This paper illustrates how the classical theory of economic policy can profitably be used to verify some properties of the Linear Nash Feedback Equilibrium in difference LQ-games. In particular. we find that both a necessary condition for the equilibrium existence and a sufficient condition for policy ineffectiveness can be defined in the terms of the simple Tinbergen counting rule. https://www.diegojavierfares.com/mega-save-8-tall-Faux-Crystal-Beaded-Candle-Holder-Centerpiece-great-buy/