Something to Talk About: Social Spillovers in Movie Consumption
利用天气随机性作为工具变量，研究发现首周末观影人数的冲击会在后续五周翻倍，且这种动量主要源于本地共享体验偏好，而非社会学习。
We exploit the randomness of weather and the relationship between weather and moviegoing to quantify social spillovers in movie consumption. Instrumenting for early viewership with plausibly exogenous weather shocks captured in LASSO-chosen instruments, we find that shocks to opening weekend viewership are doubled over the following five weekends. Our estimated momentum arises almost exclusively at the local level, and we find no evidence that it varies with either ex post movie quality or the precision of ex ante information about movie quality, suggesting that the observed momentum is driven in part by a preference for shared experience, and not only by social learning.