In the early stages, exogenous technological change was predominant in integrated assessment modeling. Specifically, in top-down models, the constant elasticity substitution (CES) function has ...

Henrik Spliid, A Fast Estimation Method for the Vector Autoregressive Moving Average Model With Exogenous Variables, Journal of the American Statistical Association, Vol. 78, No. 384 (Dec., 1983), pp.

The classical model is said to rely on an exogenous process—in which the antigens are introduced into the APC from outside the cell.