My recommendation is: work on topics that are also interesting for business departments (applied micro, finance), most business APs are leightweights, should be a lot easier to get a position as a business admin prof.
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this sounds like a good recommendation. i think it is also a lot easier to become a business prof at a top german university (such as mannheim) than becoming an econ prof. if you have one or two decent publicatione (say in jfe or journal of marketing) you immediately get a lifetime position...