A four period game between two firms and two hackers is analyzed. The firms first defend and the hackers thereafter attack and share information. Each hacker seeks financial gain, beneficial information exchange, and reputation gain. The two hackers’ attacks and the firms’ defenses are...

We employ the expected signature of equity and foreign exchange markets to derive an optimal double-execution trading strategy. The signature of a path of a stochastic process is a sequence of real numbers that provides a full description of the evolution of the process. The double-execution...

On-line portfolio selection is an important and challenging question in computational finance and attracts increasing attention in the machine learning and data mining fields. Previously an on-line portfolio selection strategy called On-Line Moving Average Reversion (OLMAR) (Li et al., 2012)...