Two important tools employed increasingly by tourism economists to enhance our knowledge of the economic significance of tourism are Tourism Satellite Accounts (TSAs) and Computable General Equilibrium (CGE) models. But the relationship between the two is often not fully understood by tourism stakeholders. The chapter first outlines the nature and importance of TSAs as a measure of the economic contribution of tourism to an economy. TSAs based estimates of the direct contribution of tourism in Australia are provided to illustrate the use of this tool. The chapter then discusses the importance of developing TSAs at the regional level and the approaches that can be employed (bottom up, top down, mixed), as well as the limitations of TSAs as a policy instrument. It then discusses CGE modelling as a tool of economic impact analysis providing CGE based estimates of the economic impacts of increased inbound tourism to Queensland to illustrate the use of this technique. The analysis is expected to enhance stakeholder’s understanding of the separate roles that TSAs and CGE modelling can play in determining the economic significance of tourism to an economy.