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THE JOURNAL OF ECONOMIC SCIENCES: THEORY AND PRACTICE




               single  company  could  be  allowed  to  duplicate  the  database  and  sell  the

               information on the market. The legal monopoly  that the company  enjoyed
               could therefore be interpreted as imposing a duty to deal with everyone.

                     Evaluating  the  effects  of  business  practiced  on  competition  and

               efficiency.  In  abuse  of  dominance  or  monopoly  cases  it  is  important  to
               ensure  that  the  law  does  not  inadvertently  curb  superior  efficiency  or

               adoption  of  efficient  business  practices.  Firms  may  achieve  a  dominant
               position through methods that are perfectly legitimate (through innovation,

               adoption  of  superior  production  or  distribution  methods,  or  greater
               entrepreneurial  efforts).  Moreover,  many  practices  that  appear  to  be  anti-

               competitive  (vertical  market  restraints,  such  as  tying  or  exclusive  dealing

               requirements) can serve legitimate procompetitive purposes.
                    Determining whether these practices are, in fact, pro- or anticompetitive is a

               question  that  should  normally  be  resolved  on  a  case-by-case  basis.  This  will

               involve  reviewing  the  full  implication  of  evidence  and  findings  of  fact  estab-
               lishing  that  firms  occupy  a  dominant  position  and  have  engaged  in

               anticompetitive actions. Thus a firm under investigation may have a high market
               share, and there may be substantial barriers to entry that would normally support a

               finding of dominance. Before reaching a final decision, however, the competition
               authority should consider alternative explanations for structural dominance, such

               as whether an industry has the characteristics of a natural monopoly. Furthermore,

               an absence of multiple, independent suppliers in a market at any given time does
               not necessarily imply that competition has been suppressed, if there are minimal

               barriers  to  entry  and  evidence  indicates  that  the  market  position  of  individual
               firms has shifted over time. Rather, it may be that competition within the market

               has been supplanted by potential competition.
                     The  views  of  affected  consumers  are  essential  in  an  analysis  of  the

               impact of business practices. The issue to be resolved in abuse cases (as in



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