:::: I might say that if it's Keynesian, it's fringe and contradicted by reliable sources, but that would be my opinion and, since I am not a "notable economist," everyone else would be justified in considering such a claim laughable. 

 :::: My reply to Lawrencekhoo (and to which I'd like to hear others' replies, since I am not willing to accept only Lawrencekhoo's judgment) remains: [although Hazlitt may not be included "in any history of economic thought textbook that I know of"], does the fact the Hazlitt wrote a textbook that has sold over a million copies count? I would consider Paul Samuelson to be a "noted economist  despite being a Keynesian  on that basis, so I would hope the same principle would apply to Hazlitt, a student of the Austrian School.