I use a set of essential questions to connect the various curriculum units in my US History course. Economics is one of the five main themes. You can read more about how I use these essential questions in my class here, and you can find a free Powerpoint to download on TeachersPayTeachers here.
Since I go back to these questions repeatedly, it helps to have them posted somewhere visible in my classroom. I made this poster to both a) take up space on my bulletin board and b) help my students remember the essential questions related to our theme of Economics.
The file is a print-ready PDF intended for a regular 8.5" x 11" piece of paper. Download it, print it, and you're ready to go! Check my other listings for similar posters about Equality, Civics, Conflict, and Movement.