全文获取类型
收费全文 | 90篇 |
免费 | 6篇 |
专业分类
管理学 | 13篇 |
人口学 | 10篇 |
理论方法论 | 11篇 |
综合类 | 2篇 |
社会学 | 42篇 |
统计学 | 18篇 |
出版年
2023年 | 1篇 |
2022年 | 1篇 |
2021年 | 1篇 |
2020年 | 3篇 |
2019年 | 7篇 |
2018年 | 2篇 |
2017年 | 7篇 |
2016年 | 2篇 |
2015年 | 6篇 |
2014年 | 4篇 |
2013年 | 10篇 |
2012年 | 3篇 |
2011年 | 6篇 |
2010年 | 2篇 |
2009年 | 2篇 |
2008年 | 1篇 |
2007年 | 2篇 |
2006年 | 3篇 |
2005年 | 1篇 |
2004年 | 1篇 |
2003年 | 1篇 |
2002年 | 3篇 |
2001年 | 4篇 |
2000年 | 5篇 |
1999年 | 2篇 |
1998年 | 2篇 |
1996年 | 4篇 |
1993年 | 3篇 |
1991年 | 2篇 |
1988年 | 3篇 |
1987年 | 2篇 |
排序方式: 共有96条查询结果,搜索用时 390 毫秒
11.
12.
13.
14.
In this paper we study the cyclical behaviour of job and worker flows in The Netherlands. We find that job flows move counter‐cyclically while worker flows move acyclically. The persistence of newly created jobs is strongly pro‐cyclical while the persistence of destroyed jobs is strongly counter‐cyclical. We also examine the relative importance of aggregate and sectoral versus idiosyncratic shocks. We find both shocks to be negatively correlated and idiosyncratic shocks to be somewhat more important in explaining the time variation of job reallocation. Finally, we find that gross job flows account for about one‐third of the worker flows. The remainder reflect churning. 相似文献
15.
Janssen Marco A. van den Bergh Jeroen C. J. M. van Beukering Pieter J. H. Hoekstra Rutger 《Population and environment》2001,23(2):139-156
Research in the field of industrial metabolism traditionally has been focused on measuring and describing physical flows of economic systems. The metabolism of economic systems, however, changes over time, and measuring material flows is insufficient to understand this process. Understanding the relation between economic activities and material flows can help to unravel the socio-economic causes of these physical flows. Three issues are addressed: The importance of spatial scales and trade flows, empirical analysis of relations between economic development and material flows, and treatment of behaviour of and interactions between stakeholders. For each of these issues, methods for analysis are suggested. 相似文献
16.
Pieter A. Gautier Coen N. Teulings 《Journal of the European Economic Association》2006,4(6):1193-1225
This paper shows that we can normalize job and worker characteristics so that, without frictions, there exists a linear relationship between wages on the one hand and worker and job type indices on the other. However, for five European countries and the United States we find strong evidence for a systematic concave relationship. An assignment model with search frictions provides a parsimonious explanation for our findings. This model yields two restrictions on the coefficients that fit the data well. Allowing for unobserved heterogeneity and measurement error, we find that reservation wages are 25% lower than they would be in a frictionless world. Our results relate to the literature on industry wage differentials and on structural identification in hedonic models. (JEL: J210, J300, J600, J230) 相似文献
17.
18.
Adinda Dujardin Rudi De Raedt Jessica L. Borelli Caroline Braet Pieter Vos Mike Rinck Guy Bosmans 《Social Development》2019,28(2):364-382
In this study we investigated the effects of seeking versus avoiding proximity to mother on children’s emotional recovery from a stressor. Sixty children 9–12 years underwent a moodinduction procedure and were randomly assigned to seek proximity from or avoid an image of their mothers. The effect of this manipulation on children’s self‐reported negative emotions, skin conductance and heart rate variability (respiratory sinus arhythmia) was assessed. Higher levels of attachment anxiety were linked to more self‐reported sadness when children had to avoid mother, but no evidence for such an effect was found on a physiological level. For avoidant attachment, a similar pattern of results emerged, but both for self‐reported sadness and skin conductance. 相似文献
19.
Risk patterns in drug safety study using relative times by accelerated failure time models when proportional hazards assumption is questionable: an illustrative case study of cancer risk of patients on glucose‐lowering therapies
下载免费PDF全文
![点击此处可从《Pharmaceutical statistics》网站下载免费的PDF全文](/ch/ext_images/free.gif)
Edmond S.‐W. Ng Olaf H. Klungel Rolf H. H. Groenwold Tjeerd‐Pieter van Staa 《Pharmaceutical statistics》2015,14(5):382-394
Observational drug safety studies may be susceptible to confounding or protopathic bias. This bias may cause a spurious relationship between drug exposure and adverse side effect when none exists and may lead to unwarranted safety alerts. The spurious relationship may manifest itself through substantially different risk levels between exposure groups at the start of follow‐up when exposure is deemed too short to have any plausible biological effect of the drug. The restrictive proportional hazards assumption with its arbitrary choice of baseline hazard function renders the commonly used Cox proportional hazards model of limited use for revealing such potential bias. We demonstrate a fully parametric approach using accelerated failure time models with an illustrative safety study of glucose‐lowering therapies and show that its results are comparable against other methods that allow time‐varying exposure effects. Our approach includes a wide variety of models that are based on the flexible generalized gamma distribution and allows direct comparisons of estimated hazard functions following different exposure‐specific distributions of survival times. This approach lends itself to two alternative metrics, namely relative times and difference in times to event, allowing physicians more ways to communicate patient's prognosis without invoking the concept of risks, which some may find hard to grasp. In our illustrative case study, substantial differences in cancer risks at drug initiation followed by a gradual reduction towards null were found. This evidence is compatible with the presence of protopathic bias, in which undiagnosed symptoms of cancer lead to switches in diabetes medication. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献
20.
Luik Marc-André Emilsson Henrik Bevelander Pieter 《Journal of Population Research》2018,35(4):363-398
Journal of Population Research - Despite having a celebrated labor market integration policy, the immigrant–native employment gap in Sweden is one of the largest in the OECD. From a... 相似文献