14 We also estimated the model dropping companies audited by the non-Big 6 firm, KWTF, reducing the sample to 241 companies. Both Big 6 auditor variables were still significant and had com[arable coefficients to those in Table 4. The purpose of the analysis was to ascertain that the systematically lower audit fees of KWTF do no drive the Big 6 premia for brand name and industry specialization. See also Table7.