<prompt> Translate the following text to EnglishWanahisabati wawili wanaweza kupenda kusoma tena makala yao ya awali ya WSJ, ambayo inasema kwamba mapato baada ya kodi ni makadirio ya busara ya mtiririko wa fedha kutoka kwa hisa.  <response>: The two authors might want to reread their original WSJ article, which Assume that after-tax earnings are a reasonable estimate of the cash flow from a stock. 