrum of the aggregates that considers the aliasing effect.  相似文献   
39.
Objective:

To evaluate the cost-effectiveness of vildagliptin plus metformin vs generic sulphonylurea plus metformin in patients with type 2 diabetes mellitus, not controlled with metformin, from a Portuguese healthcare system perspective.

Methods:

A cost-effectiveness model was constructed using risk equations from the UK Prospective Diabetes Study Outcomes Model with a 10,000-patient cohort and a lifetime horizon. The model predicted microvascular and macrovascular complications and mortality in yearly cycles. Patients entered the model as metformin monotherapy failures and switched to alternative treatments (metformin plus basal-bolus insulin and subsequently metformin plus intensive insulin) when glycated hemoglobin A1c >7.5% was reached. Baseline patient characteristics and clinical variables were derived from a Portuguese epidemiological study. Cost estimates were based on direct medical costs only. One-way and probabilistic sensitivity analyses were conducted to test the robustness of the model.

Results:

There were fewer non-fatal diabetes-related adverse events (AEs) in patients treated with metformin plus vildagliptin compared with patients treated with metformin plus sulphonylurea (6752 vs 6815). Addition of vildagliptin compared with sulphonylurea led to increased drug acquisition costs but reduced costs of AEs, managing morbidities, and monitoring patients. Treatment with metformin plus vildagliptin yielded a mean per-patient gain of 0.1279 quality-adjusted life years (QALYs) and a mean per-patient increase in total cost of €1161, giving an incremental cost-effectiveness ratio (ICER) of €9072 per QALY. Univariate analyses showed that ICER values were robust and ranged from €4195 to €16,052 per QALY when different parameters were varied.

Limitations:

The model excluded several diabetes-related morbidities, such as peripheral neuropathy and ulceration, and did not model second events. Patients were presumed to enter the model with no diabetes-related complications.

Conclusion:

Treatment with metformin plus vildagliptin compared with metformin plus sulphonylurea is expected to result in a lower incidence of diabetes-related AEs and to be a cost-effective treatment strategy.  相似文献   

40.
This study presents a taxonomic classification of manufactured products exporters based on strategic orientation which is the result of an analysis of a sample of 414 Brazilian exporters of manufactured goods. The analyses used Cluster analysis, MANOVA, ANOVA, post-hoc tests and crosstabs. The study identified four patterns of strategic orientation of Brazilian exporters and provided indications of correlations with firm and manager characteristics. The article includes a discussion of implications for export performance. Findings suggest that joint attention to planning and differentiation seems to pay off, but planning alone is insufficient to ensure winning results. The study has contributed to the literature by identifying clearly discernible patterns of strategic orientation of Brazilian exporters and their association with firm and manager characteristics. The study also discusses how export performance correlates with strategic orientation.  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