Abstract
The purpose of this article is to construct a loss given default (LGD) estimation model which can discriminate LGD from different characteristics of obligation and collateral, and to offer a reference model for bank that will adopt Advance Internal Rating Based Approach to determine capital requirement of credit risk. This article is based on structured model to construct three different kinds of LGD estimation model which including the loan has no collateral, collateral value is constant and collateral value is stochastic. Specific to the model that concern collateral value is stochastic can take into account the correlation between collateral value and firm’s value, the volatility of collateral value and the volatility of assets value. In empirical analysis we find that the correlation between collateral value and firm’s assets value has significant effect on LGD. Under the same PD, higher correlation between collateral value and firm’s assets value resulting higher LGD. The liquidity of collateral is also an important factor that effect LGD. If the liquidity of collateral is low, it is more difficult to sell collateral to third party and will increase LGD.