 The main areas of research on public policy are:%DIFDELCMD < %DIFDELCMD < %%% Public goods provision and distributive politics Social policy The welfare state Human rights Racial discrimination Environmental policy
<meaning-changed>  The main areas of research on public policy are:%DIFDELCMD < %DIFDELCMD < %%% Public goods provision and distributive politics Social policy The welfare state Human rights Racial discrimination Environmental policy
 The main areas of research on public policy are:%DIFDELCMD < %DIFDELCMD < %%% While many researchers, research regimes, and research institutions are identified according to the above categories or foci, it is not uncommon to claim geographic or country specialization as the differentiating category.