What factors Influence how long Frictional Unemployment is?

-During a Boom, Vacancies is Higher - Easier to find a Job. -During a Slump, the Opposite happens -Juicy Welfare Benefits means People may not Look for a New Job, or can take their Time in finding a New Job -Information Provision can mean People know, or won't know, the Type and Quality Jobs out there -Occupational and Geographical Immobility