Three-mode factor analysis with binary core and orthonormality constraints

Summary A constrained version of Three-mode Factor Analysis model is considered in order to make its interpretation easier. The constraints are obtained by fixing some elements of the core to zero and requiring orthonormal factor loadings. An algorithm to solve the related minimization problem and an example of core constraints with theoretically interesting features, are given.     

Special issue on Governance and accounting regulation

Journal of Management and Governance -     

Suicide risk and exposure to mobbing

The aim of this study was to study suicide risk in subjects exposed to mobbing, that is, systematic psychological harassment in the workplace. Such psychological harassment, unique to the workplace, threatens both the emotional well-being and professional ability of its victims. The items of the Minnesota Multiphasic Personality Inventory-2 (MMPI-2) that assess suicide risk were studied in 102 individuals who were exposed to mobbing. The results indicated that individuals exposed to mobbing had clear differences on the MMPI-2 from normative samples. In addition, those who appeared to be at risk for suicide differed in their scores from those not at risk. Implications for psychopathology and suicide preventions are discussed.     

A Permutation and Combination-Based Solution on the Ranking of Multivariate Populations in the Case of Ordered Categorical Responses with Application to the Evaluation of the Indoor Environment

This article deals with the problem of classifying and ranking several multivariate populations of interests using the permutation and combination approach providing also an inferential validity of the procedure. The need to define an appropriate classification of populations, i.e., products, services, teaching courses, degree programs, and so on, is very common within many areas of applied research. Many times the populations of interest are multivariate in nature meaning that many aspects of that populations can be simultaneously observed on the same unit/subject. From a statistical point of view, when the response variable of interest is multivariate in nature, the problem may become quite difficult to cope with especially in case of ordered categorical responses, due to the large dimensionality of the parametric space. Nonparametric inference based on the NPC methodology however, allows us to overcome these limitations, without the need of referring to assume any specified random distribution.     

Ergonomic assessment among radiology technologists: a survey in a hospital

This article is the result of an Ergonomic Diagnosis in a study for a Specialization Course in Ergonomics. The research is being done in a public hospital in the city of Rio de Janeiro, where the target system is the radiology sector. For diagnosis purposes, subjective techniques were used, such as an open-ended survey, Corlett questionnaire and techniques for evaluating ergonomic risk such as Owas and Rula. Systematic observation was emphasized using photos and films. Preliminary observations made to the radiographers found that these professionals suffer risks of physical and verbal harassment, as well as sexual harassment. Most of them feel discriminated against in terms of race and accumulate activities demanding a lot of attention, as the medical diagnosis and subsequent procedures will depend on the outcome of this task. They accumulate tension due to the weight of responsibility, since there are cases where the patient has risk of death.     

Ergonomic analysis in cold storage rooms: a study of case

The human work possess a history and, in this dimension, the man is submitted to the conditions that confer it physical and psychological consequences. The activity of work in the present time imposes adverse labor conditions. The ergonomics is a science that it aims at to study the real activity of the work with sights its transformation. This study it was carried through in a sector of processing of meats in a Agroindustry, with the objective to analyze ergonomically the conditions of work and the possible risks it greets it of the workers. It was verified that in the accomplishment of the activities it had an overload of the musculature of superior members, where if it verified the requirement of repetitive movements during four working hours. Also observed the organization of the work, the position of the employees and way to carry through the activities. With the study we conclude that the ergonomic risks in the sector are related to the position during the accomplishment of the activities, requirement of repetitive movements, e the cold that affects the muscular control, reducing some motor abilities as the dexterity and the force.     

Valuation of Air Quality in Chile: The Life Satisfaction Approach

Social Indicators Research - Chile is one of the worst countries in Latin America in terms of urban air pollution. This situation negatively affects the health and well-being of Chileans. This...     

Corporate Governance mechanisms as drivers that enhance the credibility and usefulness of CSR disclosure

The aim of this paper is to examine what kinds of CG mechanisms (institutional, firm or group level) are driving getting an Assurance or a GRI application level, like CSR disclosure decisions linked with credibility and usefulness of the information disclosed, in the particular context of energy companies. Previous evidence is scarce and does not jointly consider all levels of CG mechanisms. Our sample is composed by 176 energy companies worldwide which currently report about CSR through a sustainability report. On the basis of our findings, we could support the idea that the credibility of the CSR report of the utilities companies will be greater if the company listed in a Relation-Based country has an Assurance report. In addition, those companies that have a concentrated ownership and the fewer insiders sitting in the BoD present more probabilities of having an Assurance. Moreover, the usefulness of the CSR information provided by this kind of firms will be higher, the greater the efficiency of the BoD will be. The enhancement of the credibility and the usefulness of the information reported is essential for companies involved in this sector due to the frequent claim of window-dressing behaviours.     

The queen bee: A myth? The effect of top-level female leadership on subordinate females

We investigate the effect of female leadership on gender differences in public and private organizations. Female leadership impact was constructed using a quasi-experiment involving mayoral elections, and our research used a sample of 8.3 million organizations distributed over 5600 Brazilian municipalities. Our main results show that when municipalities in which a woman was elected leader (treatment group) are compared with municipalities in which a male was elected leader (control group) there was an increase in the number of top and middle female managers in public organizations. Two aspects contribute to the results: time and command/role model. The time effect is important because our results are obtained with reelected women – in their second term – and the command/role model (the queen bee phenomenon is either small, or non-existent) is important because of the institutional characteristics of public organizations: female leaders (mayor) have much asymmetrical power and decision-making discretion, i.e., she chooses the top managers. These top managers then choose middle managers influenced by female leadership (a role model). We obtained no significant results for private organizations. Our work contributes to the literature on leadership by addressing some specific issues: an empirical investigation with a causal effect between the variables (regression-discontinuity design – a non-parametric estimation), the importance of role models, and how the observed effects are time-dependent. Insofar as public organizations are concerned, the evidence from our large-scale study suggests that the queen bee phenomenon may be a myth; instead, of keeping subordinate women at bay, our results show that women leaders who are afforded much managerial discretion behave in a benevolent manner toward subordinate women. The term “Regal Leader” instead of “Queen Bee” is thus a more appropriate characterization of women in top positions of power.