First and foremost, within existing programs and when proposing new ones, the aid community should adhere to the strict economic definition and avoid the temptation to use the GPG 'tag' as a general-purpose fund-raiser. If we focus GPG logic on those goods and services where global collective action really is needed, that action is more likely to be achieved. Where humanitarian grounds, not rational self interest, are the main motivation for action -as in providing subsidized treatment for AIDS sufferers in poor countries -we should say so without equivocation. Where general health system strengthening is required to guarantee access to GPGs such as immunization or tuberculosis control, this should be stated explicitly, even if it means that budgets for GPG provision strictly defined may be reduced as a result.