Moreover, both the short-term and long-term unemployment rates underestimate the slack in the labor market caused by the significant and sustained decline in the labor-force participation rate (LFPR) since the recession began. In 2007, 66% of Americans were working or actively seeking work; today, that number stands at 63%, the lowest level since 1977.
此外，短期和长期失业率都低估了衰退开始以来劳动力参与率（LFPR）的剧烈而持久的下降对劳动力市场的冲击。2007年，66%的美国人有工作或者在积极寻找工作；如今，这一数字为63%，是1977年以来的最低值。