排序方式: 共有29条查询结果,搜索用时 0 毫秒
1.
2.
Daniel A. Ackerberg Kevin Caves Garth Frazer 《Econometrica : journal of the Econometric Society》2015,83(6):2411-2451
This paper examines some of the recent literature on the estimation of production functions. We focus on techniques suggested in two recent papers, Olley and Pakes (1996) and Levinsohn and Petrin (2003). While there are some solid and intuitive identification ideas in these papers, we argue that the techniques can suffer from functional dependence problems. We suggest an alternative approach that is based on the ideas in these papers, but does not suffer from the functional dependence problems and produces consistent estimates under alternative data generating processes for which the original procedures do not. 相似文献
3.
Kevin YX Wang Garth Tarr Jean YH Yang Samuel Mueller 《Australian & New Zealand Journal of Statistics》2019,61(4):445-465
We present APproximated Exhaustive Search (APES), which enables fast and approximated exhaustive variable selection in Generalised Linear Models (GLMs). While exhaustive variable selection remains as the gold standard in many model selection contexts, traditional exhaustive variable selection suffers from computational feasibility issues. More precisely, there is often a high cost associated with computing maximum likelihood estimates (MLE) for all subsets of GLMs. Efficient algorithms for exhaustive searches exist for linear models, most notably the leaps‐and‐bound algorithm and, more recently, the mixed integer optimisation (MIO) algorithm. The APES method learns from observational weights in a generalised linear regression super‐model and reformulates the GLM problem as a linear regression problem. In this way, APES can approximate a true exhaustive search in the original GLM space. Where exhaustive variable selection is not computationally feasible, we propose a best‐subset search, which also closely approximates a true exhaustive search. APES is made available in both as a standalone R package as well as part of the already existing mplot package. 相似文献
4.
Garth Stahl 《Journal of youth studies》2017,20(3):283-300
This paper considers how the practice of ‘Othering’ is used by white working-class boys in Boremund, South London to mark identity boundaries and reaffirm their habitus. Through unearthing themes of difference within the young men’s accounts, the work identifies various ways of ‘doing masculinity’ in two social groups, ‘Boremund Boys’ and ‘emos’, who contrasted greatly in style but who were of the same race, class, and ethnicity. Focusing on the identity negotiations of a small cohort, aged 14–16, the data indicate how a normative white male identity specific to this locale is policed and how ‘Othering’ is employed as a strategy. Using Bourdieu’s tools alongside the hermeneutic of heteronormativity, the research explores how emos, through inverting a traditional working-class masculinity, brought the habitus of Boremund Boys into disjuncture. Within the field of masculinity, the habitus of Boremund Boys, through a process of reorientation, reconciles competing and contrasting conceptions of what it is to be a white working-class male in South London. 相似文献
5.
6.
The Accuracy of Respondent-Coded Occupation 总被引:1,自引:0,他引:1
This study reports results from a methodological experimentconducted in a national survey to test the accuracy of respondent-codedoccupation. For most uses, we conclude that such measures aresufficiently precise. There are, however, some systematic sourcesof error which the investigator should be aware of. 相似文献
7.
Garth Pittman 《The Career development quarterly》2000,48(3):226-236
Thirty career counseling interviews were recorded and inductively analyzed using a discourse analytic method. Findings indicate that clients in this setting present various dilemmatic themes of career in their talk. Three types of dilemmas were pervasive: uncertainty versus certainty, interests versus practical, and focus versus options. The findings suggest that career theorists and practitioners might find it useful to address the dilemmatic processes evident in “career talk.” 相似文献
8.
9.
How school teachers act to challenge racism in schools is a vital concern in an immigrant society like Australia. A 10% response from a self-administered online survey of government (public) primary and secondary school teachers across Sydney, Australia’s largest EthniCity, examines attitudes of classroom teachers towards cultural diversity, goals of multicultural education, and strategies to implement anti-racist strategies. Principal components analysis (PCA) of attitudes tease out the varied influence of opinion on multicultural education, diversity, and anti-racism. Classroom teachers are overwhelmingly supportive of cultural diversity, multicultural education and strategies to combat racism and discrimination, and these views hardly vary across the different geographic zones of the city, unlike attitudes within the general community. However, teacher knowledge about the implementation of multicultural policy does vary, and is positively associated with the extent of population diversity and socio-economic status (SES) of the communities surrounding the schools. 相似文献
10.
Sarah Johnson Jianghong Li Garth Kendall Lyndall Strazdins Peter Jacoby 《Journal of marriage and the family》2013,75(1):56-74
This study examined the association between typical parental work hours (including nonemployed parents) and children's behavior in two‐parent heterosexual families. Child behavior was measured by the Child Behavior Checklist (CBCL) at ages 5, 8, and 10 in the Western Australian Pregnancy Cohort (Raine) Study (N = 4,201 child‐year observations). Compared to those whose fathers worked fewer hours per week, children whose fathers worked 55 hours or more per week had significantly higher levels of externalizing behavior. This association was not explained by father–child time during the week, poorer family functioning, or overreactive parenting practice. Further, when stratifying the analysis by child gender, this association appeared to exist only in boys. Mothers' work hours were unrelated to children's behavioral problems. The role of parent and child gender in the relationships between parental work hours and children's behavioral problems, together with mediating factors, warrants further investigation. 相似文献