Is the Short Rate Drift Actually Nonlinear?

Aït-Sahalia (1996) and Stanton (1997) use nonparametric estimators applied to short-term interest rate data to conclude that the drift function contains important nonlinearities. We study the finite-sample properties of their estimators by applying them to simulated sample paths of a square-root diffusion. Although the drift function is linear, both estimators suggest nonlinearities of the type and magnitude reported in Aït-Sahalia (1996) and Stanton (1997). Combined with the results of a weighted least squares estimator, this evidence implies that nonlinearity of the short rate drift is not a robust stylized fact.     

Regional sustainability: How useful are current tools of sustainability assessment at the regional scale?

Sustainability assessment methods are primarily aimed at global, national or state scales. However, modelling sustainability at finer spatial scales, such as the region, is essential for understanding and achieving sustainability. Regions are emerging as an essential focus for sustainability researchers, natural resource managers and strategic planners working to develop and implement sustainability goals. This paper evaluates the effectiveness of current sustainability assessment methods - ecological footprint, wellbeing assessment, ecosystem health assessment, quality of life and natural resource availability - at the regional scale. Each of these assessment methods are tested using South East Queensland (SEQ) as a case study. It was selected because of its ecological and demographic diversity, its combination of coastal and land management issues, and its urban metropolitan and rural farm and non-farm communities. The applicability of each of these methods to regional assessment was examined using an evaluation criteria matrix, which describes the attributes of an effective method and the characteristics that make these methods useful for regional management and building community capacity to progress sustainability. We found that the methods tested failed to effectively measure progress toward sustainability at the regional scale, demonstrating the need for a new method for assessing regional sustainability.     

Experiential Learning – A Case Study of the Use of Computerised Stock Market Trading Simulation in Finance Education

Abstract

Finance is a popular programme of study in UK higher education despite it being a challenging subject that requires students to understand and apply complex and abstract mathematical models and academic theories. Educational simulation is an active learning method found to be useful in enhancing students’ learning experience, but there has been limited pedagogic research attention on its use in finance education within the UK. This paper, utilising an on-line survey, provides a snapshot of the current usage of finance-related simulations across the 97 UK universities offering finance programmes. The paper also reports the findings of a case study that offers insights into the effectiveness of introducing computerised simulation into a postgraduate finance course from both a student and tutor perspective. It highlights an enhancing learning experience for students through concrete experience and reflective observation, increasing their understanding of difficult and complex finance concepts.     

Honesty, Individualism, and Pragmatic Business Ethics: Implications for Corporate Hierarchy

The boundaries of honesty are the focal point of this exploration of the individualistic origins of modernist ethics and the consequent need for a more pragmatic approach to business ethics. The tendency of modernist ethics to see honesty as an individual responsibility is described as a contextually naive approach, one that fails to account for the interactive effects between individual choices and corporate norms. By reviewing the empirical accounts of managerial struggles with ethical dilemmas, the article arrives at the contextual preconditions for encouraging the development of reflective moral agents in modern corporations.     

The effect of experience with a brand imitator on the original brand

Imitating the look of an existing successful brand is a common occurrence in today's crowded marketplace. It was found that a negative experience with an imitator brand increased the evaluations of the original brand. A positive experience with the imitator was shown to have the opposite effect, and there was a decrease in the evaluations of the original brand. Subjects also indicated they would be likely to purchase the positive imitator over the original at only a 10 percent price reduction.     

Business models among SMTEs: identifying attitudes to environmental costs and their implications for sustainable tourism

This paper examines how environmental resources and costs feature in business models of small- and medium-sized tourism enterprises (SMTEs). Several studies have pointed to the generally positive nature of the relationship between the economic and environmental performance of tourism firms. Yet, although business models act as a vector between these aspects of firm performance, they have been overlooked in sustainable tourism discourse. The paper reports findings from discussion groups of SMTE businesses in South West England during the global economic downturn. Environmental costs and cost control were afforded relatively little importance in terms of value creation; conversely, there was a strong and predictable emphasis on revenue generation. Indirect tactics emerged for dealing with guests’ environmental behaviours which reflected this prevailing commercial logic. Green credentials were routinely de-emphasized, sometimes regarded as liabilities, in a form of greenhushing. Responses were framed by reference to social media and how online reviews may negatively impact on future value capture. Conceptually, the business model emerged as an important lens for understanding how environmental resources and costs were valourized. The paper highlights the need to ensure that contemporary approaches to environmental management in SMTEs reflect the current and fast-changing conditions that frame business models.     

GSE Activity and Mortgage Supply in Lower-Income and Minority Neighborhoods: The Effect of the Affordable Housing Goals

I estimate the credit supply effect of the Underserved Areas Goal (UAG), which establishes GSE purchase goals for mortgages to lower-income and minority neighborhoods. Taking advantage of discontinuous census tract eligibility rules and abrupt changes in tract eligibility, I find some evidence of a small UAG effect on GSE purchases and mortgage originations, without crowding-out of FHA and subprime lending. The results also suggest that the GSEs exploit the law??s lack of precision-targeting, yielding effects that might diverge from the law??s intent.     

Clinical negligence in the UK: throwing the baby out with the bath water?

As the total cost of clinical negligence claims has grown in the UK in recent years, calls for reform have resurfaced. The government now plans a White Paper on the subject next years. This paper assesses some of the economic arguments surrounding such reform. It suggests that the principle of negligence performs a useful economic function, that there is sum uncertainty surrounding the precise costs of the UK's clinical negligence, and that costs of alternative systems may sometimes be larger than they first appear.