We consider the investment problem for a non-life insurance company seeking to minimize the ruin probability. Its reserve is described by a perturbed risk process possibly correlated with the financial market. Assuming exponential claim size, the Hamilton-Jacobi-Bellman equation reduces to a first order nonlinear ordinary differential equation, which seems hard to solve explicitly. We study the qualitative behavior of its solution and determine the Cramér-Lundberg approximation. Moreover, our approach enables to find very naturally that the optimal investment strategy is not constant. Then, we analyze how much the company looses by adopting sub-optimal constant (amount) investment strategies.
Sub-optimal investment for insurers / Longo, Michele; Stabile, Gabriele. - In: COMMUNICATIONS IN STATISTICS. THEORY AND METHODS. - ISSN 0361-0926. - 49:17(2020), pp. 4298-4312.
Titolo: | Sub-optimal investment for insurers | |
Data di pubblicazione: | 2020 | |
Autori: | ||
Stringa autori: | Longo, Michele; Stabile, Gabriele | |
Numero degli autori: | 2 | |
Nazionalità autore: | ITALIA | |
Lingua: | Inglese | |
Rivista: | COMMUNICATIONS IN STATISTICS. THEORY AND METHODS | |
Revisione (peer review): | Esperti anonimi | |
Volume: | 49 | |
Fascicolo: | 17 | |
Pagina iniziale: | 4298 | |
Pagina finale: | 4312 | |
Numero di pagine: | 15 | |
Editore: | Taylor & Francis | |
Digital Object Identifier (DOI): | http://dx.doi.org/10.1080/03610926.2019.1599020 | |
Codice identificativo Scopus: | 2-s2.0-85064761241 | |
Codice identificativo ISI: | WOS:000471554300001 | |
Abstract: | We consider the investment problem for a non-life insurance company seeking to minimize the ruin probability. Its reserve is described by a perturbed risk process possibly correlated with the financial market. Assuming exponential claim size, the Hamilton-Jacobi-Bellman equation reduces to a first order nonlinear ordinary differential equation, which seems hard to solve explicitly. We study the qualitative behavior of its solution and determine the Cramér-Lundberg approximation. Moreover, our approach enables to find very naturally that the optimal investment strategy is not constant. Then, we analyze how much the company looses by adopting sub-optimal constant (amount) investment strategies. | |
Parole Chiave: | insurance risk process; ruin probability; investment; sub-optimal strategies | |
Appartiene alla tipologia: | 01a Articolo in rivista |
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