The origin of the "deviances" of contemporary capitalism

The demand for an abnormally high return on capital for shareholders is the cause of the various "deviations" or anomalies of contemporary capitalism in OECD countries: Corporate concentration, which gives companies dominant positions and oligopoly rents; The decline in employees’ bargaining power in the labour market and the skewing of income distribution at the expense of wages; Companies’ use of debt leverage and share buybacks to increase the return on equity; The weak response of investment to low interest rates, which has maintained a markedly higher return on physical capital than interest rates; And, objectively also, the taxation of debt lenders due to the very low interest rates (and the "complicity" of central banks). The only positive consequence of this search for an abnormally high return on capital is an incentive to innovate and to seek innovation rents, but it is not certain that it really plays a role since productivity gains have slowed.