arbitration vs mediation

arbitration

noun
  • A process through which two or more parties use an arbitrator or arbiter in order to resolve a dispute. 

  • In general, a form of justice where both parties designate a person whose ruling they will accept formally. More specifically in Market Anarchist (market anarchy) theory, arbitration designates the process by which two agencies pre-negotiate a set of common rules in anticipation of cases where a customer from each agency is involved in a dispute. 

  • The act or process of arbitrating. 

mediation

noun
  • Negotiation to resolve differences conducted by an impartial party. 

  • The act of intervening for the purpose of bringing about a settlement. 

  • heritage interpretation 

How often have the words arbitration and mediation occurred in a corpus of books? (source: Google Ngram Viewer )