copyrights continues to be scarce, primarily due to a lack of exogenous variation in modern copyright laws. To address this issue … and durability. Notably, there is no evidence of comparable benefits for extensions in copyright lengths beyond the life …

Proponents of stronger copyright terms have argued that stronger copyright terms encourage creativity by increasing the … not available to the public. Moreover at current copyright lengths of 70 years after the author's death, further … extensions may not have any effects on the profitability of authorship. To investigate effects of copyright at lower pre …