In Bolivia (Plurinational State of), following pension reform in 2010, mothers can also benefit from a contributory credit equivalent to one year of contributions per child, up to a maximum of three years. Women can use this credit either to get better benefits from the solidarity pillar or to anticipate retirement (ibid.). Some countries that do not have contribution credits can achieve similar results with other gender equality-enhancing elements in pension design, such as short vesting periods and progressive benefit formulas.