market crash is a phenomenon which occurs in stock markets occasionally and leads to loss of the investors’ wealth and assets in a relatively short period of time. therefore, attempts for prediction of this phenomenon are of much importance for the investors, financial institutions and government. to this date, numerous and varied studies have been carried out for predicting and modeling  stock...

We review recent results on the new concept of worst-case portfolio optimization, i.e. we consider the determination of portfolio processes which yield the highest worst-case expected utility bound if the stock price may have uncertain (down) jumps. The optimal portfolios are derived as solutions of non-linear differential equations which itself are consequences of a Bellman principle for worst...

different areas of modern financial tools and processes activities contain the matters like innovations in financial tools engineering and risk management. derivatives and especially stock exchange option is part of this innovation. among all numerical procedures in calculating the value of derivatives and the risk sensitivity parameters of option, binomial models are widely used. in this stud...

We provide plausibly identified evidence for the role of investor disagreement in asset pricing. Our natural experiment exploits staggered implementation Electronic Data Gathering, Analysis, and Retrieval (EDGAR) system, which induces a reduction disagreement. Consistent with models disagreement, EDGAR inclusion helps resolve around information events, leading to stock price corrections. The fo...

Given that the options market is now very large and significant part of the trade of financial instruments, the evaluation of pricing of these derivatives becomes very important for regulators as well as market participants. The value of an option can be estimated by using a variety of quantitative techniques based on the concept of risk neutral pricing. In the famous Black-Scholes pricing form...

ESG investment strategy has attracted increasing attention from the financial market, and inconsistency of enterprise rating results different agencies gradually become focus regulators investors. In this article, listed companies with ratings in Shanghai Shenzhen A-shares 2016 to 2020 were selected as research samples. Combined difference-in-differences model ordinary least squares methods, ra...

We propose that the minimal requirements for a model of stock market price fluctuations should comprise time asymmetry, robustness with respect to connectivity between agents, “bounded rationality” and a probabilistic description. We also compare extensively two previously proposed models of log-periodic behavior of the stock market index prior to a large crash. We find that the model which fol...