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A public private partnership is a government service or private business venture which is funded and operated through a partnership of government and one or more private sector companies. PPP involves a contract between a public sector authority and a private party, in which the private party provides a public service or project and assumes substantial financial, technical and operational risk in the project. In some types of PPP, the cost of using the service is borne exclusively by the users of the service and not by the taxpayer.〔Barlow, J., Roehrich, J.K. and Wright, S. (2013). Europe Sees Mixed Results From Public-Private Partnerships For Building And Managing Health Care Facilities And Services. Health Affairs. 32(1):146-154 http://www.ncbi.nlm.nih.gov/pubmed/23297282〕 In other types (notably the private finance initiative), capital investment is made by the private sector on the basis of a contract with government to provide agreed services and the cost of providing the service is borne wholly or in part by the government. Government contributions to a PPP may also be in kind (notably the transfer of existing assets). In projects that are aimed at creating public goods like in the infrastructure sector, the government may provide a capital subsidy in the form of a one-time grant, so as to make it more attractive to the private investors. In some other cases, the government may support the project by providing revenue subsidies, including tax breaks or by removing guaranteed annual revenues for a fixed time period. There are usually two fundamental drivers for PPPs. Firstly, PPPs are claimed to enable the public sector to harness the expertise and efficiencies that the private sector can bring to the delivery of certain facilities and services traditionally procured and delivered by the public sector. Secondly, a PPP is structured so that the public sector body seeking to make a capital investment does not incur any borrowing. Rather, the PPP borrowing is incurred by the private sector vehicle implementing the project. On PPP projects where the cost of using the service is intended to be borne exclusively by the end user, the PPP is, from the public sector's perspective, an "off-balance sheet" method of financing the delivery of new or refurbished public sector assets. On PPP projects where the public sector intends to compensate the private sector through availability payments once the facility is established or renewed, the financing is, from the public sector's perspective, "on-balance sheet"; however, the public sector will regularly benefit from significantly deferred cash flows. Typically, a private sector consortium forms a special company called a "special purpose vehicle" (SPV) to develop, build, maintain and operate the asset for the contracted period.〔〔Zheng, J. Roehrich, J.K. and Lewis, M.A. (2008). The dynamics of contractual and relational governance: Evidence from long-term public-private procurement arrangements. Journal of Purchasing and Supply Management. 14(1): 43-54 http://www.scopus.com/record/display.url?eid=2-s2.0-41049112855&origin=inward&txGid=yXIvJQ7AsPq0YyDQfJmJLCa%3a2〕 In cases where the government has invested in the project, it is typically (but not always) allotted an equity share in the SPV.〔(Moszoro M., Gasiorowski P. (2008), 'Optimal Capital Structure of Public-Private Partnerships', IMF Working Paper 1/2008 ). Papers.ssrn.com (2008-01-25). Retrieved on 2011-11-20.〕 The consortium is usually made up of a building contractor, a maintenance company and bank lender(s). It is the SPV that signs the contract with the government and with subcontractors to build the facility and then maintain it. In the infrastructure sector, complex arrangements and contracts that guarantee and secure the cash flows make PPP projects prime candidates for project financing. A typical PPP example would be a hospital building financed and constructed by a private developer and then leased to the hospital authority. The private developer then acts as landlord, providing housekeeping and other non-medical services while the hospital itself provides medical services.〔 ==Origins== Pressure to change the standard model of public procurement arose initially from concerns about the level of public debt, which grew rapidly during the macroeconomic dislocation of the 1970s and 1980s. Governments sought to encourage private investment in infrastructure, initially on the basis of accounting fallacies arising from the fact that public accounts did not distinguish between recurrent and capital expenditures. The idea that private provision of infrastructure represented a way of providing infrastructure at no cost to the public has now been generally abandoned; however, interest in alternatives to the standard model of public procurement persisted. In particular, it has been argued that models involving an enhanced role for the private sector, with a single private-sector organization taking responsibility for most aspects of service provisions for a given project, could yield an improved allocation of risk, while maintaining public accountability for essential aspects of service provision. Initially, most public–private partnerships were negotiated individually, as one-off deals, and much of this activity began in the early 1990s. PPPs are organized along a continuum between public and private nodes and needs as they integrate normative, albeit separate and distinct, functions of society—the market and the commons. A common challenge for PPPs is allowing for these fluctuations and reinforcing the intended partnership without diminishing either sector. Multisectoral, or collaborative, partnering is experienced on a continuum of private to public in varying degrees of implementation according to the need, time restraints, and the issue at hand. Even though these partnerships are now common, it is normal for both private and public sectors to be critical of the other’s approach and methods. It is at the merger of these sectors that we see how a unified partnership has immediate impact in the development of communities and the provision of public services.. 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「Public–private partnership」の詳細全文を読む スポンサード リンク
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