Policy Analysis of Hanford Tank Farm Operations with System Dynamics Approach

Policy Analysis of Hanford Tank Farm Operations with System Dynamics Approach
Author: Sangman Kwak (Sc. D.)
Publisher:
Total Pages: 484
Release: 1995
Genre:
ISBN:

The task of Department of Energy (DOE) Nuclear Weapons Complex is difficult to manage because of the lack of certainties in the nature of physical problems, uncertainties in social / political problems, and the lack of consensus in goals, means, and resource requirements. Managers need tools to help analyze impacts of various decision options. It is speculated that a system dynamics (SD) model would be suitable to deal with such problems. The Waste Tank Safety and Operations program at the Hanford site is chosen to test the usefulness of SD models for the DOE cleanup tasks. The SD model utilizes a commercial software package, STELLA, and is composed of 2,577 variables including 232 levels. It occupies about 5 megabytes in a Macintosh computer, and a 20 year simulation takes about 10 minutes on a Quadra 700 machine. The simulations for various cases show very reasonable results, which match well with the interview data. The model can analyze managerial / policy options regarding changes, budget constraints, delays, etc. Examination of the system shows that the major source of the current system inefficiency is diverse external changes. The changes not only create management work but also lower the productivity of workers in various ways. Besides changes, budget constraints, delays in work approval and material procurement are also major sources for system inefficiency. The case studies suggest that the model would be more useful if it included other programs at the Hanford site. The same techniques can be applied to any of 14 DOE Nuclear Weapons Complex sites. Furthermore, an aggregated system dynamics model which represents the totality of DOE Nuclear Weapons Complex program could be practically developed if some details are sacrificed. In conclusion, system dynamics can be a useful tool for communication purposes where different interest groups are involved, and/or external factors play important roles like the DOE clean up task.

Land Management & Economics

Land Management & Economics
Author: Kim Hin Ho
Publisher: Partridge Publishing Singapore
Total Pages: 197
Release: 2020-07-21
Genre: Business & Economics
ISBN: 1543759297

This book is concerned with a unique, overall land policy optimization model, under active government policy, resulting in the sustainable effectiveness and efficiency of land policy. Such a model distinguishes it from the highly specific urban-planning land use optimization model, meant for optimizing land use specification, strategic land uses, land use restrictions and control, like zoning. Policy input is concerned with a hierarchical and structural definition of policy while ‘Additionality’ looks at land-policy output (outcome) variables, impacting broader land policy efficiency and effectiveness goals, their associated output indicators and the interaction with the macroeconomy. Long run urban policy-macroeconomy interaction is modeled in a contemporaneous cointegration model estimation, involving different sectors of the economy. The model looks at the equilibrium and optimal land-using economic activities. A dynamic interaction of land policy outcomes and their economic implications is discussed via cointegration tests and modelling. This book develops a rigorous system-dynamics-based computable general equilibrium model for direct real estate market uncertainty i.e. the frequent mismatch between office demand and supply under the impact of limited land constraint, the domestic common stock market, the macro economy and macroeconomic policy. Such dynamic interaction is structured under the demand-side and supply-side aspects. The book looks at the binomial option-pricing model by Cox, Ross and Rubinstein, to model the risk-neutral process for short term interest rates, common stock prices and Housing & Development Board (HDB) resale flat prices. Singapore’s Main Upgrading Program (MUP) is a heavily subsidized and highly targeted. Since 1992, the HDB has budgeted some S$3 billion to finance the MUP policy. A positive impact is the asset value enhancement of the HDB flats within the upgraded precincts. MUP subsidies vary significantly with the corresponding option premium. A 3-Room HDB flat owner is more inclined to opt for upgrading while the option premium is deemed to be less attractive for upgrading by the 4-Room HDB flat owner. Residents’ satisfaction level with town council (TC) services are examined, under different political parties. The concern is to ascertain a housing finance model, which analyzes the affordability of household borrowers for purchasing resale public housing. With Central Provident funds (CPF) usage, total interest paid over the loan life is significantly reduced. CPF as a financial buffer significantly reduce default risks for lender and household borrower.

Seaport and Airport Infrastructure Economics and Policy - a Singapore Perspective

Seaport and Airport Infrastructure Economics and Policy - a Singapore Perspective
Author: Ho Kim Hin/David
Publisher: Partridge Publishing Singapore
Total Pages: 120
Release: 2020-09-18
Genre: Business & Economics
ISBN: 1543760597

This book looks closely at the findings, contributions and recommendations on key issues concerning the concomitant subjects of the large and complex physical infrastructural provision like the seaport and the airport. Chapter 1 examines the seaports, where ships, cargoes, cranes, forklifts and storage yards, warehouses, lorries, roads and rail lines abound. Cargo handling needs specialist knowledge of the understanding supply chain management (SCM), and of the global integrated logistics hub, i.e. global gateway. Chapter 2 highlights that the growth of developing countries depends on adequate physical infrastructure to support economic development. The Chapter examines the merits of viable seaport infrastructure investment, of requiring large capital expenditure, long payback period and of structuring a defensible risk management strategy to deal with uncertainties. Singapore’s Jurong Port is the case study. Chapter 3 is concerned with the growth of developing countries ., which depends very much on having adequate physical infrastructure to support economic development. As a strategic response, many physical infrastructure investments like seaports are being privatised and highly purpose built. Merits of the viable, long term, seaport investment, and of structuring a defensible risk management strategy are essential to deal with uncertainties. Singapore’s Jurong Port is the case study. Chapter 4 is concerned with the global outreach of the small island state of Singapore’s seaport operation, owing to its chronic and limited land and small population size. To overcome limiting growth prospects, it is essential to grow and sustain the global outreach of the Port of Singapore. Last but not least, Chapter 5 recognizes that for public physical infrastructure developments like Singapore’s global Changi Airport, public funding is also a form of investment that entails uncertainties, which need to be rigorously evaluated with financial modelling on the risks and returns. Even more so for crucial seaport expansion and for developing a larger strategic objective for the long-term, well-being of the nation. Changi Airport is a key pillar of strength to support the growth of Singapore’s trade-oriented market economy.

An Asian Direct and Indirect Real Estate Investment Analysis

An Asian Direct and Indirect Real Estate Investment Analysis
Author: Kim Hin David HO
Publisher: Partridge Publishing Singapore
Total Pages: 858
Release: 2021-05-04
Genre: Business & Economics
ISBN: 1543764096

This book is dedicated to real estate scholastic work, in advancing the greater understanding of real estate investment analysis. This is because there has been limited research in bringing out clearly the uncertainty or risk, which is quantifiable uncertainty in real estate market analysis. Even real estate market research, which is carried out as an industry practice among private real estate researches, is no exception. Another reason is that it has been widely accepted that while the financial revolution has substantially changed many sectors of the financial industry, it has made little impact on real estate development and investment practice as Ill as scholastic work. Furthermore, while it is readily acknowledged that despite its huge share in the world Ialth, real estate investment discipline and research is on the whole still a poorly researched subject area. As a result, the industry tends to be dominated by traditional real estate analysts with little understanding of real estate market uncertainty and capital markets. These commentators are widely regarded to spend too much time worrying about local space supply and demand conditions, while totally losing sight of the everchanging real estate market and capital market conditions. The theme of this book is real estate investment analysis of direct and indirect real, which in turn can be appropriately managed under economic theory and the theoretical conceptions of real estate finance, provided the uncertainty is quantifiable. The book deploys case studies involving Singapore and Asia. This Black over White background viii framework enables real estate market analysis to attempt what defines the Asian direct and indirect real estate sectors; what is being measured; how it behaves (in terms of price and non-price factors); how it is structured and how it effectively achieves the objectives of sustainable total returns and manageable real estate market uncertainty. Managing real estate market uncertainty optimally is achieved at the portfolio level through real estate asset allocation. This is important because the real estate portfolio is able to virtually eliminate the unique (i.e. specific) uncertainties among the various Asian real estate sectors; thus retaining within the portfolio only the systemic (i.e. market-wide) uncertainty. Apart from real estate asset allocation, the alternative and modern approach to risk management at the portfolio level, is the value-at-risk (VaR) approach. Another modern and important alternative to coping with uncertainty is real option analysis and pricing that help to better define real estate market uncertainty in extent and time. Real option analysis and pricing also represent uncertainty via a decision tree and the risk-neutral probability conception, in order to comprehend how uncertainty impacts on the value of real estate investment decisions. The pricing of uncertainty is based on the risk-free hedge security conception. These are best examined at the micro level of the investment in a real estate development opportunity on vacant land. Nevertheless, the real estate sectors in Singapore and Asia offer promising prospects since the Asian currency crisis of 1997. It is now timely to take stock and make an assessment of how the sectors would pan out for the future, Ill into at least rest the next century. I are very pleased to present our thinking and research in international real estate with particular emphasis on Asia. The region’s vast potential for real estate is itself a large incentive for international real estate research and education that has inspired me to document the significant work I have done over the years. Black over White background ix I wish all readers a pleasurable reading of this book, and I thank you sincerely for your support without which the publication of this book would be made all the more difficult. Dr HO, Kim Hin / David Honorary Professor (University of Hertfordshire, UK) (International Real Estate & Public Policy) March 2021.

The Versatility of the Real Estate Asset Class - the Singapore Experience

The Versatility of the Real Estate Asset Class - the Singapore Experience
Author: Kim Hin David HO
Publisher: Partridge Publishing Singapore
Total Pages: 225
Release: 2021-02-22
Genre: Law
ISBN: 1543763618

Chapter 1 takes a close look at two types of heterogeneous investors (momentum and disposition) to form a unique difference model, to interpret housing price dynamics. Three parameters are crucial, namely, auto-correlation, the rate of mean reversion and the contemporaneous adjustment towards long-term equilibrium price. The key implication is that the 2006 boom of the Singapore private housing market does not offer as large a magnitude as that from the price gain in the 1990’s boom-and-recovery over the long-term. Singapore’s private housing market is low risk, offering stable returns owing to virtually no divergence even in the speculative 1990s. The best way to invest is to consider the momentum strategy and avoid the herd behaviour for profit sustainability. For policy makers, the Singapore private housing market is over-damped in the long run. Chapter 2 adopts game theory to look at the private residential development oligopolistic market; the determination of residential development sale prices in an uncertain market and under incomplete information of competing developers; the dynamic interaction among developers; the time lags of the development project completion from project start; and the launching of the residential development for sale before completion and the residential development’s own capacity constraints. Developers tend to cooperate for long-term benefit, leading to a sales slowdown. Relatively high profits, earnable in the first few periods, provide an allowance to price undercut others, to sell much faster. First-mover advantage in a new market is evident. As uncertainty rises, prices decrease while price variability increases. Chapter 3 looks at the institutional nature of legal origin and the total returns (TRs), derived from investing in a country’s direct real estate, and via the adoption of a multi-factor arbitrage pricing theory (APT) model. The 1st and 4th order autoregressive model is adopted to de-smooth the TRs. De-smoothed data is used in conjunction with 2 macroeconomic variables (real GDP growth rate and interest rate) and 1 real estate risk factor (vacancy rate) to form the multi-factor structural model. A pooled panel analysis is conducted with the law-system dummies, denoting British legal origin and French legal origin, and the factor loadings (i.e. the sensitivity of the risk factor to the TRs). Macroeconomic and real estate risk factors in equilibrium affect the TRs. Vacancy rate commands high and significant risk premium owing to its direct impact on the TRs, relative to GDP growth rate and interest rate. Chapter 4 is concerned with the real estate mezzanine investment (REMI), a new financial instrument for Asia’s real estate market, and examines the REMI structure, the measurement and characteristics of its risks and returns via a forward-looking binomial asset tree (BAT) model. Risk neutral pricing probability is adopted. REMI bears more risk than typical commercial bank loans, resulting in higher interest rates than pure equity. Different risk issues focus on two major sources - the financial loan to value (LTV) ratio risk and the real estate and capital markets risk. Chapter 4 fulfils the need to close the gap concerning the REMI structure and performance in the steady state, utilizing reliable, authoritative information and data sources. Lastly, Chapter 5 offers this book’s conclusion.