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We consider a time-varying parameter vector autoregressive model with stochastic volatility and mixture innovations to study the empirical relevance of the Lucas critique for the postwar U.S. economy. The model allows blocks of parameters to change at endogenously estimated points of time. Contrary to the Lucas critique, there are large changes at certain points of time in the parameters associated with monetary policy that do not correspond to changes in “reduced-form” parameters for inflation or the unemployment rate. However, the structure of the U.S. economy has evolved considerably over the postwar period, with an apparent reduction in the late 1980s in the impact of monetary policy shocks on inflation, though not on the unemployment rate. Related, we find changes in the Phillips curve tradeoff between inflation and cyclical unemployment (measured as the deviation from the time-varying steady-state unemployment rate implied by the model) in the 1970s and especially since the mid-1990s.  相似文献   

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This paper describes a forecast, performed in December 2008, of the time of the recovery of the U.S. economy from the contraction that began in December 2007. As in two earlier papers, the forecast uses an expert judgment approach, the Analytic Hierarchy Process (AHP), within the framework of decision theory, as well as its generalization to dependence and feedback in the form of the Analytic Network Process (ANP). The findings of this paper are that the economy would begin its recovery in July-August, 2010. While forecasting is always hazardous, our 2001 paper successfully forecast the date the recovery began. Since 1920 the validating authority for the turnaround dates has traditionally been the widely recognized National Bureau of Economic Research (NBER). The Bureau usually releases an official statement with their finding many months after the event (and of course after the forecasts had been done). Our results on the month in which the recovery began in 2001 were confirmed by the NBER in July 2003. We will again await the NBER determination of the time of recovery from the current recession.  相似文献   

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A. E. Boardman 《Socio》1979,13(6):297-302
This paper presents a model for the analysis of efficient labor force participation in the U.S. economy. Ridge regression estimates of the elasticities of cohorts of labor, classified by sex and occupation, are used in conjunction with wage data to illustrate the derivation of efficient allocation of labor cohorts in five economic sectors. These efficient constructs are compared with actual census data for 1960 and 1970. The results, while tentative, show a trend toward more efficient utilization of labor and greater participation by women in the work force.  相似文献   

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This paper investigates the extent of the transmission of U.S. supply and demand shocks to the Canadian economy using three different identification methods. Our findings are robust across identifications. We show that over the flexible exchange rate period, U.S. shocks tend to intensify Canadian business cycles, while they reduce the mean of Canadian prices and inflation. We also find that overall Canadian output is less sensitive to U.S. disturbances than found in earlier studies. Moreover, when the structural shocks are allowed to be correlated across countries, Canadian shocks explain around 18% of U.S. real GDP growth long run forecast error variance.  相似文献   

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The significance of learning to productivity growth is formulated within a dynamic adjustment-cost framework. Explicitly treating the acquisition of knowledge as a firm-specific capital good entering the production function along with other conventional inputs, the dynamic optimization model integrates the learning-by-doing hypothesis with technical change, scale, and disequilibrium input use effects in the aggregate productivity analysis. The theoretical framework is applied to examining the dynamic components accounting for the growth of U.S. production agriculture over the 1950–82 period. The results imply a less important role for technical change and assign a substantial role to the previously unmeasured contribution of learning-by-doing to the growth of aggregate agriculture industry.The editor for this paper was Melvyn Fuss.  相似文献   

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We use U.S. export and import price indexes to construct a relative purchasing power parity-based model of the nominal U.S. Dollar Index. The model is successful in predicting the future direction of change in the U.S. Dollar Index over a six-month period up to 68% of the time. Finally, the model, in combination with a simple linear, recursive technique, is able to statistically significantly outperform the random walk in predicting the value of the U.S. Dollar Index at terms of less than four months for the period from 1996 to 2005. The paper provides important implications for investors who are interested in the direction of change in the Dollar’s value, forecasting the level of the U.S. Dollar Index, as well as the extent of over- and undervaluation of the U.S. Dollar, in general.  相似文献   

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"The use of the Box-Jenkins approach for forecasting the population of the United States up to the year 2080 is discussed. It is shown that the Box-Jenkins approach is equivalent to a simple trend model when making long-range predictions for the United States. An investigation of forecasting accuracy indicates that the Box-Jenkins method produces population forecasts that are at least as reliable as those done with more traditional demographic methods."  相似文献   

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As older Americans take a close look at their assets, promote their interest in unlocking the wealth accumulation in their U.S. Saving Bond holdings. Use careful planning and advice when promoting this gift strategy.  相似文献   

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A bstract . In 1958 Daniel Fusfeld examined the role of joint ventures in the U.S. steel industry and concluded that joint ventures served as a substitute for mergers forbidden by the Justice Department. Since the Fusfeld study, things have changed drastically for integrated domestic producers. Competition from imports and domestic mini- mills have forced steel firms into bankruptcies and missive plant closings. The contemporary industry's participation in joint ventures is examined in an attempt to understand steel's restructuring. Today's integrated producers jointly may hold tighter control over raw materials, participate in growing numbers of horizontal Joint ventures , and engage in numerous cooperative enterprises with foreign competitors, particularly the Japanese. Contemporary U.S. producers are becoming increasingly absorbed in the global economy.  相似文献   

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循环经济:与自然和谐的经济发展模式   总被引:1,自引:0,他引:1  
循环经济是通过将经济活动按照自然生态系统的模式,组成"资源-产品-再生资源"的物质反馈式循环过程,使经济活动对自然环境的影响降低到最小程度,在物质不断循环的基础上实现资源的最大化利用,促进社会经济的可持续发展.发展循环经济是人类社会发展的必然选择.在我国高速的经济增长中,资源短缺和环境污染的问题非常严重,因而发展循环经济具有重要意义.发展循环经济是一项涉及各行各业、千家万户的事业,需要政府、企业和社会各界的共同努力,增强全社会的资源忧患意识和节约资源、保护环境的责任意识,构建资源节约型、环境友好型社会.  相似文献   

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This paper uses recently released official data on the foreign exchange market interventions of the Japanese monetary authorities in the yen/U.S. dollar market during the period 1991–2001 to examine the motivation for the intervention policy. We also compare the Japanese intervention policy with the U.S. intervention policy. Our results suggest that the Japanese authorities regularly responded to deviations of the yen/U.S. dollar exchange rate from a short-term and a long-term exchange rate target. By contrast, the U.S. authorities intervened only occasionally and seemed to have merely reinforced Japanese interventions.  相似文献   

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