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There was an error in the April 2010 issue of Industrial Relations (49:2) on page 302. Table 1 was incorrectly printed. The correct version of the table appears below. The publisher apologizes for this mistake.

Table 1.    Alternative Model Specifications: BP, WC, SC Cases
CaseEquationPredicted sign(s)
Best practice (BP)Performance = a + bHRMb > 0
Weak contingency (WC)Performance = a + bHRM + dContingencyb > 0, d < or > 0
Strong contingency (SC)Performance = a + bHRM + cHRM2b < or > 0 or = 0; if b > 0,then c < 0 and 0 < −b/2c < HPWS (interior solution)