Private information and costly state verification often result in credit rationing in models with smooth investment, affecting both loan size and total investment. The optimal contract is derived in a dynamic stochastic growth model with capital for two types of models: one with symmetric...

This paper examines various models of the shortâ€term interest rate in Australia. The analysis centres on three classes of models. First, the generalised diffusion model of Chan et al. (1992) is examined which allows the variance to be a function of interest rate levels. This model nests a...