International dollars are used to compare incomes and purchasing power across countries and over time. Here, we explain how they’re calculated and why they’re used.<br><br><a href="https://ourworldindata.org/international-dollars" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/95f674ac-5e7c-4474-6493-9a5578eb2a00/w=1350"/></a>

Foreign aid measurement is complicated — what exactly counts as Official Development Assistance, what doesn’t, and how much is actually spent abroad?<br><br><a href="https://ourworldindata.org/what-is-foreign-aid" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/45c115b3-453b-4d01-6ded-31b0e8570700/w=1350"/></a>

In many countries, a significant share of aid is spent domestically on hosting refugees, offering student scholarships, and administrative costs.<br><br><a href="https://ourworldindata.org/foreign-aid-domestic-overseas" target="_blank"><img src="https://ourworldindata.org/cdn-cgi/imagedelivery/qLq-8BTgXU8yG0N6HnOy8g/78a7ce1c-2086-4716-c5dc-30f130bbee00/w=1350"/></a>

Who gives and receives foreign aid? Which forms does it take? What are examples of when it was (un-)successful?<br><br><a href="https://ourworldindata.org/foreign-aid" target="_blank"><img src="https://ourworldindata.org/images/published/foreign-aid-featured-image.png"/></a>