This book describes and quantifies the major socioeconomic changes that have occurred in four new member states of the EU (Slovenia, Hungary, Romania and Bulgaria) since the early 1990s.Within the broad framework of socioeconomic change, a number of topics are explored in greater detail. These include changes in activity, occupational status and educational attainment, household income sources and income inequality, and risk of income poverty. The analysis is based on household budget surveys and complemented with other statistical sources, enabling a coherent analysis of the impact of large changes in social policy at household level.