Structure

Widgets are going to be stratified by province and widget type to produce elemental indices at the province-by-widget-type level. These elemental indices should be calculated with a Jevons index. The provincial, regional, and Canada-level indices are going to be arithmetic indices that aggregate the elemental indices using value-share weights. Weights for the arithmetic indices are going to be revised in 2019, with January 2019 as the link month. The aggregation structure is summarized in the graph below.