Analytic Models of the ROC Curve: Applications to Credit Rating Model Validation

In this paper, the authors use the concept of the population ROC curve to build analytic models of ROC curves. Information about the population properties can be used to gain greater accuracy of estimation relative to the non-parametric methods currently in vogue. If used properly this is particularly helpful in some situations where the number of sick loans is rather small; a situation frequently met in periods of benign macro-economic background.validation; credit analysis; rating model; ROC; Basel II

Modeling Demand for ESG

Existing approaches have considered characteristics of Environmental, Social and Corporate Governance (ESG) focused investments from a return-oriented perspective without paying due consideration to investors’ utility and how ESG features impact utility. We contribute to this literature by providing a model that captures the implications for investment if ESG is valued by the investor as well as wealth. We first present the necessary theory and discuss the rather challenging problem of calibration of the various risk and preference parameters. Using Thomson Reuters ESG data from 2002 to 2018, we provide further empirical evidence that investors who value ESG factors have improved utility which does not come at the cost of return performance