Stanford report: Shortfall for California's pension systems as much as a half a trillion dollars

Denis C. Theriault, Mercury News According to a new report by a group of Stanford University graduate students, the shortfall facing California's public pension systems could reach more than half a trillion dollars over the next decade and a half. A summary of the report, released Monday, also said the current recession has cost the three systems — for the state's public employees, schoolteachers and University of California workers — $109.7 billion in lost investment value. The report says the systems' basic growth assumptions are too rosy…