+A good is **non rivalrous** when its consumption by one person does not diminish its availability for others. Think of shared knowledge or a [radio broadcast](/wiki/Radio_Broadcast) – countless individuals can enjoy it without depletion. This contrasts sharply with [rivalrous goods](/wiki/Rivalrous_Goods), where consumption is exclusive.
+## See also
+- [Public Good](/wiki/Public_Good)
+- [Excludability](/wiki/Excludability)
+- [Private Good](/wiki/Private_Good)