131 research outputs found
Controlling excess capacity in common-pool resource industries: the transition from input to output controls
Overcapacity is a major problem in common-pool resources. Regulators increasingly turn from limited entry to individual transferable use rights to address overcapacity. Using individual vessel data from before and after the introduction of individual harvest rights into a fishery, the paper investigates how characteristics of rights, scale of operations and transition period affect changes in individual and fleet capacity utilisation and excess capacity. The results indicate that individual harvest rights in both theory and practice offer the potential to address the problem of overcapacity in common-pool resources currently managed with limited-entry regulations
Incentive-based approaches to sustainable fisheries
The failures of traditional target-species management have led many to propose an ecosystem approach to fisheries to promote sustainability. The ecosystem approach is necessary, especially to account for fishery-ecosystem interactions, but by itself is not sufficient to address two important factors contributing to unsustainable fisheries: inappropriate incentives bearing on fishers and the ineffective governance that frequently exists in commercial, developed fisheries managed primarily by total-harvest limits and input controls. We contend that much greater emphasis must be placed on fisher motivation when managing fisheries. Using evidence from more than a dozen natural experiments in commercial fisheries, we argue that incentive-based approaches that better specify community and individual harvest or territorial rights and price ecosystem services and that are coupled with public research, monitoring, and effective oversight promote sustainable fisheries
Transforming coastal and marine management: Deliberative democracy and integrated management in New South Wales, Australia
© 2020 The Authors The integrated management (IM) of coastal and marine environments is an enduring problem, particularly in multi-sectoral and jurisdictional systems, with coastal management of New South Wales (NSW), Australia being no exception. Historically, NSW coastal and marine management was dominated by ecological and economic approaches, implemented in parallel through multiple government agencies with overlapping jurisdictions. A review in 2012 of NSW marine park management recommended addressing the unintended consequences of this management approach, and the Marine Estate Management Act (2014), was established to integrate management of the whole of the NSW coast. This paper discusses the role that a deliberative democratic approach has played in the approach to IM undertaken by the NSW Marine Estate Management Authority (MEMA). The NSW MEMA case study provides a robust reflection of the challenges identified by the literature in implementing effective integrated management, being the alignment of values, visions and methods of assessment, across multiple resources, ecosystems, stakeholders and administrative jurisdictions. Deliberative democratic approaches were used in reviewing the MEMA case to analyse its ability to address some of the challenges and realise benefits of IM. However, despite benefits being identified, a key finding is that achieving integration across multiple agencies with varied disciplinary approaches and organisational cultures, takes a significant amount of time. Even after several years, challenges remain in embedding cultural shifts and resource commitment at all levels to ensure the ongoing successful implementation of IM
‘Sub-Prime’ Water, Low-Security Entitlements and Policy Challenges in Over-Allocated River Basins: the Case of the Murray–Darling Basin
Environmental policy is often implemented using market instruments. In some cases, including carbon taxing, the links
between financial products and the environmental objectives, are transparent. In other cases, including water markets, the
links are less transparent. In Australia’s Murray–Darling Basin (MDB), financial water products are known as ‘entitlements’,
and are similar to traditional financial products, such as shares. The Australian water market includes ‘Low Security’
entitlements, which are similar to ‘sub-prime’ mortgage bonds because they are unlikely to yield an amount equal to their
financial worth. Nearly half the water purchased under the Murray–Darling Basin Plan for environmental purposes is ‘Low
Security’. We suggest that the current portfolio of water held by the Australian Government for environmental purposes
reflects the mortgage market in the lead-up to the global financial crisis. Banks assumed that the future value of the mortgage
market would reflect past trends. Similarly, it is assumed that the future value of water products will reflect past trends,
without considering climate change. Historic records of allocations to ‘Low Security’ entitlements in the MDB suggest that,
in the context of climate change, the Basin Plan water portfolio may fall short of the target annual average yield of 2075 GL
by 511 GL. We recommend adopting finance sector methods including ‘hedging’ ‘Low Security’ entitlements by purchasing
an additional 322–2755 GL of ‘Low Security’, or 160–511 GL of ‘High Security’ entitlements. Securing reliable
environmental water is a global problem. Finance economics present opportunities for increasing the reliability of
environmental flows
Predators in the market: implications of market interaction on optimal resource management
Sustainable Forest Management Preferences of Interest Groups in Three Regions with Different Levels of Industrial Forestry: An Exploratory Attribute-Based Choice Experiment
The challenge of sustainable forest management is to integrate diverse and sometimes conflicting management objectives. In order to achieve this goal, we need a better understanding of the aspects influencing the preferences of diverse groups and how these groups make trade-offs between different attributes of SFM. We compare the SFM preferences of interest groups in regions with different forest use histories based on the reasoning that the condition of the forest reflects the forest use history of the area. The condition of the forest also shapes an individual’s forest values and attitudes. These held values and attitudes are thought to influence SFM preferences. We tested whether the SFM preferences vary amongst the different interest groups within and across regions. We collected data from 252 persons using a choice experiment approach, where participants chose multiple times among different options described by a combination of attributes that are assigned different levels. The novelty of our approach was the use of choice experiments in the assessment of regional preference differences. Given the complexity of interregional comparison and the small sample size, this was an exploratory study based on a purposive rather than random sample. Nevertheless, our results suggest that the aggregation of preferences of all individuals within a region does not reveal all information necessary for forest management planning since opposing viewpoints could cancel each other out and lead to an interpretation that does not reflect possibly polarised views. Although based on a small\ud
sample size, the preferences of interest groups within a region are generally statistically significantly different from each other; however preferences of interest groups across regions are also significantly different. This illustrates the potential importance of assessing heterogeneity by region and by group
Domestic Water Demand During Droughts in Temperate Climates: Synthesising Evidence for an Integrated Framework
In the upcoming years, as the population is growing and ageing, as lifestyle changes create the need for more water and as fewer people live in each household, the UK water sector will have to deal with challenges in the provision of adequate water services. Unless critical action is taken, every area in the UK may face a supply-demand gap by the 2080s. Extreme weather events and variations that alter drought and flood frequency add to these pressures. However, little evidence is available about householders’ response to drought and there are few if any studies incorporating this evidence into models of demand forecasting. The present work lays the groundwork for modelling domestic water demand response under drought conditions in temperate climates. After discussing the current literature on estimating and forecasting domestic water consumption under both ‘normal’ and drought conditions, this paper identifies the limited ability of current domestic demand forecasting techniques to include the many different and evolving factors affecting domestic consumption and it stresses the need for the inclusion of inter and intra household factors as well as water use practices in future demand forecasting models
Dissociation of Motor Task-Induced Cortical Excitability and Pain Perception Changes in Healthy Volunteers
Background: There is evidence that interventions aiming at modulation of the motor cortex activity lead to pain reduction. In order to understand further the role of the motor cortex on pain modulation, we aimed to compare the behavioral (pressure pain threshold) and neurophysiological effects (transcranial magnetic stimulation (TMS) induced cortical excitability) across three different motor tasks. Methodology/Principal Findings Fifteen healthy male subjects were enrolled in this randomized, controlled, blinded, cross-over designed study. Three different tasks were tested including motor learning with and without visual feedback, and simple hand movements. Cortical excitability was assessed using single and paired-pulse TMS measures such as resting motor threshold (RMT), motor-evoked potential (MEP), intracortical facilitation (ICF), short intracortical inhibition (SICI), and cortical silent period (CSP). All tasks showed significant reduction in pain perception represented by an increase in pressure pain threshold compared to the control condition (untrained hand). ANOVA indicated a difference among the three tasks regarding motor cortex excitability change. There was a significant increase in motor cortex excitability (as indexed by MEP increase and CSP shortening) for the simple hand movements. Conclusions/Significance: Although different motor tasks involving motor learning with and without visual feedback and simple hand movements appear to change pain perception similarly, it is likely that the neural mechanisms might not be the same as evidenced by differential effects in motor cortex excitability induced by these tasks. In addition, TMS-indexed motor excitability measures are not likely good markers to index the effects of motor-based tasks on pain perception in healthy subjects as other neural networks besides primary motor cortex might be involved with pain modulation during motor training
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