Identifying Different Areas of Inhomogenous Mineral Subsoil: Spatial Fluctuation Approaches

We use a recently proposed fluctuation-type procedure for detecting breaks in spatial regions to distinguish between hard and soft areas of inhomogeneous mineral subsoil like additives, air pockets, and adhesion. For a proper application, some refinements of the procedure are necessary. Both simulation evidence of the refinement and the application on the subsoil yield favorable results.     

GROWTH OPPORTUNITIES,STRATEGIC SAVINGS,AND THE DOT‐COM BOOM AND BUST

Data from the dot‐com boom‐bust episode suggest that growth opportunities played an important role in explaining firms' financing strategy during this understudied episode. The low leverage of this sector was mainly driven by high growth firms which increased their leverage following the crash despite suffering a much larger fall in their market value. We present a parsimonious dynamic firm financing model where growth opportunities alone can generate the heterogeneous patterns in the financing and performance between high and low growth information technology firms prior to and following the market crash. The calibrated model also sheds light on the role played by monetary policy during that episode. (JEL G32, E22, E5)     

Social Self‐Control,Externalizing Behavior,and Peer Liking Among Children with ADHD‐CT: A Mediation Model

This study investigated the role of externalizing behavior as a mediator of the relation between social self‐control and peer liking among children with attention‐deficit/hyperactivity disorder‐combined type (ADHD‐CT). A model was proposed whereby externalizing behavior would fully statistically account for the direct relation of social self‐control to peer liking. One hundred seventy‐two children ages 7.0–9.9 years with ADHD‐CT were rated by their teachers regarding their social self‐control and by their parents and teachers regarding their rates of externalizing behavior. Same‐sex classmates provided ratings of overall liking. Structural equation modeling was used to assess the proposed model. Results supported the proposed model of externalizing behavior as fully statistically accounting for the relation of social self‐control to peer liking. This study demonstrated the crucial role that externalizing behaviors play in the social impairment commonly seen among children with ADHD‐CT.     

Neuro Linguistic Programming and Listening Behavior

Neuro Linguistic Programming (NLP) was employed in this study to determine whether its application would enhance the listening skills of subjects. Messages based on NLP were presented to the subjects. The messages that were presented in the auditory format proved to be most persuasive for the recipients. These results supported the recommendations of previous research. Implications for further research are presented.     

Examining the Relationship between Criminal Victimization and Accidents: A Routine Activities Approach*

Gottfredson et Hirschi ont avancé la théorie que la probabilité d'être victime d'un accident est plus élevée chez le criminel que chez le non-criminel. D'autres chercheurs, dont Jensen et Brownfield, ont mis en corrélation activité criminelle et éventualité de subir un accident. En procédant à une sous-analyse de résultats obtenus dans un échantillonnage pancanadien, les auteurs se penchent ici sur les victimes de délit et la probabilité qu'elles soient victimes d'un accident. Le recours à l'analyse de régresssion logistique et aux méthodes de calcul Tobit permettent ensuite aux auteurs de démontrer l'importance de facteurs démographiques et du mode de vie dans le calcul du taux d'accidents et de criminalité. Gottfredson and Hirschi have suggested that criminal offenders are more likely than non-offenders to be involved in accidents. Other researchers, such as Jensen and Brownfield, have identified an association between offending and victimization. Conducting secondary analysis on data from a national Canadian sample, this article investigates the relationship between criminal victimization and accidents. After analysing the data with logistic regression and tobit procedures, the authors point to the importance of demographic and lifestyle characteristics as predictors of both accidents and criminal victimizations.     

The Minimax,the Minimin,and the Hurwicz Adjustment Principle

In this paper the Hurwicz decision rule is applied to an adjustment problem concerning the decision whether a given action should be improved in the light of some knowledge on the states of nature or on other actors' behaviour. In comparison with the minimax and the minimin adjustment principles the general Hurwicz rule reduces to these specific classes whenever the underlying loss function is quadratic and knowledge is given by an ellipsoidal set. In the framework of the adjustment model discussed in this paper Hurwicz's optimism index can be interpreted as a mobility index representing the actor's attitude towards new external information. Examples are given that serve to illustrate the theoretical findings.     

Employer-initiated elections, 1968–1992

In 1968, employers filed 1,091 petitions resulting in 377 elections, 42.4 percent of which unions won. In 1992, the most recent year for which data are available, employers filed 247 petitions, 66 elections were held, and the union victory rate was less than 25 percent. This research examines both the legal environment and the activity levels of employer-initiated (RM) elections over the past 25 years.     

In memoriam Eckart Pankoke (24.6.1939–14.7.2007)

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