全文获取类型
收费全文 | 90篇 |
免费 | 4篇 |
专业分类
管理学 | 14篇 |
人口学 | 13篇 |
理论方法论 | 17篇 |
社会学 | 42篇 |
统计学 | 8篇 |
出版年
2023年 | 1篇 |
2021年 | 1篇 |
2020年 | 3篇 |
2019年 | 3篇 |
2018年 | 1篇 |
2017年 | 3篇 |
2016年 | 1篇 |
2015年 | 4篇 |
2014年 | 4篇 |
2013年 | 12篇 |
2012年 | 2篇 |
2011年 | 2篇 |
2010年 | 5篇 |
2009年 | 3篇 |
2008年 | 2篇 |
2007年 | 3篇 |
2006年 | 2篇 |
2004年 | 3篇 |
2003年 | 1篇 |
2002年 | 2篇 |
2001年 | 2篇 |
2000年 | 9篇 |
1999年 | 4篇 |
1998年 | 3篇 |
1996年 | 1篇 |
1995年 | 1篇 |
1992年 | 1篇 |
1990年 | 2篇 |
1988年 | 2篇 |
1986年 | 2篇 |
1984年 | 1篇 |
1981年 | 1篇 |
1979年 | 1篇 |
1978年 | 2篇 |
1977年 | 1篇 |
1976年 | 1篇 |
1975年 | 1篇 |
1974年 | 1篇 |
排序方式: 共有94条查询结果,搜索用时 125 毫秒
61.
This paper develops a theory of vertical and horizontal product differentiation to explain observed price-cost margin differentials for goods that differ in quality. The difference in price-cost margins between the high- and low-quality goods is shown to depend positively on consumers' average valuation for incremental increases in quality and positively on the distance to each competitor's closest rival. These predictions are largely supported using an extensive station-level data set of premium and regular unleaded gasoline prices from the Los Angeles Basin area from 1992–1995. 相似文献
62.
Fiona Cram Kendall Stevenson Stacie Geller E. Jane MacDonald Beverley Lawton 《Kōtuitui : New Zealand Journal of Social Sciences Online》2019,14(1):52-67
Severe acute maternal morbidity (SMM) is a near-death experience during pregnancy, childbirth or termination of a pregnancy. Nine women recruited from hospital intensive care or high dependency units following the birth of their baby participated in two qualitative interviews about their SMM experience. The interpretative phenomenological analysis led to the identification of three superordinate themes related to participants: moving from a state of normal pregnancy to being severely unwell, being in critical care and returning to normal. Participants’ transition to a SMM event occurred quickly and was frightening, with participants expressing concerns about their husbands/partners’ trauma. Participants’ time in hospital was particularly hard for those separated from their baby, with this eased by staff kindness and family support. After discharge participants continued to seek explanations for their SMM. Implications include more formal support for mothering when women are in maternal critical care, and support for husbands/partners following a SMM event. 相似文献
63.
Kristof Mikes‐Liu Margaret Goldfinch Chloe MacDonald Ben Ong 《Australian and New Zealand Journal of Family Therapy》2016,37(3):256-272
The dialogical notion of vertical polyphony, referring to multiple internal voices, is explored in relation to clinicians’ professional and personal selves. We describe an experiential training exercise developed to enhance clinicians’ awareness and understanding of their inner dialogue, and create space to practice what Schön terms ‘reflecting‐in‐action’ and ‘knowing‐in‐action.’ The exercise involves stages of personal reflection, discussion in groups of two or three, and shared learning by the group. A number of variations of the exercise are described. The invited commentaries following the article provide a sense of participants’ reactions to the exercises. Readers are invited to adapt the exercise to suit their own setting and to enhance reflective practice. 相似文献
64.
The present research examined children's awareness of the specific same-sex peers who like or dislike them. Awareness was evaluated in relation to children's peer sociometric status. All children in grades one through six provided same-sex peer sociometric nominations and same-sex peer sociometric ratings to determine their sociometric status. In addition, each child indicated the nominations and ratings they believed they received from same-sex peers. Children's sociometric status was associated with their awareness of liking and disliking from peers. Rejected status children were the least accurate in their judgments of who like them and popular status children were the least accurate in their judgments of who disliked them. These findings support and extend prior research documenting that rejected status children a) demonstrate a lack of awareness of their social competence, yet b) report more loneliness than children in other status groups. 相似文献
65.
This paper illustrates evolutionary approaches to population issues. Life history theory is a general theoretical framework
that incorporates environmental influences, contextual influences, and heritable variation. In general, physically or psychologically
stressful environments delay maturation and the onset of reproductive competence. Perceptions of scarcity also result in lower
fertility by delaying reproduction or having fewer children—a phenomenon viewed as an adaptation to ancestral environments.
The desire for upward social mobility is viewed as an evolved motive disposition affecting fertility decisions. The opportunity
for upward social mobility typically results in delaying reproduction and lowering fertility in the interest of increasing
investment in children. Variation in life history strategies is also influenced by genetic variation, but genetic variation
interacts with cultural shifts in the social control of sexual behavior. Finally, i discuss the effects of between-group competition
for resources on population issues. Immigration policy and group differences in fertility influence political power within
and between societies, often with explosive results. Demographic expansion has often been an instrument of ethnic competition
and is an important source of conflict in the contemporary world. 相似文献
66.
This paper extends the one-way heteroskedasticity score test of Holly and Gardiol (2000, In: Krishnakumar, J, Ronchetti, E (Eds.), Panel Data Econometrics: Future Directions, North-Holland, Amsterdam, pp. 199–211) to two conditional Lagrange Multiplier (LM) tests of heteroskedasticity under contiguous alternatives within the two-way error components model framework. In each case, the derivation of Rao's efficient score statistics for testing heteroskedasticity is first obtained. Then, based on a specific set of assumptions, the asymptotic distribution of the score under contiguous alternatives is established. Finally, the expression for the score test statistic in the presence of heteroskedasticity and related asymptotic local powers of these score test statistics are derived and discussed. 相似文献
67.
Population and Environment - 相似文献
68.
69.
70.
The effect of union decertification elections on the valuation of corporations is examined using a standard event study methodology.
Cumulative abnormal daily common stock returns for 203 NYSE and AMEX listed firms are estimated for the day on which a petition
for a decertification election is filed and for the day on which the National Labor Relations Board (NLRB) certifies the decertification
election outcome. The results are consistent with the hypothesis that successful union decertifications increase firm valuation
and unsuccessful ones reduce firm valuation. The primary carrier of valuation information is the date the NLRB confirms the
decertification election results. The petition file date yields little, if any, information about the firm’s capitalization.
The authors thank the directors of the regional NLRB offices and the editor of this journal for their assistance. The usual
caveats concerning errors and omissions apply. Correspondence should be directed to William L. Huth. 相似文献