We identify and examine the performance of frontier investments from 2002 to 2017. Using fine wine as a setting, we find that the trade frequency and value of frontier investments in the form of Alpine wines have increased in recent years, leading to a rise in their prices above inflation rates. We further document that this frontier investment has been favorable in terms of risk-adjusted returns and volatility for investors. We also observe that the inclusion of frontier wines in a financial portfolio is favorable for investors, both in terms of returns and diversification benefits, due to low correlation coefficients. The identification and investment into frontier assets appears beneficial for investors looking for new opportunities. (JEL Classifications: C60, G11, Q11)

Major changes affecting Agricultural Economics include: level and sources of funding, increased accountability, a renewed emphasis on teaching, increasing university and college linkages, an evolving student base, and the continuing adoption of educational technology. Major implications include: broader faculty teaching involvement, agribusiness program development, expanding multidisciplinary majors, Ph.D. program modifications for teacher preparation, expanding professional M.S. degrees, graduate program size and specialization reductions, alternative financing of graduate education, and faculty training in teaching methods. Teaching represents a major growth opportunity for Agricultural Economics, but it remains to be seen whether the discipline takes advantage of this opportunity.

In this paper we report on one component of a three-year study into the use of digital technologies for summative performance assessment in senior secondary courses in Western Australia. One of the courses was Italian Studies, which had an oral communication outcome externally assessed with an oral performance for which students travelled to a central location and undertook an interview with two assessors. Apart from the logistical difficulties for both students and the organising body, this method did not leave an enduring record of the process, and raised questions about the reliability of the assessment. Over the three years of this study, we tried several approaches to using digital technology to assess oral performance, including a portfolio of sub-tasks leading up to a video-recorded oral presentation, a computer-based exam, a video recorded interview, and an online exam that included oral audio-recordings. For each of the years online marking tools supported two methods of drawing inferences about student performance from the representations: the more traditional analytical method and the comparative pairs method. Rasch analysis of the results of the two methods showed that both were at an acceptable level of reliability. Overall, students and teachers reported that they liked using audiovisual recordings and online performance tasks for revision but not for summative assessment. The study also demonstrated that the scores from externally marked computer-based oral tasks carried out in class time correlated highly with the scores from traditional face-to-face recorded interviews. Therefore, online assessment of oral performance appears to be an equally effective way to facilitate assessment when compared with traditional methods and offers other affordances, such as convenience and access from a variety of locations, as well as providing an enduring record of student performance.

This review article aims to address the paucity of information regarding professional portfolio development for therapeutic radiographers. It will review briefly the current literature regarding continuous professional development (CPD) for therapeutic radiographers and add to the on going debate regarding the monitoring and enforcement of a mandatory CPD scheme. It will recapitulate the applications of professional development portfolios and equip therapeutic radiographers with the basic knowledge and skills to undertake the process of portfolio development, ultimately leading to a product that provides evidence of CPD.

The rapid growth in web technologies illustrates how global attitudes to paper are changing. The world of radiotherapy is responding to this by steadily replacing paper-based systems with digital equivalents. In this time when the world is swapping thousands of years of dependence on ink and paper for pixels and screens, representing professional development in a large file of paper may soon seem incongruous.

This paper aims to introduce the concept of a “virtual portfolio” along with the rationale for using it. In the context of radiotherapy professional practice, the virtual portfolio's function mirrors that of a conventional portfolio, but uses electronic media to collate and present the evidence. Potential advantages and disadvantages of the virtual portfolio are presented, along with a brief overview of the software tools that can assist with the transition away from paper.

Since a portfolio is ultimately a very individual expression of personal and professional development, it is obvious that the virtual portfolio will not be suitable for everyone. It can be seen that electronic media offer some useful tools to the portfolio developer, but ultimately it is the content and use of the portfolio rather than the format that is of importance.

This study analyzes the potential risk-reduction gains from naive diversification among market advisory services for corn and soybeans. The total possible decrease in risk through naive diversification is small, mainly because advisory prices are highly correlated on average. Moreover, because marginal risk-reduction benefits decrease rapidly with size and the cost of holding the portfolios increases linearly due to services' subscription fees, it is optimal to limit portfolio size to a few advisory programs. Based on certainty equivalent measures and two representative risk-aversion levels, preferred portfolio sizes are between one and three programs.