We were told we need to be constantly up to date with the news but honestly... i always read the news and had examples for every topic but in the exam i only ended up using a few for the longer essay questions and the rest of the questions were answered using the case study provided.
Its really helpful to know about the ER history, inflation, IR and some facts about developing, emerging econs etc. but other than that dont waste too much time researching/learning examples. Its more about exam technique.
I would highly suggest looking at the tutor2u econ resources as theyre incredibly useful.