2.5 on 23 August 1996, the spot and forward prices for Copper (US$s per oz) (US cents per lb) Spot 387.60 1 month 388.20 2 month 389.60 3 month 4 month 392.50 5 month 6 month 394.90 7 month 8 month 397.30 91.15 90.65 90.50 90.15 89.65 89.30 88.65 88.35 88.05 Assuming that gold has no convenience yield or storage costs, i\yese prices the riskless interest rate for the terms to maturity {or $xces Use these interest rates to calculate the convenience yield ot comer. comet also has no storage costs.)