# 4.1 Introduction For the purpose of clarity, we will from now on refer to the network’s stable credit as RSD and focus on its specific token economics. Please be reminded that RSD is the stable credit arising from the ReSource Network. Other mutual credit systems built on top of the ReSource Protocol may design different stable credits with a variety of soft and/or hard pegging mechanisms. While all transactions between members are settled in RSD, transaction fees are settled in SOURCE, the Protocol’s governance and utility token. These SOURCE payments serve as the basis for SOURCE reward paid out to Ambassador, Underwriter and **RSD savers** (see chapter 4.3). As we’ll see below, RSD deployed into savings plans, in conjunction with SOURCE stakes provided by Underwriters and Ambassadors, serve as the basis for the network’s currency stabilization mechanism and its insurance against defaults. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://resource-network.gitbook.io/resource-technical/04-monetary-flow-reserves-default-insurance/4.1-introduction.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.