Mr Granger devised a clever solution to this, called co-integration.
Now eurozone leaders are hailing the package as a further step towards closer co-operation and integration.
They claim to have offered Ethiopia co-operation, even integration, leading to the ending of all barriers between the two countries.
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Investors were also waiting for details from the European Union summit in Brussels, where leaders are discussing fiscal integration and the co-ordination of banking systems.
The agreement on a financial transactions tax was, he told reporters, a good example of how countries could be brought into eurozone integration through closer co-operation, signing up to agreements at a later stage.
In 1993, he co-founded Informatica at a time when data integration was not nearly the buzz-phrase it is today.
If Congo and Rwanda are to co-exist and prosper, they need economic integration and stability, not war in the Kivus.
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Baroness Williams said fiscal integration - such as tax co-operation between eurozone countries - was now likely and it would require "a substantial new treaty" or amendment to the Lisbon Treaty.
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Jesse Robbins, Chief Community Officer and co-founder of OpsCode, creator of the Chef systems integration framework for the cloud, pointed out in October 2007 that working such magic creates a competitive advantage.
This has a role to play, especially in political co-operation and (pace Mr Kirchner) energy and transport integration.
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Integration is often dismissed as a buzz word, meaning little more than the co-ordination of bus, tube and train time-tables.
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