Law Commons^™

Judging Similarity, Shyamkrishna Balganesh, Irina D. Manta, Tess Wilkinson-Ryan

All Faculty Scholarship

Copyright law’s requirement of substantial similarity requires a court to satisfy itself that a defendant’s copying, even when shown to exist as a factual matter, is quantitatively and qualitatively enough to render it actionable as infringement. By the time a jury reaches the question of substantial similarity, however, the court has usually heard and analyzed a good deal of evidence: about the plaintiff, the defendant, the creativity involved, the process through which the work was created, the reasons for which the work was produced, the defendant’s own creative efforts and behavior, and on occasion the market effects of the defendant’s …