UNIVERSITY OF MICHIGAN JOHN M. OLIN CENTER FOR LAW & ECONOMICS THE CREDIBILITY OF THREATS TO BREACH OREN BAR-GILL OMRI BEN-S HAHAR WORKING PAPER #02-017 THIS PAPER CAN BE DOWNLOADED WITHOUT CHARGE AT: MICHIGAN JOHN M. OLIN CENTER WEBSITE HTTP :// WWW.LAW .UMICH. EDU/ CENTERSANDPROGRAMS / OLIN/ PAPERS .HTM Social Science Research Network: http://ssrn.com/abstract_id= 349541