historical heritage in the form of the arts (art galleries, music halls, publishing houses), non-profit venues (museums, performing arts theaters), and public assets (libraries, parks). Legislation Consequently, this new configuration of metropolitan economies requires equally new and adaptive government policymaking. For effective legislation, contemporary nations must reformulate their understanding of place, moving away from disparate states, provinces, and regions and embracing a network of integrated metropolitan economies. Hence, metros must become a recognized actor among the usual federal-state-local apparatus. Additionally, government departments and ministries must acknowledge the interplay of arenas such as the inflexible tandem of housing and transportation as well as energy and the environment. Coordinated efforts across agencies and programs must take place to ensure best performance outcomes and high efficiency. Even more, management must change from prescriptive, formulaic, hierarchical leadership to more nimble, networked, and compact collaborations. These organizational reforms would influence a host of policies including among others transportation infrastructure, housing systems, employment hubs, energy standards, green spaces, and environmental protection. For instance, the incorporation of metropolitan planning organizations (MPOs) in US DOT programs and emergence of metropolitan governments worldwide are evidence of the impact of metropolitan economies. Other concrete examples include building the Metrorail system, which required coordinated agreement between the Washington, D.C., Virginia, and Maryland environs; likewise, high-speed rail in Spain which connects virtually every large metro in the country. Chicago's Plan for Transformation in overhauling the city's public housing stock has to work together with local stakeholders on lease agreements, land use, economic development, and local taxes. The Triangle Area's high tech life sciences research hub, the Research Triangle Park, continually works together with surrounding research universities in Durham, Raleigh, and Chapel Hill. Denver's expanded metropolitan transportation system needed a surrounding mayor caucus for joint efforts. The Hong Kong Airport and Shenzhen Airport dual services link that aim to capitalize on "the synergy of their complementary flight networks" required agreement between Hong Kong and China. The Channel Tunnel, an undersea rail tunnel under the English Channel, required cooperation and financing between the French and Britain governments. The Port of Rio de Janeiro serves the city and surrounding states in Brazil. All these partnered, comprehensive initiatives are crucial in metropolitan economies. Examples Many examples of the metropolitan economies worldwide include (see links below): The financial commerce of Chicago and media/entertainment of Miami, both of which metros contribute a significant share of their state's economies;