@article{Stafford:100714,
      recid = {100714},
      author = {Stafford, Tess},
      title = {Ignoring the Multi-species Aspect of Labor Supply  Decisions in Spatial Bio-economic Fishery Models},
      address = {2011},
      number = {422-2016-26899},
      pages = {48},
      year = {2011},
      abstract = {This paper analyzes the bias in fishermans predicted  participation rates in the target fishery associated with  ignoring the multi-species aspect of labor supply decisions  in
spatial bio-economic fishery models. Recent advancements  have been made to simultaneously model the biology of a  marine species and the strategic behavior of  harvesters
over both time and space in order to more  accurately predict the effect of regulatory
policies on  harvester effort and resource population. These models  assume a nested
choice structure in which the harvester  first faces a dichotomous decision between shifting for the  target species or not on a given day and then chooses a  location to finish conditional on participation. This  structure implicitly groups all non-target species options  together in the first nest forcing participation-specific  coefficients to be the same
for all outside options,  including fishing for an alternative species and staying  home,
two very different choices. Using a complete 15-year  panel of all fishing trips made by
fishermen possessing a  Florida spiny lobster license, including non-lobster trips,  I show
that the simplifying assumption of a dichotomous  choice structure in the first nest is
not innocuous and  that the participation probabilities can change  substantially with
the addition of another species as an  outside alternative.},
      url = {http://ageconsearch.umn.edu/record/100714},
      doi = {https://doi.org/10.22004/ag.econ.100714},
}