Contract terms that improve or reduce the likelihood of repayment of a debt should impact its price. That's basic economics. But what about a contract that is hundreds of pages long and has lengthy and complex terms that even the lawyers are unwilling to read? Believers in efficient markets...

We investigate the role of mutual trust in long-term vertical relationships involving trades of complex goods. High complexity is associated with high contract incompleteness and hence the increased relevance of trust-based relational contracts. Contrary to expectations, we find that changes in...