and although women s labour market participation is increasing among younger cohorts long vesting periods will continue to limit women s access to retirement benefits for some time if no adequate instruments exist to compensate for periods of time dedicated to unpaid work this was common in the structural pension reforms in latin america dion in argentina after contributory requirements to obtain a pension were increased to years coverage rates of the elderly population aged and over declined from to per cent for men and from to per cent for women between and rofman et al