Wages and employment of French workers with African origin

Our study focuses on the differences in wages and employment between French workers with French parents and French workers with at least one African parent, using the Formation Qualification Professionnelle survey (Insee, Paris, 2003). We introduce econometric decompositions, which allow us to reach conclusions when the potentially discriminated group is small. Then, we clarify the impact of discrimination at the hiring level in this context. We find that unexplained parts in the employment decompositions are much larger than in the wage decompositions. This suggests that, in France, labor market discrimination is more frequent at the hiring level than in the compensation process.     

Arbeitsmarktflexibilisierung und wachsende Niedriglohnbeschäftigung in Österreich

Western societies have experienced an increasing flexibilization and deregulation of their labour markets in the last decades. These developments led to an expansion of non-standard work as well as low-paid employment. Nevertheless, there has been little systematic research on flexibilization and low-paid employment in Austria. Against this background, we discuss the growth of low-wages in Austria and analyse which social groups are especially affected by lowpaid work, using data from EU-SILC as well as ECHP for the years 1996–2010. While we find that those with better qualification tend to be better protected against low-pay risks, our results underline that employees in personal services and hospitality industry as well as non-standard workers are increasingly exposed to low-pay risks in the last 15 years.     

Why is Six Sigma so successful?

There can be little doubt that Motorola, General Electric, Black and Decker, Allied Signal (now Honeywell), ABB and Bombardier, have achieved impressive business performance in recent years. Their annual reports document this success. Furthermore, in several cases, the Annual Report clearly attributes this success to having followed a Six Sigma strategy. Not surprisingly, many other companies wish to learn what Six Sigma can do for them, and their first question is 'What exactly is Six Sigma?'. Unfortunately it is rather difficult, if not impossible, to define Six Sigma in one or two sentences. This paper identifies the essential elements of Six Sigma. Some are obvious, such as the extensive use of statistical techniques by employees known as Blackbelts. However, other more subtle, but very important, features of Six Sigma are concealed within the business culture of these successful companies. It is clear to those who have participated in this success, that any company embarking on Six Sigma will not succeed if it focuses on statistics whilst failing to develop a supporting culture.     

How to Succeed in a Transnational Labor Market: Job Search and Wages among Hungarian,Slovak, and Czech Commuters in Austria

This paper deals with job search strategies and wages among cross‐border commuters residing in the Central European Region (CENTROPE). Our main aim is to investigate the role of social networks as constitutive for job searching and for successful labor market integration. We build upon a theoretical framework developed by Aguilera and Massey, reflecting on the nexus of social networks, job search methods, and related labor market outcomes. Methodologically, we use a new quantitative survey on the employment careers of cross‐border commuters residing in the regions of the Czech Republic, Slovakia, and Hungary bordering on Austria, conducted in the winter/spring of 2012/2013 (N = 2,573). Our results corroborate the hypothesis that human and social capital resources as well as labor market characteristics serve as key factors for job search and labor market integration among cross‐border commuters in the CENTROPE transnational labor market.     

Control charts in practice

In the first issue of Significance , Roland Caulcutt suggested that a common feature of many successful companies is their development of a "management-by-fact" culture. He further suggested that such a culture requires that managers focus on processes, and that control charts be used at all levels throughout the organisation. In this follow-up article he explains how the various types of control chart are set up and used in practice.     

Tukey’s M-estimator of the Poisson parameter with a special focus on small means

We treat robust M-estimators for independent and identically distributed Poisson data. We introduce modified Tukey M-estimators with bias correction and compare them to M-estimators based on the Huber function as well as to weighted likelihood and other estimators by simulation in case of clean data and data with outliers. In particular, we investigate the problem of combining robustness and high efficiencies at small Poisson means caused by the strong asymmetry of such Poisson distributions and propose a further estimator based on adaptive trimming. The advantages of the constructed estimators are illustrated by an application to smoothing count data with a time varying mean and level shifts.