Analyzing Managerial Decisions: eBay.com”

How does Ebay Create Value
What potential contracting problems exist on Ebay
How does eBay address these problems
What are the contracting cost at eBay
eBay claims that it only has a small problem with fraud and misuse of the system. Does this imply that it is over investing in addressing potential contracting problems? Underinvesting? Explain.