This paper develops a discrete-event hybrid simulation/analytic model
for the study of production networks. The system is represented by a s
et of onlinear difference equations for the slow-varying dynamics, whi
ch are tractable by simulation, and a set of piecewise linear algebrai
c equations for the fast dynamics, which are solved analytically. The
resulting algorithm saves a great amount of computation and is much fa
ster than conventional piece-by-piece simulators.