In a set of projects, the ETG team (with DRI and SRI) examined the underlying economic dynamics of the Southern California economy from three perspectives–historical, regional, and industrial–to help identify opportunities for the regional utility to affect the economic future of the region. Four major clusters were identified and the linkages between them were examined in detail: aerospace, advanced manufacturing, and process industries; diversified manufacturing; advanced services (business/ financial, health services, tourism/entertainment); and agriculture and food processing. The report discusses a number of important roles the client can play through its own activities and through cooperative efforts with other private firms and public agencies to promote critical public actions that will help build stronger industry linkages and promote economic infrastructure. The regional utility has used the study to help identify new business opportunities as well as to take action in enhancing the overall long-term economic growth of the region.