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331.
Stefan KÜHN Christian VIEGELAHN 《International labour review / International Labour Office》2019,158(1):137-167
This article uses ILO global supply chain job estimates to study the impact on domestic jobs of foreign barriers to trade in goods and services. Empirical analysis largely confirms predictions derived from a theoretical model calibrated to WIOD data for 2000 and 2011. Barriers to trade in manufacturing and services are both found to have a cross‐border impact on jobs in their own sector and spill‐over effects in other sectors, the latter becoming stronger over time. This article shows the labour market consequences of the increased interconnectedness of countries and sectors through global supply chains, which suggests that trade policy can have significant external effects on foreign labour markets. 相似文献
332.
Reiss Stefan Prentice Liza Schulte-Cloos Christoph Jonas Eva 《Gruppendynamik und Organisationsberatung》2019,50(2):145-161
Gruppe. Interaktion. Organisation. Zeitschrift für Angewandte Organisationspsychologie (GIO) - In der gegenwärtigen Arbeitswelt müssen Organisationen in der Lage sein, sich schnell... 相似文献
333.
We take advantage of the fact that for the Austrian SILC 2008–2011, two data sources are available in parallel for the same households: register-based and survey-based income data. Thus, we aim to explain which households tend to under- or over-report their household income by estimating multinomial logit and OLS models with covariates referring to the interview situation, employment status and socio-demographic household characteristics. Furthermore, we analyze source-specific differences in the distribution of household income and how these differences affect aggregate poverty indicators based on household income. The analysis reveals an increase in the cross-sectional poverty rates for 2008–2011 and the longitudinal poverty rate if register data rather than survey data are used. These changes in the poverty rate are mainly driven by differences in employment income rather than sampling weights and other income components. Regression results show a pattern of mean-reverting errors when comparing household income between the two data sources. Furthermore, differences between data sources for both under-reporting and over-reporting slightly decrease with the number of panel waves in which a household participated. Among the other variables analyzed that are related to the interview situation (mode, proxy, interview month), only the number of proxy interviews was (weakly) positively correlated with the difference between data sources, although this outcome was not robust over different model specifications. 相似文献
334.
This article examines the relationship between demand and scheduling in college football. We first derive two different metrics for team quality, and then use those metrics to see how they impact attendance. We find that there is a positive interaction between the quality of the teams. Then various simulations are run to see how attendance would change under different scheduling scenarios. If teams are put into conferences based on the team quality measures, the average per game attendance only rises 1–2%. This is true if 1‐year or 10‐year quality measures are used. However, our simulation suggests that this effect would be more than offset, mainly because schools with larger capacity would play fewer home games and so aggregate attendance would fall. We discuss whether this effect would be mitigated by capacity adjustments in the longer term. (JEL L83, Z20, C78) 相似文献
335.
In conventional economics, a great deal of energy has been devoted to empirical validation of the benefits of specialization in terms of efficiency, in fields including the agricultural sector. Marx and Engels's claim that the diversification of working lives would increase work satisfaction has gained attention among social scientists but has never been verified for the agricultural sector, despite a growing body of literature on the determinants of work satisfaction. Based on a survey of Swiss and northeast German farmers, this study shows that farm diversification significantly increases work satisfaction. This applies both to the lines of agricultural production pursued on a farm and to the farm's nonagricultural activities. 相似文献
336.
Sarah A. Matthies Stefan Rüter Frank Schaarschmidt Rüdiger Prasse 《Urban Ecosystems》2017,20(4):897-909
Urban green spaces provide habitat for numerous plant and animal species. However, currently we have little knowledge on which determinants drive the species richness within and across taxonomic groups. In this paper we investigate the determinants of total, native, and endangered species richness for vascular plants, birds, and mammals within and across taxonomic groups. We examined a stratified random sample of 32 urban green spaces in Hannover, Germany. Species inventories for plants and birds were generated on the basis of line transect surveys. Mammals were surveyed by means of point counts using camera traps. Using a principal component analysis and multiple regression models, we tested 10 explanatory variables for species-area effects, distance effects, and the effects of habitat structure of green spaces on species richness. When analyzing single explanatory variables, we determined that the species richness of all groups was significantly positively correlated to patch area, number of habitat types, and a short distance to the nearest green space. Testing combined effects of variables showed that patch area in combination with habitat heterogeneity was most important for plants (total, native, and endangered), birds (total and native), and overall species richness. This emphasizes the importance of the species-area effect and the effects of habitat structure on species richness in urban green spaces. We conclude that, in the context of urban planning, it is important to conserve large green spaces that include a high diversity of habitats to maintain high species richness. 相似文献
337.
School social workers can be seen as a professional group operating on the margin of an educational logic that dominates schools as institutions. This conditions what tasks they are assigned and what aspects of social work knowledge they will find relevant. On the other hand, the role as a sole professional and relative outsider in the organization provides a potential for school social workers to transcend established theories of social work practice. This article aims to investigate how social work theory is applied in school social work. Twelve semi-structured interviews with school social workers were analysed in terms of how they relate to four knowledge approaches derived from the literature: task-centred, systems theory, strengths and anti-oppressive. Contrary to claims within the sociology of professions that social work practice is formed largely by organizational context rather than a discipline-specific knowledge base, the interviewees seemed to lean on a robust professional foundation within social work theory. Interviewees strongly emphasised their role as working for the individual pupil and positioned themselves as somewhat in opposition to a somewhat oppressive school environment. 相似文献
338.
Stefan Herbrechter 《Journal for Cultural Research》2017,21(4):323-336
AbstractThis article explores the relationship between critical distance and the idea of proximity. In times that are often described as ‘global’, ‘24/7’, ‘connected’, ‘networked’ and ‘immersive’, distance seems ever reduced and proximity omnipresent. The contemporary impression of ubiquitous proximity might constitute a threat to the survival of critical distance understood either as a cornerstone of enlightened and humanist critical practice or as a key metaphysical ‘technology’. The resulting ‘crisis of critical distance’ produces the question of how to position oneself with regard to the ‘other’ in a time that lacks distance and privileges proximity? In tracking the ambiguity (or the ‘aporia’) that surrounds proximity – the desire to be near and the need to maintain a distance – this article rereads some key Heideggerian and Derridean texts in order to attempt a deconstruction of the opposition of distance and proximity at work in the ‘metaphysics of presence’. 相似文献
339.
For the period of the 1960s to the late 1980s, this paper examines variation in job opportunities for men and women in the occupationally segmented and highly gender-segregated Swiss labor market. Job opportunities are defined as the volume of job openings potentially accessible to individuals with given skills and other desired characteristics. They are conceptualized within the queuing approach, taking into account the structure and cyclical fluctuations of the Swiss labor market. 相似文献
340.
Stefan Rayer 《Population research and policy review》2007,26(2):163-184
Population projections are judged primarily by their accuracy. The most commonly used measure for the precision component
of accuracy is the mean absolute percent error (MAPE). Recently, the MAPE has been criticized for overstating forecast error
and other error measures have been proposed. This study compares the MAPE with two alternative measures of forecast error,
the Median APE and an M-estimator. In addition, the paper also investigates forecast bias. The analysis extends previous studies
of forecast error by examining a wide range of trend extrapolation techniques using a dataset that spans a century for a large
sample of counties in the US. The main objective is to determine whether the choice of summary measure of error makes a difference
from a practitioner’s standpoint. The paper finds that the MAPE indeed produces error values that exceed the robust measures.
However, except for situations where extreme outliers rendered the MAPE meaningless, and which are rare in real world applications,
there was not a single instance where using an alternative summary measure of error would have led to a fundamentally different
evaluation of the projections. Moreover, where differences existed, it was not always clear that the values and patterns provided
by the robust measures were necessarily more correct than those obtained with the MAPE. While research into refinements and
alternatives to the MAPE and mean algebraic percent error are worthwhile, consideration of additional evaluation procedures
that go beyond a single criterion might provide more benefits to producers and users of population forecasts.
相似文献
Stefan RayerEmail: |