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   9篇
  免费   3篇
计划管理   1篇
经济学   7篇
农业经济   4篇
  2023年   2篇
  2019年   1篇
  2017年   1篇
  2016年   2篇
  2015年   1篇
  2013年   3篇
  2011年   1篇
  2004年   1篇
排序方式: 共有12条查询结果,搜索用时 528 毫秒
1.
The implications of dietary changes for the environment and for human health are well documented, but the impacts on the agricultural sector are less well researched. We fill this gap by specifying scenarios in which European consumers' diets approximate the EAT-Lancet dietary recommendations to varying degrees and estimate the effects on agricultural production, incomes and emissions using an agro-economic modelling framework. The combination of different models allows for a detailed assessment of consequences for the agricultural sector from the global through European NUTS2 level to the farm level at different time scales. Shifting European consumption towards the EAT-Lancet recommendations leads to decreasing production of animal-based products, while production of fruits and vegetables increases sharply. The results indicate that the agricultural sector could benefit from a dietary shift, though the results are mixed at country, regional and farm levels. In particular, countries and regions that are highly specialised in animal farming are likely to lose income—at least in the short run—while regions with higher shares of vegetable and fruit farms can expect income gains. In Germany, pig and poultry farms may experience losses of up to 34% of their income, whereas farms with a high share of vegetables could gain more than 30% in income. Our results have implications for the policies to assist these extensive structural adjustments in response to widespread dietary changes.  相似文献   
2.
We introduce a special feature on the functioning of international agricultural markets. This feature is motivated by the increased interest in the functioning of commodity markets raised by unprecedented price turbulences since 2008, major structural changes through changed roles of emerging economies and related concerns regarding food security. We argue that the delineation of non‐functioning markets from markets that adequately adjusted to adverse framework conditions lacks theoretical foundation. We discuss the relevance of some results on institutions for agricultural markets in emerging and transition countries. A synthesis of the articles included in the special feature is provided by highlighting the selection of topics that span a topical range covering price formation on world and domestic markets, market power and trade policy modelling.  相似文献   
3.
Abstract

Aims: Electroencephalography (EEG) is an established method to evaluate and manage epilepsy; video EEG (VEEG) has significantly improved its diagnostic value. This study compared healthcare costs and diagnostic-related outcomes associated with outpatient vs inpatient VEEG among patients with epilepsy in the US.

Materials and methods: This study used Truven MarketScan Commercial and Medicare Supplemental claims databases. Patients with a VEEG between July 1, 2013 and December 31, 2016 were identified. Index event was the first VEEG claim, which was used to determine inpatient and outpatient cohorts. Continuous health plan enrollment 6?months pre- and 12?months post-index VEEG was required. Primary outcomes were costs during the index event and 12?months post index. A generalized linear model with gamma distribution and a log link was used to estimate adjusted index and post-index costs.

Results: Controlling for baseline differences, epilepsy-related cost of index VEEG was significantly lower for the outpatient ($4,098) vs the inpatient cohort ($13,821; p?<?0.0001). The cost differences observed at index were maintained in the post-index period. The 12-month post-index epilepsy-related costs were lower in the outpatient cohort ($6,114 vs $12,733, p?<?0.0001). Time from physician referral to index VEEG was significantly shorter in the outpatient cohort (30.6 vs 42.5?days). Patients in the inpatient cohort were also more likely to undergo an additional subsequent follow-up inpatient VEEG (p?<?0.0001).

Limitations: Administrative claims data have limitations, including lack of data on clinical presentation, disease severity, and comprehensive health plan information. Generalizability may be limited to a US insured population of patients who met study criteria.

Conclusions: Index VEEG was less costly in an outpatient vs inpatient cohort, and costs were lower during the follow-up period of 12?months, suggesting that outpatient VEEG can be provided to appropriate patients as a less costly option. There were fewer follow-up tests in the outpatient cohort with similar pre- and post-index diagnoses.  相似文献   
4.
This article quantifies the impact of incentives related to potential membership on institutional change as measured by the World Bank Governance Indicators. Based on a panel of 25 transition countries for the period from 1996 to 2008, we show that pre‐accession incentives provided by EU and NATO clearly matter for institutional development. In addition, path‐dependency determined by cultural norms may be overcome by economic liberalization, while foreign aid hampers institutional development.  相似文献   
5.
6.
The paper explores and analyses the catching up and falling behind processes in the European dairy sector over the period 2004–2011, using a stochastic metafrontier multiple output distance function for 24 EU Member States. The metafrontier estimates reveal considerable productivity differences in milk production across the EU at the regional (NUTS‐2) level. Milk yield per cow is the highest in the old Member States, especially in those regions located in the northwest of the EU, while the lowest productivity is observed in Eastern Europe. The same structure was found for both the TFP (Total Factor Productivity) levels and TFP growth. Moreover, the results for technical change suggest that farm sizes are not optimal in many regions in Central and Eastern Europe from a dynamic perspective. The comparative analysis suggests that in the new compared to the old Member States, fewer farms could benefit from the movement of the frontier. Moreover, there are no signs that poorly performing farms are catching up with the best performing farms in the EU regions/countries.  相似文献   
7.
The technological developments in infertility treatments have increased the success of childbearing among women with impaired fertility. Fifteen U.S. states have mandated insurance coverage of assisted reproductive technology, thus subsidizing and increasing the use of the technology. We exploit the variation of mandates across states and over time to examine the relationship between state mandates and the likelihood of divorce. Using individual‐level data from the 1984–2008 Survey of Income and Program Participation, we find that women are less likely to divorce after the state adopts infertility insurance mandates. We find the effect is larger among women in their 40s, covered by private insurance, with a college degree, and without children. (JEL J12, J13, J18, I13, I18)  相似文献   
8.
This article provides an introduction to the special feature on agriculture‐related issues in the emerging economies of Brazil, Russia, India and China (BRIC) contained in this issue of Journal of Agricultural Economics. The special feature is motivated by the increased interest which these countries have received since the turn of the millennium and by the significance of agriculture in their development. It considers economic and social development in BRICs, their integration in world agricultural trade as well as environmental concerns. This article presents key figures on economic, social and agricultural features in BRICs and compares them across countries. A synthesis of the articles included in the special feature is provided by highlighting the selection of topics likely to be crucial for further development across BRICs.  相似文献   
9.
Recent studies suggest that the allocation of expenditures in education is important for growth. The state of public education spending in many transition economies highlights the need for an assessment of the nature of education expenditures in these countries. This paper attempts to fill this gap in the literature by estimating the determinants of education expenditures in the Russian Federation. Results from panel data analysis show that revenue and the student‐population ratio have a positive impact on education expenditures while the effect of population density is negative. Three regional variables also show significant impact. The income and price elasticity of public education expenditures are estimated to be 0.57 and ?0.18, respectively, a result comparable to studies from other countries. The results presented here provide insight into how fiscal institutions and the structure of the political process in Russia may affect the degree of resource allocation in the educational sector during the transition process.  相似文献   
10.
This paper examines persistence in the Ukrainian stock market during the recent financial crisis. Using two different long memory approaches (R/S analysis and fractional integration) we show that this market is inefficient and the degree of persistence is not the same at different stages of the financial crisis. Therefore trading strategies might have to be modified. We also show that data smoothing is not advisable in the context of R/S analysis.  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