Policy is an overarching set of principles that guide decision making to meet specified ends. Typically, policies in government, businesses and other institutions manifest as the authority to direct resources to serve and achieve organizational priorities. National policies are useful to manage complex webs of laws, authorities and practices. Accordingly, national food policy would guide public investment in such a way that public good is maximized. Additionally, well-articulated policy would serve to prevent inconsistent government actions resulting from compartmentalized purviews over components of the agrifood system. Ideally, national food policy would enable coherent and coordinated management of the agrifood system as a whole.