RSD-2: Why Are Illiquid Minority Values Always (Almost) Lower Than Marketable Minority Values?

This post addresses the question of why illiquid minority interests are almost always lower than the marketable minority values of underlying companies. The answer is rooted in valuation theory and has nothing to do with the existence of restricted stock discounts. The question is addressed in light of business valuation theory and, yes, in light of the Integrated Theory.