We study a multiplicative randomized response method for obtaining responses to sensitive
questions when the answers are quantitative. The method involves the respondent …

Presents information on a study which described the use of prepayment models in the
mortgage market. Classification of prepayments; How the modeling framework deals with them …

The loss severity model, combined with prepayment and default models, can be used to
project loss-adjusted cash flows for mortgage pools and deals. In addition, the loss model can …

Mortgage defaults are involuntary prepayments caused by the liquidation of loans following
delinquency and foreclosure. Default projections are required for projecting loss-adjusted …

Sequential tests for deciding which of two normal means is larger are considered in situations,
such as clinical trials, where it is desirable to reduce the number of observations made on …

Mortgage backed securities (MBS) have embedded options that are dependent on the
primary mortgage rate, since this is what homeowners use to make their exercise decision. In …

We consider the problem of sequentially deciding which of two treatments is superior, A class
of simple approximate sequential tests is proposed. These have the probabilities of correct …

Asymptotically optimal sequential procedures are proposed for fixed width interval and for
point estimation of the log odds ratio for two Bernoulli populations. The costs of observations …

In applications of sequential methods, it is often advantageous from a practical point of view
to sample in bulk, or groups, rather than one at a time. We propose and study two adaptive …

A system deteriorates stochastically over time. When the deterioration reaches a critical level,
the system has to be either repaired or replaced by a new one. Repairs are generally both …