In this paper we introduce a sublinear conditional operator with respect to family of possibly nondominated probability measures in presence multiple ordered default times. way generalize the results Biagini and Zhang (2019), where reduced-form framework under model uncertainty for single time is developed. Moreover, use valuation credit portfolio derivatives uncertainty.

A Correction to this paper has been published: 10.1007/s40505-021-00211-1

We examine the introduction of the voluntary filing program (VFP) by the Securities and Exchange Commission (SEC) for the introduction of XBRL (eXtensible Business Reporting Language), or Interactive Data as called in the US. XBRL is a machine-readable standardized format for financial reports. The VFP allowed firms to file annual and quarterly reports using XBRL. This program represents a quas...

We review the renormalization group method applied to non-equilibrium dynamics by tracing the way how the hydrodynamic equations can be derived as reduced dynamics of the Boltzmann equation as a typical example.