برند بهعنوان یکی از مهمترین داراییهای ناملموس شرکت، نقش مهمی در ارزش کلی شرکت ایفا میکند. ارزش برند، تأثیر مهمی بر فروش و درنهایت بر سودآوری شرکت دارد. هدف پژوهش حاضر بررسی میزان توضیح دهندگی تأثیر ارزش برند بر بازدهی غیرنرمال سهام است. اثر تعدیلگری دو متغیر نسبت خالص جریان نقدی و حاشیه سود خالص بر رابطه بین ارزش برند و بازده غیرعادی سهام نیز بررسی میشود. معیار کیو-توبین برای محاسبه ارزش برند استفاده بهکار رفت. نمونه پژوهش را شرکتهای تولیدی کاشی و سرامیک عضو سازمان «بورس و اوراق بهادار ایران» بین سالهای 1381 تا 1393 تشکیل میدهد. برای آزمون فرضیهها در قالب دادههای تابلویی از نرمافزار EVIEWS استفاده شد. نتایج نشاندهنده تأثیر مثبت و معنادار تغییر ارزش برند بر بازده غیرعادی سهام است. تغییر ارزش برند برای شرکتهایی با نسبت خالص جریان نقدی بیشتر و حاشیه سود خالص کمتر، اثر قویتری بر بازده غیرعادی سهام دارد. اثر همزمان دو متغیر تبدیلگر پژوهش، اثر ضعیفی بر تأثیر تغییر ارزش برند بر بازده غیرعادی سهام دارد.
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