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   129篇
  免费   10篇
财政金融   14篇
工业经济   6篇
计划管理   26篇
经济学   40篇
运输经济   3篇
旅游经济   3篇
贸易经济   34篇
农业经济   5篇
经济概况   8篇
  2024年   1篇
  2023年   2篇
  2022年   1篇
  2021年   5篇
  2020年   12篇
  2019年   8篇
  2018年   8篇
  2017年   13篇
  2016年   10篇
  2015年   3篇
  2014年   5篇
  2013年   21篇
  2012年   5篇
  2011年   11篇
  2010年   8篇
  2009年   4篇
  2008年   6篇
  2007年   3篇
  2006年   1篇
  2005年   2篇
  2004年   2篇
  2003年   1篇
  2002年   2篇
  2001年   3篇
  2000年   1篇
  1988年   1篇
排序方式: 共有139条查询结果,搜索用时 23 毫秒
131.
A CGE model of world trade is used to examine whether many developing countries can simultaneously expand manufactures exports along East Asian lines without suffering serious terms of trade decline and consequent welfare loss. Experiments are performed in which manufactures exports are expanded for each developing region in turn and for all regions simultaneously. When driven by productivity gains in manufactures exports production, welfare gains are found to be significant and stable, even enhanced by parallel advances in other developing regions: i.e. export growth is mutually reinforcing as a result of extensive South-South manufactures flow, a pattern that is intensifying. [F 17]  相似文献   
132.
This paper accounts for the value of children and future generations in the evaluation of health policies. This is achieved through the incorporation of altruism and fertility in a “value of life” type of framework. We are able to express adults' willingness to pay for changes in child mortality and also to incorporate the welfare of future generations in the evaluation of current policies. Our model clarifies a series of puzzles from the literature on the “value of life” and on intergenerational welfare comparisons. We show that, by incorporating altruism and fertility into the analysis of the recent U.S. experience, the estimated welfare gain of a young adult from reductions in mortality easily doubles.  相似文献   
133.
134.
In panel studies, where a categorical response is measured attwo points in time, we can examine two kind of hypotheses regardingthe nature of change. The first is related with change at theindividual level (gross change) through the modelling of joint distributionof responses. The second is related with aggregate change (netchange) through the modelling of marginal distributions of responses.This paper describes a general approach to the analysis of two-wavepanel data based on Lang and Agresti's work (1994) that simultaneouslypermits the modelling of marginal and joint distributions of responses.This approach is illustrated with data from Heatherton et al.(1997) about change in dieting behaviour. These data were originallyanalyzed using the 2 statistic to test independenceof responses. This paper shows how it is possible toobtain a better understanding of these data using the proposedmethodological approach.  相似文献   
135.
We build big data retail trade indicators for Spain using high-dimensional card transaction data from one of the country’s biggest banks. The resulting indicators replicate the dynamics of the Spanish retail trade indices (RTI), regional RTIs (Spain’s autonomous regions), and RTI by retailer type (distribution classes) released by the Spanish National Statistics Institute. The new indicators not only have a higher frequency (daily data) and higher geographical and sectorial breakdown but are also shown to improve nowcasting and forecasting power for the official RTI, making them key variables to monitor consumption.  相似文献   
136.
This paper addresses the creation of new products in the US pharmaceutical sector, during the second half of the 20th century. We indicate that the continuous increases in population, and thus in the market size of this sector, play a fundamental role in explaining the large creation of new drugs during that period. We also argue that population and market size can be endogenously determined through the impact of drugs over the mortality rate. Hence, these two effects reinforce each other, producing decrements in the mortality rate and increments in the stock of drugs over time. We obtained the set of new molecular entities approved by the FDA during the second half of the 20th century and we decomposed the data in a panel of 15 therapeutic categories over time. Using this data, we tested our hypotheses using different econometric methods. The results support the hypothesis and are consistent across methods.
Rodrigo A. CerdaEmail:
  相似文献   
137.
The present paper introduces a novel method for the construction of Socioeconomic Status (SES) indices that are specific to a target variable of interest. It is based on the Sufficient Dimension Reduction (SDR) paradigm and uses a factorized model-based approach to simultaneously deal with predictor variables of mixed nature (i.e. quantitative, binary, and ordinal), which are usual in microeconomic data. These SES indices also identify relevant predictor variables using a two-step regularized matrix factorization approach. Using data from household surveys for Argentina (Encuesta Permanente de Hogares-EPH), the proposed method is compared with other existing dimension reduction algorithms such as standard Principal Component Analysis (PCA) and its version for mixed variables, regression on the full set of variables and Least Absolute Shrinkage and Selection Operator regression (LASSO).  相似文献   
138.
The growing political polarization and the increasing use of social media have been linked to straining social ties worldwide. The 2016 presidential elections in the United States reflected this trend with reports of fear and anxiety among voters. We examine how election results can be linked to episodes of anxiety through the use of alcohol as self-medication. We analyze a daily dataset of household purchases of alcohol in the weeks following presidential elections. We find that, within 30 days from Election Day, a 10 percentage point increase in support for the losing candidate increases alcohol expenditure by 1.1%. The effect is driven by counties with a higher share of supporters of the losing candidate and is robust to controlling more flexibly for omitted variables related to alcohol consumption. The increase in alcohol consumption is present in the 2016 elections and absent in the previous three presidential elections.  相似文献   
139.
Management Review Quarterly - The empirical evidence of family business phenomenon in terms of employment outcomes is contradictory highlighting the micro–macro gap in the existing research....  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