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Ruin probability in a risk model with variable premium intensity and risky investments
Author(s) -
Yuliya Mishura,
Mykola Perestyuk,
Olena Ragulina
Publication year - 2014
Publication title -
opuscula mathematica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.481
H-Index - 16
eISSN - 2300-6919
pISSN - 1232-9274
DOI - 10.7494/opmath.2015.35.3.333
Subject(s) - mathematics , variable (mathematics) , risk model , intensity (physics) , econometrics , actuarial science , statistics , economics , mathematical analysis , physics , quantum mechanics
We consider a generalization of the classical risk model when the premium intensity depends on the current surplus of an insurance company. All surplus is invested in the risky asset, the price of which follows a geometric Brownian motion. We get an exponential bound forthe infinite-horizon ruin probability. To this end, we allow the surplus process to explode and investigate the question concerning the probability of explosion of the surplus process between claim arrivals

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