By strengthening work incentives, its employment impact is likely to be positive. Although the introduction of such a scheme would raise public expenditures, it could be a comparatively efficient way of reducing inequality without reducing employment. Against this background, potential savings that could be made in other areas, such as aligning the duration of unemployment benefits for older workers to that of young workers, might be better invested in earned income tax credits. Separate public and private sector pension systems have been unified for those who joined the labour force as of 2006, but remain separate for most current workers and pensioners.