arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1508.04533math.PR
收藏

具有区态转换的跳扩散过程:鞅方法

On jump-diffusion processes with regime switching: martingale approach

Antonio Di Crescenzo, Nikita Ratanov

摘要:

研究了参数在随机时刻切换的跳扩散过程。受可能应用的启发,我们利用相对熵给出了这些过程的等价鞅测度。还开发了最小熵方法。结果表明,在相反的情况下,Lévy过程,对于这个模型的Esscher变换不产生最小的相对熵。

英文摘要:

We study jump-diffusion processes with parameters switching at random times. Being motivated by possible applications, we characterise equivalent martingale measures for these processes by means of the relative entropy. The minimal entropy approach is also developed. It is shown that in contrast to the case of Lévy processes, for this model an Esscher transformation does not produce the minimal relative entropy.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑