236 The Marketing Book
research and international marketing. For a
detailed example of an application of LISREL,
see Moutinho and Meidan (1989). Table 9.13
summarizes the applications of the two causal
models in marketing.
Hybrid models
Under this category there are three different
types of methods used in solving marketing
problems: dynamic programming; heuristic
programming; and stock control models.
Dynamic programming
As stated by Budnick et al. (1977), dynamic
programming is a recursive approach to opti-
mization problems which works on a step-
by-step basis utilizing information from the
preceding steps. The model has been used to
aid decision making in areas such as distribu-
tion (i.e. the minimization of transportation
costs), the distribution of salespeople to various
territories (in such a way that maximum profits
will be obtained), and determining the best
combination of advertising media and fre-
quency under a budgetary constraint.
Table 9.13 Applications of causal models in marketing (the techniques,
advantages, limitations and when recommended to use)
Model Content Marketing
applications
Advantages Limitations
Path analysis Provides the means
for studying the
direct and indirect
effects of variables,
by offering
quantitative
information on the
basis of qualitative
data on causal
relations
Tourism marketing
(McDonaghet al.,
1992), other
applications
(Wasserman, 1989)
Displays graphically
the pattern of
causal relationships
Assumes
relationships among
variables are linear
LISREL (linear
structural
relations)
A structural
equation modelling,
that enables one to
decompose
relations among
variables and test
causal models that
involve both
observable and
unobservable
variables
Consumer
behaviour, personal
selling, marketing
strategy,
international
marketing
(Moutinho and
Meidan, 1989)
Provides an integral
approach to data
analysis andtheory
construction. The
method easily
handles errors in
measurement.
Ability to bring
together
psychometric and
econometric
analyses
Requires an a priori
theory for
structure analysis