Anderson-Cook, Christine M. "Experimental and quasi-experimental designs for generalized causal inference." (2005): 708-708.

In decision-making analysis, especially within experimental or evaluative research settings, a "Do-Nothing Baseline" refers to a control scenario in which no intervention or new action is taken. This baseline is used to establish the effects and outcomes of inaction, providing a comparative measure against which the impacts of various interventions or decisions can be assessed.

The Do-Nothing Baseline is a critical reference point in experimental designs, helping stakeholders and decision-makers understand the implications of non-action and providing a clearer benchmark against which to measure the efficacy and necessity of different intervention choices.