context: And the economics of McDonald's is partly based on "frying media" that require replacement every few months thanks to the remarkable stability, even after multiple reheatings, of oils containing trans fats. If New York can claim one accomplishment, it will be to have sped up Mickey D's transition.
1.What does "the economics" mean here?
2.What does "frying media mean?
3.Does "every few months " mean "every month"?
4.Does "New York" refer to New York's government?
1 The specific economics of McDonald's and how they generate profits
2 The oil used to cook
3 No; it means a few months, say two or three
4 Possibly- it's unclear from the context.