++++ 1.Competition - Agreements, decisions and concerted practices - Agreements between undertakings - Concept - Commercial practice of a supplier forming part of a general agreement between him and his customers ( EEC Treaty, Art . 85(1 ) ) 2.Competition - Agreements, decisions and concerted practices - Agreements between undertakings - Concept - Expression of the parties' intention - Sufficient condition ( EEC Treaty, Art . 85 ) 3.Competition - Agreements, decisions and concerted practices - Anti-competitive conduct - Criteria for assessment - Anti-competitive purpose - Sufficient ( EEC Treaty, Art . 85(1 ) ) 4.Competition - Fines - Amount - Determination - Criteria ( Council Regulation No 17, Art . 15(2 ) )