• Individual quotas and revenue risk of fishing portfolio in the trawl fishery 

      Alizadeh, Tannaz; Syed, Shaheen; Eide, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-03)
      The Norwegian bottom-trawl fleet is managed through individual vessel quotas and is generally engaged in codfish fisheries, where several species contribute to the revenue of the fishery. The revenue from the fishing exhibits substantial intra-annual variation and carries a significant degree of risk due to the presence of intrinsic volatilities in the marine environment, such as seasonal fluctuations ...
    • Intra- and inter-temporal effort allocation and profit-maximizing strategy of trawl fishery 

      Alizadeh, Tannaz; Abe, Keita (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-04)
      Bottom trawlers are engaged in multi-species fisheries and fish for profit. In quota-regulated fisheries, intra- and inter-temporal substitutions of fishing effort is regarded as a key mechanisms that influences the profitability of the fishing portfolio. The feeding and spawning migration patterns of the available fish species in the fishing portfolio alter the bio-economic conditions of the different ...