The difference between basic prices and final prices (those used in the expenditure calculation) is the total taxes and subsidies that the government has levied or paid on that production.
As he notes, drug companies can, in theory, benefit from significantly higher basic prices while waiving patients' payments, if those waived payments are smaller than the overall price increases.
Knowing there are 17 other restaurants on board, most of which are included in the basic price, simply made me resolve to try something different next time.
It found that drip-pricing, where additional charges are added to a basic price as the sales process progresses, and time-limited offers cause most harm to consumers.