Large language models (LLMs) enable researchers to analyze text at unprecedented scale and minimal cost. Researchers can now revisit old questions and tackle novel ones with rich data. We provide an ...
A vast amount of time series datasets are organized into structures with different levels or hierarchies of aggregation. Examples include cross-sectional aggregations such as categories, brands, or ...
Abstract: This paper develops econometric models to estimate the impact of social media on e-commerce sales, pre- and post-COVID. We use data from 2009 to 2021 on 21 major types of social media to ...
We discuss the considerable literature that has developed in recent years providing rigorous evidence on how industrial policies work. This literature is a significant improvement over the earlier ...
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