11. Multiscale decision theory builds upon decision theory and multiscale mathematics. 12. In decision theory , and in particular in Gordon Loeb model of information security investment. 13. Multiscale decision theory can model and analyze complex decision-making networks that exhibit multiscale phenomena. 14. Today it is a much debated problem in the philosophical branch of decision theory . 15. Estimation and decision theory in order to model perceptual distortion and even aesthetic judgment. 16. He learnt decision theory , cost benefit analysis and business law. 17. As an economist he made contributions to decision theory , monetary policy and other areas. 18. This theory fuses decision theory and multiscale mathematics and is referred to as multiscale decision-making. 19. However, some elements of frequentist statistics, such as statistical decision theory , do incorporate utility functions. 20. One such attempt is based on info-gap decision theory .