published_or_final_version / Transport Policy and Planning / Master / Master of Arts

Acceptance sampling plans by variables are a basic quality control technique. These plans provide economical procedures to determine the acceptability of batches of product. Most of these plans are based on a single quality characteristic and are of the classical type. This work concentrates on Bayesian variable acceptance sampling plans for fraction defective. Both destructive and non-destructive sampling procedures are considered. A set of decision points are estimated and employed to make decisions about the inspected lots. Techniques to dispose of the rejected lots are provided. Components of the expected total cost relative to various decisions are estimated. The sample size required to obtain the expected optimum cost is found. An untrue assumption implicit in the measurement of the quality characteristic of items sampled is that the observed dimensions are error free. The distributions, means, and variances of a set of parameters for error free and error prone sampling is listed. Computer programs written in FORTRAN 77 are developed to compute the decision points and the costs for both destructive and nondestructive testing. Precise Bays estimate of the costs and other economic parameters involve the moments of the fraction defective p raised to the kᵗʰ power. Mathematical expressions for the conditional expectations of p|x and p|ẋ are derived and a computer program to estimate these moments is provided. Producing quality items with minimum cost requires keeping a production process under control. The quality characteristic X of each item produced is determined and the sample means are plotted on an Ẋ-control chart. A production process is assumed to start in control at time t = 0 with specific values of the mean and standard deviation. The occurrence of a single or multiple cause-failures shift the process mean outside the control limits. During the search for the causes of failure, the process is either allowed to continue in operation or shut down until the assignable cause or causes are discovered. The expected duration of time during which the process is shut down and the additional time to be taken to repair the process are considered. Computer programs are provided to estimate the optimal sample size, the interval between successive samples, the control limits, the probability of type I error, the power of the chart, and the average time the process operates in the presence of an assignable cause. The parameters estimated are employed to estimate the optimal loss-cost. The economic design of Ẋ -charts assumes one quality characteristic of interest. However a product quality in most industrial products and processes is characterized by more than one quality characteristic where the application of a Ẋ -control chart for each variable is inappropriate. In this work a Hotellings T² control chart is employed to handle cases of where products are tested relative to several quality characteristics.

稿本 / 論文(碩士)--香港中文大學硏究院新聞傳播學部,1992. / 參考文獻: leaves 83-85 / 朱儉國. / 目錄 / 圆表目錄 / Chapter 第一章 --- 電信與經濟發展 ---趨向於理論的形成 --- p.1-19 / Chapter 1.1 --- 前言 --- p.1 / Chapter 1.2 --- 電信與經濟發展之理論來源 --- p.4 / Chapter 1.3 --- 電信與經濟發展研究的基本內容 --- p.10 / Chapter 1.4 --- 電信與經濟發展關係中的基本假設 --- p.14 / 註釋 --- p.16 / Chapter 第二章 --- 有關電信與宏觀經濟效益之文獻 --- p.20-33 / Chapter 2.1 --- 西方學者對這一課題的研究 --- p.20 / Chapter 2.2 --- 中國學者對電信業之宏觀經濟效益的研究 --- p.30 / 註釋 --- p.32 / Chapter 第三章 --- 電信與經濟發展關係研究 ----上海個案 --- p.34-62 / Chapter 3.1 --- 研究的對象和假設 --- p.34 / Chapter 3.2 --- 上海電信事業發展史略 --- p.37 / Chapter 3.3 --- 資料的收集和整理 --- p.43 / Chapter 3.4 --- 研究方法 --- p.50 / Chapter 3.5 --- 運算結果 --- p.54 / 註釋 --- p.60 / Chapter 第四章 --- 探討和總結 --- p.63-82 / Chapter 4.1 --- 探討 --- p.63 / Chapter 4.2 --- 總結 --- p.76 / 註釋 --- p.81 / 參考書目 --- p.83-85

Yuk-fai Fong. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1996. / Includes bibliographical references (leaves 69-71). / Chapter 1. --- Introduction --- p.1 / Chapter 2. --- Review of Related Literature and Motivation of Research / Chapter 2.1 --- "Browning, Bourguignon, Chiappori and Lechene (1994)" --- p.6 / Chapter 2.2 --- Chiappori (1992) --- p.9 / Chapter 2.3 --- "Bourguignon, Browning, Chiappori and Lechene (1993)" --- p.10 / Chapter 2.4 --- Motivation of Research --- p.11 / Chapter 3. --- The Identification of non-assignable consumption / Chapter 3.1 --- Extension from Previous Results --- p.15 / Chapter 3.2 --- An Alternative Approach --- p.18 / Chapter 4. --- Identification in case of Incomplete Observation of Private Expenditure / Chapter 4.1 --- The BBCL Approach --- p.22 / Chapter 4.2 --- An Alternative Approach of Identification --- p.24 / Chapter 4.3 --- Inclusion of Exogenous variables in Sharing Rule: Structural vs. Reduced form --- p.30 / Chapter 4.4 --- Test for Omission of Some Items in the Total Private Expenditure --- p.35 / Chapter 4.5 --- Designation of Nature of Goods- A Remark --- p.36 / Chapter 5. --- Extension to Include Private Leisure as a Choice Variable of Individuals / Chapter 5.1 --- Difficulties in Identification of Sharing Rule of Total Private Expenditure in a Framework of Free Labor Choice --- p.38 / Chapter 5.2 --- Identification of Sharing Rule of Total Private Expenditure Without Observation of Private Leisure --- p.41 / Chapter 5.3 --- Identification of Sharing Rule in Structural Form with the Observation of Unearned Incomes --- p.46 / Chapter 6. --- Possibility of Identifying the Sharing Rule of Total Private Expenditure under Incomplete Observation of Consumption of Commodities --- p.49 / Chapter 6.1 --- Identification of ) --- p.50 / Chapter 7. --- Parametric Examples for Illustration / Chapter 7.1 --- Example I --- p.57 / Chapter 7.2 --- Example II --- p.61 / Chapter 8. --- Conclusion --- p.65 / Appendix --- p.67 / Reference --- p.69

Recent studies in water management policy point to insufficient recognition of water as a scarce commodity and the failure of pricing policies to account for the full economic costs of its production and supply. These costs include opportunity costs related to alternative uses of water; user costs associated with managing a scarce resource; and costs of externalities such as ground water depletion, pollution of waterways, and greenhouse gas emissions. Existing cost recovery based pricing policies may lead to inefficiencies such as excess consumption, under-investment in water infrastructure, and unnecessary subsidisation. Water scarcity can be managed in several ways. We can increase supply by investment in additional harvesting capabilities or new technologies such as desalination; we can constrain consumption so that existing supplies last longer; or we can use water in more efficient ways. As a short term measure, most countries adopt water restrictions when supplies are at critical levels. In the future, as urban population growth continues, harvesting of storm water and reuse of grey water may become part of a sustainable water management strategy. Water trading can be used to move water to where the marginal benefits are highest. Considerable water savings are possible through the use of more efficient industrial and domestic appliances. There is evidence in some countries that higher water tariffs have reduced consumption and promoted awareness of conservation. If we accept that water is an economic good, then we need to understand the costs related to its production, the patterns of its use, and the benefits received by different users. This thesis is an examination of theoretical and applied aspects of urban water pricing based on analysis of cost, demand, and welfare. We present theoretical models of cost that include economies of scale as a parameter, and a model of water demand by households with heterogeneous preferences. We determine marginal cost at the efficient level of output based on a partial equilibrium of supply and demand. We also show that when water is produced with increasing returns to scale, the efficient price will be insufficient to recover all costs, and therefore a form of second best pricing is required. We contrast conventional notions about water suppliers being cost minimisers with an alternative frontier model of cost efficiency. Two case studies examine the provision of water services under different forms of ownership. The first case study examines the provision of water to domestic households in the state of Victoria, Australia. The second case study examines the supply of water to the residents of Manila, one of the world’s largest cities that privatised its water service in 1997 under a form of concession agreement. A third case study derives an efficient cost frontier for a sample of water utilities from Asia and Australia and proposes a form of best practice pricing. The thesis concludes with a summary of the main results and policy conclusions, and ideas for future research. / http://proxy.library.adelaide.edu.au/login?url= http://library.adelaide.edu.au/cgi-bin/Pwebrecon.cgi?BBID=1289196 / Thesis (PhD) -- School of Economics, 2007

Not available

Not available / text

No description available.

The main purpose of this report is to conduct an analysis with a view to determine the potential role and contribution of agriculture in region E. This report emphasises the agricultural impact in determining an economic development strategy for region E. It is therefore the aim of this report to provide a brief situation analysis and an interpretation of existing problems affecting development. The importance of the sector, implications of the spacial distribution, the structure, potential growth and the policy environment will be addressed. From the above, constraints, bottlenecks, the likely future demand, etc will be pointed out. The interpretation of the above and its implications for development is necessary to determine objectives for the aimed strategy. The strategy for region E is necessary in determining policies stressing economic growth and fair distribution of resources to enable the mass of the population to share in increased wealth and economic opportunities. / Region E economic development study

This Research Report is submitted in partial fulfillment towards the degree of Master of Arts (MA) in International Relations in University of the Witwatersrand, Johannesburg. June 2018 / This research investigates the nature of the correlation between the level of corruption and economic growth across 211 countries over the period from 1996 to 2006. With this intention, initially it reviews the conventional argument on corruption being regarded as an inhibitor of economic growth. This research also aims to investigate whether there are countries which exhibit good economic growth despite the presence of high levels of corruption. If so, are there other factors which may explain the presence of economic growth in these outlier countries? The findings clearly highlight that there are countries that exhibit good economic growth despite the presence of high levels of corruption. The findings also revealed that there are other factors that may contribute to economic growth despite the presence of high levels of corruption in these outlier countries. These other factors include trade openness, foreign direct investment and government spending. Thus, it appears that corruption is not always necessarily a factor that reduces economic growth in all contexts / MT 2019