suppose that the distribution of the market next year only depends on this year. consider only two rival companies, R and S who manufacture a cerain product. each year, company R keeps 1/4 of its customers while 3/4 switch to S. each year, S keeps 2/3 of its customers while 1/3 switch to R. when manufacture of the product first starts, R has 3/5 of the market while S has 2/5 of the market. in the long run, the steady-state distribution of R of the market is ? 我有兩個問題 　 　(1)最後一句的英文是求算 R市場在長期之下穩定均衡的分配沒錯吧? 如果(1)是對的話，我的想法如下 R S R 1/4 3/4 S 1/3 2/3 然後明年度 R的客戶市場是 3/5*1/4 + 2/5*1/3 第三年度 R的客戶市場 [ 3/5*1/4 + 2/5*1/3 ]*1/4 + (3/5*3/4 + 2/5*2/3)1/3 依此類推，本來以為會有公比出現之類的，可是我發現好像沒有 所以我就卡住無法解下去，不知道是哪裡出問題，因此請教板上的人 --

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