We consider anchoring on visual cues in a contingent-behavior study of the effects of offshore wind power projects on beach use on the East Coast of the United States. In an internet-based survey of beachgoers, we show respondents visual simulations of wind power projects at three offshore distances and vary the order in which respondents see the visuals -- so some see near visuals first and some see far visuals first. Respondents are asked how their trip-taking behavior may be affected by the projects. In parametric and non-parametric analyses, we find strong anchoring in the far-to-near ordering of the visuals and weak anchoring in the near-to-far ordering. We also find greater dependence on the first-shown visual versus the most-recent-shown visual. Finally, we find some effects of having viewed wind turbines in real life before entering the survey. The size of the anchoring effect has important policy implications insofar as it affects the predicted change in visitation and hence measured impact of offshore wind power projects. It also has implications for the interpretation of results from other stated preference surveys using visuals and on how surveys are designed.

在对美国东海岸的海上风力发电项目对海滩使用的影响进行的一项偶然行为研究中，我们考虑锚定视觉线索。在基于互联网的游民调查中，我们向受访者展示了三个海上距离的风力发电项目的视觉模拟，并改变了受访者观看视觉效果的顺序-因此有些人首先看到近距离视觉，有些人首先看到远距离视觉。受访者被问到他们的旅行行为如何受到项目的影响。在参数和非参数分析中，我们发现视觉效果的从近到远的顺序具有较强的锚定性，而从远到远的排序则具有较弱的锚定性。我们还发现，与最新显示的视觉效果相比，对首次显示的视觉效果的依赖性更高。最后，我们发现在进入调查之前在现实生活中查看过风力涡轮机会产生一些影响。锚固效应的规模对政策的影响具有重要的政策意义，因为它影响到预计的访问量变化，从而影响海上风电项目的可衡量的影响。它也对使用视觉对其他既定偏好调查的结果的解释以及调查的设计方式产生影响。