1. bsvarSIGNs::monetary
    A 6-variable US monetary policy data, from 1965 Jan to 2007 Aug
    csv| json| rda| rds
    mts|515 x 6
  2. bsvarSIGNs::optimism
    A 5-variable US business cycle data, from 1955 Q1 to 2004 Q4
    csv| json| rda| rds
    mts|224 x 5