搜索结果: 1-2 共查到“劳动统计学 seasonal”相关记录2条 . 查询时间(0.281 秒)
Employment changes in construction：secular, cyclical, seasonal
Employment changes Construction employment seasonal
2009/6/4
Construction employment growth roughly paralleled that of total employment during 1950-80; but, compared with the total economy, the demand for labor takes longer to recover from recessions.
Seasonal employment falls over past three decades
Seasonal employment falls private industry demographic groups
2009/5/7
Seasonal employment declined markedly from 1960 to 1990, a trend that was widespread throughout private industry and demographic groups. Some of the reasons for a less seasonal workplace are changing ...