METHOD AND SYSTEM FOR CREATIVE COLLABORATIVE MARKETPLACES

In an embodiment, a method of conducting a multi-level transaction includes receiving a primary call for proposals, receiving one or more primary bids by a computing system with respect to the primary call for proposals, receiving one or more secondary calls for proposals for each primary bid, receiving one or more secondary bids by a computing system with respect to the one or more secondary calls for proposals, automatically determining an estimate of a trustworthiness rating for each primary bid, receiving the selection of a primary bid based on the estimates of the trustworthiness rating, and displaying the selection of the primary bid. Each secondary call for proposals includes a job request associated with the primary bid. The estimate of the trustworthiness rating is based on a trustworthiness rating associated with the primary bid and one or more secondary bid trustworthiness ratings.