Long-run dynamics of the US patent classification system
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'The dataset contains several files used in the paper 'Long-run dynamics of the US patent classification system' by François Lafond and Daniel Kim. The files contain data on the evolution of the number of classes in the United States Patent Classification System between 1836 and 2015, data on the original (at grant date) and current (2015) primary classification at the class level of patents granted between 1976 and 2015, and related supporting files' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["classification systems","patents","reclassification"]} <|eot_id|>
 Here is the Description of a dataset. Description:'The dataset contains several files used in the paper 'Long-run dynamics of the US patent classification system' by François Lafond and Daniel Kim. The files contain data on the evolution of the number of classes in the United States Patent Classification System between 1836 and 2015, data on the original (at grant date) and current (2015) primary classification at the class level of patents granted between 1976 and 2015, and related supporting files' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
The dataset contains several files used in the paper 'Long-run dynamics of the US patent classification system' by François Lafond and Daniel Kim. The files contain data on the evolution of the number of classes in the United States Patent Classification System between 1836 and 2015, data on the original (at grant date) and current (2015) primary classification at the class level of patents granted between 1976 and 2015, and related supporting files
classification systems; patents; reclassification