A Smooth Nonparametric,Multivariate, Mixed-Data Location-Scale Test

Abstract

A number of tests have been proposed for assessing the location-scale assumption that is often invoked by practitioners. Existing approaches include Kolmogorov–Smirnov and Cramer–von Mises statistics that each involve measures of divergence between unknown joint distribution functions and products of marginal distributions. In practice, the unknown distribution functions embedded in these statistics are typically approximated using nonsmooth empirical distribution functions (EDFs). In a recent article, Li, Li, and Racine establish the benefits of smoothing the EDF for inference, though their theoretical results are limited to the case where the covariates are observed and the distributions unobserved, while in the current setting some covariates and their distributions are unobserved (i.e., the test relies on population error terms from a location-scale model) which necessarily involves a separate theoretical approach. We demonstrate how replacing the nonsmooth distributions of unobservables with their kernel-smoothed sample counterparts can lead to substantial power improvements, and extend existing approaches to the smooth multivariate and mixed continuous and discrete data setting in the presence of unobservables. Theoretical underpinnings are provided, Monte Carlo simulations are undertaken to assess finite-sample performance, and illustrative applications are provided.     

A study of the impact of environmental surroundings on personal well-being in urban China using a multi-item well-being indicator

We examine the relationship between atmospheric and water pollution, traffic congestion, access to parkland and personal well-being using a survey administered across six Chinese cities in 2007. In contrast to existing studies of well-being determinants by economists which typically employ single-item indicators, we use the Personal Well-being Index (PWI). We also employ the Job Satisfaction Survey (JSS) to measure job satisfaction, which is one of the variables for which we control when examining the relationship between environmental surroundings and personal well-being. Previous research by psychologists has shown the PWI and JSS to have good psychometric properties in western and Chinese samples. A robust finding is that in cities with higher levels of atmospheric pollution and traffic congestion, respondents report lower levels of personal well-being ceteris paribus. Specifically, we find that a one standard deviation increase in suspended particles or sulphur dioxide emissions is roughly equivalent to a 12–13% reduction in average monthly income in the six cities.     

Service robotics: an emergent technology field at the interface between industry and services

The paper at hand analyzes the economic implications of service robots as expected important future technology. The considerations are embedded into global trends, focusing on the interdependencies between services and industry not only in the context of the provision of services but already starting at the level of the innovation process. It is argued that due to the various interdependencies combined with heterogenous application fields, the resulting implications need to be contextualized. Concerning the net labor market effects, it is reasonable to assume that the field of service robotics will generate overall job creation that goes along with increasing skill requirements demanded from involved employees. It is analyzed which challenges arise in evaluating and further developing the new technology field and some policy recommendations are given.     

Nationality and the European union competing identities in the visual design of four European cities 1

In this study, we integrate visual and linguistic research to analyze the relationship between a city's regional, national, transnational, and European identities as the face of four cities depicts it. We explore the cultural identity of Brussels, Luxembourg, Munich, and Dortmund through the study of public signs found in these cities. We examine how the choice of language, layout, typography, accompanying images, and positioning of city signs reflect the tensions involving the change from a national or regional identity to a Pan‐European identity. Our methodology combines an ethnographic approach and neutral observations with interviews of city inhabitants. By combining interpretive analysis with a meta‐discursive approach to how signs are read and perceived, we consider both the production and reception ends of the signs.     

Gestaltungsspielräume und Zwänge der politischen Rolle

The lecture presented here in slightly modified form was held in June 1999 at the 9^th ?Constraint and Spontaneity“ conference sponsored by the group dynamics section of the DAGG. Ingrid Stahmer, who was born in 1942, has been serving in the Berlin government as Senator for Schools, Youth and Sport since 1996. Her political career goes back nearly twenty years beyond that, during which time she sat on the Berlin-Charlottenburg borough council and served as Senator for health and social affairs. The document covers her life in public office, which she vividly reflects upon and analyses using numerous examples from her personal experience. She observes how the possibilities for influencing and shaping policy develop and change along with the levels of political activity as responsibilities increase and administrative and organisational challenges become more complex. One thesis that can be deduced from this is: ?A gain in power (in the political sense) has a reciprocal impact on the range of influence and because accompanied by additional constraints reduces one’s capacity to act effectively.“ The speech contains an analysis of the constraints that work within an administrative body on different levels. The politician’s relationship to her ?roots“, the political party, is analysed as well as the interdependence between politics and the omnipresent power of media. The experience with political consultancy by professional, external and internal counselling runs through the text as well as through the politicans’s life. Also in that sense it is true that the influence on the ?soft“ factors of the organizational development diminishes with the rise in the political hierarchy.     

Introducing Evidence‐Based Family Assessment and Therapy in Child and Youth Mental Health Services: Applying Systemic Principles to Maintain,Sustain and Build Capacity

The purpose of this article is to overview the context of the mental health service in which we work, and family therapy's status prior to and after the impact of changes wrought by the introduction of the National Mental Health Policy. We then explore some key issues that we think contribute to the persistence of the occlusion of family therapy in child psychiatric services; and the strategies that we developed and are continuing to develop to support change. Finally, we describe the use of a family assessment instrument that we believe is central to our change strategy.     

On Government‐Subsidized Training Programs for Older Workers

We analyze the impact of subsidized training programs for older workers. We apply a dynamic matching approach using German registry data. We find that subsidized training improves the probability to remain in paid employment by approximately 2.5 percentage points in the 2 years following treatment. The impact on benefit claims is small and largely insignificant. Effects are more pronounced for part‐time workers, for long‐duration program participants, and for workers older than 55 years. The results suggest that the main driver of these outcomes is postponed retirement, potentially because of improved job satisfaction.     

Negotiating Inequality Among Adult Siblings: Two Case Studies

Qualitative instrumental case study analysis of adult siblings from 2 families explores how socioeconomic inequality among them affects their relationships to one another. Eight middle‐aged siblings’ observations of childhood, parental expectations, work and family history, lifestyle, and current sibling ties indicate that childhood interdependence, parallel parental treatment, similar intergenerational mobility, greater success of the younger rather than older siblings, and economic success due to other than individual effort facilitate smoother negotiations of material inequality and enhance the negotiation of sibling relationships as important sources of support. These new insights on negotiating sibling ties over time are related to various forms of capital, a life course perspective, and ambivalence, and point to fresh avenues for future research and theory.     

Pilot Study Sleepiness in physicians on night call duty

Little is known about how physicians' feelings of sleepiness and sleep patterns are affected by night call duties. In the present pilot study, the authors followed a group of staff (hospital) physicians during and following night call duties. They recorded feelings of sleepiness and sleep patterns every third hour. Results show measurable effects on the sleepiness scale with residual effects lasting up to two days after the actual night call duty. The authors suggest that increased attention should now be given to studies of the psychophysiological effects of both present and alternative work schedules for physicians.     

Competence in the face of adversity: the influence of early family environment and long‐term consequences

This paper investigates family characteristics that enable children to achieve competence despite being exposed to socio‐economic adversity, and analyses the long‐term outcomes of this positive adaptation. The main finding is that the protective factors that modify the impact of adversity are context specific, and show age as well as period effects. Positive adaptation during early childhood has long‐term consequences, yet resilient young people cannot completely overcome the experience of early socio‐economic disadvantage. The results indicate that future research must identify specific rather than general protective factors that provide protection against specific risks for young people in specific life contexts. Copyright © 2002 John Wiley & Sons, Ltd.