Phoebe's AGI for the current year is $120,000. Included in this AGI IS $100,000 salary and $20,000 of interest income. In earning the investment income, Phoebe paid investment interest expense of $30,000. She also incurred the following expenditures subject to the 2% of AGI limitation. Investment expenses: Subscriptions to investment journals $500 Investment counseling 1,500 Safe-deposit box rental for stock certificates 100 Nonineivestment expenses: Unreimbursed employee business expenses $1,800 Tax return preparation fees (non-business-related) 500 What is Phoebe's investment interest expense deduction for the year?