The theory of antimarket behavior proposes that economic behavior to escape or control market competition is a normal part of free enterprise. The most common state of economic competition in the modern economy reflects both market and antimarket forces. A better general economic model must include these dynamics, and normative economics must recognize the welfare implications of innovation and variety engendered by the ability to escape market forces. The theory of antimarket economics is supported with evidence from current events, expectations and information theory, public choice, and institutional, environmental and other economic fields.