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An information robot stands ready to assist customers in front of automated teller machines (ATM) at an Emirates NBD PJSC bank branch in the Dubai Mall, operated by Emaar Malls Pjsc, in Dubai, United Arab Emirates, on Tuesday, Sept. 12, 2017. Dubai residential property prices and rents are set to fall further as losses of high-paying jobs and dwindling household incomes boost vacancies across the city, according to Phidar Advisory. Photographer: Tasneem Alsultan/Bloomberg via Getty Images

An information robot stands ready to assist customers in front of automated teller machines (ATM) at an Emirates NBD PJSC bank branch in the Dubai Mall, operated by Emaar Malls Pjsc, in Dubai, United Arab Emirates, on Tuesday, Sept. 12, 2017. Dubai residential property prices and rents are set to fall further as losses of high-paying jobs and dwindling household incomes boost vacancies across the city, according to Phidar Advisory. Photographer: Tasneem Alsultan/Bloomberg via Getty Images