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171.
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
172.
Martin Grunewald Thomas Volling Christoph Müller Thomas S. Spengler 《Zeitschrift für Betriebswirtschaft》2018,88(7-8):971-1007
We consider multi-item single-source ordering with detailed consideration of transportation capacities. Such problems are characteristic for companies which operate direct links as part of their supply chain to transport loads with heterogeneous physical dimensions and fluctuating demands. Given knowledge on transportation demands, companies can eliminate future transports by shifting the load to fill the inflexible capacity of prior transports. While reducing transportation costs, doing so will ceteris paribus imply inventory. The problem is to coordinate orders across multiple items such that transport costs are minimized at minimal increase in inventory. The approach is distinct from prior works in that it considers detailed loading restrictions. We therefore interpret the problem as a multi-period version of the container loading problem. A wall building approach is used and incorporated into a heuristic rolling horizon procedure. We test the proposed procedure on some random problems which resemble a real inbound case from the automotive industry. As compared to period-by-period planning and two benchmarks with aggregated capacity models from the literature and practice, cost savings are possible under a wide range of operating conditions and mostly independent of the shipping volume. The largest potential exists for mid- to long-distance transports. There is a relevant potential to improve short-distance transports as well, however, only if inventory cost rates are moderate. 相似文献
173.
Christoph Spörlein Ted Mouw Ricardo Martinez-Schuldt 《Journal of ethnic and migration studies》2017,43(3):475-494
Recent trends suggest a decline in the rate of intermarriage between Mexicans and non-Hispanic whites. In this paper, we argue that interpretations of this trend as a decline in preferences for intermarriage are misleading because of the lack of adequate data that captures both spatial and temporal variation in the level of intergroup contact. Using data from the Decennial Census (1980–2000) and the American Community Survey (2008–2011), we employ a novel methodological approach to disentangle the impact of spatial diffusion, ethnic replenishment, and shifts in preferences for homophily on Mexican ethnic intermarriage patterns across 543 Consistent Public Use Microdata Areas (c-PUMA). Once changes in the demographic composition of c-PUMAs are accounted for, multilevel models for repeated cross-sectional data provide no evidence of a change in the marital preferences of Mexicans over time. Trends in intermarriage rates are predominantly explained by compositional and structural changes. 相似文献
174.
Sibylle Puntscher Christoph Hauser Janette Walde Gottfried Tappeiner 《Social indicators research》2016,125(2):431-449
Social capital has become a highly successful concept in social science despite widely perceived shortcomings in conceptualization and operationalization. The latter is frequently performed as a principal component analysis of individual survey data with subsequent aggregation to regional or national levels. The central focus of this paper is the interpretation of the diverging correlations observed between the dimensions elaborated on an individual and an aggregate level. We illustrate that the correlations of regionally aggregated components are the result of an improper application of a single-level model to a multilevel structure. This mechanism is demonstrated empirically by adopting results from the European Social Survey and elaborating dimensions of social capital from both individual and aggregate survey data for European regions. The findings clearly indicate that the observed ecological correlations are not simply spurious or inconsistent due to an ecological fallacy condition, but rather reflect the influence of regional driving forces. Researchers need to be more careful in taking account of the multilevel nature of the data in order to produce valid results. In fact, the often applied procedure of individual factorization and subsequent aggregation of data provides a mixture of the two level effects with potentially misleading implications. 相似文献
175.
Christoph Sajons 《Journal of population economics》2016,29(2):395-420
This study examines the effect of birthright citizenship on the outmigration behavior of migrant families in Germany. Using the introduction of birthright citizenship on 1 January 2000 and cohort-level data from the German Microcensus from 2001 to 2006, I exploit the differential treatment of birth cohorts around the enactment date to conduct a regression discontinuity analysis. Comparing the outmigration behavior of foreign-citizen families with children born in Germany directly before and after the cutoff, I find evidence that granting citizenship to immigrant children reduces the likelihood that their parents leave the country again. 相似文献
176.
Christoph Bader Sabin Bieri Urs Wiesmann Andreas Heinimann 《Social indicators research》2016,126(2):483-502
This paper presents an indicator for measuring multidimensional poverty in the Lao People’s Democratic Republic applying the Alkire–Foster methodology to the Lao Expenditure and Consumption Survey 2002/2003 and 2007/2008. We calculated a multidimensional poverty index (MPI) that includes three dimensions: education, health, and standard of living. Making use of the MPI’s decomposability, we analyse how much each of the different dimensions and its respective indicators contribute to the overall MPI. We find a marked reduction in the multidimensional poverty headcount ratio over the study period, regardless of how the indicators are weighted or how the deprivation and poverty cut-offs are set. This reduction is based on improvements regarding all indicators except cooking fuel and nutrition. We observe no significant reduction in the intensity of poverty, however; there are wide disparities between the country’s regions and between urban and rural areas. The proportion of poor people in rural areas is more than twice as high as that in urban areas. By complementing the traditional income-based poverty measure, we hope to provide useful information that can support knowledge-based decision-making for poverty alleviation. 相似文献
177.
Francesco Burchi Armin von Schiller Christoph Strupat 《International social security review》2020,73(3):13-32
Social protection and revenue collection are often regarded as potential drivers of social cohesion. The article joins this debate, providing three main contributions. First, we carefully discuss the concept of social cohesion and endorse one specific definition. Second, we propose using the concept of the “fiscal contract” as the key theoretical lens to understand the often neglected potential joint effects of social protection and revenue collection policies on social cohesion. Third, we illustrate three main mechanisms through which these policies can have positive or negative impacts on the different components of social cohesion and highlight the relevance of these for policy-makers deliberations. 相似文献
178.
Judit Pál Christoph Stadtfeld André Grow Károly Takács 《Journal of research on adolescence》2016,26(4):805-818
The emergence of disliking relations depends on how adolescents perceive the relative informal status of their peers. This phenomenon is examined on a longitudinal sample using dynamic network analysis (585 students across 16 classes in five schools). As hypothesized, individuals dislike those who they look down on (disdain), and conform to others by disliking those who they perceive as being looked down on by their peers (conformity). The inconsistency between status perceptions also leads to disliking, when individuals do not look up to those who they perceive to be admired by peers (frustration). Adolescents are not more likely to dislike those who they look up to (admiration). The results demonstrate the role of status perceptions on disliking tie formation. 相似文献
179.
We consider whether Benford’s Law can be used to improve target selection prior to the start of on-site tax audits, thus increasing
effectiveness and efficiency of fiscal enforcement. Laboratory experiments are conducted to obtain manipulated data and compare
these to data which are known to be unmanipulated. We find that Benford’s Law can be used as a tool for audit selection, but
that auditors must be cautious to ensure that Benford’s Law can be expected to apply to unmanipulated data of the prospective
audit target. We also find that subjects cannot adapt sufficiently to Benford’s Law during tax fraud activity.
相似文献
Christoph WatrinEmail: |
180.
Anmerkungen zur Professionalisierung des Coaching auf dem Hintergrund des klassischen Professionsbegriffs 总被引:1,自引:1,他引:0
Dr. phil. Christoph J. Schmidt-Lellek 《Organisationsberatung, Supervision, Coaching》2006,13(2):183-192
Some comments on the professionalization of coaching with regard to the classical concept ?profession“ In the current discussions on the professionalization of coaching the concept ?profession“ often is not clear. Therefore, the author first delineates the classical concept of profession and its main criterions. He then discusses the question whether these criterions are present in coaching and whether coaching may or should be conceived as an independent profession. Considering the tendencies of deprofessionalization in the traditional professions, it seems to be meaningful to understand coaching as a profession, but with a revised theoretical concept of profession: Particularly concerning the necessary scientific orientation it demands an interdisciplinarity instead of a fixed corpus of knowledge. The professionality of the practitioner means an orientation on general values and concepts of understanding and acting and is a central aspect of quality of coaching. 相似文献