Jani Kinnunen

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In this paper the notion of generalized possibilistic risk premium is introduced as a measure of the risk aversion of an agent faced with several components of possibilistic risk. The main result of the paper is a formula for the calculation of the generalized possibilistic risk premium expressed in terms of a utility function and of some possibilistic(More)
Facebook use is a ubiquitous part of contemporary life. Based on user interviews this paper probes the performative actions presenting self on Facebook. Instead of a medium or a place Facebook usage is approached as a collection of social situation. The findings support earlier small scale studies of Facebook use and find that Facebook is mostly a playful(More)
Monitoring and laboratory data play integral roles alongside fate and exposure models in comprehensive risk assessments. The principle in the European Union Technical Guidance Documents for risk assessment is that measured data may take precedence over model results but only after they are judged to be of adequate reliability and to be representative of the(More)
In this paper we propose an approach of risk aversion for the situations with many risk parameters. Some of the parameters are described probabilistically, and others possibilistically. We introduce mixed risk premium vector, a notion, which combines probabilistic and possibilistic aspects of risk aversion. The main result of the paper is a formula for the(More)
This paper views operating synergies as real options that acquiring companies have in the post-acquisition M&A process. The paper builds on the synergistic restructuring theory, which states that both acquisitions and divestitures are wealth-creating activities. Acquisition synergies are broadly defined as arising both from resource redeployments between(More)
Possibility risk theory starts from the hypothesis that this is described by a fuzzy number and not by a random variable, as in the traditional probabilistic modeling. This paper is an attempt of possibilistic approach to risk management problem. In particular, the models proposed in this paper can be connected by the way the possibilistic risk influences(More)
This paper treats risk based on the notions of credibility measure and credibility expected value. Firstly, the paper derives and discusses the credibility expected value. Secondly, the paper presents a new method of analysis of possibilistic portfolios. The new step is a construction by which with a possibilistic portfolio one associates a probabilistic(More)