Knowledge about how elderly workers react to changes in pension benefits is important in guiding the design of social security systems. This paper contributes to this knowledge by examining the effect of changed replacement rates on part-time retirement behaviour in Sweden. During the 1980s,...

Norwegian administrative data are used to evaluate the impact of a doubling of the threshold in the retirement earnings test. We find almost no impact on the extensive margin, but a positive effect on the intensive margin. This positive effect is uneven over the earnings distribution, and...

We estimate a model of labour supply and participation in multiple cash and in-kind welfare programmes. The modeling exploits a reform that affected U.K. single mothers. In-work cash entitlements increased under this reform but eligibility to in-kind child nutrition programmes was lost for some...

We study re-entry to the workforce of fully retired persons, so-called unretirement, and whether the decision to resume work depends primarily on social or economic reasons. Using Swedish register data for already retired individuals older than 55, we find unretirement to vary between 6 and 14...

We use a rapid introduction of an unconditional cash grant (child support) in South Africa to estimate the marginal propensity to consume and earn out of a permanent change in unearned income. We find that the marginal propensity to earn is about to -0.25 for single-adult households, and...

Löhne und gesetzliche Rentenansprüche sind über das Sozialversicherungssystem direkt miteinander verbunden. In dieser Dissertationsschrift werden zunächst Lohnrisiken analysiert, um dann das Altersarmutsrisiko in Deutschland aufzuzeigen. Nach einer Einführung werden in Kapitel 2 die...

The retirement decision is under researched in developing and emerging countries, despite the topic's close relation to many development issues such as poverty reduction and social security, and despite the fact that population ageing will increasingly challenge the developing world. This paper...

The Swedish pension reform of 1999-2003 provides an opportunity to study whether and how important economic incentives are for the timing of retirement. The new pension system provides a much closer link between contributions and benefits than the former system. I study whether the reform has...