We consider recent trends in pension policies in OECD countries in light of demographic aging associated with welfare regime type (Liberal, Social Democratic, Continental, and Southern European). These regime types represent different responsibilities assumed for social security on the part of the market, the state, and the family. While there are significant differences in labor market characteristics, the demographic similarities in aging bring similar pressures for pension reforms across OECD countries. These reforms address fiscal issues in state pensions, typically by increasing the length of the working life, placing more of the pension responsibility on individuals, or converting to defined-contribution approaches. Our study shows that there is no single path for pension reform. While there are some variations, welfare states tend to follow their traditional paths, which differ across welfare regime types.