According to the World Bank · FinlandIn the game: Step 1: The Empty Store
Show that others already do it
1 icon = 1 taxpayer in 1008 more file online
+8percentage points
The Finnish Tax Administration tested a social norm message: “A majority of people in your age group already file online.” This localized peer reference increased adoption of digital tax filing by 8 percentage points over the control group. (p. 93)
Notes 71 and 72 on this page appear to be swapped: the Finnish case’s note (72) points to an Indian smart cities award contest, while the one before it (71) points to Hyytinen, Tuimala and Hammar (2022), “Enhancing the adoption of digital public services: Evidence from a large-scale field experiment.” We could not check the figure in the article itself, so it remains attributed to the report.