Operations researchPublic schools--Economic aspectsOnline datingRidesharingEconomics--Mathematical modelsAlgorithms--DesignAffirmative action programs in educationNew York (N.Y.). Board of EducationNational Resident Matching Program (U.S.)

Operations researchCOVID-19 (Disease)Emergency medical servicesHospital patients--TransportationSimulation methodsColumbia UniversityNew York (N.Y.). Fire Department

Operations researchElectronic commerceConsumption (Economics)Consumers--Attitudes--ResearchSupply and demandSocial distanceCOVID-19 (Disease)--Social aspectsElevatorsQueuing theory

Operations researchQueuing theoryCall centersHospitals--Emergency servicesRidesharing--Mathematical modelsAsymptotic distribution (Probability theory)Chebyshev systems