The primary goal of this project is to provide a sound knowledge base to support the state’s efforts to improve subsidy-receiving families’ access to high quality, stable care that can lead to positive child development. The proposed study is a three-part quantitative study. First, we focus on the availability and quality of subsidized providers, before and after CCDBG, to examine changes in the availability and quality of subsidized care providers in MA. Second, we collect new primary data on multiple dimensions of quality for subsidized care providers to understand the extent to which children have stable, high quality care, and the relationship between multiple dimensions of quality and stability in subsidized care arrangements that can directly inform quality improvement efforts through professional development. Lastly, we pilot an approach to study how both quality of subsidized care providers and stability in subsidized care may affect child development outcomes, by linking subsidy program data to child educational outcome data.