中文

衍生品市场中的内生泡沫:风险中性估值悖论

交易与市场微观结构 2011-09-06 v2 证券定价

摘要

本文强调了风险中性投资者在衍生品市场中产生内生泡沫的作用。我们发现,一个除完备性外具备完美市场所有特征且存在部分风险中性投资者的衍生品市场,可能表现出极端价格波动,这构成了对高斯随机游走假说的违背。这可视作一个悖论,因为它与关于信息有效市场中理性投资者价格的广泛猜想相矛盾。我们的发现意味着,价格并非总是衍生品基本价值的良好近似,且价格峰值或崩盘等极端价格波动可能具有内生起源,并以高于正常的频率发生。

关键词

引用

@article{arxiv.1106.5274,
  title  = {Endogenous Bubbles in Derivatives Markets: The Risk Neutral Valuation Paradox},
  author = {Alessandro Fiori Maccioni},
  journal= {arXiv preprint arXiv:1106.5274},
  year   = {2011}
}

备注

21 pages. The second version presents the following upgrades: improved precision in the definition of agents and their behaviour; simplification in the notation of the probability measure; simplification in section 4.1; addition of caveats in the conclusions. The results of the second version remain unchanged