Articles by Ali Hirsa
Approximate risk parity with return adjustment and bounds for risk diversification
The authors approach diversifying risk contributions to improve returns by satisfying approximate risk parity and providing bounds on a risk spread (RS) metric that quantifies risk diversification and takes returns into account.
Fast pricing of American options under variance gamma
This research develops a new fast and accurate approximation method, inspired by the quadratic approximation, to get rid of the time steps required in finite-difference and simulation methods, while reducing error by making use of a machine learning…