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81.
Although there have been restrictions on access to health care since the inception of the National Health Service (NHS), there has been increasing debate on rationing and priority-setting following the changes introduced from 1991. Much of this debate has been fuelled by the fact that local Health Authorities (HAs), working with limited budgets to purchase health care services for their local population, must set priorities in order to remain within their budget. Some commentators go further and argue that health care rationing is both necessary and inevitable. Others suggest that acceptance of the necessity of rationing may be self-defeating, and question the underlying assumptions. This article reviews some of the arguments and asks whether health care rationing is really necessary.  相似文献   
82.
From the outset, proponents of sustainable tourism have, consciously or not, set great store by interpretation, and gradually the linkages between sustainable tourism and interpretation have begun to be developed. This discussion examines the potential benefits of linking interpretation and sustainable tourism and assesses a number of the pitfalls or difficulties which are involved. The potential benefits include improved visitor management, local economic and environmental gains and fuller community involvement. Among the several pitfalls of linking interpretation and sustainable tourism which are considered are the dangers of over-interpretation, intrusion, creating ‘quaint’ tourist landscapes, and those of elitism.  相似文献   
83.
84.
We study the pricing mechanisms and information content of block trades on the Shanghai Stock Exchange (SSE) for the six year period from 2003 to 2009.There is an average of about 4% block discount, which is large in magnitude and statistically significant, reflecting compensation for locating counterparties and the cost of negotiating terms. We also examine permanent price impacts of the trades and find that discount block trades (DBTs) have significant negative permanent price impacts for various periods extended up to 60 trading days after the block trades. Conversely, premium block trades (PBTs) have small and statistically insignificant negative permanent price impacts, suggesting that buyers do not possess valuable private information. Finally, we classify the trades into buys and sells using a set of stricter rules and note similar results to those of DBTs and PBTs. Of additional note, block sells on stocks with expirations of restricted shares seem to have significant information content. As these trades are more likely to be originated from insiders, our results suggest that they strategically time the sale of these shares to maximize gains.  相似文献   
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86.
In contrast to arguments that flexible manufacturing systems (FMS) are highly versatile configurations that are only prevented from machining a wide range of parts by extrinsic constraints, this article contends that FMS are a genre of configurations that combine flexibility and intrinsic constraints in a variety of permutations, depending on a user's intended objectives. Empirical evidence is used to identify the factors that shape the levels of constraint in particular FMS and to identify instances where intrinsic constraints impede performance. Suggestions are made for initiatives to facilitate the continued use of FMS with the highest levels of intrinsic constraints that have hitherto hindered performance when the FMS users' manufacturing needs changed. Occupational structures that promote a polarization between staff with engineering knowledge and those responsible for defining general strategic objectives are suggested as a potential obstacle to such initiatives.  相似文献   
87.
经济衰退时期经常会出现变化.许多人发现自己没有了工作,或者工作的时间与收入相继减少.人们力图使收支相抵以避免入不敷出,他们正竭尽全力以小博大.  相似文献   
88.
We propose a new class of models specifically tailored for spatiotemporal data analysis. To this end, we generalize the spatial autoregressive model with autoregressive and heteroskedastic disturbances, that is, SARAR(1, 1), by exploiting the recent advancements in score‐driven (SD) models typically used in time series econometrics. In particular, we allow for time‐varying spatial autoregressive coefficients as well as time‐varying regressor coefficients and cross‐sectional standard deviations. We report an extensive Monte Carlo simulation study in order to investigate the finite‐sample properties of the maximum likelihood estimator for the new class of models as well as its flexibility in explaining a misspecified dynamic spatial dependence process. The new proposed class of models is found to be economically preferred by rational investors through an application to portfolio optimization.  相似文献   
89.
This paper empirically examines the impact of the US stock market on Australian economic activity as one explanation of the strong correlation in the Australian and US business cycles. It is found that both the US and Australian share markets appear to have a significant impact on Australian activity.  相似文献   
90.
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