Monopolistic competition and consumer information: pricing in the market for psychologists' services.
D002391:Catchment Area, Health / Q000191:economics*; D003256:Community Participation / Q000191:economics*; D004465:Economic Competition; D005251:Fees, Medical; D006801:Humans; D015233:Models, Statistical; D011586:Psychology, Clinical / Q000191:economics*; D011613:Psychotherapy / Q000191:economics*; D012044:Regression Analysis; D014481:United States