“…The Irrelevance thesis of Miller (1958, 1961) starts from the perfect market, which neglects taxes, illiquidity and considers capital structure changes as irrelevant for shareholders. These assumptions led to discussions regarding the inclusion of individual decisions and operational structural characteristics (Guserl & Pernsteiner, 2015& Staroßom, 2012. In the following, it is attempted, irrespective of these theories, to approximate an optimal capital structure.…”