In response to the demographic challenges and fiscal constraints, many European welfare states have moved toward the privatization and marketization of pensions in order to improve their financial sustainability. The privatization of retirement income responsibility has led to a shift from dominantly public pensions to a multi-pillar architecture with growing private pillars composed of personal, firm-based, or collectively negotiated pension arrangements. At the same time, marketization has led to the introduction and expansion of prefunded pension savings based on financial investments as well as stronger reliance of market-logic principles in the remaining public pay-as-you-go (PAYG) pensions. However, there are also important cross-nati...