An update to the Elliot Wave Principle that corrects a fundamental errorThe Elliot Wave Principle has been widely adopted as a tool for traders analyzing market cycles, but Ian Copsey has unearthed a fundamental error in the way it defines the structural development of price behavior. Harmonic Elliott Wave: The Case for Modification of R. N. Elliott's Impulsive Wave Structure explains what's wrong with the Principle, outlining a modification that allows fo...