@article{Thomas:143801,
      recid = {143801},
      author = {Thomas, Victoria and Thomas, Michael H.},
      title = {Calibrating Dissimilar Payment Vehicles in Contingent  Valuation Studies: An Example of Reducing Hydrilla in Two  North Florida Spring-Fed River Systems},
      address = {2013-02-05},
      number = {1373-2016-109273},
      month = {Feb},
      year = {2013},
      abstract = {Choice of payment vehicle (PV) is important to  contingent-valuation practitioners.  They are often left  using scenarios that may elicit bias responses; for example  hypothetical gate fees in open access areas.  Utility bills  may avoid bias, but introduce a scaling problem.  A survey  of north-Florida spring-based recreation calibrates these  two dissimilar PVs.},
      url = {http://ageconsearch.umn.edu/record/143801},
      doi = {https://doi.org/10.22004/ag.econ.143801},
}