In illiquid markets, option traders may have an incentive to increase their portfolio value by using their impact on the dynamics of the underlying. We provide a mathematical framework to construct optimal trading strategies under market impact in a multi-player framework by introducing...

This paper focuses on the speculative nature of the stock market in Romania, emphasizing the basic rules and risks associated with stock transactions. On the one hand, the speculative nature may be considered as a mandatory feature of the stock market, for the purposes of supporting a fair and...

Purpose – The purpose of this paper is to investigate the July 2007 introduction of a pre-close call auction on the New Zealand stock market and its effect on share pricing quality and market manipulation. Design/methodology/approach – Market quality was tested using the methodology of...

This book analyzes in depth all major derivatives debacles of the last half century including the multi-billion losses and/or bankruptcy of Metallgesellschaft (1994), Barings Bank (1995), Long Term Capital Management (1998), Amaranth (2006), Soci¨¦t¨¦ G¨¦n¨¦rale (2008) and AIG (2008). It...

Multi-fractal analysis is now widely used in medicine to distinguish healthy and pathological conditions (i.e., healthy and cancerous tissues). We follow the same approach for financial markets: fractal tools disclose hidden information from time series and allow the identification of market...

Purpose – The purpose of this paper is to examine the appropriateness and effectiveness of using the right of private action against perpetrators of market manipulation. Design/methodology/approach – The author examines legislation in the USA, which gives victims the right to pursue private...

In this paper, we use a discriminant analysis (DA) based model to identify stocks that are potentially manipulated. Earlier researchers have used Linear Discriminant Function (LDF), a type of DA, without validating the assumption governing the model. We tested the assumptions on data from the...