It's not unusual for a device to be sold under a couple of different names for the purposes of carrier branding, or to distinguish a global GSM model from its US bound LTE sibling.
Mr Krugman's model does not distinguish between domestic and foreign creditors a significant omission, given that East Asia's problems grew because foreign banks kept lending even after signs of crisis became apparent (see charts).
This would explain why the Romney campaign has chosen to attempt to distinguish the report from their plan (although there little to distinguish the Romney-Ryan Medicare plan from the model studied by Kaiser) rather than attack the findings of the Kaiser Family Foundation report.