Lloyd, T.A.; Morgan, C.W.; McCorriston, S.; Zgovu, E. - School of Economics, University of Nottingham
) sales are a key feature of aggregate price variation with around 40 per cent of price variation being accounted for by sales … considerable heterogeneity in the use of sales across retailers; (iii) much of the price variation that is observed in the UK food … retailing sector is accounted for by price differences between retailers; (iv) only a small proportion of price variation that …