title: PPB
text: # PPB
  
  PPB can stand for:
  
  * Production possibility boundary , a concept in economics
  * Parts per billion, describing small values of miscellaneous dimensionless quantities
  * Portland Police Bureau, in Portland, Oregon, U.S.
  * Partido Progressista Brasileiro, former name of Progressive Party of Brazil
  * Pleuropulmonary blastoma, a type of lung cancer
  * PPB Group, a Malaysian company
  