[영문]In an empirical investigation, the paper identifies the main political economy drivers of structural policy changesin OECD countries’ labour and product markets over the 1985-2003 and 1975-2003 periods respectively. Thecore empirical results, based on a set of policy indicators that cover 21 countries, suggest that factors that arebeyond government control have an important influence on the implementation of structural reform, includingeconomic crises, exposure to foreign competition, and government’s duration in office. Nonetheless, a number offactors that governments can control, including budgetary conditions and spillovers across policy areas ? in particularfrom the product to the labour market ? are also important to both initiate and sustain reforms.