The U.S. Plant Variety Protection Act (PVPA) of 1970 was meant to strengthen intellectual property protection for plant breeders. A model of investment under partial excludability is developed, leading to the hypotheses that any increase in excludability or appropriability of the returns to...

Since 2000, the California Department of Food and Agriculture (CDFA), has spent approximately $40 million per year to contain and control the Glassy Winged Sharpshooter (GWSS), which spreads Pierce’s Disease (PD). Compliance with the program has cost the nursery industry approximately $7...

Selected Paper presented at the 57th annual conference of the Australian Agricultural and Resource Economics Society, Sydney, February 5-8, 2013.

Over the past ve decades in the United States both total medical expenditures and the proportion of medical expenditures nanced with public funds have increased sig- nicantly. A substantial increase in the prevalence of obesity has contributed to this growth. In this study we measure the...