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The Labor Force Participation rate fell to 62.7% from 62.9%.
The Employment/Population Ratio remained unchanged at 59.2%.
The contribution of these two factors to the Unemployment Rate is shown in the chart below.
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UR = (LR – ER) / LR
Where LR is the Labor Force Participation Rate, and ER is the Employment Ratio.
Note how a decrease in the participation rate on its own, reduces the unemployment rate: The number of available workers drops, and thus there are relatively fewer unemployed – even in the absence of job growth. This is what has happened in the recovery since the “Great Recession”.

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More detailed Labor Force Participation Charts and Employment Ratio Charts
U.S. Unemployment Rate. Seasonally Adjusted. | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Total | Labor Force Mlns | Rate (%) | Monthly Change (%pts) | Year/Year Change (%pts) | ||||||||
Dec. 2013 | Dec. 2014 | Dec. 2013 | Oct. 2014 | Nov. 2014 | Dec. 2014 | Oct. 2014 | Nov. 2014 | Dec. 2014 | Oct. 2014 | Nov. 2014 | Dec. 2014 | |
All Ages (16+) | 155.0 | 156.1 | 6.7 | 5.7 | 5.8 | 5.6 | -0.2 | 0.1 | -0.2 | -1.5 | -1.2 | -1.1 |
16 to 19 years | 5.6 | 5.7 | 20.4 | 18.7 | 17.5 | 16.8 | -1.1 | -1.2 | -0.7 | -3.5 | -3.4 | -3.6 |
20 to 24 years | 15.6 | 15.5 | 11.1 | 10.5 | 10.9 | 10.8 | -1.0 | 0.4 | -0.1 | -1.9 | -0.8 | -0.3 |
25 years and over | 133.8 | 134.9 | 5.6 | 4.7 | 4.7 | 4.5 | 0.0 | 0.0 | -0.2 | -1.3 | -1.1 | -1.1 |
25 to 34 years | 33.9 | 34.4 | 7.0 | 6.2 | 6.1 | 5.9 | 0.0 | -0.1 | -0.2 | -1.0 | -1.3 | -1.1 |
35 to 44 years | 32.5 | 32.4 | 5.4 | 4.4 | 4.3 | 4.3 | 0.0 | -0.1 | 0.0 | -1.3 | -1.4 | -1.1 |
45 to 54 years | 34.1 | 34.0 | 5.1 | 4.0 | 4.1 | 4.0 | -0.1 | 0.1 | -0.1 | -1.9 | -1.3 | -1.1 |
55 years and over | 33.3 | 34.2 | 5.1 | 4.1 | 4.5 | 3.9 | 0.2 | 0.4 | -0.6 | -1.4 | -0.4 | -1.2 |