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681.
This article provides new estimates of the return on capital employed (ROCE) for major British railway companies. It shows that ROCE was generally below the cost of capital after the mid‐1870s and fell until the turn of the century. Addressing cost inefficiency issues could have restored ROCE to an adequate level in the late 1890s but not in 1910. Declines in ROCE hit share prices and investors made little or no money in real terms after 1897. Optimal portfolio analysis shows that, while railway securities were attractive to investors before this date, they would have been justified in rushing to the exits thereafter. 相似文献
682.
A stylized fact of U.S. inflation dynamics is one of extreme persistence and possible unit root behavior. If so, the implications for macroeconomics and monetary policy are somewhat unpalatable. Our econometric analysis proposes a parsimonious univariate representation of the inflation process for the last 60 years, the nonlinear exponential smooth autoregressive. The empirical results confirm a number of the key features such as global stationarity, local unit root behavior, and lower persistence in the post-1983 period than in the pre-1983 period. We compare the forecasting ability of our model with that of competing univariate models and find that the nonlinear model outperforms the linear autoregressive model in the pre-1983 period and the random walk in the post-1983 period at short horizons. 相似文献
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In this paper, we consider the effect of ambiguity on the private provision of public goods. Equilibrium is shown to exist and be unique. We examine how provision of the public good changes as the size of the population increases. We show that when there is uncertainty, there may be less free‐riding in large societies. 相似文献
689.
DAVID JOHNSTONE 《Australian Accounting Review》1999,9(17):33-41
In the formal process of determining whether there are potential savings from contracting out, public-sector agencies in Australia and Great Britain are required by various government-issued guidelines to measure the relevant costs of in-house activities and to compare these with external bids. The cost comparison methodology explained and demonstvated in some of the most rigorous of these published guidelines is mistaken in its treatment of the costs to agencies of owning and using capital assets. There are two distinct mistakes in the demonstrated treatment of capital costs, both adding to the apparent costs associated with in-house capital, and hence to some degree tilting the analysis against acceptance of any in-house bid. 相似文献
690.
Health-care utilization is estimated for different subpopulations with respect to various measures of health status, which allows the classification of health-care consumers into groups with different intensities of demand. This specification allows us to determine whether racial differences vary between subgroups of consumers. In addition to blacks, we also consider utilization by Hispanics. The model is estimated separately for five measures of utilization: office-based physician visits, office-based nonphysician visits, outpatient department visits, emergency room visits, and hospital discharges using data from the Medical Expenditure Panel Survey. Results across numerous specifications indicate that racial differences remain a serious public policy concern, both among healthy and unhealthy minorities. ( JEL I11, I12) 相似文献