bluuebunny/crossref_metadata_2025 huggingface dataset:
Most efficient tool feed direction in three‐axis CNC machining
Authors: Chen Zezhong C. , Dong Zuomin , Vickers Geoffrey W.
Published: October 2003

The objective of CNC machining is to produce mechanical parts with designed quality most efficiently. To generate CNC tool paths for machining a sculptured part using a three‐axis CNC machine, surface geometry, cutter shape and size, as well as tool path interval and direction need to be considered. In this work, the relation between the direction of a tool motion and cutting efficiency is studied. A new measure of cutting efficiency in three‐axis CNC milling – the length of effective cutting edge (ECE) is introduced. The ECE length is mathematically proven to reach its maximum when the tool cuts a sculptured surface along its steepest tangent direction at the cutter contact point. The steepest tangent direction is thus proven to be the most efficient tool feed direction in three‐axis sculptured part machining. The study identifies tool feed direction as a new control parameter in CNC tool path planning, and forms the foundation for further research on three‐axis tool path generation of sculptured parts.
Outlining organisational failure in information systems development
Authors: Goulielmos Markos
Published: October 2003

Defines the concept of “organisational failure” in information systems (IS) development, and proposes a diagnostic model drawn from research done into IS consultancy firms that develop systems using a variety of methodologies. The research involved a qualitative study aimed at the nature of the development process and the role of organisational issues in this process. The model’s elements and relationships were determined by the research findings. Presents two cases of failure that show how IS failure is rooted in organisational pathology and examine existing failure concepts. The concept and model proposed can be used by practitioners and management before and during a project for diagnosing organisational failure before it interferes with IS development and afterwards for extracting deeper rooted organisational learning from failure.
Keystroke dynamics on a mobile handset: a feasibility study
Authors: Clarke N.L. , Furnell S.M. , Lines B.M. , Reynolds P.L.
Published: October 2003

The ability of third generation telephones to store sensitive information, such as financial records, digital certificates and company records, makes them desirable targets for impostors. This paper details the feasibility of a non‐intrusive subscriber authentication technique – the use of keystroke dynamics. This feasibility study comprises a number of investigations into the ability of neural networks to authenticate users successfully based on their interactions with a mobile phone keypad. The initial results are promising with network classification performing well, achieving a 9.8 per cent false rejection rate and an 11.0 per cent false acceptance rate.
Implications of ICT for knowledge management in globalization
Authors: Ng Jimmy J.M. , Li K.X.
Published: October 2003

The purpose of this paper is to critically review the model of Hendriks and examine its suitability for the relationship of organizational knowledge management and information and communication technology (ICT). This study proposes that the impact of different organizational structures on knowledge management systems should be collectively considered. Tacit knowledge is definitely as critical as explicit knowledge in the enhancement of organizations. Action relatedness of organizational knowledge was emphasized in the model. The study intends to overcome the weakness of Hendriks’ model. The tension between knowledge workers and the organization should be investigated further when the model is adopted. Measurement of the effectiveness of ICT as a knowledge management tool should be considered.
Intrusion detection: the art and the practice. Part I
Authors: Sherif Joseph S. , Ayers Rod , Dearmond Tommy G.
Published: October 2003

Organizations more often than not lack comprehensive security policies and are not adequately prepared to protect their systems against intrusions. This paper puts forward a review of state of the art and state of the applicability of intrusion detection systems and models. The paper also presents a classification of literature pertaining to intrusion detection.
A novel approach to solve DSL network data rate problems
Authors: Ramaswamy Raju
Published: October 2003

Digital subscriber line (DSL) is a service that offers much faster Internet connection than a standard dial up connection. Crosstalk is a major impairment in DSL telecommunication networks. It degrades the upstream and downstream data rates and risks the DSL service providers ability to meet their service level agreement requirements. A novel approach to solve the upstream and downstream data rate problems is presented in this paper. The approach considered is to control the power spectral density and aggregate power level of the DSL access multiplexer.
Identifying security vulnerabilities through input flow tracing and analysis
Authors: Dimitriou Xenitellis Simeon
Published: October 2003

A software system can be considered as a collection of data and procedures that are separated from the environment and interact with it through channels of communication. If we assume that the system does not contain any Trojan horse code, then the only way it can be attacked is during the processing of input through interactions with the environment. While most methodologies attempt to identify security vulnerabilities in the local context, proposes the use of complete input tracing that examines the source code and identifies all possible inputs from malicious sources, traces the input flow from the source until termination of use and compares the flow segments for known security vulnerability constructs. Discusses input flow tracing and its benefits such as the provision of metrics for security assurance, complete vulnerability assessment and the ability to examine combinations of vulnerabilities.
Bioethics: Power and Injustice: Iab Presidential Address
Authors: Benatar Solomon R.
Published: October 2003

A major focus within the modern bioethics debate has been on reshaping power relationships within the doctor–patient relationship. Empowerment of the vulnerable has been achieved through an emphasis on human rights and respect for individual dignity. However, power imbalances remain pervasive within healthcare. To a considerable extent this relates to insufficient attention to social injustice. Such power imbalances together with the development of new forms of power, for example through new genetic biotechnology, raise the spectre of increasing social injustice. Attention will be drawn to the need to extend the bioethics debate to include ethical considerations regarding public health. Changes in political philosophy will also be required to reshape international power relations and improve population health.
Intervention Bioethics: A Proposal For Peripheral Countries in A Context of Power and Injustice
Authors: Garrafa Volnei , Porto DorA
Published: October 2003

The bioethics of the so‐called ‘peripheral countries’ must preferably be concerned with persistent situations, that is, with those problems that are still happening, but should not happen anymore in the 21st century. Resulting conflicts cannot be exclusively analysed based on ethical (or bioethical) theories derived from ‘central countries.’ The authors warn of the growing lack of political analysis of moral conflicts and of human indignation. The indiscriminate utilisation of the bioethics justification as a neutral methodological tool softens and even cancels out the seriousness of several problems, even those that might result in the most profound social distortions. The current study takes as a theoretical reference the fact that natural resources (which all of us are) are finite, and that corporeal, pleasurable and painful matters (which affect us all) are relevant. Based on these premises, and on the concept that equity means ‘treating unevenly the unequal’, a proposal of a hard bioethics (or intervention bioethics) is introduced, in defence of the historical interests and rights of economically and socially excluded populations that are separated from the international developmental process.
Not Telling the Truth in the Patient–Physician Relationship
Authors: Silva Carlos Henrique Martins Da , Cunha Renato Luiz Guerino , Tonaco Ronaldo Borges , Cunha Thúlio Marquez , Diniz Carolina Boaventura , Domingos Gustavo Gontijo , Silva Juliana Diniz , Santos Marcelo Vitral Vitorino , Antoun Melissa Ganam , Paula Rodrigo Lobato de
Published: October 2003

The presence of truth and honesty is a permanent demand, and becomes vital the more committed and intimate a relationship is. Medical practice is relevant to this discussion when one questions whether or not a physician should always tell their patient the truth in the face of a progressive or potentially fatal disease, regarding the diagnosis, outcome, therapy and evolution of the specific disease. From this discussion we aim, with the present report, to look at the truth applicable to the patient‐physician relationship, and its ethical and moral implications; and also to look at where the Brazilian Code of Medical Ethics (BCME) and the medical literature stand regarding this issue. One concludes that there are only two moments not to tell a patient the truth: when the patient does not want to be informed, and when the truth could be iatrogenic. The question now is, when would the truth be iatrogenic? Physicians, in our opinion, would not be able to judge solitarily when the truth might be deleterious to their patient. Alternatively, we propose the appointment of a multidisciplinary commission to help the doctor with such a decision.
Is the Unified List System for Organ Transplants Fair? Analysis of Opinions from Different Groups in Brazil
Authors: Ávila Gustavo Noronha De , Ávila Gerson Antônio De , Gauer Gabriel José Chittó
Published: October 2003

In the 1960s, when Dr. Belding Scribner discovered how to accomplish the process of dialysis in a repeated way, he could not imagine that in solving such a problem others as or more difficult would appear. Given the technological progress and the impossibility of assisting all patients through the most modern methods, the medical doctor often finds himself faced with the moral dilemma of choosing which patient in the waiting list will receive the treatment. This same dilemma is amplified in the case of organ transplants.

Professionals, students, professors of the juridical and health fields, and the population in general, were interviewed as a means of documenting the moral concepts and opinions surrounding this problem. In the reality in which we find ourselves, it seems to us that deciding who lives, and the responsibility for all the events that culminate in such decisions, is still a subject left open to discussion.
Teaching Global Bioethics
Authors: Dwyer James
Published: October 2003

We live in a world with enormous disparities in health. The life expectancy in Japan is 80 years; in Malawi, 40 years. The under‐five mortality in Norway is 4/1000; in Sierra Leone, 316/1000. The situation is actually worse than these figures suggest because average rates tend to mask inequalities within a country. Several presidents of the IAB have urged bioethicists to attend to global disparities and to broaden the scope of bioethics. For the last six years I have tried to do just that. In this paper, I report and reflect on my attempts to teach bioethics in ways that address global health and justice. To begin, I discuss how I structure bioethics courses so as to move naturally from clinical ethics to health policy to global health. I then discuss ways to address key ethical issues in global health: the problem of inequalities; the nature of the duty to assist; the importance of the duty not to harm; the difference between a cosmopolitan and a political view of justice. I also discuss how teaching about global health may help to shift the emphasis in bioethics – from sensational cases to everyday matters, from autonomy to justice, and from access to healthcare to the social determinants of health. At the end of my paper, I reflect on questions that I have not resolved: how to delineate the scope of bioethics, whether my approach over‐politicises bioethics, and how to understand the responsibilities of bioethicists.
Philosophical Arguments for and Against Human Reproductive Cloning
Authors: Häyry Matti
Published: October 2003

Can philosophers come up with persuasive reasons to allow or to ban human reproductive cloning? Yes. Can philosophers agree, locally and temporarily, which practices related to cloning should be condoned and which should be rejected? Some of them can. Can philosophers produce universally convincing arguments for or against different kinds of human cloning? No.

This paper analyses some of the main arguments presented by philosophers in the cloning debate, and some of the most important objections against them. The clashes between the schools of thought suggest that philosophers cannot be trusted to provide the public authorities, or the general public, a unified, universally applicable view of the morality of human reproductive cloning.
The Vulnerable and the Susceptible
Authors: Kottow Michael H.
Published: October 2003

Human beings are essentially vulnerable in the view that their existence qua humans is not given but construed. This vulnerability receives basic protection from the State, expressed in the form of the universal rights all citizens are meant to enjoy. In addition, many individuals fall prey to destitution and deprivation, requiring social action aimed at recognising the specific harms they suffer and providing remedial assistance to palliate or remove their plights.

Citizens receive protection against their biologic vulnerability by means of an in rem right to health [care], which is more an attitude of protection than a specific programme. When individuals become susceptible, that is, biologically weak or diseased, they also increase their predisposition to additional harm, and require social actions to treat their demeaned condition. Such assistance takes the form of positive healthcare rights.

Research on human beings has been slow to observe that the subjects recruited are susceptible, especially so if research is done in less developed countries. By mislabelling them as vulnerable – a characteristic they share with all humans – sponsors avoid registering the deprivation these people suffer, and the ethical obligation to offer them remedial help.

The distinction between vulnerability and susceptibility also marks the difference between being intact but fragile – vulnerable – and being injured and predisposed to compound additional harm – susceptible. Awareness of this difference should give additional force to the rejection of double standards in research ethics.
Bioethics, Vulnerability, and Protection
Authors: Macklin Ruth
Published: October 2003

What makes individuals, groups, or even entire countries vulnerable? And why is vulnerability a concern in bioethics? A simple answer to both questions is that vulnerable individuals and groups are subject to exploitation, and exploitation is morally wrong. This analysis is limited to two areas. First is the context of multinational research, in which vulnerable people can be exploited even if they are not harmed, and harmed even if they are not exploited. The type of multinational research likely to raise the most ethical concerns is that in which the investigators or sponsors are from a powerful industrialised country or a giant pharmaceutical company and the research is conducted in a developing country. Second is the situation of women, who are made vulnerable in cultural settings or in entire countries in which they are oppressed and powerless. In the face of cultural values and practices, or governmental policies, these women suffer serious consequences for their health and even lives. Examples are provided, and it is suggested that in some cases vulnerable individuals can be harmed but not exploited. On the positive side, recent developments reveal a new awareness of exploitation and efforts to enhance the ability of developing countries to protect themselves and their citizens from exploitation at the hands of powerful sponsors of research. In addition, human rights principles are increasingly being used to monitor the actions (or inaction) of governments regarding women's reproductive rights and vulnerability with respect to HIV/AIDS, and to take remedial actions.
Public Health Ethics: Asylum Seekers and the Case for Political Action
Authors: Mcneill Paul M.
Published: October 2003

This paper is a case study in public health ethics. It considers whether there is a basis in ethics for political action by health professionals and their associations in response to inhumane treatment. The issue arises from Australia's treatment of asylum seekers and the charge that this treatment has been both immoral and inhumane. This judgement raises several questions of broader significance in bioethics and of significance to the emerging field of public health ethics. These questions relate to the role of health professionals in response to inhumane treatment of people in their charge; to the discipline of public health in light of a growing recognition of its ethical basis; and the role of public health and bioethical associations in response to ethical issues arising in a political context. It is argued that, in serious cases of humanitarian and human rights abuses affecting health and well‐being, there is a case for political action by health professionals, academic and professional institutions, and associations of public health and ethics.
Two Claims about Potential Human Beings
Authors: Persson Ingmar
Published: October 2003

It seems that at conception something is formed which, due to its genetic make‐up, has the potentiality to develop into a full‐blown human being. Many believe that in virtue of this potentiality, this organism, the human zygote or early embryo, has an intrinsic value which makes it wrong to use or produce it merely as a means to some end, e.g., some scientific end such as to produce embryonic stem cells. Against this it is here argued, first, that it does not follow from the fact that something has a potential to become a (fully developed) human being that it already is a human being (in a rudimentary sense). In fact, a human being begins to exist no earlier than a couple of weeks after conception, at the stage known as gastrulation. Thus, even granted the questionable assumption that something has intrinsic value in virtue of being a human being, the zygote will not have intrinsic value. Secondly, the value an embryo has in virtue of its potentiality to become a full‐blown human being can only be instrumental, a value as a means. But of course it cannot be wrong to treat that which has merely instrumental value as a mere means or instrument to some end.
Human Cloning: Category, Dignity, and the Role of Bioethics
Authors: Shuster Evelyne
Published: October 2003

Human cloning has been simultaneously a running joke for massive worldwide publicity of fringe groups like the Raelians, and the core issue of an international movement at the United Nations in support of a treaty to ban the use of cloning techniques to produce a child (so called reproductive cloning). Yet, even though debates on human cloning have greatly increased since the birth of Dolly, the clone sheep, in 1997, we continue to wonder whether cloning is after all any different from other methods of medically assisted reproduction, and what exactly makes cloning an ‘affront to the dignity of humans.’ Categories we adopt matter mightily as they inform but can also misinform and lead to mistaken and unproductive decisions. And thus bioethicists have a responsibility to ensure that the proper categories are used in the cloning debates and denounce those who try to win the ethical debate through well‐crafted labels rather than well‐reasoned argumentations. But it is as important for bioethicists to take a position on broad issues such as human cloning and species altering interventions. One ‘natural question’ would be, for example, should there be an international treaty to ban human reproductive cloning?
Voluntary Euthanasia: A Utilitarian Perspective
Authors: Singer Peter
Published: October 2003

Belgium legalised voluntary euthanasia in 2002, thus ending the long isolation of the Netherlands as the only country in which doctors could openly give lethal injections to patients who have requested help in dying. Meanwhile in Oregon, in the United States, doctors may prescribe drugs for terminally ill patients, who can use them to end their life – if they are able to swallow and digest them. But despite President Bush's oft‐repeated statements that his philosophy is to ‘trust individuals to make the right decisions’ and his opposition to ‘distant bureaucracies’, his administration is doing its best to prevent Oregonians acting in accordance with a law that its voters have twice ratified. The situation regarding voluntary euthanasia around the world is therefore very much in flux.

This essay reviews ethical arguments regarding voluntary euthanasia and physician‐assisted suicide from a utilitarian perspective. I shall begin by asking why it is normally wrong to kill an innocent person, and whether these reasons apply to aiding a person who, when rational and competent, asks to be killed or given the means to commit suicide. Then I shall consider more specific utilitarian arguments for and against permitting voluntary euthanasia.
Can We Help Addicts Become more Autonomous? Inside the Mind of An Addict
Authors: Spriggs Merle
Published: October 2003

I examine the impact of addiction on autonomy in terms of the standard literature on addiction – referred to also as ‘substance dependence.’1 Then in terms of the criteria for substance dependence, by developing a set of practical strategies to help people with addictions think more clearly, I test the idea whether addicts can be helped to become more autonomous. Given that unsuccessful attempts to quit constitute part of the criteria of substance dependence, I look at what goes wrong when people try to quit using a substance. The subjective experience of addiction is an important aid in understanding addiction and first person accounts and literary characterisations of addiction provide insight into the addict's mind and assist us in deciding whether addicts can be helped to become more autonomous.
Welfarism Versus ‘Free Enterprise’: Considerations Of Power And Justice In The Philippine Healthcare System
Authors: Sy Peter A.
Published: October 2003

The just distribution of benefits and burdens of healthcare, at least in the contemporary Philippine context, is an issue that gravitates towards two opposing doctrines of welfarism and ‘free enterprise.’ Supported largely by popular opinion, welfarism maintains that social welfare and healthcare are primarily the responsibility of the government. Free enterprise (FE) doctrine, on the other hand, maintains that social welfare is basically a market function and that healthcare should be a private industry that operates under competitive conditions with minimal government control. I will examine the ethical implications of these two doctrines as they inform healthcare programmes by business and government, namely: (a) the Devolution of Health Services and (b) the Philippine Health Maintenance Organization (HMO). I will argue that these doctrines and the health programmes they inform are deficient in following respects: (1) equitable access to healthcare, (2) individual needs for premium healthcare, (3) optimal utilisation of health resources, and (4) the equitable assignment of burdens that healthcare entails. These respects, as considerations of justice, are consistent with an operational definition of ‘power’ proposed here as ‘access to and control of resources.’
Partisanship in the setting and coordination of fiscal and monetary policies
Authors: Cusack Thomas R.
Published: October 2003

Abstract. The principal concerns of this paper are with the roles partisan politics have played in the making of fiscal and monetary policies within OECD countries as well as the extent to which these policies have complemented each other. It is argued that parties of the left pursue fiscal policies that are distinctly different from those pursued by the right. The critical difference is in the way these parties use fiscal policy as a corrective mechanism for dealing with macroeconomic problems: leftist parties adopt counter–cyclical fiscal policies while rightwing parties adhere to pro–cyclical fiscal stances. The paper also examines two arguments regarding monetary policy and how partisan politics affect this policy area. The first and most conventional argument sees the formal independence of the central bank from government as a means of negating partisan influences on monetary policy; the second advances the proposition that, regardless of central bank independence, monetary authorities are not politically neutral but instead share views similar to those of parties on the right–hand side of the political spectrum. Empirical analysis, using a pooled cross–section time–series design with data from 14 countries between 1961 and 1994, produces evidence in favor of the argument concerning the role of partisanship in fiscal policy; it also shows little support for the view that central bank independence inhibits partisan influences while at the same time provides support for the thesis that central banks are politically non–neutral. Thus, coordination between fiscal and monetary policies is far less likely to occur when left–wing parties are in power.
Retailers' Adoption Decision of New Consumer Durables
Authors: Hultink Erik Jan , Thölke Jürg M. , Robben Henry S.J.
Published: October 2003

In today's competitive environment, members of the market chain, such as retailers and suppliers, are becoming increasingly powerful. It has been established in the packaged goods area that the ability to get new products on the shelves' is an essential factor in the success of a new product. However, no research exists to date that relates variables investigated in packaged goods contexts to retailers' adoption decision of new consumer durables. The present study focused on the dimensions that influenced the new product adoption decision by 291 retailers of consumer durables by exploring the relative importance of 26 adoption criteria across seven product categories. The results largely supported previous findings but simultaneously extended that body of knowledge. For example, six dimensions characterized the new product adoption decision in our sample of Dutch retailers. We discuss implications of this study and provide directions for future research in this area.
Critical Technology Management Issues of New Product Development in High‐Tech Companies
Authors: Scott George M.
Published: October 2003

This article reports the results of a study of management of technology issues (unresolved technology management problems) in the new product development (NPD) processes of high‐tech product companies. Using a three‐questionnaire DELPHI methodology that includes academic and industry participants, the study ranks 24 technology management issues of NPD in terms of importance. A dominant “Number One Issue” is identified as Strategic Planning for Technology Products.
The Effect of “Front‐Loading” Problem‐Solving on Product Development Performance
Authors: Thomke Stefan , Fujimoto Takahiro
Published: October 2003

In recent years, there has been a growing interest in the link between problem‐solving capabilities and product development performance. In this article, the authors apply a problem‐solving perspective to the management of product development and suggest how shifting the identification and solving of problems—a concept that they define as front‐loading—can reduce development time and cost and thus free up resources to be more innovative in the marketplace.

The authors develop a framework of front‐loading problem‐solving and present related examples and case evidence from development practice. These examples include Boeing's and Chrysler's experience with the use of “digital mock‐ups” to identify interference problems that are very costly to solve if identified further downstream—sometimes as late as during or—after first full‐scale assembly.

In the article, the authors propose that front‐loading can be achieved using a number of different approaches, two of which are discussed in detail: (1) project‐to‐project knowledge transfer—leverage previous projects by transferring problem and solution‐specific information to new projects; and (2) rapid problem‐solving—leverage advanced technologies and methods to increase the overall rate at which development problems are identified and solved. Methods for improving project‐to‐project knowledge transfer include the effective use of “postmortems,” which are records of post‐project learning and thus can be instrumental in carrying forward the knowledge from current and past projects. As the article suggests, rapid problem‐solving can be achieved by optimally combining new technologies (such as computer simulation) that allow for faster problem‐solving cycles with traditional technologies (such as late stage prototypes), which usually provide higher fidelity.

A field study of front‐loading at Toyota Motor Corporation shows how a systematic effort to front‐load its development process has, in effect, shifted problem‐identification and problem‐solving to earlier stages of product development. They conclude the article with a discussion of other approaches to front‐load problem‐solving in product development and propose how a problem‐solving perspective can help managers to build capabilities for higher development performance.
From Experience: Harnessing Tacit Knowledge to Achieve Breakthrough Innovation
Authors: Mascitelli Ronald
Published: October 2003

The ability to create a stream of revolutionary new products can represent a sustainable competitive advantage for firms in almost any industry. Whereas evolutionary product improvements often follow predictable trajectories, breakthrough innovations involve unexpected leaps of creativity and insight. Despite its strategic importance, however, little is known about the process by which innovators achieve these valuable breakthroughs. This article proposes that breakthrough innovations result from the harnessing of tacit knowledge possessed by individuals and project teams. Tacit knowledge lies below the surface of conscious thought and is accumulated through a lifetime of experience, experimentation, perception, and learning by doing. Managers who can tap into this vast pool of creative energy can elevate the innovative capabilities of their teams well beyond the incremental and mundane.

The article begins by establishing the vital importance of breakthrough innovations to the competitiveness of firms. This strategic mandate is followed by a brief discussion of the nature and implications of tacit knowledge in the context of innovation. The remainder of the article describes three mutually reinforcing methods for encouraging the explication and sharing of tacit knowledge among design team members. The ultimate goal is to establish a generative atmosphere for breakthrough innovation, in which divergent thinking, improvisation, and artistic creativity merge with the practical demands of the product development process.

The first step toward harnessing the creative power of tacit knowledge is to foster the emotional commitment and deep personal involvement of design team members. Managers can accomplish this goal through the development of inspiring “innovation stories,” encouragement of reasonable risk‐taking and experimentation, building of unique team identities, and displaying unbridled confidence in a team's creative abilities. Once the emotional commitment of team members has been assured, two techniques are proposed as catalysts for breakthroughs derived from tacit knowledge. These methods are based on evidence that intimate physical interaction during the creative process, both person to object and person to person, may be a catalyst for tacit insights. The first technique highlights the use of early and frequent prototyping as a powerful focal point for the explication of tacit knowledge from both the design team and potential customers. The second technique involves the encouragement of face‐to‐face interaction between innovators during product development, thereby enabling creative improvisation and real‐time knowledge sharing.

Several implications for managers are highlighted, including the need for a greater emphasis on employee retention, the importance of developing a nurturing environment for innovation, and the value of intimate physical interaction, including early prototyping, indwelling with customers, and co‐location of teams wherever possible.
Pioneering Advantage in New Service Development: A Multi‐Country Study of Managerial Perceptions
Authors: Song X. Michael , Di Benedetto C. Anthony , Song Lisa Z.
Published: October 2003

Pioneering advantage in manufacturing firms has received much attention in the management and marketing literature. Few research studies, however, have been conducted to investigate the pioneering advantages and disadvantages involved in new service development, especially across several geographic regions. We build a theoretical framework of pioneering advantage in service industries based on the distinguishing characteristics of services. From this framework, we develop a set of testable propositions about the importance of several types of pioneering advantage (economic, preemptive, technological, and behavioral advantages) to service managers. Specifically, we propose that all of these types of pioneering advantages are important to service managers, and that these managers perceive that pioneering results in improved firm performance. We also propose that, due to the distinguishing characteristics of services such as intangibility and heterogeneity, service managers will not perceive the risks of pioneering in a service industry to be severe. In addition, we propose that certain types of pioneering advantage will be more important to service managers in Western countries than in Asian Pacific countries due to cultural and business environmental differences. In particular, we propose that service managers from Western firms perceive preemptive advantages of pioneering to be more important than do their Asian Pacific counterparts, and service managers from Asian Pacific firms perceive behavioral advantages of pioneering to be more important than do their Western counterparts.

To test our propositions empirically, we develop a set of pioneering principles from the literature. We then collect and analyze data from a sample of 982 senior managers in service industries from nine countries: the United States, the United Kingdom, Germany, Japan, China, Taiwan, Hong Kong,1 South Korea, and Singapore. We find evidence of several significant cross‐cultural differences consistent with our propositions. In fact, seven of the eight propositions are strongly or partially supported. The only nonsupported proposition concerned the importance of technological advantage. We find that technological advantages of pioneering are much less important to service managers than are other pioneering advantages. We conclude with strategic recommendations for managers involved in new service development and international or global competition, and provide directions for future research. We note that the insights from this study can help managers from both the West and the Asian Pacific region to better understand their global competitors who pursue a new service pioneering strategy, and can potentially help them select entry deterrence strategies more effectively.
Mobility‐Tenure Decisions and Financial Credit: Do Mortgage Qualification Requirements Constrain Homeownership?
Authors: Zorn Peter M.
Published: October 2003

Housing analysts have generally assumed that mortgage qualification requirements significantly constrain homownership, however there has been no empirical evidence of this effect. By explicitly modeling and estimating the impact of mortgage qualification requirements on households' mobility and tenure decisions, this paper provides the first empirical evidence of the effect of these criteria on homeownership. The estimation results suggest that in 1986, mortgage qualification criteria did not provide a large constraint on homeownership. However, they also show that the impact of these criteria increases as the flow costs of owning decrease relative to those of renting. This implies that the nationwide significance of these constraints will vary with fluctuations in the macro economy, and that policies designed to limit the effect of these requirements will be more successful in economic environments favorable to homeownership.
Current Wealth and Tenure Choice
Authors: Jones Lawrence D.
Published: October 2003

This paper argues that a central implication of tenure transition models is that the timing of a household's initial switch to ownership is particularly dependent upon its current net worth. In contrast, permanent income, largely derived from human capital, is assumed to be the dominant component of the relevant household budget constraint in conventional tenure choice models. These contending propositions are tested using a Canadian micro database. Consistent with the tenure transition approach, current nonhuman wealth is found to have the primary budgetary role in tenure mode decisions of young households.
Impact Fees and the Price of New Housing: An Empirical Study
Authors: Delaney Charles J. , Smith Marc T.
Published: October 2003

Development exactions in the form of impact fees are being used increasingly by local governments to fund the cost of providing public services necessitated by growth and development. This paper presents the results of an empirical study designed to ascertain the extent to which impact fees are capitalized into the price of new, single‐family dwellings. On June 3, 1974, the city of Dunedin, located in Pinellas County, Florida, began assessing impact fees of $1,150 against all new, single‐family construction. Using data on 5,839 new home sales in Dunedin and three other cities in Pinellas County from 1971–1982, it was found that builders were able to pass forward the total cost of impact fees to new home buyers. However, the price differential due to impact fees for new dwellings in Dunedin compared to the price of new dwellings in the other three cities disappeared after approximately six years. This is explained by the nature of the fee structure in Dunedin, adjustments in factor costs, increases in the price of housing in competing cities, and unrealized expectations regarding the benefits to be provided by impact fee collections.
Relocation Opportunities and Mortgage Default
Authors: Giliberto S. Michael , Houston Arthur L.
Published: October 2003

This paper presents a theoretical model of residential mortgage default when borrowers face beneficial as well as costly relocation opportunities. It amplifies and extends previous work by providing explicit conditions leading to default. The model also establishes when a borrower's relocation decision and default decision are dependent and when they are not.

A central result is that there is a range of book equity wherein the decision to default is not determined solely by the current level of equity or the borrower's ability to continue the mortgage payments. Rather, various costs and benefits, both tangible and intangible, enter into the decision. Specific conditions are identified that lead to relocation without default, default and relocation, and no default or relocation. The effects of changes in the variables upon default probability are presented.

Assuming that the borrower does not wish to retain ownership in the property, the model also predicts whether an individual borrower will choose prepayment or default when a relocation is made. The choice depends on the value of the relocation opportunity faced by the borrower, as well as financial variables such as house value, mortgage balance, and transaction costs. This finding suggests that existing empirical analyses of default may have omitted explanatory variables.
The Motivation for Institutional Real Estate Sales and Implications for Asset Class Returns
Authors: Guilkey David , Miles Mike , Cole Rebel
Published: October 2003

Since real estate assets are sold infrequently, analyses that use samples of exclusively sold properties to estimate pricing models may be seriously in error. This paper uses data on samples of sold and unsold properties and an appropriate statistical methodology to evaluate the extent of this bias. The results clearly show that it is important to control for sales motivations and that pricing equations that ignore this source of bias may be misleading.
Estimating Homeownership Costs: Owners' Estimates of Implicit Rents and the Relative Importance of Rental Equivalence in the Consumer Price Index
Authors: Francois Joseph F.
Published: October 2003

This paper discusses the relative importance of Rental Equivalence (REQ) in the U.S. Consumer Price Index. A hedonic model of rents is estimated, and the resulting parameters are then used to compare hedonic estimates of implicit rents to homeowner estimates like those actually used to estimate the REQ expenditure weight. There are several reasons why hedonic estimates might be below actual implicit rents, and these effects are controlled for in the model. Owner estimates of implicit rents are then shown to be comparable to such hedonic estimates. Results support the method used to estimate the expenditure weight.
Housing Price Indexes from the 1974–1983 SIMSA Annual Housing Surveys
Authors: Thibodeau Thomas G.
Published: October 2003

This paper reports residential real estate price indexes computed from the Standard Metropolitan Statistical Area (SMSA) Annual Housing Survey (AHS) for the 1974 through 1983 period. During this ten‐year period, the U.S. Bureau of the Census conducted detailed surveys of the housing stock in sixty metropolitan areas in a three to four year cycle. This information is used to compute tenure specific hedonic housing price indexes for: (1) the entire metropolitan housing market; (2) separately for properties located in the central city and in the suburbs (whenever central city locations are identified); and (3) for three points in the dwelling quality distribution‐for substandard housing (using the definition employed by the U.S. Department of Housing and Urban Development), for new housing (housing less than three years old and not substandard), and for existing standard quality housing (everything else). In addition, the hedonic prices reported here are adjusted for the finite sample bias introduced when taking the exponential of a lognormally distributed random variable.
Mortgage Borrower Repayment Behavior: A Microeconomic Analysis with Canadian Adjustable Rate Mortgage Data
Authors: Zorn Peter M. , Lea Michael J.
Published: October 2003

In this paper we estimate a model of mortgage borrower behavior using micro‐level data on Canadian borrowers with rollover mortgages—a form of adjustable‐rate mortgage. Our results suggest that the probability of default rises with a decrease in housing equity and an increase in the mortgage contract rate; however the size of these changes is relatively small. They also show that partial prepayment is sensitive to fluctuations in the rates of return from investing in housing versus other assets. For the United States experience, our results suggest that, relative to fixed‐rate mortgage borrowers, adjustable‐rate mortgage borrowers are more likely to default and less likely to prepay.
On the use of the Financial Option Price Model to Value and Explain Vacant Urban Land
Authors: Geltner David
Published: October 2003

This paper reviews the financial option model of under‐utilizing urban land, with primary attention to the question of whether and how the model might move beyond the academic realm toward practical and quantitative applications. It is argued that the theoretical underpinnings that give the option model such power in the financial securities field do not extend to land applications, making it more important to justify the model empirically. Numerical analysis using a “decision analysis” type model of land option value is used in the paper to help guide and focus such empirical study. It is noted that while the option model focuses primary attention on uncertainty in future building values as the cause of land being held undeveloped, previous deterministic models focused on expected future growth in such values as the main cause for land speculation. As these two causes can have different policy implications, it would be desirable to use empirical analysis to gauge their relative importance. A strategy for empirically testing the option model of land is suggested, and concludes that definitive empirical tests will be difficult to achieve, in part because of the subjective nature of many of the model inputs.
The Asset Approach to Pricing Urban Land: Empirical Evidence
Authors: Capozza Dennis R. , Schwann Gregory M.
Published: October 2003

Many papers have attempted to explain Intelmetropolitan variations in the price of housing using multi‐equation models of the metropolitan housing market. This paper uses a long‐run equilibrium urban asset model to explain such variations. The model builds upon previous models that introduce uncertainty into the dynamic urban model of land conversion. The empirical results strongly support the asset approach to valuing land in urban areas.
Credit Rationing and Government Loan Programs: A Welfare Analysis
Authors: Smith Bruce D. , Stutzer Michael J.
Published: October 2003

Asymmetric information about borrower default probabilities may lead to inefficient credit rationing of low‐risk borrowers in otherwise competitive markets. In a simple model having these properties, we show that some types of government loan programs, such as loan guarantees issued through lenders, might improve economic efficiency. But the incentive for high‐risk borrowers to misrepresent their loan quality is worsened by other government loan programs, notably those that try to target aid directly to rationed borrowers. As such, cost‐effective programs may increase inefficiency. This surprising result highlights the need to conduct model‐specific policy analyses, as opposed to analyses based on model‐free performance indicators.
Social Returns to Housing and Other Fixed Capital
Authors: Mills Edwin S.
Published: October 2003

This paper addresses the efficiency of the allocation of the capital stock between housing and other types of private capital. Using national income data from 1929 to 1986 the returns to housing capital relative to all other private fixed capital are computed. The analysis indicates that the real returns to capital have been much smaller and much more variable for housing than for non‐housing fixed capital in the U.S. economy.
Inferring an Investment Return Series for Real Estate from Observations on Sales
Authors: Quan Daniel C. , Quigley John M.
Published: October 2003

Accurate measurement of the returns to real estate investment are essential to sound analysis. This paper improves upon the traditionally employed method—collecting comparable sales data. A dynamic model of real estate appraisal is developed in which agents have incomplete information, heterogeneous search costs, and varying expectations. Various types of simulation analysis of the model indicate it performs best in the sense that the return estimate converges to the true value faster than other simpler rules.