extending a conservation law to transactions connects an economy to the natural, physical universe

modeling an economy the same way the universe models human activity protects the public from philosophical descriptions of the simple mechanical action connecting consumption with production

the public is also entitled to facts such as the most competitive price—including the minimal return expected of an asset as computed from historical transaction data, and not from publicly appointed committees (dictating lending rates distorts and destabilizes other rates)

benchmarking the risk free rate on the average return of equity guards investors from the absence of empirical evidence when judging the opportunity cost of capital