“…However, less attention has been paid to the impact of ownership structure (concentration and main shareholder) on degree of business diversifi cation [13], [14], [16], [19], [30], [31], [63], [76]. Although some authors mention, in theoretical terms, the importance of concentration of ownership [2], [15], [30], [44] and the type of shareholder/s that effectively control the fi rm [19], [54] [55], [71], [75], in an analysis of business diversifi cation, very few studies have analyzed empirically said impact, with exceptions focusing on the US, European and Asian corporations [3], [11], [15], [19], [25], [27], [29], [40], [58], [50], [74]. The results found in the literature regarding corporate diversifi cation strategy are not conclusive, due to differences in the concept of diversifi cation and measurements used for its study [5], [49].…”