Disclosed are methods for managing inventory in e-commerce. A method may be provided that may include segmenting a quantity of a specific product in inventory into a plurality of inventory leases having a smaller quantity of the specific product. A lease management server may distribute at least one inventory lease. At least one of the specific products may be selected by the inventory management server for reservation. A rate of selection of the specific products from each of the respective inventory leases may be determined. The determined rate of selection may be analyzed to determine when the quantity in the respective inventory lease will reach a minimum quantity in the respective inventory lease. An indication of when a request for a new inventory lease is to be sent to the lease manager server may be provided.