CUSUM charts for monitoring the mean of a multivariate Gaussian process

In this paper control charts for the mean of a multivariate Gaussian process are considered. Using the generalized likelihood ratio approach and the sequential probability ratio test under an additional constraint on the magnitude of the change various types of CUSUM control charts are derived. It is analyzed under which conditions these schemes are directionally invariant. These charts are compared with several other control schemes proposed in literature. The performance of the charts is studied based on the maximum average delay.     

The influence of parameter estimation on the ARL of Shewhart type charts for time series

In this paper we discuss the behavior of the Shewhart residual chart and the modified Shewhart chart if the parameters of the underlying process are unknown and thus have to be estimated. We focus on the estimation of the variance. For AR models we also consider the estimation of the AR coefficients. The average run length (ARL) of the control chart with estimated parameters is compared with the ARL of the scheme for known parameters and with the ARL for independent variables. Additionally, we give recommendations on the choice of the estimators in the context of Shewhart control schemes.     

A multivariate extension of the Lorenz curve based on copulas and a related multivariate Gini coefficient

The Journal of Economic Inequality - We propose an extension of the univariate Lorenz curve and of the Gini coefficient to the multivariate case, i.e., to simultaneously measure inequality in more...     

The internal logic and contradictions of migration control: An excursion into theory and practice in relation to east‐west migration

The migration problem has acquired a new dimension with the breakdown of State‐Communism which has induced new and variable waves of migration out of Eastern Europe. The response of the West to these waves, as well as to the ever‐increasing likelihood of emigration from countries of the Third World has been one of mounting regulation. The present article critically juxtaposes the underlying, albeit short‐term, logic of regulation with that of East‐West migration — itself a highly variated and differentiated process — in an attempt to demarcate a more comprehensive approach to the East‐West migration subject.     

The Linguistic Reflex of Social Change: From Tsarist to Soviet Russian Kinship*

… a scientific statement is a statement that can be disproved, by which we mean, of course, a statement worded in such a way as to make it clear what sort of data would be adequate to overthrow it…     

The Critical Role of the Initial Stages of Cross-Sector Partnerships and Their Implications for Partnerships’ Outcomes

The paper presents research findings on the initial stages of the life cycle of cross-sector partnerships in the social services. The findings clearly show the importance and impact of the initial stages on the establishment and institutionalization of the partnerships over time. These stages are mainly characterized by clarifying the common goals of the partnership, mobilizing support to achieve the goals, overcoming resistance and relieving fears while convincing opponents to change their attitudes toward the partnership, and formalizing and constructing administrative processes and procedures. Special attention is given to the emotional energy that the management and workers invest in the initial stages in order to overcome barriers as well as ideological, cultural, and procedural gaps between the partner organizations. The relationships between selected organizational properties that typify the initial stages of cross-sector partnerships and the achievement of goals and outcomes are presented, analyzed, and discussed.

     

Public attitudes toward the identification and reporting of alleged maltreatment cases among social groups in Israel

Objectives

To identify what types of behaviors are defined as child maltreatment by the Israeli public, and which types of incidences are seen as justifying reporting to the authorities. The study examines to what extent these views are different among social groups in the Israeli society (e.g., Arabs and ultra-Orthodox).

Methods

A telephone survey was conducted among a representative sample of 812 adults in Israel, with an oversampling of additional 50 ultra-Orthodox Jews. A series of 12 scenarios was presented to respondents who indicated whether each of them was a case of maltreatment and whether it justified reporting to authorities.

Results

There was strong consensus among the participants that some scenarios indicate maltreatment. These scenarios related to all types of maltreatment and were associated with potentially severe harm. The tendency to justify reporting is weaker than the tendency to see them as cases of maltreatment. Further, there is a correspondence (although not a perfect one) between to what extent scenarios are judged as more indicative of maltreatment and the extent to which they are seen as justifying reporting. Both Arabs and ultra-Orthodox Jews tend to see more maltreatment than Jews in general and non ultra-Orthodox Jews in particular, except for using corporal punishment to “educate” an insolent child. No consistent differences were found between these groups in their justification for reporting.

Conclusions

There are indications that the underlying dimension which determines the identification of cases as maltreatment and justifies reporting is the severity of the potential harm to child, rather than the type of maltreatment (i.e., physical, sexual, neglect or emotional). The authors suggest that public campaigns should be tailored to address the different attitudes and perspectives of different social-cultural groups.     

The image of the Warsaw Pogrom of 1881 in late nineteenth‐century Polish literature

This article interprets how the Christmas 1881 Warsaw Pogrom was depicted in Polish literature, using novels and short stories written soon after this incident as the source. It considers Eliza Orzeszkowa's “O ?ydach i kwestii ?ydowskiej,” written soon after the pogrom, in which she tried to analyse the reasons for what had happened in Warsaw. Other sources it examines are Konopnicka's short story “Mendel Gdański” and Boles?aw Prus's Lalka, which is often considered the best Polish novel of the nineteenth century. In analysing these sources, the article considers the varying responses to the pogrom, which was a kind of shock, since Polish liberals considered their part of the tsarist empire exempt from the anti‐Jewish excesses that had occurred in earlier months in southern Russia. However, the outbreak of violence in the Polish capital inevitably meant a closer re‐examination of the Polish context and its often complex Jewish–gentile relationship.     

A framework for understanding collective leadership: The selective utilization of leader and team expertise within networks

To date, the dominant approach to leadership research assumes that all aspects of the leadership role within a team are embodied by a single individual. In the real world, however, this is rarely the case. Rather, multiple individuals within the team may serve as leaders in both formal and informal capacities, and the shifting of leadership responsibilities is often rooted in which individual's expertise is most relevant to the given problem. In the present effort, we add to the rapidly growing body of work that focuses on the distribution of the leadership role among multiple individuals. We have reviewed relevant extant literature and proposed an integrated framework for understanding the collective leadership process. Also, in developing this framework we have taken an information and expertise-based approach such that we propose that collective leadership, or the distribution of the leadership role, is a function of selectively utilizing the information or specialized expertise that individuals within the network possess. In reviewing the framework, 55 propositions with regard to the collective leadership process are outlined and suggestions for future research are provided.     

Price Effects of the Minimum Wage: A Survey Data Analysis for the German Construction Sector

Utilizing the link between employment and price changes as a result of minimum wages, we use firm‐level data to evaluate the effect of minimum wage introduction in the German construction sector. In East Germany we find significant positive price effects that exclude the possibility of rising employment. Rather, the results indicate the existence of a competitive sector‐specific labour market, and thus declining employment. In contrast, we cannot find any significant price reaction for West Germany. This suggests that the implemented minimum wage in West Germany is too low in comparison to the predominantly paid wages and is hence not binding.