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Table 4 Johansen cointegration tests for unemployment rates in the U.S

From: The impact of the coronavirus on African American unemployment: lessons from history

Max Rank Parameters LL Trace 5% Critical
Panel A. Full sample period
 0 30 − 113.10 27.685* 29.68
 1 35 − 101.92 5.32 15.41
 2 38 − 100.16 1.81 3.76
Panel B. Pre 9/11 Subsample Period
 0 30 − 48.565 27.437* 29.68
 1 35 − 39.951 10.208 15.41
 2 38 − 34.847 0.442 3.76
Panel C. Post 9/11 Subsample Period
 0 30 4.507 44.521 29.68
 1 35 18.468 16.598 15.41
 2 38 24.983 3.567* 3.76
 3 39 26.767   
Panel D. Pre 2008 Crisis Subsample Period
 0 30 − 6.583 28.523* 29.68
 1 35 2.209 10.944 15.41
 2 38 7054 1.254 3.76
 3 39 7.681   
Panel E. Post 2008 Crisis Subsample Period
 0 30 − 6.583 28.523* 29.68
 1 35 2.209 10.944 15.41
 2 38 7054 1.254 3.76
 3 39 7.681