Swing accidents within the European region

Abstract

This study was conducted to gain greater awareness and understanding of the issues and events which lead to swing accidents; in particular, to provide indices for determining preventive measures concerning swing accidents by means of analyzing accident data. A secondary objective was to find out the potential use for data collected by means of the European Home and Leisure Accident Surveillance System (EHLASS)

All twelve Member States of the European Community in 1993 were asked for information on accidents involving swings recorded by EHLASS. Eight countries provided information on a total of more than 5,000 accidents. Based on this information it was concluded that every year in the European Community about 70,000 people have to be treated at an Accident and Emergency Department for an injury due to a swing, i.e. eleven victims per 10,000 children up to fifteen years of age. On average, half of the accidents involving playground equipment refer to swings. Swing accidents result in general in more severe injuries (based on the proportion of hospital admissions and fractures) than other home and leisure accidents recorded by EHLASS. Three quarters of the accidents refer to falls from a height. The location varies largely from country to country. The most common injuries are arm fractures and contusions of the head. The paper also goes into the differences noted for the countries included in the analyses. It is concluded that accidents involving swings result in severe injuries and form a serious problem, especially for children up to fifteen years of age. Many similarities between the countries were noted, except for the location of the accident. EHLASS has a considerable potential to make a substantial contribution to consumer safety in Europe     

Robustness and sensitivity analysis of risk measurement procedures

Measuring the risk of a financial portfolio involves two steps: estimating the loss distribution of the portfolio from available observations and computing a ‘risk measure’ that summarizes the risk of the portfolio. We define the notion of ‘risk measurement procedure’, which includes both of these steps, and introduce a rigorous framework for studying the robustness of risk measurement procedures and their sensitivity to changes in the data set. Our results point to a conflict between the subadditivity and robustness of risk measurement procedures and show that the same risk measure may exhibit quite different sensitivities depending on the estimation procedure used. Our results illustrate, in particular, that using recently proposed risk measures such as CVaR/expected shortfall leads to a less robust risk measurement procedure than historical Value-at-Risk. We also propose alternative risk measurement procedures that possess the robustness property.     

Rock art tourism in the uKhahlamba/Drakensberg World Heritage Site: obstacles to the development of sustainable tourism

This paper focuses on rock art tourism, a highly vulnerable heritage of broad public interest, only sustainable within an effective management framework. The paper explores tourism management in South Africa's uKhahlamba-Drakensberg World Heritage Site, inscribed in 2000 for its natural landscapes and its exceptional rock art heritage. In practice, nature dominates the area's tourism and management dynamics. Current tourism patterns, markets and frequencies, together with rock art's low place within tourist agendas, are described. This situation is shown to be a legacy of European Alpine romanticism, and the political rejection of indigenous cultural heritage prior to 1994, still expressed through visitor patterns and marketing policies. Despite rock art needing tourism to valorise its conservation, and being recognised by commentators and the state as a viable route to tourism development, heritage conservation, socio-economic regeneration and cultural empowerment, the failure to reform entrenched and ineffective tourism/conservation governance and management systems is exposed. The problems affecting rock art tourism have allowed the retention of unwelcome values from South Africa's pre-democratic era, risk the loss of World Heritage site status, the destruction of globally outstanding art works and waste an important opportunity to expand and diversify sustainable tourism in South Africa.     

Public/stakeholder perceptions of airline alliances: The New Zealand experience

The recent proposed alliance between Air New Zealand and Qantas is examined in the context of public opinion within New Zealand. Overall, public support for the alliance was lacking, and several reasons for this are discussed. More than half of respondents were not in favour of the Government of New Zealand having majority ownership in Air New Zealand. In this case, however, the New Zealand public act as both consumers and stakeholders. Thus, the proposed alliance raises issue of national interest as well as consumption-based considerations.     

Effect of air services availability on international visitors to New Zealand

We examine the effects of discrete changes in the availability of direct air services on the number of international visitor arrivals to New Zealand. We consider five different countries of origin and control for GDP and exchange rates. The results are mixed, suggesting that regional hubs and robust third-country carriers provide sufficient airlift for many visitors from countries without direct air services to New Zealand. We outline the resulting implications for international air services policy.     

Access regulation and infrastructure investment in the mobile telecommunications industry

While mobile virtual network operators (MVNOs) increase competition in the mobile telecommunications industry, granting market access to MVNOs may have unwanted consequences. In particular, infrastructure investment by incumbent mobile network operators (MNOs) may be smaller. This paper examines the effects of MVNO entry and access regulation on the investment behavior of MNOs. It uses firm-level data for 58 MNOs in 21 OECD countries during 2000–2008. The results suggest that mandated provision of access is related to lower investment intensity of MNOs, while voluntary access provision has no effect. Although reduced investment incentives do not necessarily correspond to under-investment, this underscores the need for those countries where MVNOs are provided access to address the issue of investment incentives.     

The Collusion-deterring Effect of Pre-attributed Supplies and the Hog Auction in Quebec

The hog/pork industry in Quebec has been going through major institutional changes since 1989, the year an electronic auction was put in place to market all of the hogs in the province. Because the auction's ability to generate high prices did not meet the expectations of hog producers, the pure auction system was replaced by a hybrid one in 1994. In this system, most of the hog supply was pre-attributed to processors at a negotiated price based on the US. price while the remainder of the provincial supply of hogs was sold through the auction. In this paper, we investigate how a seemingly inefficient marketing mechanism like pre-attributions can increase the efficiency of a usually efficient mechanism like an auction. We present theoretical arguments regarding the sustainability of collusion under the pure auction and hybrid systems in addition to analyzing auction prices with modern time series tools.     

Output and Price Determination in the Canadian Chicken Industry: Which Should Come First?

Bilateral bargaining between chicken producers and processing firms determined chicken prices in Ontario from 1995 to 2002. A significant reform in 2003 introduced a formula‐based live price that is a function of chicken producers' costs. The latter pricing mechanism reduces the risk faced by processing firms and producers because the chicken price is known when output decisions are made. However, the pricing formula also involves some risk in that the cost components may be far removed from actual costs when production is carried out. Expected farm prices under the two different pricing mechanisms are also not identical. The producers' and processors' expected utility of profits under each pricing mechanism is computed. The bargaining pricing mechanism generally yields higher expected utility for producers than the formula‐based price. Conversely, processing firms obtain a higher expected utility under the formula‐based pricing than under the bargaining framework. These conclusions critically hinge on the size of the producers' margin component in the formula‐based price. In that sense, the formula‐based pricing mechanism did not lessen the significance of relative bargaining strengths in establishing the distribution of welfare in the chicken industry. Des négociations bilatérales entre les producteurs de poulet et les entreprises de transformation déterminaient le prix du poulet vivant en Ontario de 1995 à 2002. Une formule de prix établie en fonction des coûts de production des producteurs de poulet fut introduite en 2003. Ce mécanisme réduit le risque auquel sont confrontés les transformateurs et les producteurs parce que le prix du poulet vivant est connu lorsque les décisions de production sont prises. Cependant, la formule de prix comporte aussi un risque dans le sens où la composante du coût dans la formule de prix peut être différente des coûts réels de production du poulet vivant. Les prix espérés du poulet vivant sont aussi différents dans les deux systèmes de prix. L'utilité espérée des profits pour les producteurs et les transformateurs de poulet est calculée dans les deux mécanismes. Le modèle fondé sur la négociation génère une utilité espérée des profits plus élevée pour les producteurs que la formule de prix. À l'inverse, les transformateurs obtiennent une utilité espérée des profits plus élevée selon la formule de prix que selon le modèle fondé sur la négociation. Ces conclusions sont étroitement liées à la taille de la marge des producteurs utilisée dans le calcul de la formule de prix. Dans ce sens, l'introduction d'un nouveau mécanisme de détermination des prix n'a pas modifié l'importance du pouvoir relatif de négociation dans la distribution du surplus économique au sein de la filière canadienne du poulet.     

Efficacitè technique et coûts de production dans les secteurs laitiers du Québec et de l'Ontario

This study aims to estimate the level of technical efficiency in milk production and to analyze the relationship between the costs of production, the level of technical efficiency and farm size. Furthermore, the socio-economic variables that characterize the most efficient farms and those producing at lower cost are identified. The results indicate that in Quebec, the level of technical efficiency increases with herd size, but this increase is very small. In Ontario, herd size is not significant to explain technical efficiency. The level of education, the participation in milk recording programs, expenditures per cow fort are and artificial insemination, the quality of hay and the number of years as member of a management club are a11 variables that characterize efficient farms.     

Infrastructure investment and optimal access regulation in the different stages of telecommunications market liberalization

In this paper, we compare the optimal access regulation under three different market configurations that approximate the different stages of telecommunications market liberalization. We show that in the first stage of market liberalization the regulator has to balance between static efficiency and investment and that the optimal access price may be above marginal cost. In the second stage, two different outcomes are possible. If entrants tend to underinvest, the regulator balances between static efficiency and investment. If entrants tend to overinvest, the regulator sets the access price as low as possible in order to prevent or limit infrastructure duplication. Interestingly, we find that in the third stage of market liberalization the regulator may decide to promote infrastructure duplication and to set the access price above the price in the first stage of market liberalization, even if telecommunications network operators tend to overinvest in infrastructure duplication.