“…According to literature, there were seven proxy variables suggested to measure agency costs: They are total asset turnover [25]; Singh and Davidson [26]), operating expense to sales ratio [25], administrative expense to sales ratio [26], earnings volatility, advertising and R & D expense to sales ratio, floatation cost (Crutchley and Hansen [22]), and free cash flows [7,8]. Therefore, the paper also intended to empirically test which proxy variable would better serve as the measurement of agency costs.…”