Just a heads up that the economics syllabus is changing from September 2019, so by the time you’re in fifth the syllabus will be different. I can’t imagine it changing majorly but just letting you know in case you were going to start learning it in TY
Just looked it up and the new curriculum seems to be composed of : 80% for the final exam and 20% for a reserach study that is to be done in 6th year. I don’t know if you’d need a teacher for this, but im just letting you know. Look up “new leaving cert economics syllabus” for the information. Good luck :)
Its a really good subject but honestly would not recommend doing it by yourself. A lot of the concepts whilst they might just simple can actually be quite complicated and do require some explaining from a teacher or someone who knows a lot about it.
it's complicated but there's a lot of online resources that can help you like jacob clifford etc, it would be hard but i think it's one of the easier subjects to teach yourself just don't learn fully from the book !