Infra-humanization: The Wall of Group Differences

Infra-humanizing outgroups involves considering outgroups less human and more animal-like than the ingroup, which is perceived, in essence, as fully human. In this article, the first section presents the theoretical background of infra-humanization and distinguishes it from related concepts, such as dehumanization. The three basic hypotheses of the theory are then presented with a summary of empirical evidence. Social implications follow. Reasons for the pervasiveness of the phenomenon are examined as well as conditions that lead a specific outgroup to be infra-humanized. We also explore the consequences of infra-humanization, such as a lack of forgiveness for the outgroup and the ingroup's justification for past misdeeds against the outgroup, rather than guilt. Policy issues center on ways to combat essentialism, walls of difference between groups, and irrational symbols of superiority. The roles of egalitarian values and of deprovincialized intergroup contact are emphasized.     

Bayesian network structural learning from complex survey data: a resampling based approach

Statistical Methods & Applications - Nowadays there is increasing availability of good quality official statistics data. The construction of multivariate statistical models possibly leading to...     

Absenteeism and peer interaction effects: Evidence from an Italian Public Institute

Using microdata for a sample of about 350 workers employed by an Italian public institute, we explain individual absence rates considering both variables that may be related to health conditions and variables that may suggest shirking behaviour. Among these variables we especially focus our attention on the influence produced by the behaviour of randomly assigned peers. In order to handle reflection problems, we combine random assignment with the use of instrumental variables. The proportion of females in the peer group is used as an instrument of peer absence behaviour. From Two-Stage Least Square estimates it emerges that social and group interaction plays an important role in shaping individual absence behaviour.     

Marital Instability,Reproductive Behaviour and Women's Labour Force Participation Decisions

ABSTRACT The subject of this paper is the relationship between female labour force participation, fertility decisions and marital instability and pursues a two-fold objective: to explain the nature of the interdependences between participation and procreation decisions; and to look for, through empirical evidence, an explanation for women's labour force participation and fertility dynamics over the last 20 years. The empirical evidence, based on a panel of 19 countries over the period 1965–1989, shows that variables representing marital instability have an important role in woman's labour supply and fertility dynamics during this period.     

秘鲁城市女性劳动参与的微观研究

本文利用2001年秘鲁国家统计和信息局第三期家庭抽样调查数据,运用Logistic回归,分析了在秘鲁城市中,人口、经济和教育变量是如何影响女性劳动参与的.并且将首都利马和利马以外的其他地区加以区分来进行分析。研究结果表明在秘鲁城市范围内.女性劳动参与随着女性生命周期的变化出现了很明确的模式;生育、婚姻状况、与家长的关系、接受高等教育(指硕士及以上和培训)明显地影响女性劳动参与。在首都利马和其他地区的大部分影响方向很类似。但是在首都利马的影响程度要大一些。     

Stochastic Choice and Consideration Sets

We model a boundedly rational agent who suffers from limited attention. The agent considers each feasible alternative with a given (unobservable) probability, the attention parameter, and then chooses the alternative that maximizes a preference relation within the set of considered alternatives. We show that this random choice rule is the only one for which the impact of removing an alternative on the choice probability of any other alternative is asymmetric and menu independent. Both the preference relation and the attention parameters are identified uniquely by stochastic choice data.     

Is Infant Initiation of Joint Attention by Pointing Affected by Type of Interaction?

This article reports the results of two experiments studying the effects of type of interaction on infant production of declarative pointing. In Experiment 1, intensity of social presence was manipulated in adult–infant interaction with 12–19-month-olds (no social presence; adult responding only; adult also initiating joint attentional bids). Experiment 2 extended the analysis to peer interaction in 12–24-month-olds. Pointing was considered in the context of other gestures, vocalizations, and visual checking. The results show that pointing, but not vocalizing, virtually disappeared in the non-social condition, whereas differential effects between the adult-responding and initiating conditions were limited. Joint attentional bids were produced in peer interaction even in the younger age group, although overall the frequency of gestures was lower than that in adult–infant interaction. The results are discussed in the context of the relationship between communication and the infant developing social cognition.     

Evaluating the impact of a grouping variable on Job Satisfaction drivers

An important issue in Job Satisfaction analysis is to discover the most important drivers of the workers’ overall satisfaction. This can be investigated by means of data mining techniques able to measure the importance of a covariate in the prediction of a given outcome. Variable importance measures are mainly proposed in the literature in the framework of tree-based learning ensembles, like Random Forests or Gradient Boosting Machine. In this paper a Random Forest variable importance measure is used for mining the drivers of Job Satisfaction in the Social Service sector. In addition an innovative algorithmic procedure is proposed in order to assess the impact of a grouping variable on this variable importance measure. The goal is to investigate if the importance of a Job Satisfaction driver is different for subjects belonging to different groups.     

Correction to: From enforcement to financial reporting controls (FRCs): a country‑level composite indicator

Journal of Management and Governance - In the original publication of the article the following text and tables were published incorrectly. The correct text and tables have been provided with this...     

Extremes of Markov chains with tail switching potential

Summary.  A recent advance in the utility of extreme value techniques has been the characteri- zation of the extremal behaviour of Markov chains. This has enabled the application of extreme value models to series whose temporal dependence is Markovian, subject to a limitation that prevents switching between extremely high and extremely low levels. For many applications this is sufficient, but for others, most notably in the field of finance, it is common to find series in which successive values switch between high and low levels. We term such series Markov chains with tail switching potential, and the scope of this paper is to generalize the previous theory to enable the characterization of the extremal properties of series displaying this type of behaviour. In addition to theoretical developments, a modelling procedure is proposed. A simulation study is made to assess the utility of the model in inferring the extremal dependence structure of autoregressive conditional heteroscedastic processes, which fall within the tail switching Markov family, and generalized autoregressive conditional heteroscedastic processes which do not, being non-Markov in general. Finally, the procedure is applied to model extremal aspects of a financial index extracted from the New York Stock Exchange compendium.