Sentence:  With a relatively inelastic IS curve and a relatively elastic LM curve Keynesianism became synonymous with <WSD>'fiscalism</WSD>' and policies to fine tune the macroeconomy. 
Meaning of the word marked with <WSD> tags:  The belief that fiscal policy should function as the primary macroeconomic stabiliser (e.g. for controlling inflation), often associated with the (IS–LM model).