As a result, such contributions affect household wealth but not household income. Private pension schemes and voluntary contributions to occupational pension schemes are usually more concentrated among higher income households, not least reflecting fiscal optimisation practices. Including such contributions among current transfers paid by households tends thus to reduce measured inequality. The reduction in the Gini coefficient has been estimated of around 1 percentage point for Denmark (Ministry of Economic Affairs and the Interior, 2015a).11 The implication is that the Danish definition reduces measured disposable income inequality compared to the OECD definition.