Growth of global trade

What you should know about this indicator
- One of the defining developments of the past two centuries has been the increasing integration of national economies into a single global system. This indicator illustrates the expansion of trade and the growing interconnectedness of the world economy since 1800.
- It shows the volume of world trade, measuring the goods exchanged across national borders. To compare trade over time, researchers construct an index that averages exports and imports and set a baseline year (here, 1800 = 1) to track how global trade has evolved.
- The historical component is based on Federico & Tena-Junguito (2016), who compiled trade statistics from hundreds of historical sources covering nearly every country and colony from 1800 to 1938, adjusting all estimates to 1913 borders. Their original index was expressed relative to 1913 = 100; here, we have re-indexed it so that 1800 = 1.
- 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). The WTO index was originally set to 1950 = 100, and we rescaled it to align with the historical series so that all data are expressed on the same 1800 = 1 scale. This allows us to present a consistent long-run view of world trade growth from 1800 to the present.
Related research and writing
What you should know about this indicator
- One of the defining developments of the past two centuries has been the increasing integration of national economies into a single global system. This indicator illustrates the expansion of trade and the growing interconnectedness of the world economy since 1800.
- It shows the volume of world trade, measuring the goods exchanged across national borders. To compare trade over time, researchers construct an index that averages exports and imports and set a baseline year (here, 1800 = 1) to track how global trade has evolved.
- The historical component is based on Federico & Tena-Junguito (2016), who compiled trade statistics from hundreds of historical sources covering nearly every country and colony from 1800 to 1938, adjusting all estimates to 1913 borders. Their original index was expressed relative to 1913 = 100; here, we have re-indexed it so that 1800 = 1.
- 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). The WTO index was originally set to 1950 = 100, and we rescaled it to align with the historical series so that all data are expressed on the same 1800 = 1 scale. This allows us to present a consistent long-run view of world trade growth from 1800 to the present.
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 (WTO) data (from 1951 onwards). We re-indexed the Federico & Tena-Junguito series, originally expressed relative to 1913 = 100, so that 1800 = 1. We then rescaled the WTO index, originally set to 1950 = 100, using the 1950 overlap to align it with this 1800 = 1 scale. This ensures both series are 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://archive.ourworldindata.org/20251104-122843/grapher/growth-of-global-trade.html [online resource] (archived on November 4, 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 4, 2025 from https://archive.ourworldindata.org/20251104-122843/grapher/growth-of-global-trade.html (archived on November 4, 2025).