jobs.def u hwi 24 quarterly observations on HWI and U over the period 1962-67. u = level of unemployment hwi = a help-wanted index which measures the level of advertising for new employee Data source: Lott and Ray (1992) Variable | Obs Mean Std. Dev. Min Max -------------+-------------------------------------------------------- u | 24 4.783333 .7960865 3.63 5.83 hwi | 24 142.1175 37.43107 95.96 193.33