TY - JOUR U1 - Zeitschriftenartikel, wissenschaftlich - begutachtet (reviewed) A1 - Bata, Katharina A1 - Schmidli, Hanspeter T1 - Optimal Capital Injections and Dividends with Tax in a Risk Model in Discrete Time JF - European Actuarial Journal N2 - We consider a risk model in discrete time with dividends and capital injections. The goal is to maximise the value of a dividend strategy. We show that the optimal strategy is of barrier type. That is, all capital above a certain threshold is paid as dividend. A second problem adds tax to the dividends but an injection leads to an exemption from tax. We show that the value function fulfils a Bellman equation. As a special case, we consider the case of premia of size one. In this case we show that the optimal strategy is a two barrier strategy. That is, there is a barrier if a next dividend of size one can be paid without tax and a barrier if the next dividend of size one will be taxed. In both models, we illustrate the findings by de Finetti’s example. KW - Steuer KW - Discrete Risk Model KW - Optimal Dividend Problem KW - Capital Injections KW - Tax KW - Bellman Equation KW - Two Barrier Strategy KW - de Finetti Model KW - Primary 91B30 KW - Secondary 60G42 KW - 60K30 KW - 60J10 KW - Bellman-Gleichung Y1 - 2020 UN - https://nbn-resolving.org/urn:nbn:de:hbz:832-epub4-22511 SN - 2190-9733 SS - 2190-9733 SN - 2190-9741 SS - 2190-9741 U6 - https://doi.org/10.1007/s13385-019-00221-1 DO - https://doi.org/10.1007/s13385-019-00221-1 VL - 10 IS - 1 SP - 235 EP - 259 S1 - 25 PB - Springer Berlin Heidelberg ER -