id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
bae-3223	Srinivasan, Chittur	Modelling Economic Returns to Plant Variety Protection in the UK	2012	24	.pdf	application/pdf	10925	464	49	A duration model of plant variety protection certificates is used to infer the private appropriability of returns from agricultural crop variety innovations in the UK over the period 1965-2000. The val- ue distribution of plant variety protection certificates is highly skewed with a large proportion of innovations providing virtually no returns to innovators.	cache/bae-3223.pdf	txt/bae-3223.txt