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img_publication Working Paper

DiGiX: The Digitization Index

Document Number 17/03

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The Digitization Index (DiGiX) assesses the factors, agents’ behavior and institutions that enable a country to fully leverage Information and Communication Technologies (ICTs) for increased competitiveness and well-being. It is a composite index that summarizes relevant indicators on 100 countries’ digital performance.


One comment

  1. I do not understand the calculation of weight \beta_j .. Please correct me if I am wrong – j (= 1,…,6) denotes the 6 dimensions. So, if I pick the first dimension (j = 1) which is infrastructure, it has 4 different attributes. You choose the principal component out of these 4 attributes and the explained variance of this principal component is reported as the explained variance of infrastructure (\lambda_1) in Table 2 (right ?).. now, coming to the calculation of \beta_1 (1 denoting infrastructure), can you please explain what is the sum running over? if it is running over j, it does not make any sense since the RHS is dependent on k alone, in that matter .. Kindly explain the calculations of weights. Also, I do not understand how the weights of each of the 4 individual attributes under infrastructure were calculated in Table 3.


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