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Filtering by: Creator Mafimisebi, T. E. Remove constraint Creator: Mafimisebi, T. E. Creator Arnason, Ragnar Remove constraint Creator: Arnason, Ragnar Subject Sustainable fisheries -- Congresses Remove constraint Subject: Sustainable fisheries -- Congresses

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  • Economically Sensible Caps on ITQ-Holdings

    Creator:
    Arnason, Ragnar
    Abstract:
    Many ITQ fisheries are subject to an upper limit or cap on ITQ-holdings by individual companies. The economic rationale for these caps seems to be to reduce the opportunities for monopolistic behaviour by the companies. A possible social cost of the caps is that limiting company size in fisheries, especially...
    Resource Type:
    Presentation
    Full Text:
    firm’s maximization problem:   0, ( , , ( ); ) ( ) r t q Max q x Q i s Q q e dt

  • ITQ Prices: What do they Reveal?

    Creator:
    Arnason, Ragnar
    Abstract:
    ITQ systems generate ITQ prices. For any given ITQ-managed species there are typically two prices. One is for the annual (or seasonal) quota, the other is for the longer lasting ITQ-share. In well-functioning ITQ markets, these prices reveal important information about the fishery. In the single species framework, prices of...
    Resource Type:
    Presentation
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    ) prices: In equilibrium qp Q Rents p r r     Quota share prices: ( ) ( )rt rth t t p t Q e d

  • Community Fishing Rights: Some Basic Principles

    Creator:
    Arnason, Ragnar
    Abstract:
    It is now widely recognized that property rights based fisheries management regimes are well suited for generating efficiency in fisheries. Apart from access licences, which are very low quality property rights, individual quotas (IQs) and individual transferable quotas (ITQs) are the most widely applicable and, indeed, the most commonly applied...
    Resource Type:
    Research Paper
    Full Text:
    q C q i y i w z e dt τ α β γ −⋅ ⋅ − + ⋅ ⋅ − + ⋅ − ⋅ ⋅ ≥∑ ∑∫ T α β γ≥ + + . The solution to

  • Fisheries Rents: Theoretical Basis and an Example

    Creator:
    Arnason, Ragnar
    Abstract:
    The concept of natural resource rents is much used in the natural resource and fisheries economics literature. It is therefore somewhat surprising that in this same literature it is difficult to find a clear definition of either natural resource rents or fisheries rents. Possibly, as a result, the concept is...
    Resource Type:
    Research Paper
    Full Text:
    { } = ( , ) r t q Maximize V q x e dt ∞ − ⋅Π ⋅∫ , Subject to: x& = G(x)-q x(0) = x0 x, q ≥ 0

  • Global Warming and Fisheries: Thoughts on a Sensible Response

    Creator:
    Arnason, Ragnar
    Abstract:
    Atmospheric measurements show that so-called greenhouse gases have been accumulating in the Earth’s atmosphere for well over a century. There are strong indications that human activity plays a significant role in this process. One consequence of the accumulation of greenhouse gases is thought to be an increase in global temperatures...
    Resource Type:
    Research Paper
    Full Text:
    ({ }) ( ( ( ), ( )) ( ( ), ( )), ( )) r tV a W B a t z t C a t z t z t e dt ∞ − ⋅= − ⋅∫ , IIFET 2006 Portsmouth Proceedings 4