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Teaching Economics

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Data Starter: Global adoption of communication technologies per 100 people

Elizabeth Veal

30th September 2025

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How has communication tech usage grown over time?

Using the chart from OurWorldinData, answer these questions:

  1. What is the percentage change in mobile phone subscriptions per 100 people between 2005 and 2024? Write your answer to 2 decimal places.
  2. Compare the relative importance of usage of landline phone subscriptions to internet users 2005-2023.

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Elizabeth Veal

Liz has taught Economics for over 25 years, including several years as Head of Economics at leading schools.

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