Research Assistant
Now many students interested in pursuing a Ph.D in economics do a 1 or 2 year RA or pre-doctoral program. This has the unfortunate consequence of “lengthening” the Ph.D but it can make your graduate school application more competitive or, more importantly, expose you to academic economics research and help you gain useful experience and skills.
Here is useful guide discussing the pros and cons of a research assistant position and how to prepare and search for one.