A California child care market study with the following objectives: (1) tracing trends in price; (2) relating price changes to characteristics of supply and demand in county and sub-county markets; (3) understanding how providers set prices; and (4) assessing the effect of vouchers, reimbursement rate ceilings, or other policies on the overall price of care in the private market. Sub-study 1 is a trend analysis of provider prices from Regional Market Rate Surveys over the past decade. Sub-study 2 is a longitudinal study of 25 providers in urban San Mateo County and rural Kern County.