Methods and systems for intermingling hetergeneous listing types when presenting search results

An e-commerce system, comprising:

• at least one processor;
• and
• a machine-readable medium in communication with the at least one processor, the machine readable medium storing a listing presentation management module that is executable by the at least one processor, the listing presentation management module being executed by the at least one processor to cause operations to be performed, the operations comprising:
• processing a query to identify item listings and product listings that satisfy the query;
• designating each listing slot in a search results page for use in displaying an item listing or a product listing that satisfies the query, the designation based on an analysis of demand data associated with each of the individual product listings and demand data indicating an aggregate level of demand for the item listings;
• displaying an item listing in each listing slot designated for use in displaying an item listing, the item listings presented relative to one another in an order that is based on a listing performance score assigned to each item listing;
• and
• displaying a product listing in each listing slot designated for use in displaying a product listing, the product listings presented relative to one another in an order based on a listing performance score assigned to each product listing.