








 (1) 
 (2) 
 (3) 
 (4) 








 (5) 
 (6) 
Algorithm  Ver.sion 1  Version 2  Version 3 
Average mean harmony  0..9473  1.3131  1.3180 
Standard error  0..0012  0.0408  0.0406 
Top of 95% confidence interval  0..9498  1.2314  1.2367 
Bottom of 95% confidence interval  0..9448  1.3948  1.3994 


Fig. 1 Run time against number of industries X axis = number of industries Y axis = run time in seconds Solid line M = 13, dotted line M = 25 
Fig. 2 Harmony on successive iterations X axis = iteration numbers Y axis = harmony 