越简单越好吗？能源标签对房价与能效投资的阈值效应
The Simpler the Better? Threshold Effects of Energy Labels on Property Prices and Energy Efficiency Investments
American Economic Journal: Applied Economics · 2024 · [{"name": "Rodolfo Sejas‐Portillo", "affiliation": ["London School of Economics and Political Science"]}, {"name": "Mirko Moro", "affiliation": ["University of Stirling"]}, {"name": "Till Stowasser", "affiliation": ["University of Stirling"]}]
中文摘要
利用英国超过700万笔住宅房产销售数据，我们发现简化的能源效率（EE）信息带来了重要的市场效应。英国立法要求使用一种能源标签，该标签显示能效评分（1–100分），并将其映射到任意设定的彩色编码评级等级（A–G）。采用断点回归设计，我们记录了在评级等级阈值处存在显著的价格不连续，表明市场中存在启发式思维。这些价格不连续影响了市场行为：当房产刚好低于某一阈值时，卖方更有可能进行能效投资。我们讨论了相关政策考量及未来研究方向。(JEL D91, K32, Q48, R31)
Abstract
Using British data on over 7 million residential property sales, we find that the simplified energy efficiency (EE) information leads to important market effects. UK legislation requires the use of an energy label that shows an EE rating score (1–100) mapped into arbitrary color-coded rating bands (A–G). Applying a regression discontinuity design, we document significant price discontinuities at rating band thresholds, indicating heuristic thinking in the market. These price discontinuities influence market behavior as sellers are more likely to make EE investments if their property is just below a threshold. We discuss policy considerations and avenues for future research. (JEL D91, K32, Q48, R31)