Friday, October 5, 2012

BLS Numbers

All of the talk today has been over the recent unemployment numbers. The unemployment rate fell from 8.1% to 7.8% and employment increased by 873,000. With these numbers came the conspiracies (google Jack Welch). Without going into a lot of details about the conspiracies, I'm going to post two graphs that will hopefully end this debate. Here is the first graph that simply compares month-to-month change in employment reported by the household survey. 


First thing one is likely to notice is the considerable noise in the data. The next thing you will likely notice is the spike that occurred in January of 2000. During this month the economy added 2 million jobs. In fact you will likely notice that April of 1960 and January of 1990 also included large spikes in employment. In 2012 there were two employment spikes, the first in February (went largely unnoticed) and then in September. The economy added 847,000 and 873,000 jobs, respectively. These number also compared to those posted in 1983. In June of 1983 the economy added 991,000 jobs and the May of 1984 added another 857,000. Both 2012 and 1983-4 are very similar in that they follow large periods of declines in the employment numbers. 

Here is a table showing the months with the most change in employment levels:

Month Change in Employment
2000-01-01 2036
1960-04-01 1286
1990-01-01 1251
1983-06-01 991
2003-01-01 991
1948-06-01 889
2012-09-01 873
1984-05-01 857
1950-04-01 855
2012-01-01 847
1959-12-01 811
1950-08-01 796
1973-02-01 751

In the second graph, we are simply looking at the percent change in the employment numbers relative to the previous month. Here we see that the two months in 2012 saw employment increase by a little more than 0.6%. Relative to history, there are 48 months in the last 65 years that had a faster growth in the employment numbers. Compared to 1983 these numbers are considerably lower. In 1983-4 the two months added employment at rates of 0.82% and 1%. Conspiracy? Doubtful.

                          

Month % Change in Employment
1960-04-01 1.988465047
1948-06-01 1.536626681
2000-01-01 1.513495833
1950-04-01 1.481083703
1950-08-01 1.349129676
1949-11-01 1.292147584
1959-12-01 1.256779792
1951-03-01 1.240341261
1952-09-01 1.222612477
1955-07-01 1.184830288
1951-12-01 1.104686142
1948-04-01 1.075063724
1954-02-01 1.06457417
1990-01-01 1.061699058
1953-01-01 1.059815599
1955-01-01 1.059618072
1952-11-01 1.024412958
1983-06-01 0.994560527
1957-02-01 0.982210209
1959-03-01 0.915457572
1955-04-01 0.903812086
1973-02-01 0.903067544
1951-07-01 0.899027172
1964-04-01 0.862382386
1976-01-01 0.848093233
1961-06-01 0.831181531
1984-05-01 0.821384757
1959-04-01 0.779560272
1977-11-01 0.761939561
1962-08-01 0.729509799
1960-11-01 0.72677962
2003-01-01 0.726401126
1968-05-01 0.722594989
1954-09-01 0.716756052
1953-06-01 0.716170373
1968-02-01 0.708165997
1971-07-01 0.695811166
1950-06-01 0.687138741
1969-02-01 0.679643252
1983-11-01 0.676212037
1955-12-01 0.675024108
1978-04-01 0.674370746
1962-02-01 0.650450778
1973-03-01 0.643531319
1973-06-01 0.634391834
1975-07-01 0.631480288
1964-02-01 0.620545319
1986-01-01 0.620056184
2012-09-01 0.614351764
1965-07-01 0.612460401
1972-01-01 0.606429645
1969-06-01 0.604557433
1984-02-01 0.603676321
1967-04-01 0.603221721
2012-01-01 0.601605228

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