The Private and Social Costs of #Patent #Trolls by James Bessen, Michael Meurer, Jennifer Ford : : SSRN
►http://papers.ssrn.com/sol3/papers.cfm?abstract_id=1930272
étude scientifique : en vingt ans, mille milliards de dollars ont été perdus à cause des trolls à #brevets … et ça ne va pas aux inventeurs
“patent trolls” who opportunistically litigate over software patents with unpredictable boundaries? Using stock market event studies around patent lawsuit filings, we find that NPE lawsuits are associated with half a trillion dollars of lost wealth to defendants from 1990 through 2010, mostly from technology companies. Moreover, very little of this loss represents a transfer to small inventors. Instead, it implies reduced innovation incentives.