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On the occasion of the centenary of Jan Tinbergen's birth (1903), the
Erasmus University Rotterdam (formerly Netherlands School of Economics)
restored a circulatory tube machine capable of tracing the usual
macro-economic flows. I do not recall that it could do Phillips Curve
simulations, so it might be a different machine than the one mentioned by
Robert Leeson. Peter Cornelisse (maybe the last Tinbergian in what has
primarily become a centre-right institution) gave me a full demonstration
when I visited him last summer. According to him, there are only two others
in the world. Blueprints were, incidentally, lacking, which made the
restoration difficult.
Jesse Vorst
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