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Infrastructure and economics : ウィキペディア英語版 | Infrastructure and economics This article delineates the relationship between infrastructure and various economic issues. == Ownership and financing of infrastructure == (詳細はgovernments or by private companies, such as sole public utility or railway companies. Generally, most roads, major ports and airports, water distribution systems and sewage networks are publicly owned, whereas most energy and telecommunications networks are privately owned. Publicly owned infrastructure may be paid for from taxes, tolls, or metered user fees, whereas private infrastructure is generally paid for by metered user fees. Major investment projects are generally financed by the issuance of long-term bonds. Hence, government owned and operated infrastructure may be developed and operated in the private sector or in public-private partnerships, in addition to in the public sector. In the United States, public spending on infrastructure has varied between 2.3% and 3.6% of GDP since 1950.〔"Money for Public Projects", The New York Times, November 19, 2008 http://www.nytimes.com/imagepages/2008/11/19/business/economy/19leonhardt_graphic.ready.html (accessed January 26, 2009)〕 Many financial institutions invest in infrastructure.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Infrastructure and economics」の詳細全文を読む
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