Should Sony’s R&D efforts be focused on a limited number of “core” products or should it aim to be an innovation leader in each single business sub segment that it has? Do you think Sony should...

Should Sony’s R&D efforts be focused on a limited number of “core” products or should it aim to be an innovation leader in each single business sub segment that it has? Do you think Sony should subsidize the unsuccessful R&D efforts that produce products which do not turn profits?