A very interesting and well-conducted experiment, although I wish they didnt have the limitations they had (no lowering beyond the current 9% rate of discount;

A very interesting and well-conducted experiment, although I wish they didnt have the limitations they had (no lowering beyond the current 9% rate of discount; no price changes in the < 100 bars quantities; less so - no two-part tariff group). I'd very much like to see more like it.