This dissertation applies various program evaluation techniques to examine both the intended and unintended consequences of government spending and regulation that affect family labor supply, children's healthcare utilization, and household saving behavior. Chapter 2 of this dissertation exploits the large and anticipated cash influx in the first quarter of the calendar year induced by the Earned Income Tax Credit (EITC) to estimate the causal effect of the receipt of a cash transfer on the timing of family labor supply. I find that income seasonality caused by EITC receipt induces changes in the intra-year labor supply patterns of married women. In contrast, the receipt of the EITC does not affect the timing of the labor supply of married...