Researchers Michele Coscia and Frank Neffke, working with Growth Lab Director Ricardo Hausmann, used anonymous transaction insights provided by Mastercard to map the flow of global business travel. This research is part of a collaboration between the Mastercard Center for Inclusive Growth and the Growth Lab at the Center for International Development at Harvard Kennedy School to understand the flow and accumulation of business 'knowhow,' a key driver for inclusive economic growth. Through this network, they created a Knowhow Index which ranks countries on incoming and outgoing knowhow. Germany, Canada, the US, UK, and Korea are the top sources of knowhow flows, while Austria, Ireland, Switzerland, Denmark, and Belgium received the most knowhow.

"We've been puzzled by the fact that business travel has been growing faster than world GDP, despite the widespread adoption of alternatives like Skype, FaceTime, email, etc.," said Hausmann, Rafik Hariri Professor of the Practice of International Political Economy at Harvard Kennedy School. "We posited that maybe there is a difference between moving information and moving brains. We obviously never imagined a complete shutdown of business travel, but the paper allows us to delve into the consequences."

The team created an interactive visualization that shows the effects of the disappearance of business travelers originating from a specific country. For example, if German businesspeople stopped traveling, the research estimates that Austria, South Africa, Switzerland, Nigeria, Czechia, and Turkey would be most affected, and global GDP would decrease by 4.8%.

"According to our study, the world is benefiting enormously by mobilizing the knowhow in brains through business travel. A permanent shutdown of this channel would probably imply a double-digit loss in global GDP," said Hausmann.

The research also suggests that business travel represents another development divide. "Obstacles to business travel, such as cumbersome visa regimes and long connections, constrain access to knowhow and limit growth opportunities, especially in developing countries," said Frank Neffke, research director at the Growth Lab.

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Materials provided by Harvard Kennedy School. Note: Content may be edited for style and length.

Journal Reference:

1. Michele Coscia, Frank M. H. Neffke, Ricardo Hausmann. Knowledge diffusion in the network of international business travel. Nature Human Behaviour, 2020; DOI: 10.1038/s41562-020-0922-x