zeean was set-up to collect and provide data on global supply chains. It is designed as a community effort of mutual benefit: Along the lines with Wikipedia a valid and comprehensive database of economic flows at high regional, sectoral and temporal detail is generated. The data is free for academic use by any registered user.


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Extreme weather events like floods, droughts and storms are likely to become more frequent and intense as global warming accelerates. Since world markets are highly linked and local economies are increasingly relying on global supply and value added chains, extreme weather in one place may have repercussions elsewhere (see Nature commentary).


Accordingly, the influence of climate change on the worldwide flows of material, communication, electricity and energy, including their interactions and the rapid dynamics of volatile markets, needs to be modelled and understood. This requires profound knowledge about economic flows and other interdependencies. To this end we set-up the wiki zeean as a community project for collecting data on global supply chains.

The short term idea is that making comprehensive economic data available will alert governments and companies to critical bottlenecks and will thus empower them to develop necessary responses.

In the long term, we intend to produce a realistic supply chain risk assessment combining economic data with probability assessments of future climatic extremes from global and regional climate models. Such an assessment will enable companies and governments to factor in the costs of climate change whereby market forces will be allowed to stabilize the system.


zeean is based on the EORA world MRIO which depicts economic flows (in US $ per year, basic price) between 26 sectors in 186 regions for all years since 1990. This data is scaled down to a subregion level by a simple approximation-and-update algorithm.


As a registered user you can help to improve, specify and complete this database by entering further information about economic flows (see Howto for help).

According to the principles of Wikipedia, the information posted to zeean is cross-checked and validated by other registered users who are assessed by the quality of their input. Furthermore open source algorithms and analysis tools guarantee the matching of different, possibly contradictory, data inputs. To avoid legal issues only openly available data can be included.

With each piece of additional information, zeean improves in accuracy. You can see a network evolve, analyze its connectivity and identify fragile links or nodes. By accommodating a variety of data, which do not have to be homogeneous, zeean allows for regional and economic foci of special interest.