Your value proposition is at the foundation of all your marketing efforts. It is that primary reason why your ideal prospect should buy from you rather than your competitors. Yet many marketers have never tested this crucial element of their marketing strategy; they have only assumed it, essentially building an empire on sand. However, according to Dr. Flint McGlaughlin, real-world testing is essential to determining the most effective value proposition, and there are five simple steps any marketer can take to identify their optimal value proposition.