英文文献：Surveying the Feasibility of a Voluntary Beef Checkoff-调查自愿签发牛肉支票的可行性
英文文献作者：Winn, Chris,Norwood, F. Bailey,Chung, Chanjin,Ward, Clement E.
英文文献摘要：
With the possible elimination of the mandatory beef checkoff, some state are considering a voluntary beef checkoff. This study conducts a choice experiment to estimate the feasibility of a state and nationwide voluntary checkoff. Results indicate that a lower fee and a greater focus on advertising may produce a feasible voluntary checkoff.

随着强制牛肉检查可能被取消，一些州正在考虑实行自愿的牛肉检查。本研究进行选择实验，以评估州和全国自愿检查的可行性。结果表明，更低的费用和更多的关注广告可能产生一个可行的自愿检查。