All policies must align with the various integrative aspects of the natural philosophical concept of grace.
Tax penalties for businesses that cavalerely raise their prices without there being actual increased costs to justify them, and revenue incentives for businesses to maintain best competitive price or to cut prices. Tax penalties for dominating corporations who would use that dominance to cut prices to the point of endangerment of the existence of smaller competitors.
Strict enforcement of such penalties and unblinking enforcement of expulsion from the Discount/Rebate policy if an enterprise is a serial gamer/violator of the rules and regs