English language learners (ELLs) are increasingly placed in classes with mainstream teachers lacking training and experience to teach diverse populations. Rural areas are being characterized by a growing number of ELLs, challenges to attract and retain qualified educators, and budgetary...

Purpose This paper aims to provide an overview, a classification of existing research groups for correlated default models using a reduced-form method and an identification of future research opportunities in the field. Design/methodology/approach A systematic literature review is used for the...