• Corpus ID: 239016081

Dropping diversity of products of large US firms: Models and measures

  title={Dropping diversity of products of large US firms: Models and measures},
  author={Ananthan Nambiar and Tobias Rubel and James McCaull and Jon deVries and Mark A. Bedau},
It is widely assumed that in our lifetimes the products available in the global economy have become more diverse. This assumption is difficult to investigate directly, however, because it is difficult to collect the necessary data about every product in an economy each year. We solve this problem by mining publicly available textual descriptions of the products of every large US firms each year from 1997 to 2017. Although many aspects of economic productivity have been steadily rising during… 


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