22 monthly labor review september 1999 hedonic methods adjusting vcr prices for quality change a study using rapidly changing consumer electronic goods present particular difficulties when compiling constant cpi are used to adjust price video cassette recorders paul r liegey and nicole shepler economists in the division of indexes bureau statistics re there any low hanging fruit or bene fits be harvested from use he donic cas sette recorder 1 according de cember 1996 final report advisory com mission index an upward bias 0 6 percent per year is attributable unmeasured new 2 estimate biases attributed qual ity products divided s market basket set all services into 27 major cat egories category that contributed most was ap pliances including electronics ponent