“Congestion on the Information Superhighway § Figure 1: Time Series of Number of Working Paper Releases”, Lester Lusher, Wenni Yang, Scott E. Carrell2023-09 ()⁠:

Figure 1: Time series of number of working paper releases.

(a) Number of annual working papers from 4 leading working paper sources(b) Number of weekly NBER working paper releases. Notes: Data for (a) come from Citation in Economics. For (b), for each month since January 2004, we first calculate the average number of weekly NBER WPs released. The figure then plots a simple 3-month moving average of this measure.