Based on the video of Why we need global institutions. Link: https://www.ted.com/talks/gabriel_duque_why_we_need_global_institutions/tr anscript?language=en The speaker argued that "Recently, some countries, even big and prominent ones, have decided to concentrate only on their national interests and on the short run. Yet the problems and challenges we face are global, and if not tackled now, will be unmanageable in the long run." Why do countries take an inward looking (serving only the national interest) approach and how would that limit the progress of the countries? [10 marks]