This article outlines the recommendations of the UK Pensions Commission, andthe data and analysis on which they were based, including projections ofdemographic change, trends in private pension saving, and evolution of the statepension system. The Commission concluded that without reform,...

This paper examines the decline of National Insurance in Britain, as witnessedby its declining share of all social security spending and the steady dilution ofthe “contributory principle” on which it was originally based. It argues that thisdecline is not an accident: under governments of...

The rational prodigality argument, which often serves to justify social security,is considered in a second-best tax framework with endogenous labor supply. Rationalprodigality renders the familiar policies time inconsistent. We analyze time consistentpolicies and show that a wage tax suffices to...

Pension benefit rules depend on individual history far more than taxes do, and age plays a much larger role in pension determination than in tax determination. Apart from some simulation studies, theoretical studies of optimal tax design typically contain neither a mandatory pension system nor...

This paper revisits the role played by myopia in generating a theoretical rationale for pay-as-you-go social security in dynamically efficient economies. Contrary to received wisdom, if the real interest rate is exogenously fixed, enough myopia may justify public pensions but never alongside...