Your work may be killing you! Workaholism,sleep problems and cardiovascular risk

This study tests the relationships between workaholism (i.e. working excessively and compulsively), sleep problems and cardiovascular risk in 537 employees from five Spanish hospitals. Four types of worker (i.e. workaholics, positive workers, compulsive workers and hard workers) were distinguished, and their health indicators were compared. The results showed that workaholics experienced significantly more sleep problems (i.e. morning tiredness, sleeping while driving and sleeping fewer hours both on weekdays and at weekends, with poorer quality), had higher relative risk scores, and consumed more caffeine and alcohol than the other patterns of worker (positive, compulsive and hard workers). Further analyses revealed that sleep problems fully mediated the relationship between workaholism (i.e. working excessively and compulsively) and cardiovascular risk. The study emphasizes the fact that being a workaholic might be a significant risk factor for having sleep problems and cardiovascular disease.     

Distribution of product and quotient of bivariate generalized exponential distribution

In this work we derive closed form expressions for the probability density functions and moments of the quotient and product of the components of the bivariate generalized exponential distribution introduced by Kundu and Gupta (J Multivariate Anal, 100:581–593, 2009) and compute the percentage points. The derivations will be useful for practitioners of this bivariate model. We then give a real data application of the product.     

Too risk averse to purchase insurance?

This paper suggests a new explanation for the low level of annuitization, which is valid even if one assumes perfect markets. We show that, as soon there is a positive bequest motive, sufficiently risk averse individuals should not purchase annuities. A model calibration accounting for lifetime risk aversion generates a significantly smaller willingness-to-pay for annuities than the one generated by a standard time-additive model. Moreover, the calibration predicts that riskless savings finance one third of consumption, in line with empirical findings.     

An empirical comparison of Canonical Correspondence Analysis and STATICO in the identification of spatio-temporal ecological relationships

The wide-ranging and rapidly evolving nature of ecological studies mean that it is not possible to cover all existing and emerging techniques for analyzing multivariate data. However, two important methods enticed many followers: the Canonical Correspondence Analysis (CCA) and the STATICO analysis. Despite the particular characteristics of each, they have similarities and differences, which when analyzed properly, can, together, provide important complementary results to those that are usually exploited by researchers. If on one hand, the use of CCA is completely generalized and implemented, solving many problems formulated by ecologists, on the other hand, this method has some weaknesses mainly caused by the imposition of the number of variables that is required to be applied (much higher in comparison with samples). Also, the STATICO method has no such restrictions, but requires that the number of variables (species or environment) is the same in each time or space. Yet, the STATICO method presents information that can be more detailed since it allows visualizing the variability within groups (either in time or space). In this study, the data needed for implementing these methods are sketched, as well as the comparison is made showing the advantages and disadvantages of each method. The treated ecological data are a sequence of pairs of ecological tables, where species abundances and environmental variables are measured at different, specified locations, over the course of time.     

Bootstrapping Realized Volatility

We propose bootstrap methods for a general class of nonlinear transformations of realized volatility which includes the raw version of realized volatility and its logarithmic transformation as special cases. We consider the independent and identically distributed (i.i.d.) bootstrap and the wild bootstrap (WB), and prove their first‐order asymptotic validity under general assumptions on the log‐price process that allow for drift and leverage effects. We derive Edgeworth expansions in a simpler model that rules out these effects. The i.i.d. bootstrap provides a second‐order asymptotic refinement when volatility is constant, but not otherwise. The WB yields a second‐order asymptotic refinement under stochastic volatility provided we choose the external random variable used to construct the WB data appropriately. None of these methods provides third‐order asymptotic refinements. Both methods improve upon the first‐order asymptotic theory in finite samples.     

Credibility and Inflation Expectations: What we can tell from seven emerging economies?

This study is a contribution to the literature concerning credibility and its effect on the distribution between forward-looking behavior and backward-looking behavior for formation of inflation expectations in the case of emerging economies. Based on data gathered from seven inflation targeting emerging economies (Brazil, Chile, Colombia, Mexico, Poland, South Africa, and Turkey), this paper analyzes how much the credibility associated with the inflation target contributes to anchoring expectations. The findings denote that although credibility is relevant to reduce inflation expectations, these countries present low monetary credibility and thus the backward-looking behavior is predominant for the formation of inflation expectations. Therefore, in order to improve the expectations channel of monetary policy in emerging economies, a policy of increasing transparency regarding inflation expectations is mandatory to the central banks’ task of anchoring inflation expectations.     

Analysing public relations education through international standards: The Portuguese case

By using international reports on PR education as a benchmark we analyse the status of PR higher education in Portugal. Despite differences among the study programs, the findings reveal that the standard five courses recommendation by the Commission on Public Relations Education (CPRE) are a part of Portuguese undergraduate curriculum. This includes 12 of the 14 content field guidelines needed to achieve the ideal master's program. Data shows, however, the difficulty of positioning public relations in Portugal as an autonomous field within Communication Sciences.     

Modernity as Masquerade: Representations of Modernity and Identity in Turkish Humour Magazines

This article aims at an alternative analysis of Turkish “modernity” by analysing the representations in a popular humour magazine. This study departs from the idea that representations in “low” discourses in Turkey can provide us with a text other than those of the official-dominant discourses in order to see how the certainty and positivity attributed to the modern identity in the dominant ideology is elaborated, demystified, and subverted as well as contained. Essentially, in the magazine, one of the main sources of humour derives from the clash of two main identities, between those who are modern, civil, urban, and effeminate and those who are traditional, uncivil, rural, and super-masculine. In the modern urban space, the modern and traditional become a stake in the power struggles between groups. This struggle operates through tastes, styles, and the body, which are at the same time means of identity construction as well as marks of identity. This duality and the concomitant dualities have come to structure all significatory practices to such an extent that everything gets symbolically overloaded by these series of dualities. In this struggle, the essence and appearance duality is the main framework within which Turkey's modernity and identity are represented. “Modernity” is signified as a masquerade, a play of appearances and a stake in the power struggles among groups rather than as a measure of progress. Bodies, sexuality, and masculinity become the nodal points of the expression of identity struggles, not only of social groups but also of the Turkish nation.     

Migrant encounters with neo-colonial masculinity: producing European sovereignty through emotions

The EU/European political community’s reaction to irregular migrants is ambivalent. On the one hand, migrants are produced as people to be pitied, rescued, and saved. On the other hand, they are feared, despised, and left to die. The article explores this ambivalence from a gender perspective and asks how sovereign masculinities are produced through emotional performances in the politics of migration control and management. It will be argued that emotions such as fear, disgust, and compassion are performed in the biopolitical security governance of irregular migration by producing a “socially abject” life as its object. This is a life that is to be killed, despised, and saved. Encounters between the irregular migrant and a European border security actor constitute a neo-colonial masculinity. During the moment of the encounter with the other’s life, sovereignty is produced through emotional performances of border security actors. The discussion concludes with illustrations of how racialized bodies and lives are produced as objects of fear, disgust, and compassion through European neo-colonial masculinity. The article speaks to the debates in the literature on masculinities in global politics, emotions and politics, and critical border studies.     

Validation of the Flourishing Scale and Scale of Positive and Negative Experience in Portugal

The Flourishing Scale (FS) and the Scale of Positive and Negative Experience (SPANE) created by Diener et al. (Soc Indic Res 97:143–156, 2010) are instruments that assess psychological flourishing and feelings (positive and negative, and the difference between the two). In this study, the psychometric properties of both scales were explored by using two Portuguese samples (I: n = 734; II: n = 194). Reliability analysis and a multi-group confirmatory factorial analysis (MCFA) of both scales were performed. To examine the validity of FS and SPANE we analyzed their correlations with other well-being and happiness measures. Results showed that the Portuguese versions of both scales have good psychometric properties, and they also showed convergent validity. Results also demonstrated the unidimensional structure of the FS and a two-factor solution for the SPANE. The multi-group CFA of both scales evidenced an invariant structure. Both Portuguese versions of the scales behave consistently with the original and may be used in future studies of well-being.