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71.
This paper develops an optimal replacement strategy for capital intensive equipment with long delivery lead time. The strategy is based on an extended version of the real options approach to repeated replacement decisions, in which the goal is to determine the operating cost and delivery lead-time conditions upon which a replacement should be ordered.The real options approach to capital replacement problems is superior to traditional net present value (NPV) approaches, as it values of the option to adapt decisions based on current (rather than predicted) system conditions. However, previous applications of the real options approach to repeated replacement have not considered the impact of long and uncertain lead times, and have therefore focused on when to replace rather than when to order. Delivery lead times are an important consideration in an expanding mining sector in which demand for heavy mobile equipment (HME) exceeds the capacity of suppliers to provide the equipment in a timely manner.The inclusion of a lead time element results in a decision with an “option” period and an “option-less” period. Simulations are used to demonstrate the improved outcome of real options based replacement strategies compared with those derived using a traditional NPV approach, both with and without lead times. Further the performance of the order placement strategy with different boundary conditions, bounded and reflecting, is explored. No appreciable difference in performance of these strategies was identified. The optimal order placement strategy incorporating delivery lead times is displayed on a simple chart which is accessible to fleet management personnel.  相似文献   
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Complementing market-based policy instruments with conflict analysis approaches provides a wider understanding of market situations and allows to identify minimal requirements regarding needs, power and conflict dynamics. If these are not met, a market cannot be successfully introduced or a liberalization process implemented. Conflict analysis offers a language better suited to the concerns of people negatively affected by new markets. Applying this language helps to counterbalance the predominance of economic concepts. This fosters mutual understanding and enhances the prospect for successful implementation of market-based policies. We illustrate the potential of conflict analysis with examples from water privatization and labeling.  相似文献   
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In the United Kingdom, Charities Aid Foundation (CAF) data suggest that grant-making trusts are currently responsible for supplying over 13 per cent of an ‘average’ charity's income (approximately four times the amount committed by corporate donors). Remarkably however, very little is known about the behaviour of such organisations and the contact strategies that are used by charities to solicit their support. This paper reviews the findings of a postal survey of 350 grant-making trusts and identifies the criteria most commonly used to perform an initial sift of proposals and to develop a final short list to appraise for support or rejection. The findings clearly show that charity applications to trusts have increased dramatically over the past three years. Regrettably however, trusts perceive that there has been an accompanying decline in the standards of application being made. Trusts report that they are now frequently subjected to ill-considered ‘blanket’ mailings from charities that often take no account of the specific aims and objectives of the trust. In general, the research also identified that applicants appeared to have undertaken very little research prior to submission of their application and if successful, would be unlikely to thank the trustees, nor to indicate what had been achieved as a result of their generosity.  相似文献   
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In this paper we apply a Transaction Cost Theory framework to analyse the use and effects of contracting out in Swedish local government. During the last decade Swedish local authorities, like in many other countries, have, to a larger extent, started to contract external subcontractors to fulfil their responsibilities towards its citizens. It is not only in the traditional subcontracting sectors such as housing, infrastructure, and technical services that this trend is evident, but also in policy areas like education, social care, and elderly care. In fact, very little is known about the overall effects of, and the mechanisms underlying, governance choices. The overall results corroborate transaction cost reasoning. Supplier competition and specificity have anticipated effects on municipal de‐integration. Too little, but not too much, use of contracting out, in relation to theoretical predictions, worsens performance. The latter aspect is not fully in accordance with TCE‐propositions.  相似文献   
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The system of individual prospective aging reserve enables the insured persons irrespectively of their individual risk to change their Private Health Insurance. Besides the presentation of an implementation concept it is shown that there is no inducement to miscalculate the extent of the individual prospective aging reserve on purpose.  相似文献   
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