条件: . M, c4 U, J! _. u: h/ t7 r: O( E 1. 贷款利率 6%* P/ Q, C* B! `; t0 u
2. 边际税率32%" g q" A, T( B9 j
3. 收益全部为CAPTIAL GAIN, no divident" Q, y# K' I6 ~' p
4. 贷款利息简化为一年后一次付清3 c8 s; v8 v8 X+ N2 p5 G
5. 借款10,000$ W$ S) Q( g- F4 @" y
问: 一年后收益为多少是达到盈亏平衡6 x Y9 ^( B0 n* Q9 y# X
total cost = 600 - 600 x 0.328 Y3 x p' \4 i n( F% D
total gain = E - 0.5 x 0.32 E* _9 ]* ]/ h0 n" W7 T; j5 t
Therefore E = 485 " Q' L6 k: k$ t. H& c+ v( m4.85% gain can balance the interest cost.