Based on the general assumption that even problematic behaviours are associated with an inherently health-promoting motivation to cope with unpleasant or unsatisfying life situations, the compensatory model of media use focuses on how psychosocial vulnerabilities moderate links between media behaviours and adverse outcomes. The present paper means to further develop this approach by exploring the moderating role of state-and trait-level factors (state: perceived stress; trait: social interaction anxiety and loneliness) on the relation between video game consumption (i.e. playing duration and habitual gaming), motivations (i.e. achievement, social, immersion), and engagement (harmonious and obsessive engagement) within a largescale sample of mostly heavy gamers. Overall, results provided further evidence for the compensatory approach, with perceived stress emerging as a critical psychosocial factor that intensified positive and negative relations between several gaming behaviours and harmful outcomes. Moreover, our results reiterated the heuristic importance of intra-and interpersonally pressured (i.e. obsessive) engagement to explain adverse gaming outcomes as well as selfdetermined (i.e. harmonious) engagement as a potentially fruitful gateway toward more healthy gaming. These findings constitute solid empirical groundwork that may contribute to effective prevention and intervention methods against problematic gaming.

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This book deals in detail with the methods used to calculate the risk position value of a derivative counterparty risk position at institutions. To this end, it first examines the term risk, focusing especially on counterparty risks. Subsequently, it addresses the basics of quantifying counterparty risk, focusing principally on the treatment of a derivative counterparty risk position. Based on this, the previous and new methods of calculating the risk position value of a derivative counterparty risk position are presented in detail. Finally, the authors assess the significance of the risk position value of a derivative counterparty risk position in determining the overall amount of risk and the regulatory minimum capital ratios.

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