“…This does not, however, directly address what the level of reward ought to be as it implicitly assumes that the period of IPP is already optimal. Others have considered the global dynamics of pharmaceutical pricing, the implications of price controls and the implications of strengthening IPP, all from a similar perspective (Bennato & Giulietti, 2019; Chu, 2008; Council of Economic Advisers, 2019; Egan & Philipson, 2013; Filson, 2012; Gigi, Emma van, Jennifer, & Jeffrey, 2017; Goldman et al., 2011; Lakdawalla et al., 2008; Santerre & Vernon, 2006). Some have argued that it is evidence of the health opportunity cost associated with health care expenditure, rather than individual willingness to pay, that represents the maximum price that health care systems can afford to pay for the benefits of an innovation during IPP, while acknowledging that this is only dynamically efficient if the period of IPP is already considered optimal (Claxton, 2007; Claxton et al., 2008).…”