Gerdtham, Ulf-G; Johannesson, Magnus; Gunnarsson, Bo; … - In: PharmacoEconomics 13 (1998) 1 Part 1, pp. 71-80
Standard price indices may not account for the price decrease that results when patients switch to pharmaceutical products for which their demand-reservation price exceeds the price of the new product. In a similar way, standard price indices may not account for the price increase that results...