abstract = "Since the global recession of 2008-2009, it has been
much more widely understood that reliable economic
forecasting is needed in business decision-making. Of
special interest are the forecasting methods based on
explanatory variables (economic drivers), the most
popular of which is the Auto-Regressive Integrated
Moving-Average with eXplanatory variables (ARIMAX)
model. A limitation of this approach, however, is the
assumption of linear relationships between the
explanatory variables and the target variable. Genetic
programming is a potential solution for representing
nonlinearity and a hybrid scheme of integrating static
and dynamic nonlinear transforms into the ARIMAX models
is proposed in the chapter. From an implementation
point of the view the proposed solution has several
advantages, such as: optimal synergy between two
well-known approaches like GP and ARIMAX, avoiding the
need for developing a solid theoretical alternative for
nonlinear time series modelling, using available
forecasting software, and low efforts to train the
final user. The proposed approach is illustrated with
two examples from real business applications in the
area of raw materials forecasting.",