Growth of global trade

What you should know about this indicator
- The volume of world trade measures the goods that countries export and import across borders. To compare trade over time, researchers calculate an index that averages exports and imports and sets 1913 as the baseline year (equal to 100). This allows us to track how global trade has changed over time.
- One of the most important developments of the last century has been the integration of national economies into a global economic system. This indicator helps us see how trade has grown and how deeply connected the world’s economies have become since 1800.
- This data is expressed as a world trade volume index, with all figures relative to 1913 = 100.
- Federico & Tena-Junguito (2016) assembled trade statistics from hundreds of sources for the period up to 1938, covering almost every country and colony from 1800. These estimates are adjusted to 1913 country borders.
- Because definitions varied, the researchers standardized the historical data to modern UN conventions: smuggling, re-exports, transit trade, and bullion were excluded; fiscal years were aligned with calendar years; imports were valued including freight, and exports excluding it. Researchers used detailed price indexes to correct for inflation and shipping costs.
- From 1950 onwards, we extend the series using data from the World Trade Organization (WTO). Because the WTO index was originally set to 1950 = 100, we rescaled it to 1913 = 100, so that the historical and current series are on the same scale.
Related research and writing
What you should know about this indicator
- The volume of world trade measures the goods that countries export and import across borders. To compare trade over time, researchers calculate an index that averages exports and imports and sets 1913 as the baseline year (equal to 100). This allows us to track how global trade has changed over time.
- One of the most important developments of the last century has been the integration of national economies into a global economic system. This indicator helps us see how trade has grown and how deeply connected the world’s economies have become since 1800.
- This data is expressed as a world trade volume index, with all figures relative to 1913 = 100.
- Federico & Tena-Junguito (2016) assembled trade statistics from hundreds of sources for the period up to 1938, covering almost every country and colony from 1800. These estimates are adjusted to 1913 country borders.
- Because definitions varied, the researchers standardized the historical data to modern UN conventions: smuggling, re-exports, transit trade, and bullion were excluded; fiscal years were aligned with calendar years; imports were valued including freight, and exports excluding it. Researchers used detailed price indexes to correct for inflation and shipping costs.
- From 1950 onwards, we extend the series using data from the World Trade Organization (WTO). Because the WTO index was originally set to 1950 = 100, we rescaled it to 1913 = 100, so that the historical and current series are on the same scale.
Sources and processing
This data is based on the following sources
How we process data at Our World in Data
All data and visualizations on Our World in Data rely on data sourced from one or several original data providers. Preparing this original data involves several processing steps. Depending on the data, this can include standardizing country names and world region definitions, converting units, calculating derived indicators such as per capita measures, as well as adding or adapting metadata such as the name or the description given to an indicator.
At the link below you can find a detailed description of the structure of our data pipeline, including links to all the code used to prepare data across Our World in Data.
Notes on our processing step for this indicator
We combined historical trade data from Federico & Tena-Junguito (2016) (up to 1950) with World Trade Organization data (from 1951 onwards). The WTO index, originally set to 1950 = 100, was rescaled to 1913 = 100 using the 1950 overlap as the conversion factor. This allows the two series to be presented consistently on the same baseline.
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- All data produced by third-party providers and made available by Our World in Data are subject to the license terms from the original providers. Our work would not be possible without the data providers we rely on, so we ask you to always cite them appropriately (see below). This is crucial to allow data providers to continue doing their work, enhancing, maintaining and updating valuable data.
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Citations
How to cite this page
To cite this page overall, including any descriptions, FAQs or explanations of the data authored by Our World in Data, please use the following citation:
“Data Page: Growth of global trade”, part of the following publication: Esteban Ortiz-Ospina, Diana Beltekian, and Max Roser (2018) - “Trade and Globalization”. Data adapted from World Trade Organization, Federico and Tena-Junguito. Retrieved from https://auto-epoch.owid.pages.dev:8789/20250926-094359/grapher/growth-of-global-trade.html [online resource] (archived on September 26, 2025).How to cite this data
In-line citationIf you have limited space (e.g. in data visualizations), you can use this abbreviated in-line citation:
World Trade Organization (2024); Federico and Tena-Junguito (2016) – processed by Our World in DataFull citation
World Trade Organization (2024); Federico and Tena-Junguito (2016) – processed by Our World in Data. “Growth of global trade” [dataset]. World Trade Organization, “Evolution of trade under the WTO: handy statistics”; Federico and Tena-Junguito, “A tale of two globalizations: gains from trade and openness 1800–2010” [original data]. Retrieved November 2, 2025 from https://auto-epoch.owid.pages.dev:8789/20250926-094359/grapher/growth-of-global-trade.html (archived on September 26, 2025).