# Typical Service - PLO Liquidity

Bifrost, as a parachain in the Polkadot ecosystem, does a great job in the Staking business in the whole ecosystem, and at the same time provides basic support tools for DeFi economic models with a high degree of similarity with Staking, contributing to the healthy development of the whole ecosystem. PLO (Parachain Lease Offering) is one of the key economic models of the Polkadot ecosystem, which is very comparable and similar to the Staking of PoS, and the interaction process between an PLO directly and an IPO through Bifrost is compared as follows:

Figure 1: Original PLO Interactive Procedures
Figure 2: Bifrost PLO Interactive Procedures