So et al. (2006) present a very concise AHP procedure in their 2006 paper addressing
the service quality of 3PL service providers (So et al.). They studied five service quality
dimensions (dubbed tangibles, reliability, responsiveness, assurance and empathy), and
obtained 89 responses to the pairwise questionnaires they sent out to logistics
managers. It would be interesting to know whether having that many experts do the
comparisons actually add much value. The value of AHP and the pairwise comparison
method is that a very few number of experts can make the comparisons (sometimes
as few as one or two, although we would not recommend that few), and it
would be interesting to know at which point the aggregate weights start to stabilize.