We analyze optimal investment strategies under the drawdown constraint that the wealth process never falls below a fixed fraction of its running maximum. We derive optimal allocation programs by solving numerically the Hamilton-Jacobi-Bellman equation that characterizes the finite horizon...

We consider a risky asset whose instantaneous rate of returntakes two dierent values and changes from one to the other one at randomtimes which are neither known, nor directly observable. We study the optimalallocation strategy of traders who, in the presence of cost of transactions, investin...

We aim to compare financial technical analysis techniques to strategies which depend on a mathematical model. In this paper, we consider the moving average indicator and an investor using a risky asset whose instantaneous rate of return changes at an unknown random time. We construct...