This research paper from Rufus Pollock in 2009 suggests that the optimal timeframe for copyright is 15 years. I’ve been referencing this for, well, 16 years now, a year longer than the optimum copyright range. If I recall correctly I first saw this referenced by Mike Masnick of techdirt.
https://rufuspollock.com/papers/optimal_copyright_term.pdf
This research paper from Rufus Pollock in 2009 suggests that the optimal timeframe for copyright is 15 years. I’ve been referencing this for, well, 16 years now, a year longer than the optimum copyright range. If I recall correctly I first saw this referenced by Mike Masnick of techdirt.