In early cases, it was easier for plaintiffs to show market relationship, or dominance, by tailoring market definition, even if it ignored fundamental principles of economics. In "U.S. v. Grinnell", 384 U.S. 563 (1966), the trial judge, Charles Wyzanski, composed the market only of alarm companies with services in every state, tailoring out any local competitors; the defendant stood alone in this market, but had the court added up the entire national market, it would have had a much smaller share of the national market for alarm services that the court purportedly used. The appellate courts affirmed this finding; however, today, an appellate court would likely find this definition to be flawed. Modern courts use a more sophisticated market definition that does not permit as manipulative a definition.