Criando valor para o acionista através da certifica？？o ISO 14000: Um estudo múltiplo de casos

the purpose of this paper was to verify the impact of iso 14000 certification in creating shareholder value in brazilian public companies. the indicator total shareholder return (tsr) was used to measure the creation of shareholder value. several authors consider it the best indicator of the creation of shareholder value. the ibovespa index stock exchange (bovespa) was used as benchmark. it was found that three of the four companies studied increased creation of shareholder value after the certificate iso 14000.