JOY Bank holds assets and liabilities whose average durations and dollar amounts are as shown in this table:
Asset and Liability Items Average Duration(yrs) $ Amount
Investment Grade Bonds (Asset) 12.00 $65.00
Commercial Loans (Asset) 4.00 $400.00
Consumer Loans (Asset) 8.00 $250.00
Deposits (Liability) 1.10 $600.00
Nondeposit Borrowings (L) 0.25 $50.00
What is the weighted average duration of bank's asset portfolio and liability portfolio? What is the leverage-adjusted duration gap?