The EARN Theory of Well-Being includes a practical model for ascertaining and analyzing the well-being of individuals or groups; in its most recent iteration, EARN Theory includes insights from Lang's Network Theory of Well-Being, Revamped, which states that well-being is a matter of instantiating a holistically authentic positive causal network. Both EARN Theory and the Network Theory of Well-Being, Revamped are informed by the science of well-being and guided by a sense of justice. Presented as an inference to the best (...) explanation, the argument for EARN Theory is naturalistic while also inclusive of existential and moral considerations. EARN Theory gives us something to strive for where our well-being is concerned, and it helps us to articulate personal and societal reasons that our well-being gets derailed or diminished at times. EARN Theory has numerous practical applications, including philosophy-based consulting, self-help endeavors, and public policy reform that promotes a renewed notion of justice. (shrink)