This paper empirically investigates the impact of internal ratings-based (IRB) approach on the risk weight under Basel II. Assuming increasing cost of raising new capital when the requirement constraint is violated, this paper estimates the difference of unknown risk weight parameters between...

This paper empirically investigates how risk exposure of security holdings affected the optimal choice of total risk weighted asset under Basel II regulation. With costly recapitalization cost, banks optimally choose buffer regulatory capital above the minimum standard. Therefore, security...