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The analytic hierarchy process (AHP) (Saaty 2008) using pairwise comparison was used in determining the corresponding weights of the five WSP stages (Table 2). The weights were calculated using an eigenvector technique and were normalized using a consistency ratio. AHP is considered over other weighting methods due to the involvement of local expert opinion and higher level of transparency of indicators that are inherent features of index development (OECD 2008). The inputs from the local WSP experts made the established weights unique to the Philippines. These inputs are opinions on which WSP stage is considered more important than others. Other countries may adopt the process of establishing the weights from the AHP method using the opinions of their local experts.

Table 2

Determination of weights per WSP stage using pairwise comparison of AHP

WSP stageEigenvector
Computed weightsSuggested weights by local WSP experts
12345TotalRow average
0.0769 0.0833 0.0541 0.0870 0.0769 0.3782 0.0756 0.08 0.10 
0.3846 0.4167 0.5405 0.4348 0.3846 2.1612 0.4322 0.43 0.40 
0.3846 0.2083 0.2703 0.3478 0.3077 1.5187 0.3037 0.30 0.30 
0.0769 0.2083 0.0676 0.0870 0.1538 0.5936 0.1187 0.12 0.15 
0.0769 0.0833 0.0676 0.0435 0.0769 0.3482 0.0696 0.07 0.05 
WSP stageEigenvector
Computed weightsSuggested weights by local WSP experts
12345TotalRow average
0.0769 0.0833 0.0541 0.0870 0.0769 0.3782 0.0756 0.08 0.10 
0.3846 0.4167 0.5405 0.4348 0.3846 2.1612 0.4322 0.43 0.40 
0.3846 0.2083 0.2703 0.3478 0.3077 1.5187 0.3037 0.30 0.30 
0.0769 0.2083 0.0676 0.0870 0.1538 0.5936 0.1187 0.12 0.15 
0.0769 0.0833 0.0676 0.0435 0.0769 0.3482 0.0696 0.07 0.05 

CI = 0.0937; CR = 0.084.

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