Economics is frequently accused of marginalizing much of reality. A Venn diagram approach to overlapping domains could be an excellent research strategy. Lets look at possible overlapping circles (can be seen as sets).
Chambers such as congress in te US.
What seems clear is how limited that any one, or just a few, is as a set of questions. The questions of our time seem to require all of them because often the next step in exploring a question would be into another domain. And of course many more could be added.