The best place to look is Business Source Premier. Go to the library website, then Databases tab -> Databases by Subject -> Business -> Business Source Premier.
In Business Source Premier, you will see a check box labelled "Scholarly (Peer Reviewed) Journals." Check this box before you do your search. A search for economics with this box checked will find nearly 400,000 articles, so you will probably want to narrow your topic before you begin. Choose a particular aspect of economics that interests you.
