Reverse Brand Acquisition

Hi, I am trying to understand the reverse branding acquisition of Uber by Grab within the three sub domains: 1) what factors drive Grab to enter into such acquisition 2) what are the benefits (& challenges, problems) of managing /forming such acquisitions 3) what are the new marketing strategies that firm develop due to such acquisitions, both from Uber and Grab perspective The factors to be explored should be broad; that is, they should not be just firm-specific, but could also be - a.) governmental, b.) socio-political environmental, c.) individuals like CEOs, CMOs, etc., d.) product, brand, and/or technological