I'd like to solve and plot recurrences with more than one variable, for example the two-time recurrence of way required on Samuelson-Hicks model. (Section 4 from http://www.mathem.pub.ro/proc/bsgp-22/K22-gh-A84.pdf ).
Is it possible with Mathematica?
the documentation says that coupled recurrence equations can be solved. I assume that you have tried that on your equations? If so, where did you run into problems?