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131.
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In 1982, the Congress authorized $11 billion to modernize the nation's air traffic control system—one of the largest infrastructure investments since the building of the interstate highway system. Although this investment appears to offer a large and robust return, the economic results depend strongly on productivity gains through system consolidation. It is uncertain what balance the Congress will strike between the long-term, widely shared benefits of greater productivity and the immediate job losses from system consolidation. This risk can be included in the calculus of expected return through Monte Carlo analysis. When this is done, the expected return drops very close to the 10% hurdle rate that the government often uses for such projects. This method of integrating political risk can be applied to any investment, public or private, for which political action joins the customary economic and technical uncertainties in affecting the outcome.  相似文献   
133.
The states have moved through three distinct periods in finance and taxing policies. First, until the 1930s, states dominated over congress in taxing powers. During the Great Depression, many programs were initiated which involved the states in close grant-in-aid arrangements with the federal government. A second period was initiated during the 1960s. when the number of federally-funded grants exploded. States were soon involved in a variety of new responsibilities. This period has now been supplemented by a third, which is characterized by tax reductions and spending limits, often imposed through referenda.  相似文献   
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Editor's Note: V.O. Key's article bemoaning "The Lack of a Budgetary Theory" was reprinted in the previous issue of Public Budgeting & Finance. The problems identified by Key are normative; they go to the basic values arid purposes of society and, hence, cannot be resolved by budgetary solutions alone. But a dozen years after Key wrote, Verne Lewis sought to anchor a theory of budgeting in marginal analysis, His article, printed here by permission of the American Society for Public Administration, first appeared in the Public Administration Review in 1952, Rather than seeking a full-blown political philosophy. Lewis thought that budgetary choice could be rationalized at the margins, by comparing the marginal costs and benefits of competing claims on public resources, While his hopes for a theory of budgeting have not been fulfilled, Lewis laid the groundwork for forms of marginal analysis introduced by PPB and ZBB in later decades. Indeed, there is a remarkable affinity between the budgetary structure proposed by Lewis and the one used by zero-base budgeting in the 1970s.  相似文献   
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