Many centralized matching markets are preceded by interviews between participants, including the residency matches between doctors and hospitals. Due to the COVID-19 pandemic, interviews in the National Resident Matching Program were switched to a virtual format, which resulted in a dramatic and...

When groups of schools within a single district run their admission processes independently of one another, the resulting match is often inefficient: many children are left unmatched and seats are left unfilled. We study the problem of re-matching students to take advantage of these empty seats...