School of Public and International Affairs, Princeton University, Princeton, NJ 08544.
Department of Politics, Princeton University, Princeton, NJ 08544.
Proc Natl Acad Sci U S A. 2023 Dec 26;120(52):e2310050120. doi: 10.1073/pnas.2310050120. Epub 2023 Dec 20.
Myopia involves giving disproportionate weight to outcomes that occur close to the present. Myopia in people's evaluations of political outcomes and proposals threatens effective policymaking. It can lead to inefficient spending just before elections, cause inaction on important future policy challenges, and create incentives for government interventions aimed at boosting short-term performance at the expense of long-term welfare. But, are people generally myopic? Existing evidence comes mostly from studies that disregard either the future or collective outcomes. Political science characterizes people as myopic based on how they retrospectively evaluate collective outcomes, such as the state of the economy. Behavioral economics and psychology find that people make myopic choices involving future individual outcomes, such as money or personal health. To characterize myopia more generally, we offer two innovations: First, we adapt measurement approaches from behavioral economics and psychology to precisely gauge myopia over politically relevant collective outcomes. Second, we estimate myopia using the same approach for collective political outcomes in both past and future. We conduct two surveys on three different samples (including a large probability-based sample) asking respondents to evaluate national conditions randomly described as past or future while holding constant the domain, information about conditions, and the elicitation method. Results show that prospective evaluations are significantly less myopic than retrospective evaluations. People are often not myopic at all when looking to the future. This surprising pattern calls for more research to probe its robustness and spell out how low prospective myopia might lead to forward-looking policy.
近视涉及对当前附近发生的结果给予不成比例的重视。人们在评估政治结果和提案时的近视会威胁到有效的决策制定。它可能导致选举前低效支出,对重要的未来政策挑战无所作为,并为旨在提高短期绩效而牺牲长期福利的政府干预创造激励。但是,人们普遍近视吗?现有证据主要来自于那些忽略未来或集体结果的研究。政治学根据人们如何回顾性地评估集体结果(如经济状况)来将人们描述为近视。行为经济学和心理学发现,人们会做出涉及未来个人结果的近视选择,例如金钱或个人健康。为了更全面地描述近视,我们提出了两个创新:首先,我们从行为经济学和心理学中采用了测量方法,以精确衡量与政治相关的集体结果的近视程度。其次,我们使用相同的方法来估计过去和未来的集体政治结果的近视程度。我们在三个不同的样本(包括一个大型基于概率的样本)上进行了两项调查,要求受访者在保持领域、条件信息和启发式方法不变的情况下,对随机描述为过去或未来的国家状况进行评估。结果表明,前瞻性评估明显比回顾性评估更不易近视。当人们展望未来时,往往并不近视。这种令人惊讶的模式需要更多的研究来探究其稳健性,并阐明低前瞻性近视如何可能导致前瞻性政策。