An article in the Wall Street Journal noted that "companies eager to automate more of their back-office tasks are fueling a booming market for software 'robots.'" According to the article, "The technology uses software to mimic the way workers process transactions, creating applications to power automated systems that can perform tasks faster and better than humans." Source: Angus Loten, "Demand Surges for Software 'Robots' That Automate Back-Office Tasks," Wall Street Journal, April 24, 2019. Assuming that they are widely adopted by firms, how are these software robots likely to affect the costs of the firms that buy them