EN
Although the WACC formula is well known to practitioners and theorists of finance, it appears that various techniques are requested by the literature to calculate the WACC, leading to different results. This paper reviews the literature dealing with company valuation and assessment of financial viability of investment and its intention is to summarise and structure the academics' views on calculating the weights used in the WACC. An essential trend in approaching this issue emerges from these views, which in some cases, however, in the author's opinion, leads to irrational financial decision-making.