Complex Systems: Errata and Changes

The inequ ality in the sentence in the middle of page 534 should be reversed to read "In t he single-out put version unit i was accepted as a candidate for flipping if the condition WiSiS > 0 was sa t isfied ." Sinc e our comput er codes did not contain these erro rs, no ne of our published results needs to be modified. We would also like t o acknowledge useful discussion s wit h S. Barkan and D. Saad , and the partial support of this resear ch by a grant from Minerva.