This issue of the journal brings together five contributions devoted to comparing standards of living depending on age and generation : methodological contributions relating to equivalence scales and to the econometrics of pseudopanels ; the initial results for France of National Transfer Accounts (NTA) that break down National Accounts aggregates on the basis of age ; and comparisons of pension entitlements between public and private sector employees. We return to four of the questions they raise. The first is the issue of separating age, period, and cohort effects : how it is conducted should depend on the question asked. We then advocate a plural approach to intergenerational inequalities, consisting in looking at them from several compl...