System dynamics — firm growth feedback
Customers + revenue + R&D investment feedback loop.
Make it your own.
title "Firm growth feedback"
stock Customers at (2,2) initial 100
stock Revenue at (6,2) initial 1000
stock RnD at (6,4) initial 100
flow acquisition from Customers to Customers rate "marketing"
flow rev_gen from Customers to Revenue rate "Customers * ARPU"
flow rnd_invest from Revenue to RnD rate "0.1 * Revenue"
aux marketing at (0,4) value 50
aux arpu at (4,4) value 30
info marketing -> acquisition
info Customers -> rev_gen
info arpu -> rev_gen
info Revenue -> rnd_invest